40th week of 2009 patent applcation highlights part 23 |
Patent application number | Title | Published |
20090243437 | MULTILAYERED ACTUATORS HAVING INTERDIGITAL ELECTRODES - The invention relates to a method for producing a monolithic multilayered actuator comprising a stack of thin active piezoceramic films with applied metallic inner electrodes which reciprocally lead from the stack and are electrically connected in parallel using outer electrodes. | 2009-10-01 |
20090243438 | PIEZOELECTRIC MATERIAL AND PIEZOELECTRIC ELEMENT - A piezoelectric element includes a first electrode, a piezoelectric film disposed on the first electrode, and a second electrode disposed on the piezoelectric film. The piezoelectric film is composed of piezoelectric material that is lead free and formed by mixing 100(1−x)% of material A having a spontaneous polarization of 0.5 C/m2 or greater at 25° C. and 100 x % of material B having piezoelectric characteristics and a dielectric constant of 1000 or greater at 25° C., wherein (1−x)Tc(A)+xTc(B)≧300° C., where Tc(A) is the Curie temperature of the material A and Tc(B) is the Curie temperature of the material B. | 2009-10-01 |
20090243439 | PIEZOELECTRIC CERAMIC AND PIEZOELECTRIC ELEMENT EMPLOYING IT - A piezoelectric ceramic | 2009-10-01 |
20090243440 | PIEZOELECTRIC CERAMIC COMPOSITIONS AND PIEZOELECTRIC ELEMENTS - A piezoelectric ceramic composition includes a main component represented by general formula {(Pb | 2009-10-01 |
20090243441 | Piezoelectric Component - The invention relates to a piezoelectric multiple-layer component with a base body, which comprises a stack of piezoelectric layers ( | 2009-10-01 |
20090243442 | MULTILAYERED PIEZOELECTRIC ELEMENT AND METHOD OF MANUFACTURING THE SAME - In a multilayered piezoelectric element, a side insulating film is accurately formed even on a thin multilayered structure. The element includes: a multilayered structure having a step formed on a side surface of the multilayered structure such that an end of an internal electrode is located on a convex portion of either side surface; a side insulating film for covering the end of the internal electrode on the convex portion of the side surface; a first flat electrode formed on one principal surface of the multilayered structure; a second flat electrode formed on the other principal surface of the multilayered structure; a first side electrode formed on a first side surface of the multilayered structure and connected to a first group of electrodes; and a second side electrode formed on a second side surface of the multilayered structure and connected to a second group of electrodes. | 2009-10-01 |
20090243443 | Drive unit - A drive unit includes a rotary electric machine; an inverter used to control the rotary electric machine and a capacitor that smooths a power supply voltage of the inverter; and a case housing the rotary electric machine. A control equipment housing space structured by an inverter housing space portion that houses the inverter and a capacitor housing space portion that houses the capacitor is formed in the case on an outer side of the rotary electric machine in an axial center radial direction of the rotary electric machine. A refrigerant flow chamber through which a refrigerant flows is formed between the control equipment housing space and the rotary electric machine. A capacitor heat exchange fin that performs heat exchange between the capacitor housing space portion and the refrigerant is provided between the capacitor housing space portion and the refrigerant flow chamber. | 2009-10-01 |
20090243444 | STORAGE UNIT - A storage unit providing a storage space is disclosed. The storage unit comprises a base and a panel moveable relative to the base to expose and conceal a storage space a handle configured for at least vertical movement, at least one connector configured for at least vertical movement, and a member coupled by the connector to the handle through the panel and configured for at least horizontal movement. | 2009-10-01 |
20090243445 | Electronic Device With Modular Bezel, And Method Of Configurating Electronic Device With Modular Bezel - A modular bezel for an electronic device can include a front panel and a connection device. The connection device can be configured to connect the modular bezel to a front portion of the electronic device and be configured to be disposed in a plurality of locations on the front portion of the electronic device, such as receptors of the electronic device that are not occupied by an electronic component or are not configured to receive or be occupied by an electronic component. Thus, the electronic device can be configured in a variety of different ways using the modular bezel. | 2009-10-01 |
20090243446 | Housing of an Electrical Machine Comprising Cooling Channels Extending in a Housing Wall - The invention relates to a housing ( | 2009-10-01 |
20090243447 | Rotary Piece of Furniture - A rotary piece of furniture comprising a body ( | 2009-10-01 |
20090243448 | SYSTEM AND METHOD FOR DRIVING A DRAWER IN A REFRIGERATOR - A system and method for driving a drawer of a refrigerator and a refrigerator employing this system is provided. This system and method allows for the automatic opening and closing of multiple drawers of a refrigerator either sequentially or simultaneously. The system automatically closes a first drawer after a second drawer has been opened to reduce the loss of cooling air and to preserve freshness of items stored in the refrigerator. | 2009-10-01 |
20090243449 | DISPLAY FOR A CASKET SELECTION ROOM - A display for a casket selection room comprises a base, a first display portion mounted to the base, a plurality of casket portions representing a plurality of casket choices from which a customer may select mounted to the first display portion, a second display portion mounted to the first display portion, and a plurality of casket ornaments representing a plurality of ornament choices from which the customer may select mounted to the second display portion. | 2009-10-01 |
20090243450 | SLIDE RAIL ASSEMBLY - A slide rail assembly includes an outer slide rail having a certain length, a middle slide rail having a certain length and reciprocally slidably nested in the outer slide rail and an inner slide rail having a certain length and reciprocally slidably nested in the middle slide rail. When the inner slide rail is pushed to drive the middle slide rail to together get into the outer slide rail by a maximum travel, an inner end of the inner slide rail protrudes from an inner end of the middle slide rail and an inner end of the outer slide rail. Also, the inner end of the middle slide rail protrudes from the inner end of the outer slide rail. | 2009-10-01 |
20090243451 | Drawer pull-out guide - A pull-out guide for drawers comprises a carcass rail, a central rail mounted displaceably in relation to the latter, and a pull-out rail mounted displaceably in relation to the central rail. The movement of the central rail is synchronized by a control roller. The control roller with a hard body and a soft body is mounted on a spindle which is elliptical in cross section. | 2009-10-01 |
20090243452 | APPLIANCE - An appliance with a simple mechanism for mounting a decorative panel to an exterior surface. The mechanism simplifies the installation process associated with mounting the panel by removing the need for precise tolerances. The mechanism includes a plurality of adjustable mounting brackets and corresponding channel portions which permit an installer to adjust the panel with three degrees of freedom to align it relative to the surroundings, and subsequently secure the panel in place. The mechanism allows translation in substantially horizontal and vertical directions as well as rotation in a plane substantially parallel to the exterior surface of the appliance. In a preferred embodiment the mechanism also is also capable of supporting the panel while the adjustments are being performed. | 2009-10-01 |
20090243453 | GASKET AND REFRIGERATOR THEREWITH - The present invention relates to gaskets ( | 2009-10-01 |
20090243454 | REFRIGERATOR, SYSTEM AND METHOD FOR DRIVING A DRAWER OF THE REFRIGERATOR - A system and method for driving a drawer of a refrigerator and a refrigerator employing this system is provided. This system and method allows the drawer to substantially immediately and automatically stop when the drawer encounters an obstacle. This type of automatic control of the drawer may enhance the safe operation of the drawer, prevent injuries to users, and prevent overload and subsequent malfunction of a drive motor used to move the drawer. | 2009-10-01 |
20090243455 | Lamp - The invention relates to a lamp with a first light source generating white light, comprising at least one fluorescent lamp ( | 2009-10-01 |
20090243456 | FILAMENT LAMP - To provide a filament lamp having a plurality of filaments disposed in sequence in the axial direction of a light-emitting lamp tube which is configured so as not to shield emitted light from a center filament, internal leads for two filaments disposed proximate hermetically sealed parts at both ends are connected to metal foils in the same hermetically sealed part. | 2009-10-01 |
20090243457 | WHITE LIGHT EMITTING DIODE PACKAGE FOR INCANDESCENT COLOR - The present invention relates to a white light emitting diode (LED) package that includes a blue LED chip to emit blue light; a yellow phosphor excited by the blue light and emit yellow light, the yellow light to produce a primary white light in combination with the blue light; a red LED chip to emit red light, the red light to adjust the primary white light into secondary white light of an incandescent color; and a package member comprising at least a partial transmissive part covering the blue LED chip, the red LED chip, and the yellow phosphor. The primary white light falls in a region of (0.413, 0.502), (0.335, 0.376), (0.37, 0.371), and (0.439, 0.48) based on a CIE color coordinate standard. | 2009-10-01 |
20090243458 | LIGHT EMITTING DIODE PACKAGE FOR PROJECTION SYSTEM - A light emitting diode (LED) package for a projection system is provided, which includes a package body having an inner space formed therein and having an open upper portion; and an LED chip mounted onto a bottom of the package body, wherein the package body includes a socket coupling portion formed around the upper portion of the package body to have a certain corresponding thickness and height allowing the socket coupling portion to be inserted into the socket of the optical engine. | 2009-10-01 |
20090243459 | DISCHARGE LAMP, IN PARTICULAR LOW PRESSURE DISCHARGE LAMP - The invention relates to a discharge lamp, in particular a low pressure discharge lamp, with a discharge vessel ( | 2009-10-01 |
20090243460 | FILM-PROVIDED MOLDED PIECE, METHOD FOR AND APPARATUS FOR PRODUCING THE SAME - An electric connection part between a bulb and a terminal is masked without using a special masking material when a lamp unit is produced through a primary injection step of molding a lamp main body and a lens part while using a movable mold and a fixed mold, a film forming step of covering the lamp main body with a film, and a secondary injection step of uniting the lamp main body and the lens part together with a resinous material. The bulb is incorporated through a step set between the primary injection step and the film forming step. In the state in which the bulb is incorporated in the lamp main body, the surface of the top of the bulb is covered with a film, and a part hidden by the shadow of the film is masked, and hence electric insulation properties are secured. | 2009-10-01 |
20090243461 | FILAMENT LAMP - To provide a filament lamp having a plurality of filaments disposed together in sequence in the tube axis direction of a light-emitting tube, with miniaturized hermetically sealed parts, by certain sheets of metal foil ( | 2009-10-01 |
20090243462 | DISPLAY ELEMENT - This invention provides a display element having a reduced white color tone variation during repeated drive. This display element contains an electrolyte between opposed electrodes. The electrolyte contains silver or a compound containing silver in its chemical structure. The opposed electrodes are driven so that silver is dissolved and precipitated. The display element is characterized in that the electrolyte contains a compound represented by general formula (A) and a compound represented by general formula (1) or (2). | 2009-10-01 |
20090243463 | DISCHARGE TUBE AND LAMP WITH IMPROVED LUMINANCE - A discharge tube arrangement for a compact fluorescent lamp is provided. This discharge tube arrangement has a central axis and longitudinal end portions, and is formed of at least one discharge tube made of glass, encloses a discharge volume which is filled with a discharge gas and has a fluorescent phosphor coating disposed on an inner surface portion of the tube. The tube forms a continuous arc path and has electrodes disposed at each end of the arc path. The discharge tube arrangement comprises a first cold chamber in order to control and maintain a required mercury vapor pressure. The first cold chamber is located in a longitudinal end portion of the tube arrangement. The discharge tube arrangement is further provided with at least one second cold chamber, which is positioned between the longitudinal end portions of the discharge tube arrangement. The at least one second cold chamber is positioned on the wall of the tube, and has a cold chamber wall protruding substantially away from the central axis of the discharge tube arrangement. The discharge tube arrangement may have a coiled configuration with helical tube portions or a multifinger configuration with straight tube members. | 2009-10-01 |
20090243464 | Display Device and Method of Fabricating the Display Device - In an EL element having an anode, an insulating film (bump) formed on the anode, and an EL film and a cathode formed on the insulating film, each of a bottom end portion and a top end portion of the insulating film is formed so as to have a curved surface. The taper angle of a central portion of the insulating film is set within the range from 35° to 70°, thereby preventing the gradient of the film forming surface on which the EL film and the cathode are to be formed from being abruptly changed. On the thus-formed film forming surface, the EL film and the cathode can be formed so as to be uniform in thickness, so that occurrence of discontinuity in each of EL film and the cathode is prevented. | 2009-10-01 |
20090243465 | LIGHT-EMITTING DEVICE - A light-emitting device having an anode and a cathode is disclosed herein. An embodiment of the light-emitting device comprises a first lead connected to the anode of the light-emitting device and a second lead connected to the cathode of the light-emitting device. The first lead has a first bend, wherein the direction of the first bend indicates that the first lead is connected to the anode. The second lead has a second bend, wherein the direction of the second bend indicates that the second lead is connected to the cathode. | 2009-10-01 |
20090243466 | ORGANIC EL DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic EL display device includes a first light emission layer which includes a first dopant material having a first absorbance peak in absorbance spectrum characteristics and a first host material having a first absorbance bottom on a shorter wavelength side than the first absorbance peak, the first light emission layer extending over the first to third organic EL elements and being disposed above pixel electrodes of the first to third organic EL elements, and a second light emission layer which includes a second dopant material having a second absorbance peak in absorbance spectrum characteristics and a second host material having a second absorbance bottom on a shorter wavelength side than the first absorbance peak and than the second absorbance peak, the second light emission layer extending over the first to third organic EL elements and being disposed above the first light emission layer. | 2009-10-01 |
20090243467 | PHOSPHOR AND PRODUCTION METHOD THEREOF, AND PHOSPHOR-CONTAINING COMPOSITION, LIGHT EMITTING DEVICE, IMAGE DISPLAY AND LIGHTING SYSTEM - To provide a phosphor having nearly spherical shapes, the phosphor has an elemental ratio represented by the formula below, and contains at least two kinds of Li, Na, K, Rb, Cs, P, Cl, F, Br, I, Zn, Ga, Ge, In, Sn, Ag, Au, Pb, Cd, Bi and Ti. | 2009-10-01 |
20090243468 | ARYLIMINO-ISOINDOLINE COMPLEXES FOR USE IN ORGANIC LIGHT EMITTING DIODES - Materials comprising emissive arylimino-isoindoline complexes comprising 1,3-bis(2-pyridylimino)isoindoline (BPI) transition metal and lanthanide complexes as described. Organic light emitting devices comprising these complexes are also described. | 2009-10-01 |
20090243469 | ORGANIC ELECTROLUMINESCENT ELEMENT AND DISPLAY DEVICE INCLUDING THE SAME - An organic electroluminescent element which has a long lifetime and excellent manufacturability includes a charge-transporting polymer material having high mobility and solubility in solvents, and further includes a pair of electrodes and an organic compound layer sandwiched between the pair of electrodes, at least one of the electrodes being transparent, the organic compound layer being formed of one or more layers, and at least one of the one or more layers containing at least one charge-transporting polyester represented by Formula (I-1) or (I-2). | 2009-10-01 |
20090243470 | ORGANIC LIGHT-EMITTING SUBSTRATE, METHOD FOR MANUFACTURING THE SAME, AND ORGANIC LIGHT-EMITTING DISPLAY APPARATUS HAVING THE SAME - An organic light-emitting substrate includes; a base substrate including a display area and a peripheral area formed around the display area, an organic light-emitting diode including a pixel electrode, a common electrode and an organic light-emitting part, the pixel electrode being formed in a unit pixel of the display area, the common electrode being formed over the display area, and the organic light-emitting part being disposed between the pixel electrode and the common electrode, a driving circuit part which applies driving current to the pixel electrode and is electrically connected to the pixel electrode, and a common voltage subsidiary line formed on substantially the same layer as the pixel electrode, spaced apart from the pixel electrode, disposed under the common electrode, and electrically connected to the common electrode. | 2009-10-01 |
20090243471 | ORGANIC ELECTROLUMINESCENT DEVICE - An organic EL device is disclosed in which the amount of dopant added is easily controlled, and which is able to achieve stable light emission that does not depend on the current density of electrical current passing through the device. The organic electroluminescent device includes a first electrode, an organic electroluminescent layer having a hole injecting and transporting layer, an organic emissive layer and an electron injecting and transporting layer, and a second electrode. The organic emissive layer has an inner layer interposed between two outer layers. The outer layers contact the hole injecting and transporting layer and the electron injecting and transporting layer, respectively. The two outer layers are composed of a host material and a first fluorescent dopant, and the inner layer is composed of a host material, a first fluorescent dopant and a second fluorescent dopant. The first fluorescent dopant has a larger bandgap than the second fluorescent dopant. | 2009-10-01 |
20090243472 | FLAT PANEL DISPLAY DEVICE - A flat panel display device including: a plurality of sub-pixels for emitting light having different wavelengths; and an intensity adjusting layer in a light path of at least one sub-pixel from among the plurality of sub-pixels and for adjusting an intensity of light emitted from a corresponding sub-pixel of the at least one sub-pixel. | 2009-10-01 |
20090243473 | ORGANIC ELECTROLUMINESCENCE DEVICE - An organic electroluminescent device, including: a cathode; an anode; and organic layers including at least an emitting layer and an electron-transporting layer between the cathode and the anode, the electron-transporting material with the slowest electron mobility constituting the electron-transporting layer having an electron mobility of 2.0×10 | 2009-10-01 |
20090243474 | Organic EL display device - A sealing substrate is arranged to oppositely face an element substrate on which organic EL layers are formed in a matrix array with a sealing material sandwiched therebetween. A gel-state desiccant is filled in an inner space surrounded by the element substrate, the sealing substrate and the sealing material. Since the gel-state desiccant is in a gel state, the gel-state desiccant is flexibly filled in the inner space of the organic EL display device thus completely eliminating a gap. Since the inner space is filled with the gel-state desiccant, moisture hardly intrudes into the inner space from the outside and, at the same time, a mechanical strength of the organic EL display device is also enhanced. | 2009-10-01 |
20090243475 | Organic Electroluminescence Element, Manufacturing Method for An Organic Electroluminescence Element and Display Unit - One embodiment of the present invention is an organic electroluminescent element including a substrate, a first electrode arranged on said substrate, a luminescent medium layer including at least an organic luminescent layer and a molybdenum oxide layer arranged on the first electrode, a second electrode facing the first electrode, the luminescent medium layer sandwiched between the electrodes and the molybdenum oxide layer including at least molybdic anhydride and one or more other inorganic compounds. | 2009-10-01 |
20090243476 | Acenaphthoquinoxaline Derivative, Light-Emitting Element, Light-Emitting Device, and Electronic Device - An acenaphthoquinoxaline derivative represented by a general formula (G1) is provided. The acenaphthoquinoxaline derivative represented by the general formula (G1) easily receives electrons and has an electron-transporting property. Therefore, the acenaphthoquinoxaline derivative can be suitably used for a light-emitting element. | 2009-10-01 |
20090243477 | ORGANIC EL DISPLAY DEVICE - An organic EL display device including at least one high-refractive-index layer having a refractive index of 1.6 or higher, and at least one low-refractive-index layer having a refractive index lower than 1.6, wherein the low-refractive-index layer contains high-refractive-index particles having a refractive index of 1.6 or higher, and wherein the high-refractive-index particles are disposed in a region 1.0 time to 1.2 times an average particle diameter of the particles from an interface between the high-refractive-index layer and the low-refractive-index layer, and the average particle diameter is 0.3 μm to 1 μm. | 2009-10-01 |
20090243478 | Organic Electroluminescence Element, Method for Manufacturing the Same and Organic Electroluminescence Display Device - One embodiment of the present invention is an organic electroluminescence element including an anode which is a hole injection electrode; a cathode which is an electron injection electrode, the cathode facing the anode; an organic light emitting layer between the anode and the cathode, the organic light emitting layer including a molybdenum oxide layer, the molybdenum oxide layer including a crystal molybdenum oxide and an amorphous molybdenum oxide, and the crystal molybdenum oxide and the amorphous molybdenum oxide being mixed or stacked. | 2009-10-01 |
20090243479 | ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE AND LIGHTING DEVICE - Disclosed is an organic electroluminescent device having high external quantum efficiency and long life. Also disclosed are an illuminating device and, a display device. The organic electroluminescent device is characterized by containing at least one compound having a partial structure represented by the following general formula (1). [chemical formula 1] (1) In the formula, R | 2009-10-01 |
20090243480 | ORGANIC ELECTRO-LUMINESCENCE DISPLAY DEVICE WITH AN ORGANIC ELECTRO-LUMINESCENCE ARRAY AND FABRICATING METHOD THEREOF - An organic electro-luminescence display device and a fabricating method thereof for preventing deterioration of light-emission efficiency and picture quality are provided. In the organic electro-luminescence display device, an organic electro-luminescence array has first and second electrodes provided on a substrate with an organic light-emitting layer therebetween and a barrier rib parallel to any one of the first and second electrodes. A dummy barrier rib is connected to each of the barrier ribs and provided in such a manner to enclose the organic electro-luminescence array along with the barrier rib. | 2009-10-01 |
20090243481 | ORGANIC ELECTROLUMINESCENT DEVICE AND METHOD FOR FABRICATING THE SAME - An organic EL device based on top emission and a method for fabricating the same arc disclosed. The organic EL device includes a substrate, a thin film transistor (TFT) formed on the substrate, a planarization film formed on the entire surface of the substrate including the TFT, a first electrode formed on the planarization film, having a surface at a corner area higher than a surface at a center area, an organic EL layer formed on the first electrode, and a second electrode formed on the organic EL layer. | 2009-10-01 |
20090243482 | DISPLAY DEVICE - A display device comprising: a light-emitting element formed on a substrate; a driver element formed on the substrate, that controls a current flowing in the light-emitting element; a switching element that switches the driver element; and a light-blocking film formed so as to correspond to only the switching element. | 2009-10-01 |
20090243483 | ORGANIC LIGHT-EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME - An organic light-emitting display apparatus and a method of manufacturing the same, the apparatus including: a substrate; a first electrode formed on the substrate; an intermediate layer formed on the first electrode, including an organic emissive layer; a second electrode formed on the intermediate layer; and an insulating member interposed between the intermediate layer and the second electrode, on an edge of the first electrode. | 2009-10-01 |
20090243484 | ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE - An organic electroluminescent display device is provided, which includes a substrate having anodes arranged thereon, a bank which defines a luminous region on the anode, an organic emitting layer formed in the luminous region, and a cathode formed on the bank and the emitting layer. A desiccant layer selectively formed on the bank with interposition of the cathode. | 2009-10-01 |
20090243485 | HIGH-PRESSURE GAS DISCHARGE LAMP HAVING ELECTRODE RODS WITH CRACK-INITIATING MEANS - A high-pressure gas discharge lamp having a bulb ( | 2009-10-01 |
20090243486 | Discharge Lamp - Disclosed is a discharge lamp, particularly a high-pressure xenon or mercury discharge lamp, comprising a bulb that is provided with two diametrically arranged bulb shafts, each of which supports one electrode with an electrode holding rod and an electrode head. The electrode holding rods are gas-tightly fixed in final sections of the bulb shafts by means of a sealing process. According to the invention, the bulb shafts encompass at least two knobs for supporting the electrodes, which are in contact with the electrode holding rods in at least some sections. | 2009-10-01 |
20090243487 | High-pressure discharge lamp having an outer envelope arranged around a discharge vessel - A high-pressure discharge lamp has an outer envelope ( | 2009-10-01 |
20090243488 | MICROWAVE ENERGIZED PLASMA LAMP WITH DIELECTRIC WAVEGUIDE - A plasma lamp including a waveguide body comprising at least one dielectric material. The body is coupled to a microwave power source which causes the body to resonate in at least one resonant mode. A lamp chamber integrated with the body contains a bulb with a fill forming a light-emitting plasma when the chamber receives power from the resonating body. A bulb either is self-enclosed or an envelope sealed by a window or lens covering the chamber aperture. Embodiments disclosed include lamps having a drive probe and a feedback probe, and lamps having a drive probe, feedback probe and start probe, which minimize power reflected from the body back to the source. | 2009-10-01 |
20090243489 | ELECTRIC POWER GENERATION CONTROL DEVICE FOR MOTOR VEHICLE - An electric power generation control device for a motor vehicle is provided which ensures a satisfactory regenerative effect without entailing flickering of or reduction in life of headlights even if the headlights are turned on at all times. The electric power generation control device lowers the power generation voltage of an alternator when the electricity storage amount of a battery is at or above a predetermined level. While lighting of a headlight bulb is detected, lowering of the power generation voltage is restrained if the state of sunlight is equivalent to nighttime, and the power generation voltage is allowed to be lowered if the sunlight state is equivalent to daytime. | 2009-10-01 |
20090243490 | Unbalanced ion source - A dual unbalanced indirectly heated cathode (IHC) ion chamber is disclosed. The cathodes have different surface areas, thereby affecting the amount of heat radiated by each. In the preferred embodiment, one cathode is of the size and dimension typically used for IHC ionization, as traditionally used for hot mode operation. The second cathode, preferably located on the opposite wall of the chamber, is of a smaller size. This smaller cathode is still indirectly heated by a filament, but due to its smaller size, radiates less heat into the source chamber, allowing the ion source to operate in cold mode, thereby preserving the molecular structure of the target molecules. In both modes, the unused cathode is preferably biased so as to be at the same potential as the IHC, thus allowing it to act as a repeller. | 2009-10-01 |
20090243491 | FLUORESCENT LAMP DRIVING DEVICE AND LIQUID CRYSTAL DISPLAY APPARATUS USING THE SAME - A fluorescent-lamp-driving device contains a driving control circuit that receives direct current power voltage and a lamp control signal for performing drive control on fluorescent lamps and converts the direct current power voltage to alternating current power voltage, and a transformer containing a winding at its primary side and windings for driving a heater and for maintaining discharge at its secondary side. The alternating current power voltage is supplied to heaters of the fluorescent lamps at their high electric potential side. The driving control circuit increases the frequency of the alternating current power supply to a frequency thereof in which voltage of the fluorescent lamps is equal to a discharge start voltage of the fluorescent lamps or less based on the lamp control signal at a period of starting-up time of the fluorescent lamps. | 2009-10-01 |
20090243492 | Ultraviolet Output Stabilization by Fluorescent Bulb Temperature Monitoring - A controller measures a temperature at which an ultraviolet (UV) fluorescent lamp is operating and, in response, controls heat transfer between a heat-generating portion of the fluorescent lamp power supply circuitry, such as the ballast, and the interior of the curing chamber to maintain the fluorescent lamps operating at a stable temperature. | 2009-10-01 |
20090243493 | Camera flash with reconfigurable emission spectrum - A method and an apparatus for spectrum synthesis for use in a flash unit, wherein the spectrum synthesis includes combining a plurality of emissive light sources in order to provide a combine output beam and producing the output spectrum for the combined output beam at least based on a reference spectrum. The reference spectrum can be obtained by sensing the spectrum of ambient light or selected from a plurality of stored spectra. The flash unit has at least two emissive light sources and each of the light sources can be adjusted relative to each other so that the outputs from the light sources can mimic a selected illumination scenario. It is possible to use a mixture of quantum dots to tailor each light source so that the combined spectra from different light sources can reasonably mimic a number of frequently used illumination scenario. | 2009-10-01 |
20090243494 | LIGHT SOURCE DEVICE AND IMAGE DISPLAY APPARATUS - A light source device includes: a plurality of light emission units which emit light; a scattering unit which scatters at least a part of light received from the plural light emission units; a light detecting unit which detects a part of light emitted from the plural light emission units and scattered by the scattering unit; and a control unit which controls the plural light emission units based on detection result from the light detecting unit. | 2009-10-01 |
20090243495 | ADJUSTABLE LIGHTING DEVICE - A lighting device is disclosed. The lighting device can be battery-powered and can include one or more LEDs within a light assembly. The device also can include a battery compartment, a first frame element, and a second frame element. The light assembly can be supported by the first frame element and free to tilt on a first axis relative to the first frame element. The light assembly can be free to rotate relative to the second frame element on a second axis substantially perpendicular to the first axis. The second frame element can be, for example, a plate configured to be fixedly mounted to a surface, such as a wall. | 2009-10-01 |
20090243496 | APPARATUS AND METHOD OF DRIVING BACKLIGHT UNIT AND DISPLAY APPARATUS EMPLOYING THE SAME - An apparatus and a method of driving a backlight unit and a display apparatus employing the same. Wherein a driving current, which is divided in a step-by-step fashion, is sequentially changed and output according to a current control signal. The current control signal is divided into low levels and high levels that are consecutively and repeatedly applied to a backlight controller. The driving current is reduced from a reference current corresponding to a number of the high levels during a time period that starts when the low level is applied for at least a first reference time interval and ends when the high level is applied for at least a second reference time interval. | 2009-10-01 |
20090243497 | IMAGE DISPLAY APPARATUS AND METHOD FOR DRIVING THE SAME - An image display apparatus includes a rear plate including electron-emitting devices, a face plate including an anode electrode, a voltage applying unit configured to apply a voltage to the anode electrode, a switching unit configured to switch between a display state of displaying an image and a non-display state of displaying no image, and a timing unit. The timing unit measures a non-display time, which is an amount of time that the switching unit allows the non-display state to continue. After the timing unit has measured a certain non-display time, the voltage applying unit applies, to the anode electrode, a second voltage lower than a first voltage to be applied in the display state, to enable the electron-emitting devices to emit electrons. | 2009-10-01 |
20090243498 | Electroluminescent display devices - The pixels of an active matrix display device have a current-driven light emitting display element, a drive transistor for driving a current through the display element, a storage capacitor for storing a pixel drive voltage to be used for addressing the drive transistor, a light-dependent device for detecting the brightness of the display element, and driver circuitry for providing data signals to the pixel external to the pixel array. This provides a pixel with optical feedback to compensate for display element ageing. The driver circuitry has a processing means for processing the feedback brightness signals and derives from them a threshold voltage for the drive transistor of the pixel as well as information relating to the performance of the display element, for ageing compensation. | 2009-10-01 |
20090243499 | METHODS FOR DRIVING AN OLED PANEL - A method for driving an organic light emitting display (OLED) panel having a plurality of organic light emitting diodes is provided. The organic light emitting diodes are coupled to a plurality of segment lines and a plurality of common lines in a matrix structure. The organic light emitting diodes coupled to the same common lines are divided into a plurality of groups according to colors of the OLED panel. Driving currents are provided to the organic light emitting diodes of the groups according to a plurality of pulse width modulation (PWM) manners. The PWM manners generate waveforms having pulse width corresponding to grayscale in a period, wherein each PWM manner corresponds to different colors of the OLED panel. | 2009-10-01 |
20090243500 | LCD and Backlight Module Thereof - A backlight module includes fluorescent lamps, an inverter for supplying power for the lamps, dimming circuits each connecting the lamp in series, a signal processor for converting a video signal into a dimming signal, and a control unit. The lamps are disposed as an array having more than two columns and two rows on a substrate. The control unit electrically connects the signal processor and the dimming circuit and changes the luminance of the lamps by adjusting the dimming circuit according to the dimming signal. | 2009-10-01 |
20090243501 | COMBINED SERIAL/PARALLEL LIGHT CONFIGURATION - Exemplary embodiments connect lights in both series and parallel. The lights can be LEDs, organic light emitting diodes (OLED), field emitting display (FED), light emitting polymer (LEP), or organic electro-luminescence (OEL). Exemplary embodiments also mount the lights on a printed circuit board (PCB) which has low thermal resistivity between the surface containing the lights and the opposite surface. The opposite surface may be metallic, and air may be forced over this surface in order to cool the assembly. | 2009-10-01 |
20090243502 | DISPLAY DEVICE - A light-emitting device is provide, which includes a first substrate, a first electrode and a second electrode, which are disposed above the first substrate and insulated from each other, enabling a difference in electrical potential to be given between the first electrode and the second electrode, a second substrate disposed to face the first substrate and spaced apart from the first substrate, a light-emitting layer disposed between the first substrate and the second substrate, the light-emitting layer includes a light-emitting material which emits light through an electrochemical oxidation or reduction thereof and chloride ions, and a barrier electrode interposed between the first electrode and the second electrode to partition the light-emitting layer. This barrier electrode is used as a standard for the electrical potential. | 2009-10-01 |
20090243503 | DISCHARGE LAMP LIGHTING DEVICE - A discharge lamp lighting device includes: a first series circuit unit in which a primary coil is connected in series to a capacitor; a second series circuit unit in which a secondary coil is connected in series to a discharge lamp, the secondary coil being a winding wound on the side portion of a rod-shaped magnetic core along the axial direction of the magnetic core, being greater in the number of turns than the primary coil, being smaller in dimension of its cross section parallel to the axial direction of the magnetic core than in dimension of its cross section in the radial direction of the magnetic core and forming a transformer along with the primary coil; and a bridge DC-AC converting circuit which includes four transistors, converts DC voltage supplied from a power supply unit to AC voltage and supplies the AC voltage to both ends of the first and the second series circuit units connected in parallel to each other, and the discharge lamp lighting device being capable of generating voltage by a small and simple circuit at the time of starting the lamp and performing preheating control. | 2009-10-01 |
20090243504 | BACKLIGHT UNIT - The present invention relates to a backlight unit that includes at least one first light emitting diode (LED) package and at least one second LED package, wherein the first LED package includes a blue LED chip, a green LED chip, and a first phosphor, the first phosphor being excited by blue light and to emit light to be mixed with blue light and green light respectively emitted from the blue LED chip and the green LED chip, the first LED package to thereby emit white light; the second LED package includes a blue LED chip, a red LED chip, and a second phosphor, the second phosphor being excited by blue light and to emit light to be mixed with blue light and red light respectively emitted from the blue LED chip and the red LED chip, the second LED package to thereby emit white light; and the first LED package and the second LED package are alternately arranged. | 2009-10-01 |
20090243505 | FREQUENCY SYNCHRONIZING METHOD FOR DISCHARGE TUBE LIGHTING APPARATUS, DISCHARGE TUBE LIGHTING APPARATUS, AND SEMICONDUCTOR INTEGRATED CIRCUIT - (1) An oscillator generates a triangular wave signal whose inclination for charging a capacitor and inclination for discharging the same are the same and which is used to turn on/off FETs Qp | 2009-10-01 |
20090243506 | METHOD AND DEVICE FOR DRIVING A LAMP - A method for driving a lamp with a variable duty cycle in a timing relationship with an input image signal (Si) comprises the steps of: receiving the image signal having a predetermined frame period (t | 2009-10-01 |
20090243507 | SUNNY-CLOUDY SCALE FOR SETTING COLOR TEMPERATURE OF WHITE LIGHTS - A control ( | 2009-10-01 |
20090243508 | BALLAST CIRCUIT - A ballast circuit is provided. The ballast circuit comprises a first lamp set, a second lamp set, a detection circuit, and a latch circuit. The first lamp set comprises a first inductor and a plurality of containing areas. The second lamp set comprises a second inductor and at least one containing area. The detection circuit is configured to receive a direct current (DC) voltage and coupled to the containing areas of the first and second lamp sets so that the detection circuit, the first inductor, the second inductor, and a plurality of lamps contained in the containing areas are in a series connection and generate a first signal. The latch circuit is coupled to the detection circuit and configured to selectively start in response to the first signal. | 2009-10-01 |
20090243509 | USER INTERFACE FOR WIRELESS LIGHTING CONTROL - A system apparatus for controlling a lighting environment having one or more remote switches that control one or more lighting loads, has an active mode under which the system operates for a user, a linking mode to connect one or more switches to one or more lighting loads, an unlinking mode to disconnect one or more switches from the one or more lighting loads, one or more channels connecting one or more switches to one or more lighting loads, and a scene mode connecting one or more channels and dimming all the lighting loads to a desired dimness level in all connected channels to create a scene. | 2009-10-01 |
20090243510 | Circuit Arrangement and Method For Controlling an Electrical Load - A circuit arrangement ( | 2009-10-01 |
20090243511 | Stabilized high power LED module - A stabilized high power LED module includes a supporting frame and an illuminating unit. The supporting frame is made of thermal conductive material for radiating heat produced by the illuminating unit. The illuminating unit includes a light circuit supported by the radiating supporting frame, and a plurality of illuminators which are electrically mounted to the light circuit and spacedly aligned along the supporting frame, wherein the light circuit has a voltage regulation preset for the illuminators in series to stabilize a voltage supply of the light circuit for protecting the illuminators. | 2009-10-01 |
20090243512 | Drive circuit, light emitting diode head, and image forming apparatus - A drive circuit includes a drive element for supplying a drive current to a driven element; a control voltage generation circuit for outputting a control voltage to the drive element to generate the drive current through inputting a reference voltage; and a switch section for shutting down the reference voltage when the driven element is not driven so that the control voltage decreases to a level not to generate the drive current. | 2009-10-01 |
20090243513 | BACKLIGHT ASSEMBLY AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A backlight assembly including: a plurality of lamp sockets each having a socket electrode; a plurality of lamps inserted into the plurality of lamp sockets, respectively, and each of the plurality of lamps comprising a lamp electrode connected with the socket electrode of the lamp socket in which the lamp is inserted; an inverter outputting a driving voltage for driving the plurality of lamps; and a balance board having a plurality of balance capacitors, wherein the plurality of balance capacitors are inserted into the plurality of lamp sockets, respectively, and each of the balance capacitors comprises a first balance electrode provided with the driving voltage and a second balance electrode connected with the socket electrode of the lamp socket in which the balance capacitor is inserted. | 2009-10-01 |
20090243514 | POWER SUPPLY APPARATUS FOR LIGHTING DEVICE - The apparatus is provided with a plurality of lighting devices whose light sources are one or more solid light emitting elements which are supplied with current from a single direct-current power source, lit, and driven respectively, a single main controller | 2009-10-01 |
20090243515 | MOTION ADAPTIVE AMBIENT LIGHTING - A method for controlling an ambient lighting element including receiving a content signal, analyzing the content signal to determine a motion vector of an object ( | 2009-10-01 |
20090243516 | LIGHT EMITTING APPARATUS - A light emitting apparatus includes a clock generating circuit and a light-emitting module. The clock generating circuit is for generating a clock control signal. The light emitting module includes a current supplying unit and a light emitting unit. The current supplying unit is for controlling a driving current flowing through a path, and includes a driving current source and a switch unit, which are both positioned in the path. The driving current source is for providing the driving current. The switch unit is coupled to the driving current source and the clock generating circuit, and refers to the clock control signal to open or short for controlling whether the driving current flows through the path. The light emitting unit is positioned in the path and coupled to the current supplying unit, and is for providing a light source according to the driving current. | 2009-10-01 |
20090243517 | SYSTEM AND METHOD FOR CONTROLLING LIGHTING - A controller for controlling a plurality of devices configured for wireless communications in a facility includes a data communications interface communicating with at least one of the devices. The controller further includes a control module configured to provide a control signal to the data communications interface for communicating to a transceiver associated with the device and for turning off the device according to an algorithm wherein the control signal is provided based on a time of day and/or a sensed condition relating to use of the facility. The transceiver reports device data to the control module to quantify a reduction in power obtained by controlling the devices according to the algorithm. | 2009-10-01 |
20090243518 | MOTIVE POWER OUTPUT DEVICE, VEHICLE EQUIPPED WITH THE DEVICE, AND CONTROL METHOD FOR MOTIVE POWER OUTPUT DEVICE - A torque command for a first motor is set by setting a maximum torque restriction and a minimum torque restriction in a range, where the sum of the torques output from the first and second motors to a driving shaft be within a range from 0 to a required torque, the sum of the electric powers input from or output to the first and second motors be within a range of input and output restrictions of a battery, and the torque of the second motor be within a range from a value smaller than 0 by the permissible maximum amount of change to the sum of the permissible maximum amount of change and the previous torque command. A torque command for the second motor is set so that the required torque is output to the driving shaft within a range of the input and output restrictions of the battery. | 2009-10-01 |
20090243519 | Electromagnetic actuator driving method - An electromagnetic actuator includes a stator and a movable body. The stator includes a core provided with magnetic poles and a coil wound on at least one of the magnetic poles. The movable body includes a permanent magnet and supported in such a manner as to make reciprocating in a direction perpendicular to a direction in which the permanent magnet opposes the magnetic poles. The movable body is reciprocated upon applying an alternating voltage to the coil. An electromagnetic actuator driving method for driving the electromagnetic actuator includes performing feedback control of the alternating voltage in which the alternating voltage is applied to the coil during a first half of a control period and in which an induced electromotive force generated in the coil during a second half of the control period is used as a control signal. | 2009-10-01 |
20090243520 | Method for controlling operation of a linear vibration motor - A linear vibration motor includes a stator formed of an electromagnet with a winding, a vibrator provided with a permanent magnet and a control unit for controlling a driving current supplied to the winding of the electromagnet. The linear vibration motor is configured to reciprocate the vibrator relative to the stator. A method for controlling operation of the linear vibration motor includes: providing a non-energization period during which no driving current flows through the winding of the electromagnet, the non-energization period being equal to greater than a ¼ cycle; detecting an electromotive voltage induced in the winding as the vibrator makes vibrating movement within the non-energization period; detecting the displacement, velocity or acceleration of the vibrator based on the electromotive voltage thus detected; and controlling the driving current supplied to the winding based on the displacement, velocity or acceleration of the vibrator thus detected. | 2009-10-01 |
20090243521 | METHODS AND APPARATUS TO REDUCE THE STOPPING TIME OF SPINDLE MOTORS - Methods and apparatus to reduce the stopping time of a spindle motor are disclosed. An example method includes detecting a dissipation current flowing in a spinning motor; determining when the dissipation current drops below a threshold value; and, in response to the dissipation current dropping below the threshold value, applying a voltage to the motor to increase the dissipation current for a duration. In some examples, the voltage is removed from the motor when the motor reaches a predetermined rotational velocity to avoid reverse rotation. | 2009-10-01 |
20090243522 | MOTOR DRIVE SYSTEM - In a drive system of an AC motor in which a motor current is feedback-controlled, a motor current command is produced in a normal operation according to a torque command value on an optimum efficiency characteristic line so as to select an optimum current phase maximizing an output torque with a constant motor current amplitude. Conversely, when the AC motor produces an excessively generated power exceeding a regeneratable power quantity of the AC motor, a consuming operation is performed for intentionally increasing the power loss in the AC motor. In the consuming operation, the motor current command is produced according to the torque command value on a loss increase characteristic line to change the current phase from the above optimum value. Thereby, the power loss in the AC motor can be increased to consume the surplus power without causing instability in the motor control. | 2009-10-01 |
20090243523 | Electric rotating machine control system and vehicle driving system including the electric rotating machine control system - A control system includes an electric rotating machine; a driving circuit that is connected to a DC power supply, the driving circuit includes a frequency conversion unit configured such that, when the electric rotating machine is to be driven in a power running mode, the frequency conversion unit converts an output of the DC power supply into AC electric power, and when the electric rotating machine is to be driven in a regenerative operation mode, the frequency conversion unit converts an output of the electric rotating machine into DC electric power; and a control unit that controls the driving circuit, wherein the control unit judges whether a connection between the DC power supply and the driving circuit is being maintained, and is configured such that, when the connection is not being maintained, regenerative electric power generated by the electric rotating machine is reduced by controlling the driving circuit. | 2009-10-01 |
20090243524 | Power Inverter - A power inverter comprises a power module connected at least to a rotating electric machine, a gate drive circuit board which supplies switching power to the power module, and a rotating electric machine control circuit board which supplies a signal for controlling the waveform of the switching power to the gate drive circuit board. A noise reduction board is formed on a board different from the rotating electric machine control circuit board. The configuration of the noise reduction board is such that various signals for forming a signal for controlling the waveform of the switching power by means of the rotating electric machine control circuit board are inputted through the noise reduction board to the rotating electric machine control circuit board. | 2009-10-01 |
20090243525 | INVERTER CONTROL METHOD - Two current threshold values are adopted, which are larger than the upper limit of current of an operating region. When a rotating speed is smaller than a speed threshold value, the current threshold value is adopted as a criterion to judge whether an input current to an inverter is abnormal, and when the rotating speed Rot is larger than that, the other current threshold value is adopted as the criterion. | 2009-10-01 |
20090243526 | DEVICE AND METHOD FOR DETECTING BACK ELECTROMOTIVE FORCE PHASE AND DEVICE AND METHOD FOR CONTROLLING EXCITATION - In a back electromotive force phase detecting device, a timing generating unit generates a timing signal indicating a start timing, an intermediate timing and an end timing of a 180-degree electrical angle period in a detection target phase, from an excitation pulse signal. A difference calculating unit receives the timing signal, and calculates a difference between a total PWM control period of the detection target phase during a first-half 90-degree period, and a total PWM control period of the detection target phase during a second-half 90-degree period. In an excitation control device, a control unit changes the capability of driving a motor based on an output of the back electromotive force phase detecting device. | 2009-10-01 |
20090243527 | INTEGRAL TYPE AIR CONDITIONER - When cooling operation or dehumidifying operation is started, a blower fan for an evaporator and an exhaust fan for a condenser are driven at an initial rotational number. A compressor is driven at a fixed rotational number. Due to load variation, an operating current supplied from a power source is changed. When the operating current exceeds a reference value, the rotational number of the blower fan is gradually reduced. When an endothermic quantity by the evaporator decreases, a temperature of a gas refrigerant flowing through the evaporator is lowered. Since the load applied on the compressor is reduced, the operating current decreases. In this way, when the compressor is loaded, the operating current increased, however, by controlling operation of the fans as described above, it is possible to prevent that the power source is shut off due to overcurrent and operation is stopped. | 2009-10-01 |
20090243528 | Control System for Window Lifters of a Motor Vehicle - A control system for a first window lifter adjusts a first window pane of a motor vehicle having a first drive, and for a second window lifter for adjusting a second window pane of the motor vehicle having a second drive, having a control device. The control device may be electrically connected both to the first drive and to the second drive for the purpose of energization. The control device may have a first sensor for determining a first adjustment position of the first window lifter, and a second sensor for determining a second adjustment position of the second window lifter, the first sensor and the second sensor being based on different physical operational principles. | 2009-10-01 |
20090243529 | MOTOR DRIVING CIRCUIT AND METHOD THEREOF - A motor driving circuit includes a control device, a detection module and a driving module. The control device is controlled by a control signal and is coupled to a motor. The control device includes a first terminal, a second terminal and a control terminal, wherein a driving current flowing through the motor flows through the first terminal and the second terminal. The detection module is used for detecting a voltage of the first terminal. The driving module is used for generating the control signal to control the driving current, wherein the detection module adjusts the driving capability of the driving module, thereby adjusting a slew rate of the control signal. | 2009-10-01 |
20090243530 | Variable voltage output power source for model trains - An apparatus that provides electrical power for the operation of analog motors or decoder-equipped motors, said apparatus comprising:
| 2009-10-01 |
20090243531 | INVERTER APPARATUS - An inverter apparatus comprises an inverter circuit using pairs of switching elements. The pseudo AC voltage of each phase of this inverter circuit is controlled by pulse modulation using pulses generated by a PWM generator, and the pseudo AC voltages are applied to a power supplied load. The average voltage of respective phases of the output voltages applied to the power supplied load is detected as a virtual neutral voltage corresponding to the neutral voltage of the power supplied load by detecting the voltage at a common node where the phases of a voltage detecting circuit provided between the inverter circuit and the power supplied load are connected. The detected virtual neutral voltage is fed back for controlling the output duty of each phase by the PWM generator. Thus the output voltage of each phase from the inverter circuit is controlled so as to become a target output voltage. The target output voltage can be accurately obtained stably at all times. | 2009-10-01 |
20090243532 | VEHICLE HAVING AN ARTICULATOR - Systems and methods for a vehicle mounted articulator are described. A vehicle conveniently allows an articulator to be moved to various remote work sites. In one embodiment, the articulator can be mounted on a movable base, thereby increasing the flexibility of use and/or reach of the articulator. Such vehicle-mounted articulators can be subjected to various potentially damaging situations due to motion of the vehicle. Various features that allow safe operation of the vehicle and the articulator are disclosed. | 2009-10-01 |
20090243533 | Servo Control Apparatus - The present invention provides a servo control apparatus capable of suppressing adverse effects of disturbance, load variation and the like, and realizing robust and high-performance speed control. | 2009-10-01 |
20090243534 | Motor Drive Circuit - A motor drive circuit comprising: a triangle wave generation circuit configured to charge/discharge a capacitor with a charging/discharging current having a current amount corresponding to an amplitude control voltage for controlling an amplitude of an oscillation voltage that varies in a triangle wave shape, and to output a charging voltage of the capacitor as the oscillation voltage; a pulse signal generation circuit configured to generate a pulse signal having a duty ratio corresponding to a level of a speed control voltage for controlling a rotational speed of a motor, based on a comparison result between the speed control voltage and the oscillation voltage output from the triangle wave generation circuit; and a drive circuit configured to intermittently drive a motor coil based on the pulse signal. | 2009-10-01 |
20090243535 | Multi-Input Relay Board - Fan relay boards are provided that include terminals configured to receive line power of approximately 115 volts, 208 volts, 230 volts, and 277 volts. The boards are configured to convert the line power to an approximately 24 volt output that is applied to a distribution circuit to select a high, medium, or low fan speed using relays. The boards may be coupled to a control device that designates the fan speed selected by the relays. The boards also may provide an approximately 24 volt power supply to external devices such as electric heaters, valves, and switches. | 2009-10-01 |
20090243536 | METHOD OF FULLY CHARGING AN ELECTRICAL ENERGY STORAGE DEVICE USING A LOWER VOLTAGE FUEL CELL SYSTEM - A fuel cell system that includes a fuel cell stack and an EESD electrically coupled to a common high voltage bus line. The EESD has a higher voltage output than the fuel cell stack, and thus the stack is unable to fully charge the EESD, for example, at system shut-down. In order to allow the fuel cell stack to fully charge the EESD, the EESD is separated into a plurality of separate electrical storage banks having lower voltage potentials. A series of contactors are provided to electrically couple the storage banks in series during normal system operation, and separately charge the storage banks using the fuel cell stack so that they are fully charged. The series of contactors can also be configured so that the storage banks can be electrically coupled in series during normal operation of the system and be electrically coupled in parallel during charging at system shut-down. | 2009-10-01 |