07th week of 2009 patent applcation highlights part 18 |
Patent application number | Title | Published |
20090039746 | DRAWER ASSEMBLY - A drawer assembly including a drawer and a sliding guide rail system for slidably opening and closing the drawer within an article of furniture is provided. A support bracket for supporting the drawer is provided at each side of the drawer. The sliding guide rail system includes a pull-out rail disposed within each of the support brackets. One of the support brackets has a slot and the pull-out rail disposed within one of the brackets has a recess. A stabilizer arrangement for stabilizing the sliding movement of the drawer is also provided. The stabilizer arrangement includes a guide bracket and a lever. The guide bracket has a protrusion engageable within the support bracket slot. The guide bracket has a resilient grip portion that allows for the guide bracket protrusion to be adjustable laterally within the support bracket slot when the guide bracket is locked onto the support bracket. | 2009-02-12 |
20090039747 | Footwear storage device - A footwear storage device includes a housing member having a generally hollow interior portion. Such housing member is manufactured from a first predetermined material and has a first predetermined size and shape. At least one drawer type member manufactured from a second predetermined material and having a second predetermined size and shape is operably connected to such housing member at a predetermined location within such generally hollow interior portion. A supporting means is operably disposed within such at least one drawer member for supporting a plurality of predetermined items of footwear. A means having a first portion operably disposed on such drawer type member at a predetermined location thereon and a second mating portion operably disposed on such housing member at a predetermined location thereon enables such drawer type member to extend to a position outside of such interior portion and to retract to a position within such interior portion. | 2009-02-12 |
20090039748 | Positioning mechanism - The present invention provides a positioning mechanism for positioning an object in a frame having a guiding groove. The object has a plurality of protruding portions. The positioning mechanism includes a first guiding portion disposed on a surface of the frame, and a positioning element having a second guiding portion engaged with the first guiding portion. The positioning element moves in a direction intersecting the guiding groove, such that the protruding portions of the object engage with the guiding groove. The positioning mechanism of the present invention is simpler and easier to be assembled and disassembled than a conventional positioning mechanism. | 2009-02-12 |
20090039749 | Refrigerator Having a Compartment for Accomodating Articles that are to be Cooled - A refrigerator having an inner space enclosed by a heat-insulating housing and having at least one compartment for accommodating articles that are to be cooled. The compartment has a curved edge and is disposed in the inner space. A strip placed on the curved edge in the form of a decorative, protective or reinforcing element, maintains its curved shape due to its plastic core. | 2009-02-12 |
20090039750 | Adjusting rail - A door is provided for a built-in household appliance and an adjusting rail for holding a trim panel is arranged on the door. The adjusting rail includes a base panel arranged between the trim panel and the door, with that side facing the trim panel having a depression formed therein that extends transversely over the base panel. | 2009-02-12 |
20090039751 | Refrigerator and method for the operation thereof - A method for operating a refrigerator having two movably connected housing parts, a frame and a door which jointly delimit a heat-insulated interior, as well as a seal that is fastened to a first of the housing parts and contacts the other of the housing parts in an airtight manner in the closed position of both housing parts. The method includes a step in which the airtight contact between the seal and the second housing part is prevented for a specific period of time along a section of the seal while the sealing contact between the seal and the second housing part is subsequently restored along said section of the seal in a step. The invention also relates to a refrigerator for carrying out the method. | 2009-02-12 |
20090039752 | LIGHTING DEVICE AND LIGHTING SYSTEM FOR STIMULATING PLANT GROWTH - The invention relates to a lighting device for stimulating plant growth. The lighting device has a solid state light source, suitable for emitting light of at least one wavelength within a predetermined wavelength range. Furthermore, the solid state light source is adapted for connection to an electrical network. The solid state light source is in contact with a cooling medium. In an embodiment, this cooling medium has a temperature in a temperature range between −50 and 0° C. | 2009-02-12 |
20090039753 | MAGNETRON - A gap is provided between a cooling block | 2009-02-12 |
20090039754 | LOW VOLTAGE ELECTRON SOURCE WITH SELF ALIGNED GATE APERTURES, FABRICATION METHOD THEREOF, AND DEVICES USING THE ELECTRON SOURCE - A method of fabricating an electron source having a self-aligned gate aperture is disclosed. A substrate is deposited on a first conductive layer. Over the first conductive layer an emitter layer is deposited. The emitter layer includes one or a plurality of spaced-apart nano-structures and a solid surface with nano-structures protruding above the surface. An insulator is conformally deposited over the emitter layer surface and forms a post from each protruding nano-structure. A second conductive layer is deposited over the insulator and the second conductive layer and the insulator are removed from the nano-structures such that apertures are formed in the second conductive layer and at least the ends of the nano-structures are exposed at the centers of said apertures. | 2009-02-12 |
20090039755 | ELECTRON-EMITTING DEVICE AND IMAGE DISPLAY APPARATUS - An electron-emitting device, comprising:
| 2009-02-12 |
20090039756 | FIBER LIGHT SOURCE - A fiber light source includes an exciting light source to emit exciting light and an optical fiber to guide the exciting light. The optical fiber contains, in a portion in the longitudinal direction, phosphors that emit fluorescence in accordance with the application of exciting light. The optical fiber includes a high reflection film covering the outer surface of a portion through which fluorescence emitted from the phosphor travels. | 2009-02-12 |
20090039757 | Excimer Lamp - The present invention seeks to provide an excimer lamp enhanced in the radiation output of excimer rays, the excimer lamp having at least an optical radiation window provided on the exit side of radiation of rays and a plurality of excimer discharge plates electrodes opposed to one another and having a constitution in which excimer discharge gas present in discharge spaces formed in the said opposed electrodes causes a discharge to radiate excimer rays, said excimer discharge electrodes being flat-plate electrodes, a plurality of said discharge spaces being provided, each of which is between flat-plate electrodes, said optical radiation window being provided in parallel with discharge channels of said discharge spaces. | 2009-02-12 |
20090039758 | BONDING AGENTS FOR FLUORESCENT COLORING MATERIALS, PROCEDURE AND METHOD OF USE - An adhesive agent for fluorescent dyes for adhering a fluorescent layer on a substrate, wherein the adhesive agent contains or consists of a glass composition. | 2009-02-12 |
20090039759 | Phosphor for Display and Field Emission Display - Disclosed is a phosphor for displays which is characterized by being composed of a europium-activated thiogallate phosphor represented by the following chemical formula: SrGa | 2009-02-12 |
20090039760 | LIGHT EMITTING DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - Disclosed is a light emitting display device including a seal and a method of fabricating the same. The light emitting display device includes a first substrate composed of a pixel region and a non-pixel region disposed around the pixel region; a pad portion formed in the non-pixel region to supply a signal to the pixel region; a second substrate disposed to face the first substrate; and a seal provided between the first substrate and the second substrate and disposed to surround the pixel region. Here, the seal is disposed on a first side between the pixel region and the pad portion, on a second side facing the first side, and on an outer ring of third sides contacting both ends of the first side and the second side, and the seal disposed in the outer ring of the third sides is filled up to contour lines of the first substrate and the second substrate. | 2009-02-12 |
20090039761 | Image display apparatus - By making Nd concentration in the tunneling insulating film | 2009-02-12 |
20090039762 | WHITE LED DEVICE COMPRISING DUAL-MOLD AND MANUFACTURING METHOD FOR THE SAME - A conventional high-luminance white light emitting diode (LED) device has the disadvantage of it being difficult to achieve high luminance and excellent and uniform quality since emitted light is weaker in the red wavelength region than at yellow wavelengths. The present invention provides a high-luminance white LED device with improved color rendering and spectrum distribution, and a method of manufacturing the same. The white LED device according to one embodiment of the present invention is characterized by dual molds. The white LED device includes: an LED chip mounting member for mounting an LED chip; at least one blue LED chip or ultraviolet LED chip mounted on the LED chip mounting member; a first mold having a transparent epoxy resin and a first phosphor and sealing the blue or ultraviolet LED chip, the first phosphor dispersed in the transparent epoxy resin to convert light emitted from the blue or ultraviolet LED chip into first light having a first wavelength; and a second mold having a transparent epoxy resin and a second phosphor and formed on the first mold, the second phosphor dispersed in the transparent epoxy resin to convert light emitted from the blue or ultraviolet LED chip into second light having a second wavelength, the second light being white light obtained by combination of the emitted light with the first light. The white LED device having the dual molds can be a lamp-type LED device, an injection-molded housing package-type LED device, or a transfer-molded chip-type LED device. | 2009-02-12 |
20090039763 | ELECTROLUMINESCENT DEVICE - An electroluminescent device includes a first electrode layer, a phosphor layer on the first electrode layer, a layer with permanent accumulated charges on the phosphor layer, and a second electrode layer on the layer with permanent accumulated charges. By the addition of the layer with permanent accumulated charges, an external driving voltage applied to the luminescent device can be reduced. | 2009-02-12 |
20090039764 | Quantum Dot Light-Emitting Diode Comprising Inorganic Electron Transport Layer - Disclosed herein a quantum dot light-emitting device which has an inorganic electron transport layer. According to the device, an electron transport layer formed by an inorganic materials, thereby providing a high electron transport velocity or electron density and improving a light emitting efficiency. Further, interlayer resistance between electrode and organic-electron transporting layer or between quantum dot light-emitting layer and organic-electron transporting layer is prohibit, thus increasing a light emitting efficiency of diode. | 2009-02-12 |
20090039765 | LIGHT EMITTING POLYMER COMPOSITION AND POLYMER LIGHT EMITTING DEVICE - A light emitting polymer composition comprising a light emitting polymer and a compound selected from the following formulae (1a) to (1d): | 2009-02-12 |
20090039766 | POLYMER LIGHT-EMITTING DIODE AND A METHOD OF MANUFACTURING IT - A light-emitting diode ( | 2009-02-12 |
20090039767 | METAL COMPLEX COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME - Provided are an organic electroluminescence device which: can emit blue light having a short wavelength and a high color purity; and can be combined with any other light emitting compound to emit white light and a metal complex compound for realizing the device, and a material for an organic electroluminescence device. The metal complex is of a specific structure having a tridentate chelate ligand and an electron withdrawing group. The material for an organic electroluminescence device is formed of the metal complex compound. The organic electroluminescence device has an organic thin film layer formed of one or more layers including at least a light emitting layer, the organic thin film layer being interposed between a pair of electrodes. In the organic electroluminescence device, at least one layer of the organic thin film layer contains the metal complex compound, and emits light by applying a voltage between both the electrodes. | 2009-02-12 |
20090039768 | ORGANIC ELECTROLUMINESCENT DEVICE - An organic electroluminescent device comprising: a pair of electrodes; and at least one organic compound layer including a light emitting layer between the pair of electrodes, wherein the light emitting layer contains a host material and a light emitting material, and wherein the host material contains a metal complex having a tridentate or more ligand. | 2009-02-12 |
20090039769 | ORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY APPARATUS - An organic electroluminescent device for emitting red light is disclosed, including: an anode; a cathode; and an organic layer including a light emitting layer provided between the anode and the cathode, wherein the light-emitting layer contains a red light-emitting guest material and a host material composed of a polycyclic aromatic hydrocarbon compound having a skeleton with a 4 to 7 membered ring, and a photosensitizing layer containing a light-emitting guest material which generates blue light is provided adjacent to the light-emitting layer. | 2009-02-12 |
20090039770 | Organic light emitting device and method for manufacturing the same - Disclosed is an organic light emitting device and a method for manufacturing the same. The organic light emitting device includes a first electrode, one or more organic compound layers, and a second electrode. The first electrode includes a conductive layer and an n-type organic compound layer disposed on the conductive layer. A difference in energy between an LUMO energy level of the n-type organic compound layer of the first electrode and a Fermi energy level of the conductive layer of the first electrode is 4 eV or less. One of the organic compound layers interposed between the n-type organic compound layer of the first electrode and the second electrode is a p-type organic compound layer forming an NP junction along with the n-type organic compound layer of the first electrode. A difference in energy between the LUMO energy level of the n-type organic compound layer of the first electrode and an HOMO energy level of the p-type organic compound layer is 1 eV or less. One or more layers interposed between the conductive layer of the first electrode and the second electrode is n-doped or p-doped with an organic material or an inorganic material. | 2009-02-12 |
20090039771 | ORGANIC ELECTROLUMINESCENT ELEMENT MATERIAL, ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE AND LIGHTING DEVICE - This invention provides an organic EL element, which can control luminescence wavelength, exhibits high luminescence efficiency, and has a prolonged emission life, and a lighting equipment and a display device. They can be realized by an organic electroluminescent element material characterized by a metal complex having a structure represented by the following general formula (A) as a partial structure. | 2009-02-12 |
20090039772 | PATTERNING APPARATUS, ORGANIC ELECTROLUMINESCENCE ELEMENT, METHOD FOR MANUFACTURING SUCH ORGANIC ELECTROLUMINESCENCE ELEMENT, AND ORGANIC ELECTROLUMINESCENCE DISPLAY - A patterning apparatus for performing highly accurate patterning to substrates continuously transferred is provided. Furthermore, a method for manufacturing an organic electroluminescence element wherein such patterning apparatus is employed, an organic electroluminescence element and an organic electroluminescence display device obtained by using such manufacturing method are provided. | 2009-02-12 |
20090039773 | ORGANIC LIGHT EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME - An organic light emitting display apparatus including: a substrate; a thin film transistor formed on the substrate; a planarization layer formed on the substrate to cover the thin film transistor and comprising a closed-loop groove; a pixel electrode that contacts the thin film transistor and is formed on the planarization layer; a pixel defining layer formed to fill the closed-loop groove; a spacer formed on the planarization layer and disposed outside the pixel electrode; an organic light emitting layer formed on the pixel electrode; and an opposite electrode covering the organic light emitting layer. | 2009-02-12 |
20090039774 | ORGANIC ELECTROLUMINESCENCE ELEMENT AND DISPLAY DEVICE - An organic electroluminescence element includes a pair of electrodes composed of an anode and a cathode, at least one of which is transparent or semitransparent, and one or more organic compound layers disposed between the pair of electrodes, wherein at least one of the organic compound layers comprises at least one charge-transporting polyester consisting of repeating units containing, as a partial structure, at least one structure represented by the following formula (I-1). | 2009-02-12 |
20090039775 | CONDUCTIVE LAMINATE AND ORGANIC EL DEVICE - A conductive multilayer stack ( | 2009-02-12 |
20090039776 | ORGANOMETALLIC COMPLEX AND ORGANIC LIGHT-EMITTING ELEMENT USING SAME - An organometallic complex and an organic light-emitting element containing the complex which has a very high efficiency, a high luminance, and durability. The organic light-emitting element has an anode, a cathode, and a layer including an organic compound sandwiched between the anode and cathode. The layer containing the organic compound includes at least one organometallic complex represented by General Formula [I] below. | 2009-02-12 |
20090039777 | ORGANIC ELECTROLUMINESCENT DEVICE AND ELECTRONIC APPARATUS - An organic electroluminescent device includes a translucent first electrode, a translucent second electrode, a luminescent layer, a reflective layer, and a transflective layer. The luminescent layer is arranged between the first electrode and the second electrode. The reflective layer is arranged on an opposite side with respect to the luminescent layer with the first electrode arranged between the reflective layer and the luminescent layer. The reflective layer reflects light, which comes from the luminescent layer, toward the second electrode. The transflective layer is arranged in the same layer with the second electrode or arranged on an opposite side with respect to the luminescent layer with the second electrode arranged between the transflective layer and the luminescent layer. Where λ denotes a peak wavelength of light that is emitted through the second electrode, θ | 2009-02-12 |
20090039778 | SUBSTRATE FOR ORGANIC ELECTROLUMINESCENCE DEVICE AND METHOD OF PRODUCING THE SAME - Provided is a substrate for an organic electroluminescence device having the following characteristics: occurrence of withdrawal of an organic electroluminescence material can be suppressed, and, even when the withdrawal occurs owing to, for example, impurities on the substrate, such a problem that stop of film formation for one entire line can be suppressed, and hence yields can be improved. The substrate for an organic electroluminescence device including at least pixel electrodes and stripe-shaped banks has projections between the stripe-shaped banks. | 2009-02-12 |
20090039779 | Phosphorescent light-emitting device with doped iridium-complex - A phosphorescent OLED uses a phosphorescent dopant in the emissive layer, the dopant includes a metal complex containing a plurality of moieties linking to a transition metal ion. One or more of the moieties contain a ligand with a C-SP | 2009-02-12 |
20090039780 | Display device and manufacturing method thereof - A display device of present invention includes an insulating substrate, an array of display elements on the insulating substrate, a cover substrate opposing to the insulating substrate, a sealant formed outside the array of display elements, and a protection film formed on the cover substrate and covering the array of display elements. | 2009-02-12 |
20090039781 | Electrode paste for plasma display panel and black bus electrode for plasma display panel - Described is an electrode paste for plasma display panel, which has a black pigment, a glass frit, an organic binder and a solvent, wherein the black pigment contains cobalt oxide (Co | 2009-02-12 |
20090039782 | PLASMA DISPLAY PANEL - A plasma display panel having a structure for reducing manufacturing costs and the failure rate of terminal portions of discharge electrodes. The PDP includes: a substrate and a barrier rib structure configuring a plurality of discharge cells. Discharge electrodes include discharge portions, terminal portions, and connection portions connecting the discharge portions with the terminal portions. A sealing member seals the discharge cells. A frit seals the substrate and the sealing member. At least one frit guide restricts the spreading of the frit. A phosphor layer is inside each of the discharge cells. A discharge gas is sealed in the discharge cells. | 2009-02-12 |
20090039783 | DISPLAY PANEL - A display panel including a first substrate; a second substrate separated from the first substrate; a barrier rib structure disposed between the first and second substrates defining a plurality of discharge cells; a plurality of first electrodes extending in a first direction, the first electrodes in the barrier rib structure; a plurality of second electrodes separated from the first electrodes in a second direction from the first substrate towards the second substrate, the second electrodes in the barrier rib structure; a plurality of third electrodes extending in a third direction crossing the first direction, the third electrodes on a surface of the first substrate facing the discharge cells; and a plurality of phosphor layers on surfaces of the third electrodes facing the discharge cells. | 2009-02-12 |
20090039784 | Metal Halide Lamp - The invention relates to a metal halide lamp comprising a ceramic discharge vessel ( | 2009-02-12 |
20090039785 | Discharge lamp - A discharge lamp comprises a discharge container in which a sealing tube is connected to each end of an arc tube, electrodes arranged inside the arc tube, a glass member provided in the sealing tube, a metallic foil provided on an outer circumference face of the glass member, an external lead which is electrically connected to the metallic foil and which is inserted in a through hole of an external quartz tube, a low melting point glass which is formed in a gap between an inner circumference face of the through hole of the external quartz glass tube and an external circumference face of the external lead, wherein a concave portion is formed at an outer end of the through hole. | 2009-02-12 |
20090039786 | COMPACT INCANDESCENT LAMP WITH INTEGRATED REFLECTOR - The invention relates to a compact incandescent lamp with an integrated reflector, comprising at least a lamp bulb, on one part of the surface of which the reflector is applied as a reflective layer and another part thereof is a light output window, an incandescent element, which is arranged in a defined way in the lamp bulb and is positioned in a defined way with respect to the reflective layer, wherein at least the part of the lamp bulb which carries the reflective layer is non-axisymmetric and/or a part of the light output window is asymmetrically shaped, so that the visible light which the lamp can generate illuminates a region of space non-axisymmetrically. | 2009-02-12 |
20090039787 | Power supply and plasma display including the same - A power supply including a transformer primary coil coupled to an input power source and a secondary coil coupled to an output terminal, a first switch coupled to the primary coil of the transformer, a duty cycle of the first switch controlling a voltage of the output terminal, first and second resistors coupled to the output terminal in series, a third resistor having a first terminal coupled to a node common to the output terminal and the first resistor, a second switch having a first terminal coupled to a second terminal of the third resistor and having a second terminal coupled to a node common to the first and second resistors, the second switch controlled based on an accumulated driving time, and a switching controller configured to receive a feedback voltage varying according to an on/off of the second switch, and configured to control the duty cycle. | 2009-02-12 |
20090039788 | LIGHT UNIT WITH INTERNAL BACK-UP POWER SUPPLY, COMMUNICATIONS AND DISPLAY - A light unit that includes an internal power supply that may be used in the event of an external power failure to provide power to the light unit. In one aspect, the present disclosure provides a lighting apparatus, comprising (a) a power input configured to receive external power from an external power source; (b) a solid state light element that is interconnected to the power input; and (c) a back-up power source that is interconnected to the solid state light element and the power input and that provides power to the solid state light element when the light element is not provided with power from the power input. | 2009-02-12 |
20090039789 | Cathode assembly and method for pulsed plasma generation - A cathode assembly and a method for generation of pulsed plasma are disclosed. The cathode assembly comprises a cathode holder connected to multiple longitudinally aligned cathodes, preferably of the same diameter, and different lengths. The method is characterized by forming an electric arc between the cathodes in the assembly and an anode by passing DC current of a predetermined magnitude. Once the arc is established the current is reduced to the magnitude sufficient to sustain an electric arc, or a slightly larger magnitude, thereby reducing the area of arc attachment to a single cathode. Once the area of attachment has been reduced, the current is raised to the operational level of the pulse, while the area of attachment does not increase significantly. | 2009-02-12 |
20090039790 | Pulsed plasma device and method for generating pulsed plasma - A device and a method for generating a truly pulsed plasma flow are disclosed. The device includes a cathode assembly comprising a cathode and a cathode holder, an anode, and two or more intermediate electrodes, the anode and the intermediate electrodes forming a plasma channel expanding toward the anode. The intermediate electrode closest to the cathode may form a plasma chamber around the cathode tip. An extension nozzle forming an extension channel having a tubular insulator along at least a portion of its interior surface is affixed to the anode end of the device. | 2009-02-12 |
20090039791 | Entryway lighting system - A disclosed entryway lighting system generally includes (a) a door assembly comprising a frame; (b) one or more high-intensity light fixtures mounted within the frame; (c) a power supply electrically connected in a circuit to the light fixtures; (d) a temperature sensor; and, (e) an electrical switch coupled to the temperature sensor and electrically connected to the circuit, the electrical switch having a cut-off temperature above which the light fixtures are turned off. The lighting system improves the visibility, aesthetic appearance, and security of a door mounted in the door assembly. The combination of the temperature sensor and the electrical switch provides an element of safety against excess heat generation and build-up that can result from the use of high-intensity lights. | 2009-02-12 |
20090039792 | PLASMA DISPLAY DEVICE AND DRIVING METHOD THEREOF - A plasma display device includes a plasma display panel having a scan driver including a falling reset signal/scan low signal generating circuit that includes: a first switch coupled to a scan electrode, a second switch coupled in series with the first switch and coupled to a scan low voltage source having a scan low voltage, a first driving circuit having an output terminal coupled to a control terminal of the first switch and a ground terminal coupled to the first and second switches, a second driving circuit having an output terminal coupled to a control terminal of the second switch and a ground terminal coupled to the second switch and the scan low voltage source, a control Zener diode between the control terminals of the first and second switches, and a control resistor between the control terminal of the second switch and the scan low voltage source. | 2009-02-12 |
20090039793 | Compact fluorescent lamp - A switchable compact fluorescent lamp with an L.E.D. added to the center of the top of the compact fluorescent lamp plastic electronic encasement housing. The L.E.D. can be switched on with the fluorescent on or switched to be on by itself with the fluorescent off. The lamp can also be switched to a battery and or capacitor power backup for the L.E.D. when the power goes off. | 2009-02-12 |
20090039794 | MINIATURE LIGHT BULB FOR RANDOM HIGH-LOW TWINKLE IN SERIES-WIRED LIGHT STRING - A flasher bulb including a thermal shorting element that alternately shorts and opens only a portion of the bulb filament, thus causing the flasher bulb to produce an alternating high-low illumination. When a plurality of such flasher bulbs are placed in the sockets of a series-wired light string, they cause the light string to exhibit a random high-low twinkle. | 2009-02-12 |
20090039795 | DISCHARGE LAMP LIGHTING APPARATUS - A discharge lamp lighting apparatus includes a plurality of discharge lamps | 2009-02-12 |
20090039796 | POWER SUPPLY FOR AN LCD DISPLAY - A power supply system is provided for a multiple lamp LCD panel. In one aspect, the power supply includes a plurality of transformers for driving a plurality of respective CCFLs. The primary sides of each transformer are coupled in series to thereby reduce the stress on each transformer. For LCD panels that include longer CCFLs, a power supply is provided that includes a plurality of transformers for driving a plurality of respective CCFLs. The primary sides of each transformer are coupled in series and each lamp is coupled to two secondary sides of the transformers, thereby reducing the problems associated with longer CCFL tubes. In any of the embodiments, the power supply can be adapted to convert a high voltage DC signal to high voltage AC used to power the lamps. | 2009-02-12 |
20090039797 | Process and system of power saving lighting - A process and system of lighting with green energy source and intelligent power management, which saves energy consuming and limits pollution. The system is using solar power, green battery, and LED which are clean, long life; save, and energy saving. A microcontroller coordinates devices and sensors to optimize the operation of the system to generate illumination. The process includes the steps of sensing the environment, selecting power source, determining the energy output and driving the light device in order to most efficiently using energy and generate sufficient light for different purposes. | 2009-02-12 |
20090039798 | Pulsed igniting device comprising a piezoelectric transformer for a high-pressure discharge lamp - A device for igniting the gas discharge in a high-pressure discharge lamp (La). The igniting device is embodied as a pulsed igniting device (C, FS, Tr | 2009-02-12 |
20090039799 | BALLASTED LAMP SOCKET FOR A COMPACT FLUORESCENT LAMP - A ballasted lamp socket for a gas discharge lamp, such as a compact fluorescent lamp, is adapted to replace an Edison screw-in lamp socket in a ceiling mounted light fixture, or a table or floor lamp. The ballasted lamp socket comprises a lamp-receiving portion adapted to be coupled to the gas discharge lamp, an enclosure mechanically coupled to the lamp-receiving portion, a dimming ballast circuit electrically coupled to the lamp-receiving portion and housed within the enclosure, and first and second electrical connections. The ballast portion is adapted to receive an AC line voltage and to generate a high-frequency AC voltage for driving the gas discharge lamp and controlling the light intensity of the gas discharge lamp between a high-end intensity and a low-end intensity. The first and second electrical connections are operable to receive the AC line voltage and to provide the AC line voltage to the ballast circuit. | 2009-02-12 |
20090039800 | AC POWER SUPPLY SYSTEM FOR BALANCED ENERGIZATION OF A PLURALITY OF LOADS - A gas-discharge lamp igniter is disclosed which has a group of gas-discharge lamps, such as those for LCD backlighting, connected in parallel with one another between the pair of outputs of an AC power supply. Provided one for each lamp to be energized, current-balancing transformers have their secondary windings serially interconnected. The lamps are connected to one of the pair of outputs of the AC power supply via the respective primary windings of the current-balancing transformers and the serial connection of the secondary windings thereof. | 2009-02-12 |
20090039801 | Backlight control circuit - An exemplary backlight control circuit for changing a brightness of a light source includes a coarse adjusting circuit and a fine adjusting circuit. The coarse adjusting circuit is configured to coarsely adjust a DC voltage according to one received coarse adjusting signal. The fine adjusting circuit is configured to finely adjust the DC voltage according to one received fine adjusting signal. A change of the DC voltage generated by the coarse adjusting circuit is greater than another change of the DC voltage generated by the fine adjusting circuit. | 2009-02-12 |
20090039802 | Backlight control circuit - An exemplary backlight control circuit includes a pulse width modulation integrated circuit (PWM IC) having a power input terminal, a power source capable of outputting an operation voltage, and a switching circuit connected between the power source and the PWM IC to control if the operation voltage is provided to the power input terminal. | 2009-02-12 |
20090039803 | OUTER JACKET LEAK DETECTION METHOD AND BALLAST IMPLEMENTING THE METHOD - A method of detecting a leak in an outer jacket of a metal halide lamp having an arc tube inside the outer jacket and operated by a ballast, where the ballast monitors an electrical characteristic of the lamp during start and detects a leak in the outer jacket when the electrical characteristic deviates from that of a corresponding metal halide lamp whose outer jacket does not have a leak. The electrical characteristic is one of six markers, namely (1) V′(E) at a predetermined E, where V′(E) is a derivative of lamp voltage V as a function of cumulative energy E delivered to the ballast since ignition, (2) a value of E at which V′(E) reaches a maximum, (3) V at a predetermined E, (4) a local maximum of V′(E) up to a predetermined E, (5) a global maximum of V′(E), and (6) E required to achieve a predetermined V. | 2009-02-12 |
20090039804 | Voltage Division Resistor for Acceleration Tubes, Acceleration Tube, and Accelerator - To provide a voltage division resistor for acceleration tube, an acceleration tube, and an accelerator capable of reducing the cost of the acceleration tube and enhancing the operation efficiency. [MEANS FOR SOLVING PROBLEMS] An acceleration tube ( | 2009-02-12 |
20090039805 | CHANGEOVER DEVICE OF PULL CORD CONTROL AND WIRELESS REMOTE CONTROL FOR A DC BRUSHLESS-MOTOR CEILING FAN - A change-over device of pull cord control and wireless remote control for a DC brushless-motor ceiling fan is to have a driver installed in a ceiling fan basic body, and the driver has a detecting unit for detecting whether or not a connector positioned in a hanging bell is connected with a wireless control switch unit so as to control the blades of the DC brushless-motor ceiling fan to rotate by pull cord control or by wireless remote control. Further, the connector is installed inside the hanging bell; therefore, when the DC brushless-motor ceiling fan is to be additionally provided with a wireless control switch unit, it is convenient and safe in installation. | 2009-02-12 |
20090039806 | ULTRASONIC MOTOR DRIVING METHOD AND ULTRASONIC MOTOR - There is provided a method of driving an ultrasonic motor configured so that two alternating voltages having a predetermined difference between respective phases and having predetermined drive frequencies are applied to a laminated piezoelectric body that has driving parts abutting a member to be driven, whereby simultaneous excitation of vertical and bending vibrations and hence excitation of an elliptical vibration occur in the piezoelectric body, and the driving parts receiving drive force from the elliptical vibration drive the driven member. The method includes performing wear particle removal drive at a fixed frequency during regular reciprocal drive so as to intermittently interrupt the regular drive, the regular drive being such that the driving parts repeatedly reciprocally drive the driven member within a predetermined range, and the wear particle removal drive being such that the driving parts reciprocally drive the driven member within a removal drive range wider than the predetermined range. | 2009-02-12 |
20090039807 | MOTOR CONTROLLER - In one aspect, a control circuit to control a speed of a motor includes a PWM oscillator configured to generate a PWM output signal having a duty cycle. The speed of the motor is controlled by the PWM output signal to be proportional to the duty cycle. The control circuit also includes a duty cycle control circuit responsive to a duty cycle selection signal and coupled to the PWM oscillator. The duty cycle control circuit is configured to compare a voltage reference and a supply voltage. The duty cycle control circuit controls the duty cycle of the PWM output signal to be inversely proportional to the supply voltage. | 2009-02-12 |
20090039808 | Motor Control Device And Compressor - A motor control device performing vector control for a motor that drives a load whose load torque varies periodically. The motor control device has: a motor speed deriving portion estimating or detecting a motor speed; a speed controller producing a specified torque current value such that the motor speed is made to follow a specified motor speed value fed from outside; a resonance filter producing a corrected torque current value by receiving a control value that varies with variations in the load torque and emphasizing a periodic variation component of the control value; a torque current corrector producing a specified superimposed torque current value by superimposing the corrected torque current value on the specified torque current value; and an adjusting portion adjusting, based on the specified superimposed torque current value, the phase of the corrected torque value by controlling the resonance filter. The vector control is performed according to the specified superimposed torque current value. | 2009-02-12 |
20090039809 | MOTOR CONTROL METHOD AND DEVICE - A control device includes a drive control unit that performs control for driving the electromagnetic coil, and a regeneration control unit that performs control for regenerating power from the electromagnetic coil. The drive control unit includes an excitation interval setting unit that sets an excitation interval and a non-excitation interval such that voltage is applied to the electromagnetic coil during the excitation interval while not applied to the electromagnetic coil during the non-excitation interval. The excitation interval has a symmetrical shape whose center corresponds to a π/2 phase point of the induced voltage waveform, and the non-excitation interval has a symmetrical shape whose center corresponds to the π phase point of the induced voltage waveform. The regeneration control unit includes a regeneration interval setting unit that sets a regeneration interval and a non-regeneration interval such that power is regenerated from the electromagnetic coil during the regeneration interval while not regenerated from the electromagnetic coil during the non-regeneration interval. The regeneration interval has a symmetrical shape whose center corresponds to the π/2 phase point of the induced voltage waveform, and the non-regeneration interval has a symmetrical shape whose center corresponds to the π phase point of the induced voltage waveform. | 2009-02-12 |
20090039810 | SYSTEM FOR SEAMLESS ESTIMATION OF SPEED AND/OR POSITION, INCLUDING STANDSTILL OF A PERMANENT MAGNET ROTOR OF AN ELECTRIC MOTOR - Procedure for determining the electrical drive speed (ω | 2009-02-12 |
20090039811 | Inhibitors of HSP90 - The invention relates to the use of 1H-indazol-6-ol compounds and salts thereof in the treatment of proliferative diseases and for the manufacture of pharmaceutical preparations for the treatment of said diseases, pharmaceutical preparations comprising 1H-indazol-6-ol compounds, novel 1H-indazol-6-ol compounds, and a process for the preparation of the novel 1H-indazol-6-ol compounds. | 2009-02-12 |
20090039812 | MOTOR DRIVE DEVICE - The present invention presents a motor drive device capable of detecting jamming accurately without falsely detecting jamming when a movable part contacts with other members. Jamming by a backrest is detected by judging whether the value of a period of one pulse P | 2009-02-12 |
20090039813 | METHOD AND APPARATUS FOR CONTROLLING ELECTRIC MOTOR - A method for controlling a motor current supplied to an electric motor by using an inverter device is provided. The inverter device includes an inverter circuit and a capacitor connected to an input of the inverter circuit. The method includes controlling the inverter circuit in such a manner as to supply an alternating electric current to the electric motor after the temperature of the capacitor reaches a temperature at which a maximum acceptable motor current value becomes greater than or equal to a value at which the torque necessary for starting the electric motor is produced. | 2009-02-12 |
20090039814 | Trapping Prevention Guard and Method for Controlling a Motor-Driven Adjusting Device - In order to reliably detect a jamming situation, in particular in a seat adjusting means, provision is made for a total loading exerted by the drive during a start phase to be determined and for this to be fixed as the basic loading. The existence or non-existence of a jamming situation is finally determined during a monitoring phase by comparing the gasinc loading and the total loading that varies during operation of the adjusting apparatus. | 2009-02-12 |
20090039815 | Power supply device for vehicles - A power supply device for vehicles, output units ( | 2009-02-12 |
20090039816 | Assembly Comprising a Three-Phase Machine and a Frequency Converter - A system is provided that furnishes expert procedural guidance based upon patient-specific data gained from surgical instruments incorporating sensors on the instrument's working surface, one or more reference sensors placed about the patient, sensors implanted before, during or after the procedure, the patient's personal medical history, and patient status monitoring equipment. Embodiments include a system having a surgical instrument with a sensor for generating a signal indicative of a property of a subject tissue of the patient, which signal is converted into a current dataset and stored. A processor compares the current dataset with other previously stored datasets, and uses the comparison to assess a physical condition of the subject tissue and/or to guide a procedure being performed on the tissue. | 2009-02-12 |
20090039817 | AUDIBLE NOISE REDUCTION FOR SINGLE CURRENT SHUNT PLATFORM - A method for reducing audible motor noise in a motor drive, wherein the motor drive includes a motor controller driving a PWM space vector modulator providing gating pulses to an inverter providing phase currents to the phase windings of the motor, and wherein phase currents of the motor are determined by taking samples of the DC link current in a DC link powering the inverter. The method comprises determining the speed of the motor and comparing the speed to a preset threshold, the preset threshold defining a speed at which audible noise is generated by the motor due to a minimum pulse constraint being imposed on the motor phase currents in order to reliably sample the DC link current to measure the phase current. If the speed is below the threshold, the DC link current in the DC link is sampled using a reduced number of current samples for a PWM cycle of the PWM space vector modulator to reduce audible motor noise. | 2009-02-12 |
20090039818 | DRIVE SYSTEM - A drive system for a shaft of a machine is described, which includes a control device, a drive controller and at least one input receiving input signals and at least one output supplying output signals. The drive controller includes drive controller firmware which stores linkable functional control elements. The control device enables both logical combination of individual inputs and/or outputs and/or internal states and parameterization and/or configuration of the functional control elements. The drive controller and the control device in the drive system are synchronized, with the drive controller operating as master. A drive system therefore has Programmed Logic Controller (PLC) functionality. | 2009-02-12 |
20090039819 | WALK AND ROLL ROBOT - A mobile robotic unit features a main body, a plurality of legs for supporting the main body on and moving the main body in forward and reverse directions about a base surface, and a drive assembly. According to an exemplary embodiment each leg includes a respective pivotal hip joint, a pivotal knee joint, and a wheeled foot adapted to roll along the base surface. Also according to an exemplary embodiments the drive assembly includes a motor operatively associated with the hip and knee joints and the wheeled foot for independently driving pivotal movement of the hip joint and the knee joint and rolling motion of the wheeled foot. The hip joint may include a ball-and-socket-type joint interconnecting top portion of the leg to the main body, such that the hip joint is adapted to pivot said leg in a direction transverse to a forward-and-reverse direction. | 2009-02-12 |
20090039820 | MOTOR CONTROLLER HAVING A MULTIFUNCTION PORT - In one aspect, a control circuit to control a speed of a motor includes a control logic circuit connected to a multifunction port. The control logic circuit is configured to receive a control signal provided at the multifunction port and to provide response signals based on the control signal to place the motor in at least two of a sleep mode, a brake mode and a pulse-width modulation (PWM) mode. The motor control circuit also includes an H-bridge circuit configured to control the motor based on the response signals. | 2009-02-12 |
20090039821 | STEP MOTOR DRIVING APPARATUS - A step motor driving apparatus includes a micro control unit (MCU), a pulse generator, a first step motor driver, a second step motor driver, and a communication port. The first step motor driver is configured for driving a first step motor and connected to the MCU. The second step motor driver is configured for driving a second step motor and connected to the MCU. The MCU is connected to the second step motor driver via the pulse generator. The pulse generator is configured to supply pulse signals to the second step motor driver. The communication port is connected to the MCU. The MCU receives a corresponding command from an external control apparatus via the communication port. The MCU selectively controls the first step motor driver to drive the first step motor or controls the second step motor driver to drive the second step motor according to the command. | 2009-02-12 |
20090039822 | Position detecting apparatus having electric motor and method for detecting position - A reference position detecting apparatus includes an electric motor and a motor control unit. The electric motor includes a plurality of first coils and a plurality of second coils. The electric motor further includes a rotor that rotates when at least one of the plurality of first coils and the plurality of second coils is supplied with electricity. The motor control unit controls electricity supplied to either one of the plurality of first coils and the plurality of second coils to rotate the rotor to a limit position in a movable range of an object. | 2009-02-12 |
20090039823 | Stepper Motor Control Apparatus - A stepper motor apparatus controls a stepper motor by taking a maximum response speed and maximum response acceleration of the stepper motor into account. | 2009-02-12 |
20090039824 | High power-density static-field ac conduction motor - An ac motor for high-torque drive has a transformer with a magnetic circuit with a central limb. Either the two ends or the two connected electrodes of the secondary winding of the transformer project at an angle to the longitudinal axis of the secondary winding; an armature rotor dielectrically bridges the two ends or the two connected electrodes, moving parallel to the longitudinal axis. The rotor forms two series-connected capacitors with the two ends or the two connected electrodes. An LC circuit is formed by the two capacitors in series to the total effective inductance of the power source, the electric transformer, the two ends or the connected electrodes and the armature. The impedance of the LC circuit is varied by the frequency of the power source supplying the primary winding of the transformer, in order to push required electric power from the power source to the series LC circuit. | 2009-02-12 |
20090039825 | ABSOLUTE POSITION SENSOR FOR FIELD-ORIENTED CONTROL OF AN INDUCTION MOTOR - Systems and methods are provided for an automotive drive system using an absolute position sensor for field-oriented control of an induction motor. An automotive drive system comprises an induction motor having a rotor, and a position sensor coupled to the induction motor. The position sensor is configured to sense an absolute angular position of the rotor. A processor may be coupled to the position sensor and configured to determine a relative angular position of the rotor based on a difference between the absolute angular position and an initial angular position obtained when the induction motor is started. A controller may be coupled to the induction motor and the processor and configured to provide field-oriented control of the induction motor based on the relative angular position of the rotor. | 2009-02-12 |
20090039826 | SOLAR ENERGY CHARGING/DISCHARGING SYSTEM AND CHARGING/DISCHARGING METHOD THEREOF - The invention discloses a solar energy charging/discharging system and a charging/discharging method thereof. The solar energy charging/discharging system according to the invention comprises a solar cell, a super-capacitor, and a switch. The solar cell is used for collecting solar energy and converting the solar energy into electrical energy. The super-capacitor is coupled to the solar cell. The super-capacitor and the solar cell are coupled to a load through the switch. The super-capacitor is selectively charged/discharged according to a threshold voltage. | 2009-02-12 |
20090039827 | Solar-Powered Charger With Heat-Dissipating Surface - A solar-powered charger includes a solar collector configured to generate electrical energy when exposed to light, a connector coupled to the solar collector to provide a pathway for discharging the electrical energy to an external device and a casing comprising a surface configured to dissipate heat. | 2009-02-12 |
20090039828 | WIRELESS CHARGING OF ELECTRONIC DEVICES - Wireless chargers are provided. The wireless chargers can simultaneously receive and transmit power wirelessly. The wireless chargers can include a rechargeable battery so that the wireless charges can be used portably to charge electronic devices. The wireless chargers can also be programmable so that a user can select a power-transmitting protocol that is particularly suited for the electronic device being charged. | 2009-02-12 |
20090039829 | MOBILE PHONE CHARGER - A charger includes a battery module, a boosting and charging circuit, a low voltage boosting circuit, and a charging interface. The battery module provides an operating voltage for the boosting and charging circuit and the low voltage boosting circuit. When the operating voltage is greater than a reference voltage of the boosting and charging circuit, the boosting and charging circuit module works and outputs a charging voltage to the charging interface. When the operating voltage is smaller than the reference voltage of the boosting and charging circuit but greater than a starting voltage of the low voltage boosting circuit, the low voltage boosting circuit works and boosts the operating voltage to the boosting and charging circuit, and then the boosting and charging circuit module works and outputs the charging voltage to the charging interface for the mobile phone. | 2009-02-12 |
20090039830 | EQUILIBRATED CHARGING METHOD FOR A LITHIUM-ION OR LITHIUM-POLYMER BATTERY - An equilibrated charging method for n cells of a lithium-ion or lithium-polymer battery, connected in series. The method is characterised in carrying out a continuous monitoring of the levels of charge of the different cells ( | 2009-02-12 |
20090039831 | Electrically powered vehicle - A first power storage unit is a battery assembly, and is divided into battery blocks of n (n is a natural number) in number each formed of several electric cells connected together in series. When a state allowing charging with an external power supply is attained, the ECU executes an operation of resetting an SOC of a first power storage unit. The ECU controls a corresponding converter to discharge the first power storage unit with a constant current, and sets reset values for battery blocks of n in number based on battery voltages and battery temperatures exhibited when any one of the battery voltages of the n battery blocks becomes lower than a reset voltage. The ECU resets the SOCs of the battery blocks of the first power storage unit to the respective reset values thus set. | 2009-02-12 |
20090039832 | Mems based battery monitoring technical field - A battery protection and monitoring system includes a plurality of MAFET (Mechanically Actuated Field Effect Transistor) switches, wherein each MAFET switch among the MAFET switches is capable of switching from an open switch condition to a closed switch condition or vice versa, such that the plurality of MAFET switches are connectable to a battery. Such a system further includes one or more transistors associated with and which communicate electrically with at least one MAFET switch among the MAFET switches. A PPTC (Polymeric Positive Temperature Coefficient) device is also associated with the transistors and the MAFET switches, such that the PPTC device, the MAFET switches and the transistors operate in association with one another and the open switch condition or the closed switch condition of the plurality of MAFET switches to identify, monitor and thus prevent at least one dangerous condition associated with the battery. | 2009-02-12 |
20090039833 | Battery pack and connection system thereof - In a battery pack ( | 2009-02-12 |
20090039834 | Voltage Control System and Vehicle Comprising Voltage Control System - This voltage control system includes a power supply, an accumulator device which is capable of accumulating and discharging electrical power, a voltage control device which is constituted so as, when the electrical power supplied from the power supply is insufficient, to supplement it by discharging electrical power from the accumulator device, so as to keep a system voltage a predetermined value, and a control device which, when it has been recognized that the amount of electrical power required by one electrical power consumption device which is included in the system has decreased, reduces the rate of increase of the system voltage by implementing supply of electrical power from the power supply to the accumulator device. | 2009-02-12 |
20090039835 | BATTERY SHORT CIRCUIT MONITORING - A system measures a voltage of a battery of a user device, measures a temperature and an acceleration of the battery if a decrease in battery voltage is measured, and determines whether the battery is functioning properly based on one or more of the measured voltage, temperature, or acceleration of the battery. | 2009-02-12 |
20090039836 | Apparatus for controlling power generated by on-vehicle generator on the basis of internal status of on-vehicle battery - An apparatus for controlling power generation of a generator mounted on a vehicle, the generator charging a on-vehicle battery, comprising a detecting device that detects information indicating the internal status of the battery that includes temperature of the battery, a power supply circuit that supplies power to the detecting device, a calculator for calculating the internal status of the battery using the information detected by the detecting device, a circuit board on which the calculator, the power supply circuit, and the detecting circuit are mounted and a controller that controls the power generation of the generator based on the internal status of the battery. The temperature sensing element is arranged on a bus bar that is electrically connected to the negative terminal of the battery, and the bus bar and the temperature sensing element are coupled thermally to each other. | 2009-02-12 |
20090039837 | CHARGING APPARATUS HAVING A SWITCHING ELEMENT FOR CONTROLLING CHARGING POWER - A charging device that may perform charging with larger current is provided. The charging device comprises a switching element for increasing or decreasing charging power, a PWM controlling circuit for intermittently turning the switching element on and off, a current detecting circuit for detecting current flowing through the switching element, and a correcting circuit for correcting output voltage of the current detecting circuit depending on the temperature of the switching element. The PWM controlling circuit has a limiter terminal for turning off the switching element when voltage equal to or above a predetermined value is input, and corrected voltage from the correcting circuit is input to the limiter terminal. | 2009-02-12 |
20090039838 | Device for controlling power generated in vehicle - A device for controlling vehicle power generation that controls duty cycle of an excitation winding in a vehicle power generator and controls an output voltage from the vehicle power generator to a predetermined value includes a power generation controlling circuit that, when the output voltage from the vehicle power generator is less than the predetermined value, gradually increases the value of a gradual excitation duty and gradually increases the excitation current, the gradual excitation duty being a limit value for increasing and decreasing an excitation drive duty intermittently controlling the electrification of the excitation winding, and in an opposite situation, gradually decreases a value of the excitation drive duty and gradually decreases the excitation current. The power generation controlling circuit changes the rate at which the value of the gradual excitation duty is decreased. | 2009-02-12 |
20090039839 | Fuel cell power supply device - A fuel cell power supply device capable of externally supplying electric power in a stable manner is provided. The fuel cell power supply device includes a fuel cell ( | 2009-02-12 |
20090039840 | REGULATOR AND HIGH VOLTAGE GENERATOR - A regulator included in a high voltage generator for supplying a high voltage to a semiconductor memory device is disclosed. The regulator includes a voltage dividing circuit configured to divide an output voltage of a charge pump, a comparing circuit configured to compare a reference voltage with a divided voltage by the voltage dividing circuit, a regulator driving circuit configured to couple selectively the voltage dividing circuit to a ground, and a high voltage discharging circuit configured to discharge the divided voltage applied to the comparing circuit when supply of a power supply voltage is stopped. | 2009-02-12 |
20090039841 | Controlling Switching Regulator for Maintaining High Efficiency for Wide Input Voltage Range - This disclosure relates to a voltage regulator system where duty cycle value of an input voltage is measured, where the input voltage is supplied to a regulator circuit that provides a regulated output voltage. Based on a calculated ideal duty cycle, which is derived from the measure duty cycle, a determination is made as to whether the regular circuit operational mode is to be changed to achieve greater efficiency. | 2009-02-12 |
20090039842 | DC-DC CONVERTER - The invention provides DC-DC converters comprising a load sensor, a variable Power MOS, and a Power MOS width controlling and driving device. The Power MOS width controlling and driving device is coupled between the load sensor and the variable Power MOS. The variable Power MOS comprises a plurality of PMOS transistors coupled in parallel and a plurality of NMOS transistors coupled in parallel. After the load sensor detects the load current of the DC-DC converter, the Power MOS width controlling and driving device conducts the PMOS and NMOS transistors according to the sensed load current to control the total size of the conduction paths that couple a transformed DC voltage output terminal to a source of an original DC voltage or ground. | 2009-02-12 |
20090039843 | SEMICONDUCTOR CIRCUIT AND SWITCHING POWER SUPPLY APPARATUS - To provide a power supply apparatus which realizes a high-speed response, a stable operation, and a low output ripple with low power consumption. The first stage switching regulator receives an input voltage and forms a first voltage. The second stage switching regulator receives the first voltage and forms a second voltage. The second stage switching regulator includes an N-phase (N is two or more) switching regulator, and the first voltage is set to be N times a target value of the second voltage. The input voltage is set to be higher than the first voltage. | 2009-02-12 |
20090039844 | POWER SUPPLY UNIT AND PORTABLE DEVICE - A power supply unit, adapted to provide a predetermined output voltage from its output circuit, compares a feedback voltage associated with the output voltage of the output circuit with a reference voltage so as to control the output circuit. The power supply unit is enabled and disabled in response to an externally supplied operation command signal. The reference voltage is generated by a reference voltage generation circuit, which is operable on the voltage of the operation command signal, and is controllably enabled when the voltage of the operation command signal exceeds a predetermined level, but otherwise disabled. Thus, the reference voltage is stabilized to improve the ripple rejection characteristic of the power supply unit without increasing its current consumption. | 2009-02-12 |
20090039845 | METHOD AND APPARATUS FOR POWER MANAGEMENT OF A LOW DROPOUT REGULATOR - A method of switching a low dropout regulator includes determining an actual active time of a power request from an electronic device; enabling the low dropout regulator in response to said power request at a time corresponding to a start of the actual active time of the power request for an active enabled time having a duration at least the same as the actual active time and long enough to sufficiently settle the output voltage of the low dropout regulator; and disabling the low dropout regulator. In embodiments, the active enabled time is prolonged beyond the actual active time of the power request for all or at least some power requests. An electronic device includes circuits for controlling the switching of a low dropout in the described manner. | 2009-02-12 |