14th week of 2012 patent applcation highlights part 14 |
Patent application number | Title | Published |
20120080941 | SCALABLE INTELLIGENT POWER SUPPLY SYSTEM AND METHOD - A scalable intelligent power-supply system and method capable of powering a defined load for a specified period of time is disclosed and claimed. Multiple external AC and DC inputs supply power to the system if available and required. An internal DC input from a back-up energy source is on board. The back-up energy source is scalable by adding additional energy cartridges such as batteries in racks mounted within frames of the system. The AC and DC inputs (including the internal DC input) are controlled, measured, sensed, and converted by circuitry controlled by the microprocessor into multiple AC and/or DC outputs. A microprocessor manages power input to, within, and output from the system. The performance of a Lithium-ion batteries used to power an automobile can be determined on the basis individual battery packs or individual battery cells within the packs. | 2012-04-05 |
20120080942 | SMART MICROGRID - Described herein are embodiments of microgrid systems which may be used as stand-alone systems or may be connected to a larger, integrate power supply system. In some embodiments, a system comprises smart microgrid system comprising at least one electrical power bus connectable to at least one input power source by one or more switchable connections, a communication network coupled to the smart microgrid system, and a controller coupled to the communication network. In some embodiments the controller comprises logic to monitor power outputs from the at least one input power source monitor one or more power loads coupled to the at least one and selectively connect one or more of the input power sources to the at least one electrical power bus. | 2012-04-05 |
20120080943 | Photovoltaic Power Systems - A power system includes a plurality of DC/DC converters and a DC/AC inverter. The plurality of DC/DC converters having outputs electrically connected in parallel for supplying a DC voltage bus to an input of the DC/AC inverter. The plurality of DC/DC converters each include a maximum power point tracker (MPPT). Various DC/DC converters and DC/AC inverters suitable for use in this system and others are also disclosed. | 2012-04-05 |
20120080944 | Grid Shifting System for a Lighting Circuit - A power management system for a lighting circuit may include a grid shifting controller that includes a processor and a connection to an external power source. The power management system may also include a communication interface associated with the grid shifting controller. The grid shifting controller may be configured to provide control information to a processor of at least one grid shifting electrical fixture over the communication interface, the control information being configured to direct the at least one grid shifting electrical fixture on the use of power from the external power source and an energy storage device associated with the at least one grid shifting electrical fixture. | 2012-04-05 |
20120080945 | Power Management Unit Systems and Methods - Systems and methods provide for a power management unit and its operation. The power management unit includes: a step-down power converter configured to receive a first voltage and output a second voltage, wherein the second voltage is less than the first voltage and at least one step-up power converter configured to receive the second voltage and output a third voltage, wherein the third voltage is greater than the second voltage. It also includes an inductive element connected to the step-down power converter and the at least one step-up power converter and configured to store energy and selectively release the stored energy, wherein the inductive element is time shared by both the step-down power converter and the at least one step-up power converter; and a finite state machine configured to control the time sharing of the inductive element. | 2012-04-05 |
20120080946 | ELECTRONIC DEVICE AND METHOD FOR MANAGING CURRENT OF THE ELECTRONIC DEVICE - A method for managing current of an electronic device initializes a control signal of a baseboard management controller (BMC) of the electronic device to be a low level before the electronic device is powered on, maintains the control signal under a low-level status for a specified time upon the condition that a power on signal of the electronic device is received, and rotates the electronic fan with a low current and a low speed. The method further sets the control signal to be a high level when the specified time elapses to rotate the electronic fan with a normal current and a normal speed, and sets the control signal to be the low level upon the condition that a power off signal of the electronic device is received. | 2012-04-05 |
20120080947 | POWER SUPPLY APPARATUS - The power supply includes an output unit that converts a DC voltage and outputs the DC voltage; a capacitor that stabilizes the DC voltage output from the output unit, the power supply being able to be operated in a power saving mode in which a power consumption is reduced by stopping a whole or part of an operation of a load operated by the DC voltage output from the output unit; a detection unit that detects that a power is cut off; a discharging load that discharges the capacitor; and a control unit that performs control so as to operate the charging load when the detection unit detects that the power is cut off during the operation in the power saving mode. | 2012-04-05 |
20120080948 | CONNECTION DEVICE FOR CONNECTING BETWEEN ELECTRICAL DEVICES - A connection device for connecting between a multifunction peripheral and USB devices. A hub unit is disconnectably connected to the multifunction peripheral via a first interface for enabling power supply from the multifunction peripheral to the hub unit. The hub unit is also disconnectably connected to the USB devices via a second interface for enabling power supply from the hub unit to the USB devices. A dedicated power supply connector is connected to a power supply section of the multifunction peripheral via wiring for enabling power supply from the multifunction peripheral to the hub unit. A hub circuit relays data between the multifunction peripheral and one of the USB host connectors of the hub unit. Power from the first interface to the hub circuit is supplied through a first power path, and power from the multifunction peripheral to the USB devices is supplied through a second power path. | 2012-04-05 |
20120080949 | POWER MONITORING SYSTEM - A power monitoring system to monitor electrical power supply to electrical equipments. The monitor includes an energy saving device to reduce unnecessary power consumption. A control means for enabling control of power consumption of electrical devices in response to the data output of the monitored power consumption. | 2012-04-05 |
20120080950 | Analog photovoltaic power circuit - The present invention discloses an analog photovoltaic power circuit, including: a photovoltaic device group for receiving photo energy to generate an input voltage, the input voltage corresponding to an input current; a power stage circuit for receiving the input voltage and generating an output voltage; an optimum current or voltage estimation circuit for receiving a predetermined voltage and estimating an optimum current or voltage point corresponding to an optimal output point according to a direction of variation of the input current and a direction of variation of the power generated by the photovoltaic device group; and an analog comparison and control circuit for comparing the optimum current or voltage with the input current or voltage, to thereby control the operation of the power stage circuit. | 2012-04-05 |
20120080951 | POWER SOURCE CIRCUIT AND POWER SOURCE MANAGEMENT METHOD THEREOF - A power source circuit includes a power source detection unit, a control unit and a switch unit. The power source detection unit detects whether a plurality of power sources including a green power source is supplied to the power source circuit, and detects and outputting a power value of the green power source. In addition, the control unit is electrically coupled to the power source detection unit and a load, and the control unit further detects a power consumption value of the load, to generate a switch signal to the switch unit according to the power consumption value of the load and a result detected by the power source detection unit. Therefore, the switch unit selects the green power source and at least one of other power sources thereof to supply electric power to the load when necessary. | 2012-04-05 |
20120080952 | CURRENT AND VOLTAGE DETECTION CIRCUIT, AND CURRENT CONTROL CIRCUIT - Disclosed is a current and voltage detection circuit comprising: a voltage input terminal to which a direct current voltage is applied; a voltage comparison circuit that determines which of the applied voltage and a predetermined voltage is larger; a switching element connected in series to a current-voltage conversion unit, between a positive electrode terminal of the power supply and a reference potential point of the circuit; and a control circuit that generates a control signal of the switching element in response to output of the voltage comparison circuit, wherein the circuit turns ON the switching element and determines the voltage, by the voltage comparison circuit, when a voltage supply capability or current supply capability is low; and turns OFF the switching element by the control signal and determines the voltage, when the voltage comparison circuit determines that the voltage is higher than the predetermined voltage. | 2012-04-05 |
20120080953 | MULTI-INPUT POWER SUPPLY APPARATUS WITH REGULABLE OUTPUT POWER - A multi-input power supply apparatus with regulable output power includes an AC-to-DC conversion unit, a DC-to-DC conversion unit, an output voltage control unit, and an output power status display unit. The AC-to-DC conversion unit has an AC-to-DC stage feedback control subunit. The DC-to-DC conversion unit has a current sensing subunit, a DC-to-DC conversion subunit, a filter subunit, a protective disconnecting switch subunit, and a DC-to-DC stage feedback control subunit. The output voltage control unit provides a signal to the AC-to-DC stage feedback control subunit and the DC-to-DC stage feedback control subunit, thus regulating the output voltage of the AC-to-DC conversion unit and the output voltage of the DC-to-DC conversion unit. The output power status display unit displays the output voltage. | 2012-04-05 |
20120080954 | ENHANCED POWER IN HDMI SYSTEMS - There is provided a source device, which is adapted to communicate with a sink device through an HDMI cable. The sink device comprises an internal circuit, handshaking circuitry adapted to verify if the sink device is able to supply a current on a line of the HDMI cable, an internal power supply intended for powering the line and a switching circuit able to uncouple the internal power supply from the line and able to couple the internal circuit to the line. There is also provided a sink device, which is adapted to communicate with a source device through an HDMI cable. The sink device comprises a power supply, hand-shaking circuitry able to indicate that the sink device is able to supply a current on a line of said HDMI cable, and a circuit able to couple the power supply to the line. | 2012-04-05 |
20120080955 | High Voltage Energy Harvesting and Conversion Renewable Energy Utility Size Electric Power Systems and Visual Monitoring and Control Systems for Said Systems - A renewable energy, utility size electric power system is provided with a high voltage, renewable energy harvesting network connected by a direct current link to a centralized grid synchronized multiphase regulated current source inverter system. The harvesting network includes distributed renewable energy power optimizers and transmitters that control delivery of renewable energy to the grid synchronized multiphase regulated current source inverter system. A visual immersion monitoring and control system can be provided for a three-dimensional, visually-oriented, virtual reality display, command and control environment. | 2012-04-05 |
20120080956 | Wireless Energy Transfer Using Array of Resonant Objects - A system for exchanging energy wirelessly comprises an array of at least three objects having a resonant frequency, each object is electromagnetic (EM) and non-radiative, and generates an EM near-field in response to receiving the energy, wherein each object in the array is arranged at a distance from all other objects in the array, such that upon receiving the energy the object is strongly coupled to at least one other object in the array via a resonant coupling of evanescent waves; and an energy driver for providing the energy at the resonant frequency to at least one object in the array, such that, during an operation of the system, the energy is distributed from the object to all other objects in the array. | 2012-04-05 |
20120080957 | WIRELESS POWER TRANSFER APPARATUS AND METHOD THEREOF - In accordance with various aspects of the disclosure, a method and apparatus is disclosed that includes features of a receiving antenna configured to wirelessly receive power transmitted by a transmitting device and arranged to associate or dissociate with the transmitting device. | 2012-04-05 |
20120080958 | RELIABLE CONTACT AND SAFE SYSTEM AND METHOD FOR PROVIDING POWER TO AN ELECTRONIC DEVICE - An electronic system which includes a power delivery surface that delivers electrical power to an electrical or electronic device. The power delivery surface may be powered by any electrical power source, including, but not limited to: wall electrical outlet, solar power system, battery, vehicle cigarette lighter system, direct connection to electrical generator device, and any other electrical power source. The power delivery surface delivers power to the electronic device wirelessly. The power delivery surface may deliver power via a plurality of contacts on the electrical device conducting electricity from the power delivery surface. The electrical device may be mobile device. Each contact may be shaped to improve power delivery reliability. The power delivery surface may further include circuitry to protect against accidental electrocutions. | 2012-04-05 |
20120080959 | Linear vibrator - There is provided a linear vibrator according to an exemplary embodiment of the present invention, including: a fixing unit providing an internal space having a predetermined size; a plurality of magnets disposed in the internal space of the fixing unit and positioned to have the same poles face each other so as to generate magnetic force; a vibration unit disposed to face the magnets and including a coil generating electromagnetic force through interaction with the magnets and a vibrating mass body; and an elastic member joined to the fixing unit and the vibration unit to provide elastic force. | 2012-04-05 |
20120080960 | LOW COST MULTI-COIL LINEAR ACTUATOR - Disclosed herein are methods and systems for low cost linear actuators that can deliver strokes and forces at different values. The embodiments presented herein have parts and components that may be usable for both multi-coil and single-coil actuator designs. According to one embodiment, a magnet housing may removably or permanently coupled to a coil assembly having any number of coils. According to a further embodiment, an actuator housing may be coupled to a magnet housing having any number of magnets or coils. | 2012-04-05 |
20120080961 | ONE-PIECE RESIN COMPONENT FOR DYNAMOELECTRIC MACHINE AND MANUFACTURING METHOD USING THE SAME - In a one-piece resin component, a plurality of stackable resin portions is resin-molded integrally with a resin housing of a dynamoelectric machine and radially outwardly projects from the resin housing. Each the plurality of stackable resin portions is adapted to be stacked against a corresponding one of a plurality of stackable resin portions of another one-piece resin component that is generally identical to the one-piece resin component. | 2012-04-05 |
20120080962 | BRUSH HOLDER FOR AN ELECTRIC MOTOR - A brush holder for an electrical motor has an electrically insulating support structure supporting a number of brushes. The support structure has a molded-plastic body incorporating conducting elements forming conductive paths for connecting the brushes to a power supply. A discontinuity is provided in one of the connection paths. A resiliently deformable and electrically conductive strip is connected across the discontinuity with a substantially permanent connection at one end and a heat-meltable connection at the other, with a resilient pre-load tending to break the heat-meltable connection. A voltage drop resistor is provided for operating the motor at a reduced speed. One terminal of the resistor is connected to one side of the discontinuity via a thermally and electrically conducting connection. | 2012-04-05 |
20120080963 | ELECTRIC POWER TOOL - An electric power tool of the present invention includes a motor used as a drive source housed in a dual-separated type housing and includes a bearing support member that covers the outer circumferential surface of a bearing of the motor and supports the bearing from outside in the radial direction, and is configured such that the bearing and one end of the bearing support member in the axial direction are inserted in a tool component disposed coaxially, and a protruding portion that is the other end of the bearing support member and axially protrudes from the tool component is supported by receiving portions of a pair of housing parts. | 2012-04-05 |
20120080964 | Coolant Channels for Electric Machine Stator - Embodiments of the invention provide an electric machine module including an electric machine. The electric machine includes a stator assembly with a plurality of stator laminations. The plurality of stator laminations include a plurality of different outer diameters and some of the plurality of stator laminations include at least two different radii. At least one circumferential coolant channel and at least one axial coolant channel can be defined by the plurality of stator laminations. The at least one circumferential coolant channel can be defined substantially around a circumference of the stator assembly and the at least one axial coolant channel can be defined substantially along an axial length of the stator assembly. | 2012-04-05 |
20120080965 | Coolant Channels for Electric Machine Stator - Embodiments of the invention provide an electric machine module including an electric machine with a stator assembly. The stator assembly includes a plurality of stator laminations and the plurality of stator laminations include a plurality of different outer diameters. The plurality of stator laminations are positioned relative to one another to form radially-extending fins. At least one circumferential coolant channel is defined along the circumference of the stator assembly by the plurality of stator laminations at least partially between the radially-extending fins. | 2012-04-05 |
20120080966 | HEAT-DISSIPATION STRUCTURE FOR MOTOR - A heat-dissipation structure for a motor including a motor shell, a control box, and a coupling shell. One end of the coupling shell is connected to the bottom of the motor shell and the other end thereof is connected to the top of the control box and a plurality of air vents are arranged on a side wall of the coupling shell. The introduction of the coupling shell enlarges the inner space of the control box and achieves rapid heat dissipation and a better heat dissipation effect. The heat-dissipation structure features rapid heat dissipation, excellent heat dissipation effect, a simple structure, an attractive shape, and great universality. | 2012-04-05 |
20120080967 | DYNAMOELECTRIC MACHINE COIL SPACEBLOCK HAVING FLOW DEFLECTING STRUCTURE IN COIL FACING SURFACE THEREOF - A dynamoelectric machine includes a rotor having a plurality of adjacent coils; a spaceblock disposed between adjacent coils to define at least one cavity adjacent the spaceblock and between mutually adjacent coils; and the spaceblock including a body having one of: a substantially T-shaped cross-section, a substantially hexagonal cross-section and a substantially truncated arrow cross-section, the cross-section providing at least one flow deflector structure on at least one cavity facing surface of the spaceblock for intercepting and redirecting circulating coolant flow in the cavity towards a central region of the at least one cavity. | 2012-04-05 |
20120080968 | MAGNETIC BRAKE FOR MOTOR - A magnetic braking motor system including a motor and a magnetic brake assembly. The motor includes a motor enclosure and a motor shaft rotatably mounted with respect to the motor enclosure. The magnetic brake assembly includes a rotating magnetic element and a stationary magnetic element. The rotating magnetic element is mounted with respect to the motor shaft. The stationary magnetic element is mounted with respect to the motor enclosure. A magnetic field is provided between the rotating magnetic element and the stationary magnetic element. | 2012-04-05 |
20120080969 | ROTOR, GENERATOR AND WIND TURBINE - A rotor for a generator of e.g. a wind turbine is disclosed. The rotor includes an axis of rotation, a circular rotor body and a circular stabilization structure. The circular stabilization structure is arranged at a face side of the circular rotor body. The stabilization structure includes a brake disc. | 2012-04-05 |
20120080970 | HIGH VOLTAGE AND HIGH TEMPERATURE WINDING INSULATION FOR ESP MOTOR - A litz wire includes, in one embodiment, a plurality of twisted strands, wherein one or more of the strands includes a composite magnet wire. The composite magnet wire includes a metal wire having a nanocoating on its outer surface. The nanocoating includes an electrical insulating polyimide matrix and a plurality of alumina nano particles dispersed homegenueoslytherein. The alumina nano particles have a phenyl siloxane surface coating. The litz wire has a temperature index of at least 300° C. as obtained in accordance with either ASTM E1641, ASTM E1877, or ASTM D2307. Motors and ESP assemblies utilizing the litz wire are also disclosed. | 2012-04-05 |
20120080971 | DISC MOTOR AND ELECTRIC WORKING MACHINE EQUIPPED WITH DISC MOTOR - A disc motor includes an output shaft, a coil disc, an electric current supplying section, and a magnet. The coil disc is disc-shaped. The coil disc includes a first coil and a second coil. The first coil has a plurality of first partial coil sections radiating outward in a radial direction of the output shaft and first connecting sections each connecting two first partial coil sections. The second coil has a plurality of second partial coil sections radiating outward in the radial direction and second connecting sections each connecting two second partial coil sections. The total number of the first partial coil sections is different from that of the second partial coil sections. The electric current supplying section is configured to supply electric current to the coil disc. The magnet is disposed in opposition to the first and second partial coil sections. | 2012-04-05 |
20120080972 | SINTERED MAGNET AND METHOD FOR PRODUCING THE SAME - There is provided a sintered magnet that is capable of, as compared to conventional divided magnets, significantly reducing eddy loss, flexibly accommodating diverse shape and dimensional variations, and significantly lowering productions costs while maintaining the desired coercivity, as well as a method of producing same. It is a sintered magnet | 2012-04-05 |
20120080973 | ARMATURE FOR ROTARY ELECTRIC APPARATUS AND MANUFACTURING METHOD FOR THE SAME - A laminated core includes laminated core sheets each formed by press working. Each core sheet has a teeth portion corresponding to the teeth. An insulating film covers at least a portion of the laminated core corresponding to the teeth. A burr caused by the press working in each core sheet is located on a side of one end of the laminated core in a laminating direction of the laminated core. The burr of the teeth portion of one of the core sheets located at the one end is folded toward the other end of the laminated core in the laminating direction. | 2012-04-05 |
20120080974 | DISC MOTOR AND ELECTRIC WORKING MACHINE EQUIPPED WITH DISC MOTOR - A disc motor includes an output shaft, a coil disc, an electric current supplying section, and a magnet. The coil disc is disc-shaped. The coil disc includes an at least two-layer structure having a first layer and a second layer. The coil disc includes a coil having a plurality of partial coil sections each extending outward in a radial direction of the output shaft and connecting sections each connecting together two partial coil sections. The electric current supplying section supplies an electric current to the coil. The magnet is disposed in opposition to the plurality of partial coil sections. The plurality of partial coil sections includes first partial coil sections formed on the first layer and second partial coil sections formed on the second layer. The first partial coil sections provide a total number different from that of the second partial coil sections. | 2012-04-05 |
20120080975 | Axial Coil for a Slotless Electric Motor - An axial self-supported coil for a slotless rotating electric motor. The axial self-supported coil includes one coil body formed by winded electrical conductors, with a head at each end, the electrical conductors in the coil body being substantially coplanar with the motor rotation axis, each coil head having an axial thickness, the axial self-supported coil having a conductor filling factor, characterized in that at least one of the electrical conductors is a multi-stranded conductor, in that a deformation arrangement of the multi-stranded conductor increases the conductor filling factor and in that a bending arrangement of the multi-stranded conductor reduces the axial thickness of each coil head. | 2012-04-05 |
20120080976 | STATOR FOR ELECTRICAL ROTATING MACHINE - Included are a pair of insulators arranged on axial end surfaces of a split core, and an insulating film attached to lateral side surfaces of the tooth part, for insulating the split core from a coil wound around the tooth part. Each insulator includes projections projecting further than a tooth front end part in the circumferential direction, slits which are formed in the respective projections to a corresponding axial end surface side of the tooth front end part and into which the insulating film is inserted, and ribs formed, on an end surface side in the circumferential direction, in the respective projections. The insulating film inserted into the slits is folded back to a back yoke part side with the ribs interposed therein, and fixed by being interposed between the ribs at tip portions of projections of adjacent insulators. Accordingly, the insulating film can be assuredly fixed and prevented from escaping from a slot. | 2012-04-05 |
20120080977 | MULTI-GAP ELECTRIC ROTATING MACHINE - In a multi-gap electric rotating machine, a stator core has a radially outer portion, a radially inner portion and a connecting portion. The radially outer portion is located radially outside of a rotor core with a radially outer magnetic gap formed therebetween. The radially inner portion is located radially inside of the rotor core with a radially inner magnetic gap formed therebetween. The connecting portion radially extends to connect the radially outer and inner portions and is located on one axial side of the rotor core with an axial magnetic gap formed therebetween. A stator coil is formed of electric wires mounted on the stator core. Each of the electric wires has radially-outer in-slot portions, radially-inner in-slot portions and radially-intermediate in-slot portions, which are respectively received in slots of the radially outer portion, slots of the radially inner portion and slots of the connecting portion of the stator core. | 2012-04-05 |
20120080978 | RADIOACTIVE ISOTOPE ELECTROSTATIC GENERATOR - A radioactive isotope electrostatic generator may include emitter electrodes and collector electrodes. The emitters and collectors may be made of low atomic weight material, and may be formed as a mesh. A radioactive isotope may be homogenously distributed on the emitter electrodes. | 2012-04-05 |
20120080979 | SURFACE ACOUSTIC WAVE COMPONENT - A surface wave component contains at least two interdigital transducers having natural unidirectionality, disposed on a piezoelectric crystal substrate, which form a transducer pair consisting of transmission transducer and reception transducer. The transducers consist of an interdigital electrode structure having prongs and bus bars, and have opposite forward directions. At least two of the prongs form a transducer cell that has at least one excitation center for exciting an electrical potential wave and at least one reflection center for reflection of electrical potential waves, The transducer cells consist of two prongs having the same width, having a distance between the prong centers equal to half the length of a transducer period, whereby the electrode structures of the two transducers consist of the same material, but have different layer thicknesses. | 2012-04-05 |
20120080980 | ELECTROACTIVE ELASTOMER ACTUATOR AND METHOD FOR THE PRODUCTION THEREOF - Described is an electroactive elastomer actuator having at least one first band-shaped electroactive elastomer coating and at least one first and one second surface electrode, which are separated by the at least one first electroactive elastomer coating. At least one second electroactive elastomer coating is applied to a surface of the second surface electrode facing away from the electroactive elastomer coating, which forms a band-shaped coating material jointly with the first and second surface electrodes and the first elastomer coating located between the two surface electrodes. The band-shaped coating material is wound around a flat coil form while forming at least two coating material layers. A surface of the first surface electrode facing away from the first elastomer coating makes surface contact with the second electroactive elastomer coating. | 2012-04-05 |
20120080981 | Piezoelectric Power Generator - A piezoelectric power generator that includes a piezoelectric laminate in which a plurality of rectangular-shaped piezoelectric elements each having electrodes formed on a substrate are connected at both ends thereof to each other, and in which a portion other than connection portions is capable of vibrating. In the piezoelectric laminate, a portion of the element at the uppermost layer is a fixed portion, and a weight is mounted to the element (free end) at the lowermost layer. Each piezoelectric element is decreased in rigidity from the element at the uppermost layer toward the element at the lowermost layer. | 2012-04-05 |
20120080982 | Internal Cooling of Stator Assembly in an Electric Machine - Embodiments of the invention provide an electric machine module including an electric machine with a stator assembly. The stator assembly includes a plurality of stator laminations coupled together and a plurality of conductors positioned through axial slots of the plurality of stator laminations. The electric machine module also includes a coolant channel at least partially defined within the axial slots and a housing. The housing at least partially circumscribes the electric machine and at least partially defines a machine cavity which is in fluid communication with the coolant channel. | 2012-04-05 |
20120080983 | STATOR WITH COOLING SYSTEM AND ASSOCIATED MOTOR - An electric motor is disclosed that includes a rotor having an axis and being rotatable about the axis. A stator is positioned about the rotor and includes a plurality of laminates with each laminate in the plurality of laminates including a peripheral edge defining a notch. The plurality of laminates includes a plurality of laminate subsets, with the laminates in each laminate subset arranged with the notches aligned to define a passage. The laminate subsets are arranged such that the passages defined by the laminate subsets form a substantially helical channel along the periphery of the stator. | 2012-04-05 |
20120080984 | ASSEMBLABLE SERVER CABINET - A server cabinet which can be shipped in a disassembled condition and assembled by a user, thus reducing shipping costs and shipping damages. Optionally, frame components can be formed from just a few extrusions which can be connected with a bracket. | 2012-04-05 |
20120080985 | Truss Based Display System - A display unit comprising a plurality of vertical truss members anchored to a floor surface; a plurality of horizontal rails attached to the vertical truss members thereby forming a frame; a horizontal track anchored to a floor surface in front of the vertical truss members; a plurality of cantilever supports attached across the top of the frame, the cantilever supports each having a front portion providing an upper frame and lower frame; a plurality of upper rectangular panels mounted in a first row adjacent one another in the upper frames; a plurality of lower rectangular panels mounted in the lower frames adjacent one another a second row below the first row; first and second side panels anchored to the floor track and to a plurality of the horizontal rails; a plurality of cabinets located adjacent one another between the first and second side panels and anchored to the floor track and at least one of said horizontal rails; and a plurality of display panels disposed between the top surfaces of the cabinets and the lower edges of the lower rectangular panels. | 2012-04-05 |
20120080986 | COMPUTER ENCLOSURE - A computer enclosure includes a chassis and a movable assembly. The chassis defines an opening. Two blocking pieces extend from the chassis at opposite sides of the opening. The movable assembly includes a post movably mounted to the chassis, and a closing member extending from a first end of the post and located between the blocking pieces to cover or uncover the opening with moving of the post. | 2012-04-05 |
20120080987 | IMAGE FORMING APPARATUS AND OPENING/CLOSING DEVICE - An image forming apparatus includes: an image forming apparatus main body; a supported body rotatably supported with the image forming apparatus main body; and a buffer device that shock-absorbs a shock due to a rotational operation of the supported body, the buffer device having: a guide member provided in the supported body; and a buffer device main body having a guided member provided in the image forming apparatus main body and guided with the guide member and a pressing member that presses the guided member, and in assembly before attachment of the buffer device main body to the image forming apparatus main body, in a state where the supported body is opened from the image forming apparatus main body, when the guided member is attached to the guide member, a movement prevention part provided in the guided member or the guide member preventing movement of the guided member in a direction away from the guide member. | 2012-04-05 |
20120080988 | PULL-OUT GUIDE FOR DRAWERS - The invention relates to a pull-out guide for drawers, comprising a body rail to be fastened to a furniture body and at least one pull-out rail that can be moved relative to the body rail, and comprising an adjustment device, by which a position of a drawer that is connected or can be connected to the pull-out rail can be adjusted, wherein the adjustment device comprises at least one retaining pin that can be inserted in a provided borehole of the drawer and a bearing part mounted on the pull-out rail, wherein the bearing part is arranged at the rear end of the pull-out rail and extends at a distance to an upper side of the pull-out rail in a substantially horizontal direction in the longitudinal direction of the pull-out rail, wherein the bearing part is mounted adjustably inside the retaining pin. | 2012-04-05 |
20120080989 | REFRIGERATOR DOOR POCKET HINGE ASSEMBLY - A refrigerator is provided with a casing in the form of a shell that defines an internal storage compartment, such as a freezer or fresh-food section. A door is configured on the casing to provide access to the storage compartment, with the door closing on front edges of the casing. A hinge assembly connects the door to the casing and includes a hinge bracket having an insert end that extends through one of the front edges, for example the top front edge, and is fixed to an internal surface of the casing. The hinge bracket has an opposite end that is rotationally connected to the door for hinged support of the door on the casing. | 2012-04-05 |
20120080990 | TOP-LOADED REFRIGERATOR DOORS - Top hinge-weight loaded refrigerator doors are provided. A refrigerator apparatus is provided that includes a body portion; and at least one door hinged to the body portion using at least one top hinge. The top hinge is a weight load bearing hinge. | 2012-04-05 |
20120080991 | CONSUMER APPLIANCE WITH FINGER GUARD - A consumer appliance, such as a refrigerator, includes a door attached to the casing along a hinge side of the door. An elongated finger guard is pivotally mounted to a back surface of the door along the hinge side of the door. The finger guard has an extension portion with a floating edge and is pivotally biased to swing away from the appliance casing so that the floating edge of the extension portion engages against an item, such as a cabinet, adjacent to the appliance casing. The extension portion has a transverse width so as to slide along and remain engaged against the item adjacent to the appliance in all positions of the door. | 2012-04-05 |
20120080992 | LED BULB STRUCTURE - An LED bulb structure includes a base having a first end and a second end. The first end has a connection section. The second end has a surface section and an extension section substantially perpendicularly protruding from the second end without interfering with the surface section. The extension section has a mount face on which an LED module is disposed and a heat dissipation section disposed on an outer surface of the extension section. a transparent space being defined between the mount face and the surface section. When the LED bulb structure is horizontally locked in a socket on a wall of a building, the projection angle and range of the LED module are modified to enhance lighting efficiency of the LED module. | 2012-04-05 |
20120080993 | LED Lamps Using Recycled Metal Containers as Heat Sinks - The core of this invention is that using recycled metal cans (after pretreatment processes) as a good heat sink, the lamp cups, of the LED lamps to adhere to the lamp bases, circuit boards with LED and lamp cups through advanced technology, there by producing a variety of LED lamps. And finally, this invention achieves a complete metal construction of LED lamps which not only improves the thermal performance of LED lamps but also develops a low-carbon, environmentally friendly and economical way of metal containers recycling consequently makes this LED lamps suitable to be widely used for the purpose of illumination or decoration. | 2012-04-05 |
20120080994 | LED Lamp Whose Lighting Direction Can Be Adjusted Easily and Quickly - An LED lamp includes a housing, a conducting ring mounted on the housing, a shade swivelably mounted on the housing, an LED module mounted on the shade, and two conducting pins each electrically connected with the LED module and each electrically connected with the conducting ring. Thus, when the LED module is moved in concert with the shade, each of the two conducting pins is slidably in contact with the conducting ring to connect the LED module electrically with the conducting ring and to connect the LED module electrically with the metallic base and the power contact plate through the conducting ring so as to form an electrical circuit so that the LED module can be rotated through three hundred and sixty degrees (360°) so as to change the lighting direction of the LED module. | 2012-04-05 |
20120080995 | PLASMA JET IGNITION PLUG AND MANUFACTURING METHOD THEREOF - A plasma jet ignition plug that reliably prevents current leakage with restraint on variation in the position of a ground electrode relative to an insulator and on overheat of the ground electrode, for stable generation of plasma. The plug includes an insulator having an axial bore extending in the direction of an axis CL | 2012-04-05 |
20120080996 | SPARK PLUG - A task of this invention is to provide a spark plug that is superior in withstand voltage characteristics at high temperatures. A spark plug of this invention is equipped with a center electrode, an insulator, and a metal shell, and is characterized by that the insulator is equipped with an alumina-based sintered body containing silicon component (Si component), magnesium component (Mg component), at least one component of calcium component, strontium component, and barium component, and a rare earth element component (RE component), that a grain boundary phase of the alumina-based sintered body has a hexaaluminate crystal containing the RE component, that, in the alumina-based sintered body, the weight ratio of the RE component to the Mg component is 5.4≦RE oxide/MgO≦17.5, and that the content of an alkali metal component in terms of oxide in a spot having a diameter of 0.3 nm, where the hexaaluminate crystal or the hexaaluminate crystal and Si component in the grain boundary phase is present by TEM, ranges from 0.01 weight % to 20 weight %. | 2012-04-05 |
20120080997 | IMAGE DISPLAY APPARATUS - A spacer positioned between a faceplate and a rear plate so as to extend across a first region on which an anode is provided and into a second region on which the anode is not provided is included. The spacer includes a plurality of conductive members extending across a first section of a side surface of the spacer that underlies the first region and into a second section of the side surface of the spacer that underlies the second region, distances from the faceplate to the conductive members differing from each other. The plurality of conductive members have an end portion in the second section. The position of the end portion of a conductive member farther from the faceplate is farther from the end portion of the anode. | 2012-04-05 |
20120080998 | Complementary Color Light Source Device - The invention provides a complementary color light source device, which comprises a light emitting unit, a mask and a complementary color film layer. The mask comprises a hollow portion, and the hollow portion contains the light emitting unit. The complementary color film layer is uniformly attached to a side of the mask, and a part of the first wavelength light generated by the light emitting unit passes through the complementary color film layer to generate a second wavelength light. The second wavelength light and the first wavelength light generated by the light emitting unit are color mixed to generate white light. The invention provides the first wavelength light generated by the light emitting unit to transform to the second wavelength light with complementary color, and color mixing both lights to achieve a light source device with low cost, high light emission efficiency, high service life and high color rendering index. | 2012-04-05 |
20120080999 | PHOSPHOR AND LIGHT EMITTING DEVICE - The present invention provides a phosphor, including a constituent having the formula Ca | 2012-04-05 |
20120081000 | LED ENCAPSULATION PROCESS AND SHIELD STRUCTURE MADE THEREBY - The present invention discloses an LED encapsulation process and a shield structure made thereby. Firstly, a first encapsulation layer is provided, phosphor powder is uniformly disposed on a surface of the first encapsulation layer, and a second encapsulation layer is disposed on the phosphor powder to fully cover the first encapsulation layer so that the phosphor powder is sandwiched between the two encapsulation layers to ensure its arrangement position. Finally, the aforementioned members are heated and stamped to form one piece which is cut into a required shield shape. | 2012-04-05 |
20120081001 | Green Emitting Phosphor - A green emitting phosphor is provided, allowing the internal quantum efficiency to be increased. The green emitting phosphor comprises a mother crystal containing Sr, Ga and S, and a luminescent center, characterized in that, in an XRD pattern, the ratio of the diffraction intensity of the maximum peak appearing at diffraction angle 2θ=14 to 20° over the diffraction intensity of the maximum peak appearing at diffraction angle 2θ=21 to 27° is 0.4 or greater. | 2012-04-05 |
20120081002 | SHORT ARC TYPE DISCHARGE LAMP - A short arc type discharge lamp wherein a cathode and an anode are arranged opposite to each other in an interior of a light emitting tube and said cathode consists of a main body part with tungsten as the main constituent and an emitter part comprised of thoriated tungsten, wherein an oxygen content of the main body part of said cathode is lower than that of the emitter part, and band-shaped tungsten carbide is formed at the tip end face of the emitter part of said cathode. | 2012-04-05 |
20120081003 | TERAHERTZ INTERACTION CIRCUIT HAVING RIDGED STRUCTURE - A terahertz interaction circuit is provided. The terahertz interaction circuit includes a waveguide and an electron beam tunnel. The waveguide has a folded shape and in which an electromagnetic wave propagates. The electron beam tunnel is formed to penetrate through the waveguide. An electron beam passes through the electron beam tunnel. The waveguide includes a ridge portion in which a portion of a surface of the waveguide protrudes into the waveguide. | 2012-04-05 |
20120081004 | Light emitting diode system - An LED lighting device comprising a plurality of light-emitting diodes (LED) and a power supply that receives alternating-current (AC) power from an input node and provides rectified direct-current (DC) power to the LEDs. The LED lighting device further comprises a capacitive power-factor compensation means and a bridge rectifier, wherein the capacitive power-factor compensation means is electrically downstream from the input node and electrically upstream from the bridge rectifier, and wherein the bridge rectifier is electrically downstream from the capacitive power-factor compensator means and electrically upstream from the LEDs; and a heat sink that contains said power supply, wherein said heat sink comprises a plurality of carriers, on which the LEDs are mounted. The LED lighting device does not include an electronic module that performs digital computation of software. | 2012-04-05 |
20120081005 | LUMINAIRE - A luminaire is provided, which includes a first light source for providing an illumination light and a second light source passing through at least one image pattern for providing a patterned light. The first light source and the second light source are coupled to a driving circuit and covered by a lamp cover. The driving circuit is used to selectively drive at least one of the first light source and the second light source for providing the illumination light and/or the patterned light. A user may turn on or switch different patterns by touching a casing of the luminaire. | 2012-04-05 |
20120081006 | DEVICE FOR GENERATING PLASMA AND FOR DIRECTING AN FLOW OF ELECTRONS TOWARDS A TARGET - Various embodiments include a device for generating plasma and for directing an flow of electrons towards a specific target; the device comprises a hollow cathode; a main electrode at least partially placed inside the cathode; a resistor, electrically earthing the main electrode; a substantially dielectric tubular element extending through a wall of the cathode; a ring-shaped anode placed around the tubular element and earthed; and an activation group which is electrically connected to the cathode and is able to reduce the electric potential of the cathode of at least 8 kV in about 10 ns. | 2012-04-05 |
20120081007 | TEMPERATURE CONTROLLING SYSTEM FOR LED MODULE - A temperature controlling system for a LED module includes at least one LED unit, at least one fan, at least one temperature sensor and a controlling device. The controlling device generates a driving signal for controlling the rotating speed of the fan based on a temperature detection signal transmitted from the temperature sensor, so that the fan can generate a compulsive airflow for dissipating the heat generated by the LED unit. According to the present invention, the working temperatures of the respective LED units can be kept the same, and a uniform heat-dissipating effect can be achieved. | 2012-04-05 |
20120081008 | CONTROL CIRCUIT MODULE OF LIGHT-EMITTING DIODE LAMP - The present invention relates to a control circuit module of light-emitting diode (LED) lamp, which comprises: a AC to DC element, for transferring mains AC power to DC power; a plurality of groups of LED; a plurality of switches, corresponding to the number of the groups of LED, for controlling to turn on/off the each group; a linear voltage regulator, for cutting the DC power from the AC to DC element to a plurality of voltage sections; a switch selector, for selecting to open/close the switches according to the voltage sections from the linear voltage regulator; a current selector, for capturing available current sections from the voltage sections of the linear voltage regulator; and a LED current setup device, for controlling the current sections to open/close the plurality of switches by a user according to the LED current setup device and the current selector. | 2012-04-05 |
20120081009 | Apparatus, Method and System for Providing AC Line Power to Lighting Devices - An apparatus, method and system are disclosed for providing AC line power to lighting devices such as light emitting diodes (“LEDs”). An exemplary apparatus comprises: a plurality of LEDs coupled in series to form a plurality of segments of LEDs; first and second current regulators; a current sensor; and a controller to monitor a current level through a series LED current path, and to provide for first or second segments of LEDs to be in or out of the series LED current path at different current levels. A voltage regulator is also utilized to provide a voltage during a zero-crossing interval of the AC voltage. In an exemplary embodiment, first and second segments of LEDs are both in the series LED current path regulated at a lower current level compared to when only the first segment of LEDs is in the series LED current path. | 2012-04-05 |
20120081010 | SYSTEM AND METHOD FOR COLOR CREATION AND MATCHING - Systems and methods for controlling an output of a luminaire. The luminaire uses stored spectral information for light sources within the luminaire to determine a coordinate for each light source within a color space. A desired output color is also converted to a coordinate within the color space. The distance between the desired output color coordinate and each of the coordinates corresponding to the light sources is calculated to select initial control values for the light sources. The initial control values for each light source are individually modified by a step size value, the total output of the luminaire is calculated and converted to a coordinate within the color space, and the distance between the total luminaire output coordinate and the desired color coordinate is calculated. The control values for the light sources are iteratively modified until the luminaire output coordinate is within a threshold value of the desired color output. | 2012-04-05 |
20120081011 | Software Control of LED Illumination Output for Improved Yield and Latitude - The present application discloses methods and systems for calibrating a scanning system. In one embodiment, the calibration method determines a dark level of at least one pixel, determines a maximum white level for at least one pixel and adjusts the current of an illumination source based upon an output of an analog to digital converter. In another embodiment, the scanning system has a circuit for dynamically adjusting the output of an illumination source. The circuit has a pulse width modulated signal generator for generating a pulse width modulated signal and a driver for receiving the pulse width modulated signal and causing current to the illumination source to be modulated based on the pulse width modulated signal. | 2012-04-05 |
20120081012 | COLOR MATCHING FOR DISPLAY SYSTEM FOR SHOPS - A color identifying display system having a lighting surface having an alterable apparent surface color, a color capture device to capture a color of an object placed within a detection area, and a processor. The lighting surface and the color capture device are coupled to the processor. The processor analyzes the captured color to determine a prominent color of the object and to control a color of the lighting surface based on the determined prominent color. The color of the lighting surface may be adjusted to match the prominent color, complement the prominent color, or be analogous to the prominent color. | 2012-04-05 |
20120081013 | Energy Conversion Device - According to one embodiment, an energy conversion device comprises a nuclear battery, a light source coupled to the nuclear battery and operable to receive electric energy from the nuclear battery and radiate electromagnetic energy, and a photocell operable to receive the radiated electromagnetic energy and convert the received electromagnetic energy into electric energy. The nuclear battery comprises a radioactive substance and a collector operable to receive particles emitted by the radioactive substance. | 2012-04-05 |
20120081014 | APPARATUS, METHOD, AND SYSTEM FOR LED FIXTURE TEMPERATURE MEASUREMENT, CONTROL, AND CALIBRATION - The present invention generally relates to the field of large area lighting, such as lighting for sport venues. More specifically, some embodiments of the present invention relate to controlling solid state illumination for various applications including sports lighting, architectural lighting, security lighting, parking, general area, interior, larger area and others. Embodiments according to aspects of the current invention monitor lighting circuits with regard to voltage and current, compare readings with stored models, characterize lighting circuits with regard to stored models for voltage and current, and control lighting circuits in accordance with desirable outcomes. | 2012-04-05 |
20120081015 | Method And Apparatus For Outputting Light In A Led-Based Lighting System - Light Emitting Diodes (LEDs) are increasingly used in illumination applications. To control multiple Light Emitting Diodes (LEDs), or any other controllable light source, this document introduces a single-wire multiple-LED power and control system. Specifically, individually controlled LED units are arranged in a series configuration that is driven by a control unit located at the head of the series. Each of the individually controlled LED units may comprise more than one LED that is also individually controllable. The head-end control unit provides both electrical power and control signals down a single wire to drive all of the LED units in the series in a manner that allows each LED unit to be controlled individually or in assigned groups. | 2012-04-05 |
20120081016 | LED DRIVER WITH ADAPTIVE DYNAMIC HEADROOM VOLTAGE CONTROL - A multi-channel LED driver includes a plurality of linear current regulators, each connected to a bottom of a string of series connected LEDs of a multi-channel LED that controls a bias current and the string of series connected LEDs responsive to an LED bias reference voltage. A dynamic headroom regulation voltage control circuit monitors the headroom regulation voltage at the bottom of each string of the series connected LEDs in the multi-channel LED and generates a reference voltage controlling each of the headroom regulation voltages responsive to the LED bias reference voltage. | 2012-04-05 |
20120081017 | LED STRING DRIVER WITH POWER FACTOR CORRECTOR AND CURRENT GOVERNOR - A solid state lighting controller arranged for use with a single stage power factor correction switched mode power supply, a light emitting diode (LED) string and a current sense element arranged to sense current through the LED string, the solid state lighting controller constituted of: a current governor in series with the LED string exhibiting a governor differential amplifier and a governor electronically controlled switch responsive to the output of the governor differential amplifier, the current governor arranged to limit current flow through the LED string responsive to a current limit reference; and a feedback circuit exhibiting an error amplifier, the feedback circuit arranged to feedback a signal to the power factor correction switched mode power supply controller whose value is a function of the difference between the current through the LED string sensed by the current sense element and a target current signal. | 2012-04-05 |
20120081018 | Digitally controlled current regulator for high power solid state lighting - An exemplary apparatus embodiment provides for controlling current supplied to solid state lighting, such as light emitting diodes. An exemplary apparatus comprises a memory adapted to store a plurality of current parameters; and a control circuit adapted to modulate an energizing cycle time period for providing a substantially constant DC average current to the solid state lighting in response to a selected current parameter of the plurality of current parameters. In an exemplary embodiment, the control circuit modulates a current provided to the solid state lighting in response to a predetermined minimum current level (I | 2012-04-05 |
20120081019 | Fluorescent lamp circuit capable of being repaired and repeatedly used - The present invention is to provide a fluorescent lamp circuit capable of being easily repaired and repeatedly used even when one of filaments in a fluorescent light tube breaks because of age or defects, which will cause an electric arc between disconnected portions of the broken filament and generate a high resonant voltage and current in the resonant circuit. As soon as the resonant current flowing through a resonant capacitor exceeds an allowable current value of a circuit breaking element, the resonant current causes the circuit breaking element to form an open circuit, thereby promptly stopping the operation of the resonant circuit to prevent all the circuits and components in the fluorescent lamp circuit (except for the circuit breaking element) and plastic components that support the fluorescent light tube from burning which may otherwise result from an undue power demand of the resonant circuit and high heat generated by the electric arc. | 2012-04-05 |
20120081020 | APPARATUS AND METHOD FOR DRIVING FLUORESCENT LAMP - An apparatus and a method for driving a fluorescent lamp are provided. The apparatus submitted by the present invention includes a power switching circuit, an LC resonator and an automatic frequency tracing circuit. The power switching circuit is coupled between an input voltage and a ground potential, and is used for switching and outputting the input voltage and the ground potential in response to a ramp signal and a comparison voltage so as to generate a square signal. The LC resonator is used for receiving and converting the square signal to generate a sinusoidal driving signal for driving the fluorescent lamp. The automatic frequency tracing circuit is used for generating and adjusting the ramp signal according to a feedback signal related to the sinusoidal driving signal, so as to make a frequency of the sinusoidal driving signal automatically following a resonant frequency of the LC resonator. | 2012-04-05 |
20120081021 | DRIVING CIRCUIT FOR AND SEMICONDUCTOR DEVICE FOR DRIVING LASER DIODE - A driving circuit supplies a suppression current (I | 2012-04-05 |
20120081022 | APPARATUS AND METHODS FOR SUPPLYING POWER - A switched capacitor array having a plurality of capacitors arranged in a plurality of branches having different numbers of capacitors, and a plurality of switches connected to selectively couple the capacitors across the input or the output may be used for powering a variety of loads. A switched LED array may be dynamically configured based on a voltage supplied thereto, which may be supplied by a switched capacitor array. A lighting apparatus may be provided with first and second blocks, each block comprising a switched capacitor array, a switched LED array, and a control system. | 2012-04-05 |
20120081023 | Power Conversion and Control Systems and Methods for Solid-State Lighting - A solid-state lighting system comprises a plurality of light-emitting devices (e.g., light-emitting diodes) and an alternating current to direct current (AC-DC) converter that converts AC power to DC power for powering the plurality of light-emitting devices. The AC-DC converter is configured to perform AC-DC conversion directly, without the need for or use of a bridge rectifier or step-down transformer. According to one aspect of the invention, the light-emitting devices of the solid-state lighting system are autonomous and individually powered by a plurality of DC power supplies generated from the DC power produced by the AC-DC converter. According to another aspect, a plurality of phase-offset dimmer control signals are generated based on waveform distortions in a dimming signal produced by a conventional dimmer switch. The phase-offset dimmer control signals are used to individually control the dimming of the light-emitting devices. | 2012-04-05 |
20120081024 | UTILITY CONTROL SYSTEM AND METHOD - Embodiments of the present invention provide for the control of a powered utility. A circuit board, an onboard controller located on the circuit board, and a daughterboard connector also located on the circuit board are utilized. The onboard controller is configured to provide a first level of control functionality to the system. The first level of control functionality includes the ability to transfer the powered utility between an operating state and an off state. The daughterboard connector is configured to accept a daughterboard, and that daughterboard is configured to increase the control functionality of the system above the first level of control functionality to a second level of control functionality. | 2012-04-05 |
20120081025 | Power Conversion and Control Systems and Methods for Solid-State Lighting - A solid-state lighting system comprises a plurality of light-emitting devices (e.g., light-emitting diodes) and an alternating current to direct current (AC-DC) converter that converts AC power to DC power for powering the plurality of light-emitting devices. The AC-DC converter is configured to perform AC-DC conversion directly, without the need for or use of a bridge rectifier or step-down transformer. According to one aspect of the invention, the light-emitting devices of the solid-state lighting system are autonomous and individually powered by a plurality of DC power supplies generated from the DC power produced by the AC-DC converter. According to another aspect, a plurality of phase-offset dimmer control signals are generated based on waveform distortions in a dimming signal produced by a conventional dimmer switch. The phase-offset dimmer control signals are used to individually control the dimming of the light-emitting devices. | 2012-04-05 |
20120081026 | Fixed-time, fixed-frequency, preheat-type ballast circuit for fluorescent light tube - The present invention is to provide a ballast circuit, which includes a preheat circuit configured to perform a fixed-time, fixed-frequency preheating process on filaments at both ends of a fluorescent light tube before it is lit. While the filaments are being preheated, a power driving circuit generates an output signal whose frequency is far higher than resonant frequency of a resonant circuit, and controls the preheat circuit for enabling a filament transformer and a high-frequency coupling capacitor in the preheat circuit to couple the voltage of the output signal to the filaments and thereby preheat the filaments, but not light up the light tube. When the preheat period is up, the power driving circuit stops the preheating process and changes the frequency of the output signal to a level close to the resonant frequency, thereby oscillating the resonant circuit and generating a high voltage enough for lighting the light tube. | 2012-04-05 |
20120081027 | Full Wave Current Sense Rectifier - A current sense rectifier circuit comprises an assembly input terminal for receiving a current input signal having an alternating current (AC) waveform. A negative half-wave circuit generates a first input signal representative of negative portions of the current input signal. A positive half-wave circuit generates a second input signal representative of positive portions of the current input signal. The negative and positive half-wave circuits each include a single diode and a resistance. A closed-loop amplifier has an inverting input terminal connected to the negative half-wave circuit, and a non-inverting input terminal connected to the positive half-wave circuit. The closed-loop amplifier inverts the first input signal and provides a DC voltage output signal via an output terminal that is a function of the inverted first input signal and the second input signal. An assembly output terminal is connected to the output terminal to receive the DC voltage output signal therefrom. | 2012-04-05 |
20120081028 | Integrated Light Fixture and Night Light - A light fixture assembly having a plurality of sockets to receive a plurality of electrically powered sources of illumination, and a plurality of receptacles to receive a plurality of LED lights, the assembly including a housing. The plurality of receptacles are mounted on the fixture housing and a logic board is mounted in the housing, the logic board being electrically connected to a switch, and the switch is electrically connected to a source of electrical power. Separate electrical connections extend between the logic board and the sockets, and between the logic board and a voltage reduction device. The voltage reduction device is electrically connected to the receptacle to provide a lower voltage to the LED receptacles compared to the voltage of the electric power supplied to the light bulb. The switch is operable between off and on positions; and the logic board activates and deactivates the electrical energy provided to the sockets and to the LED receptacles upon operation of the switch. | 2012-04-05 |
20120081029 | Average Output Current Estimation Using Primary-Side Sensing - In one embodiment, an apparatus includes a transformer comprising a primary side and a secondary side. A switch is coupled to the primary side. A control signal circuit is configured to: sample a first current on the primary side of the transformer; estimate a second current value on the secondary side of the transformer using the sampling of the first current on the primary side and a turn ratio of the transformer; and output a signal to control a turn on time for the switch. | 2012-04-05 |
20120081030 | LIGHTING CONTROL DEVICE - A lighting control device for controlling one or more lighting parameters of each of one or more light sources is disclosed. The lighting control device comprises at least a first user interaction element, an element appearance control unit, a light setting control unit, and a memory for saving at least a first light setting, the first light setting comprising values of the one or more lighting parameters. The light setting control unit is adapted to set the lighting parameters according to the first light setting in response to an input via the first user interaction element. The element appearance control unit is adapted to set a first appearance associated with the first user interaction element based on at least one of the lighting parameters of the first light setting. Corresponding system, use, methods and computer program product are also disclosed. | 2012-04-05 |
20120081031 | FIELD EQUIPMENT PHOTOELECTRIC SENSING SENSITIVITY ADJUSTMENT - Provided is a photoelectric sensing sensitivity adjusting device including: an LED for emitting light by being supplied with energy (current or voltage); a regulator for LED driving for supplying the energy to the LED; a light receiving device for receiving the light emitted from the LED; a digital potentiometer for controlling increase or decrease of the energy to be supplied to the LED; a CPU for digitally controlling, according to a control program, the increase or decrease of the energy to be supplied to the LED; and a photodetection portion for detecting an optical signal, converting the optical signal to an electrical signal, and outputting the electrical signal. | 2012-04-05 |
20120081032 | MECHANISMS FOR ANTI-FLICKERING - A circuit comprises a first switch, a second switch, a third switch, and a fourth switch. Each has a first end and a second end. The circuit also comprises a capacitive device having a first capacitive end and a second capacitive end, and a voltage source. A first node having a first voltage is coupled to the first fourth-switch end, to the first second-switch end, and to the first capacitive end. A second node having a second voltage is coupled to the voltage source, to the second fourth-switch end, and to the second third-switch end. A third node is coupled to the second second-switch end, and to the first first-switch end. The first switch and the second switch are controlled such that the first node and the voltage source selectively provide the second voltage. | 2012-04-05 |
20120081033 | WHITE LIGHT EMITTING DIODE - A white light emitting diode comprises a light emitting diode chip for emitting a blue light, a first wavelength conversion layer and a second wavelength conversion layer. The light emitting diode chip comprises a first lighting area and a second lighting area through which at least two currents flow, respectively. The first wavelength conversion layer is coated on the first lighting area and generates a first conversion light upon excitation by the blue light. A warm white light is generated by mixing the blue light and the first conversion light. The second wavelength conversion layer is coated on the second lighting area and generates a second conversion light upon excitation by the blue light. A cold white light is generated by mixing the blue light and the second conversion light. The amount of the currents can be controlled to modify the luminescence intensity of each light area, thus adjusting the color temperature of the white LED. | 2012-04-05 |
20120081034 | OLED DISPLAY WITH A CURRENT STABILIZING DEVICE AND ITS DRIVING METHOD - An OLED display with a current stabilizing device employs a voltage boosting and current stabilizing device which is coupled between the driving-voltage line of the data driver and the data-power-supply wires to produce an output voltage higher than the driving voltage by boosting the driving voltage of the data driver, and then to maintain the current of the OLEDs at a constant level by performing current limiting, so that the problem of the current-ununiformity caused uneven luminance of the conventional OLED display can be solved, and the possibility that the luminance of the OLED panel will decay in a short period of time is reduce. | 2012-04-05 |
20120081035 | Power Conversion and Control Systems and Methods for Solid-State Lighting - A solid-state lighting system comprises a plurality of light-emitting devices (e.g., light-emitting diodes) and an alternating current to direct current (AC-DC) converter that converts AC power to DC power for powering the plurality of light-emitting devices. The AC-DC converter is configured to perform AC-DC conversion directly, without the need for or use of a bridge rectifier or step-down transformer. According to one aspect of the invention, the light-emitting devices of the solid-state lighting system are autonomous and individually powered by a plurality of DC power supplies generated from the DC power produced by the AC-DC converter. According to another aspect, a plurality of phase-offset dimmer control signals are generated based on waveform distortions in a dimming signal produced by a conventional dimmer switch. The phase-offset dimmer control signals are used to individually control the dimming of the light-emitting devices. | 2012-04-05 |
20120081036 | AUTOMATIC DROPOUT PREVENTION IN LED DRIVERS - A system and method is provided for preventing a dropout of an LED current. In one embodiment of the present invention, the system includes a voltage source, a first circuit, a second circuit, a controller, and at least one LED. The first circuit receives a reference voltage from the voltage source, receives set-point current data from the controller, and uses the reference voltage and the set-point current data to produce a threshold voltage. The threshold voltage is then provided to the second circuit, where it is converted into an output current, which is drawn through the LED. The second circuit then compares the threshold voltage to an output voltage corresponding to the output current, and provides an output to the controller. The controller then uses the output to determine whether a dropout has occurred. If a dropout has occurred, then second set-point current data is provided to the first circuit. | 2012-04-05 |
20120081037 | CIRCUIT AND LIGHTING SYSTEM FOR DIMMING AN ILLUMINANT - The invention relates to a method and to a circuit arrangement for dimming an illuminant ( | 2012-04-05 |
20120081038 | DISPLAY PANEL DRIVING VOLTAGE SUPPLY APPARATUS AND METHOD - A display panel driving voltage supply apparatus and method is disclosed. Said supply apparatus comprises: a timing controller for providing a voltage control signal and a switch control signal; a level shifter, receiving the voltage control signal for selecting a first specified voltage to be transmitted on a first driving voltage supply line as well as selecting a second specified voltage to be transmitted on a second driving voltage supply line according to the voltage control signal; and a first switch, wherein the first and the second driving voltage supply lines are electrically connected with each other to charge share between the first and the second specified voltages when the first switch is turned on under the control of the switch control signal. Said supply apparatus is capable of solving the problem of high power consumption and thereby reducing the electricity consumption. | 2012-04-05 |
20120081039 | METHOD AND APPARATUS FOR A LED DRIVER WITH HIGH POWER FACTOR - A control circuit of a LED driver according to the present invention comprises an output circuit, an input circuit and an input-voltage detection circuit. The output circuit generates a switching signal to produce an output current for driving at least one LED in response to a feedback signal. The switching signal is coupled to switch a transformer. The input circuit samples an input signal for generating the feedback signal. The input signal is correlated to the output current of the LED driver. The input-voltage detection circuit generates an input-voltage signal in response to an input voltage of the LED driver. The input circuit will not sample the input signal when the input-voltage signal is lower than a threshold. The control circuit can eliminate the need of the input capacitor for improving the reliability of the LED driver. | 2012-04-05 |
20120081040 | LIGHT EMITTING DIODE DRIVING CIRCUIT - A light emitting diode driving circuit comprising a power supply circuit, a rectifier circuit, a light emitting diode load and a controlling circuit. The rectifier circuit is connected between the power supply circuit and one port of the light emitting diode load. The other port of the light emitting diode load is connected to ground through a transistor. of the controlling circuit. The power supply circuit, the rectifier circuit, the light emitting diode load are connected to the ground when the transistor is turned on and disconnected from the ground when the transistor is turned off. The controlling circuit further comprises a pulse generating unit which controls the turn on/off of the transistor. | 2012-04-05 |