12th week of 2009 patent applcation highlights part 19 |
Patent application number | Title | Published |
20090072709 | LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS - A light-emitting device includes a light-emitting element having a first electrode layer, a second electrode, a light-emitting functional layer, a reflective layer which reflects light toward the light-emitting functional layer, a translucent semi-reflective layer which reflects some portion of light emitted from the light-emitting functional layer and transmits the rest of light therethrough, and a color filter which transmits light which passed through out the translucent reflective layer. An optical path d | 2009-03-19 |
20090072710 | FLUORESCENT LIGHTING CREATING WHITE LIGHT - A light emitting system ( | 2009-03-19 |
20090072711 | Organic light-emitting diode (oled) with improved light extraction and corresponding display unit - The invention relates to an organic light-emitting diode comprising on a substrate, from the rear face to the front face, at least one so-called rear electrode of a first type surmounted by an organic light-emitting layer, itself surmounted by at least one so-called front electrode of a second type, the organic light-emitting layer producing light when holes and electrons are injected into it by a current flowing through the electrodes, the types corresponding to an anode and a cathode, at least one of the electrodes being substantially transparent for the produced light in order to allow it to escape through one of the faces of said diode, referred to as the exit face. According to the invention, said substantially transparent electrode comprises at least one transparent extraction zone and at least one reflective zone adapted to return the produced light through the light-emitting layer, and said diode also comprises reflector means which are arranged on the opposite side of said substantially transparent electrode from the organic light-emitting layer and are adapted to return the produced light to said substantially transparent electrode through the light-emitting layer. The diode may be configured by embossing, and various embodiments are described. | 2009-03-19 |
20090072712 | Organic Electroluminescent Device - The present invention relates to the improvement of organic electronic devices, in particular electroluminescent devices, by using compounds which can have a plurality of isomers, where one of these isomers is present in excess. | 2009-03-19 |
20090072713 | COATED SUBSTRATE AND METHOD OF MAKING SAME - Provided are containment structures having a substrate structure having a plurality of walls extending from a surface to define a space, wherein at least one of the walls has an overall negative slope; a first layer deposited in the space having a first surface energy no greater and a second layer deposited on top of the first layer. | 2009-03-19 |
20090072714 | Composite Material, Material for Light-Emitting Element, Light-Emitting Element, Light-Emitting Device and Electronic Device - The present invention provides a composite material for a light-emitting element including a high molecular compound having an arylamine skeleton and an inorganic compound showing an electron accepting property to the high molecular compound. The absorption spectrum of the composite material is different from absorption spectra of the high molecular compound and the inorganic compound which each form the composite material. In other words, a composite material having an absorption peak in a wavelength which is seen in the absorption spectra of neither the high molecular compound nor the inorganic compound forming the composite material is superior in carrier transporting and injecting properties and a favorable material. In addition, the composite material can be formed by a wet method such as a sol-gel method, it can be apply to the increase of substrate size easily in a manufacturing process and advantageous industrially. | 2009-03-19 |
20090072715 | ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY AND ILLUMINATOR - Disclosed is a long-life organic electroluminescent element which can be driven at low voltage. Also disclosed are a display and illuminator using the same. Specifically disclosed is an organic electroluminescent element comprising on a substrate, an anode, a cathode and an organic compound layer arranged between the anode and the cathode and including at least one light emission layer. This organic electroluminescent element is characterized in that the organic compound layer includes an electron transport material-containing layer which contains an electron transport material represented by Formula (a) and at least one substance selected from the group consisting of metals, salts of the metals and electron-donating compounds. Formula (a) Ar1-(Ar2)n [In the formula, Ar1 represents a group derived from an aromatic hydrocarbon ring or a group derived from an aromatic heterocycle; Ar2 represents a group derived from an aromatic heterocycle; and n represents an integer of 2 or more. | 2009-03-19 |
20090072716 | AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT USING THE SAME - The present invention provides an aromatic amine derivative having a specific structure including a substituted diphenylamino group attached to a naphthalene structure. This aromatic amine derivative can realize an organic electroluminescent element having high emission luminance and luminous efficiency and having a prolonged lifetime. The organic electroluminescent element includes an organic thin film layer provided between a cathode and an anode. The organic thin film layer has a single layer or multilayer structure including at least a light emitting layer. At least one layer in the organic thin film layer contains the aromatic amine derivative either solely or as a component of a mixture. | 2009-03-19 |
20090072717 | Highly efficient polymer light-emitting diodes - An electro-optic device ( | 2009-03-19 |
20090072718 | Quinoxaline derivative, and light-emitting element, light-emitting device, and electronic device including quinoxaline derivative - An object of the present invention is to provide a quinoxaline derivative represented by a general formula (1). Ar | 2009-03-19 |
20090072719 | Passivation film and electronic display device including the passivation film - Example embodiments relate to a passivation film for protecting an electronic device. The passivation film may include a myelin layer. The myelin layer may have a thickness of about 100 Å to 10 μm. The passivation film may further include an inorganic film. Example embodiments also relate to an electronic display device including a substrate, an organic light-emitting device (OLED) disposed on the substrate, and a myelin layer disposed on the organic light-emitting device. A plurality of myelin layers and a plurality of inorganic films may be alternately stacked on the organic light-emitting device in lieu of a single myelin layer. | 2009-03-19 |
20090072720 | White organic light emitting device and display apparatus and lighting apparatus comprising the same - Provided is a white organic light emitting device and a display apparatus and a lighting apparatus that include the white organic light emitting device. The white organic light emitting device comprises an anode, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode. The light emitting layer includes a red light emitting layer, a blue light emitting layer, and a green light emitting layer sequentially formed from the anode. A functional layer, which blocks an energy transfer and controls electron mobility between the light emitting layers, is formed between the red light emitting layer and the blue light emitting layer or between the blue light emitting layer and the green light emitting layer. The functional layer formed between the red light emitting layer and the blue light emitting layer has a thickness of 50 to 100 Å. | 2009-03-19 |
20090072721 | LIGHT-EMITTING DEVICE AND DISPLAY APPARATUS - The object of the present invention is to provide a light-emitting device that emits phosphorescence with high efficiency. The light-emitting device of the present invention includes a host containing two kinds of dopants, wherein a dopant having a longer maximum-emission wavelength is doped in a low concentration and has a substituent. | 2009-03-19 |
20090072722 | LIGHT EMISSIVE DEVICE - An organic light emissive device, which comprises: an anode; a cathode; and an organic light emissive region between the anode and the cathode, which region comprises a polymeric electroluminescent material; wherein the emission from the polymeric electroluminescent material is colour shifted by the presence of a colour shifting unit in the polymer. | 2009-03-19 |
20090072723 | ORGANIC ELECTROLUMINESCENT DEVICE AND PRODUCTION METHOD OF THE DEVICE, AND DISPLAY APPARATUS - Provided are an organic electroluminescent device having high efficiency and a long lifetime, and a production method of the device. The organic electroluminescent device includes an anode, a cathode, and a stacked body interposed between the anode and the cathode and formed by sequentially stacking at least an inorganic compound layer and an organic emission layer, in which the inorganic compound layer has a hole-transporting ability and a work function of the inorganic compound layer changes continuously in a film thickness direction of the inorganic compound layer. | 2009-03-19 |
20090072724 | ORGANIC ELECTROLUMINESCENT APPARATUS AND ELCTRONIC APPRATUS - An organic electroluminescent apparatus includes a plurality of light-emitting elements each having an organic layer held between a pixel electrode and a counter electrode, and a partition pattern with which the organic layers of the individual light-emitting elements are defined. The partition pattern has a plurality of openings in which the organic layers are respectively provided, the plurality of openings including first openings provided in a peripheral region of a element area, in which the light-emitting elements are arranged, and second openings provided in a region closer to the center of the element area than the region where the first openings are provided. The first openings have larger planar dimensions than those of the second openings. | 2009-03-19 |
20090072725 | Light-Emitting Element, Light-Emitting Device, and Electronic Device - It is an object to provide a light-emitting element having long lifetime. A light-emitting element is provided, in which a light-emitting layer, a first layer, and a second layer are provided between a first electrode and a second electrode; the first layer is provided between the light-emitting layer and the first electrode; the second layer is provided between the light-emitting layer and the second electrode; the first layer is a layer for controlling the hole transport; the second layer is a layer for controlling the electron transport; and light emission is obtained from the light-emitting layer by applying voltage to the first electrode and the second electrode such that the potential of the first electrode is higher than that of the second electrode. | 2009-03-19 |
20090072726 | ORGANIC ELECTROLUMINESCENCE DEVICE - A process for preparing a platinum complex represented by the following formula (1) includes reacting a compound represented by the following formula (B-2) and a compound represented by the following formula (B-2′) with a compound represented by the following formula (A-0) to obtain a compound represented by the following formula (C-0); and reacting the compound represented by the formula (C-0) with a platinum salt: | 2009-03-19 |
20090072727 | ORGANIC ELECTROLUMINESCENCE DEVICE - An organic electroluminescent device includes a pair of electrodes; and an organic layer between the pair of electrodes, which comprises a light-emitting layer and contains a compound represented by the following formula (1): | 2009-03-19 |
20090072728 | ELECTROSPUN LIGHT-EMITTING FIBERS - The invention teaches electrospun light-emitting fibers made from ionic transition metal complexes (“iTMCs”) such as [Ru(bpy) | 2009-03-19 |
20090072729 | Flat Panel Display - A flat panel display capable of reducing element defects by decreasing taper angles of contact holes and a via hole. The flat panel display includes a thin film transistor having at least source and drain electrodes formed over an insulating substrate, an insulating layer having a via hole for exposing one of the source and drain electrodes, and an anode connected to said one of the source and drain electrodes through the via hole. The via hole and the anode are tapered with taper angles of 60° or less. The source and drain electrodes are connected respectively to source and drain regions of the thin film transistor through the contact holes. The contact holes are also tapered with taper angles of 60° or less. | 2009-03-19 |
20090072730 | ORGANIC ELECTRO-LUMINESCENT DISPLAY DEVICE - A display device comprises a first electrode formed on a substrate, a plurality of second electrodes formed on the substrate below the first electrode, an organic luminescent layer formed between the first electrode and the plurality of second electrodes, and a color filter layer formed on the substrate, wherein the color filter layer includes a red filter, a green filter, a blue filter and a white filter. | 2009-03-19 |
20090072731 | Display Device - A display device of the present invention has light-emitting devices making up a plurality of pixels placed in a matrix form. In the display device of the present invention, the light-emitting devices each possesses an emissive layer and a reflective element placed on the rear surface of the emissive layer; the emissive layer possesses at the said of the front side, a polarization separator which separates the light emitted from the emissive layer into two kinds of polarized components by the reflection and the transmission, and phase plate; the emissive layer substantially maintains the sate of the polarization of the light transmitted there-through; the reflective element at least reflects the circularly polarized light impinging in the vertical direction mainly as a circularly polarized light having a reverse helicity direction; and the polarization separator has a reflectance of the wavelength range from 520 nm to 600 nm smaller than a reflectance of range not more than 540 nm. | 2009-03-19 |
20090072732 | Organic electroluminescence device - An organic electroluminescence device comprising a cathode, an anode and, sandwiched between the cathode and the anode, at least a hole transporting layer and a light emitting layer containing a phosphorescent light emitting material and a host material, wherein the hole transporting layer comprises a hole transporting material having a triplet energy of 2.52 to 3.70 eV and a hole mobility of 10 | 2009-03-19 |
20090072733 | ELECTROLUMINESCENCE ELEMENT AND LIGHTING APPARATUS - An electroluminescent element wherein an electrode | 2009-03-19 |
20090072734 | ORGANIC EL DISPLAY DEVICE, METHOD OF MANUFACTURING ORGANIC EL DISPLAY DEVICE, ORGANIC TRANSISTOR, AND METHOD OF MANUFACTURING ORGANIC TRANSISTOR - It is an object to provide an organic EL display device having the organic transistor of less performance deterioration, a method of manufacturing the organic EL display device, an organic transistor, and a method of manufacturing the organic transistor. | 2009-03-19 |
20090072735 | LIGHT-EMITTING DEVICE OR DISPLAY DEVICE, AND METHOD FOR PRODUCING THEM - A light-emitting device or a display device comprising a resin film or a resin layer, a glass substrate, a light-emitting element laminate or a display element laminate, and a gas-barrier film in that order. The device is thin and hardly broken. | 2009-03-19 |
20090072736 | Organic electroluminescence display device - Provided is an organic EL display device in which a large amount of a moisture absorbent is formed in a limited narrow region. An organic electroluminescence display device includes a rectangle element substrate having a display region; and a sealing substrate firmly adhered to the element substrate at a protrusion formed on the periphery thereof, in which a moisture absorbent is formed in a region of a concave surface surrounded by the protrusion so as not to overlap the display region, and the moisture absorbent includes moisture absorbents which are formed of a plurality of linear pattern set each joined to adjacent another moisture absorbents so as to be disposed in parallel with each other, and the crosssections of the moisture absorbents intersecting the longitudinal direction of the moisture absorbents are formed in the shape of a plurality of mounds joined to each other. | 2009-03-19 |
20090072737 | Ultra violet flame sensor with run-on detection - A UV flame sensor for detecting a run-on condition in a flame detector tube is disclosed. The UV flame sensor comprises a pair of secondary electrodes that are enclosed in a mesotube to form a breakdown chamber in order to detect the run-on condition. These secondary electrodes are exposed to UV through an aperture in a cathode plate and are energized continuously by a lower voltage. The mesotube is expected to break down when the run-on condition occurs. The secondary electrodes can be placed in the same gas environment as the main electrodes that may take different forms, shapes and locations. | 2009-03-19 |
20090072738 | PLASMA DISPLAY APPARATUS - A display apparatus includes a display panel and a chassis base for supporting the display panel. The chassis base has a plurality of metallic plates on a common plane and an electrically insulating connector between edges of a pair of adjacent metallic plates. | 2009-03-19 |
20090072739 | Plasma display panel and method of forming electrode thereof - A method of forming an electrode of a plasma display panel capable is developed in order to prevent short circuit between electrodes, and a plasma display panel manufactured according to the method. | 2009-03-19 |
20090072740 | Hid lamp with rapid relight aid - The restrike time for re-light up of an arc discharge lamp may be decreased by including at least one refractory bimetallic start up electrode that provides a shorter arc path intermediate the main arc path in a cool state, but when heated withdraws to have a relatively longer arc path. The longer arc path in the hot state results in a relatively higher path impedance that can be used by itself or in combination with a supplemental impedance device to extinguish the starting arc in favor of the main arc. The withdrawn bimetallic starting electrode then does not interfere with the main arc function. | 2009-03-19 |
20090072741 | CERAMIC METAL HALIDE LAMP HAVING RATED LAMP WATTAGE OF GREATER THAN OR EQUAL TO 450 W - To provide a ceramic metal halide lamp having a rated lamp wattage of not less than 450 W, which will not cause flicker due to instable arc during operating of the lamp and early blacking of an arc tube. In a metal halide lamp having a rated lamp wattage of greater than or equal to 450 W, which includes: a translucent ceramic arc tube enclosure including: a main tube inside which a discharge space is formed; and two narrow tubes having smaller diameter than the main tube, each connected to either end of the main tube; two electrodes; and a metal halide provided inside the arc tube enclosure, in which one of the two electrodes is disposed so that it protrudes inside the main tube from inside of one of the two narrow tubes, and the other one of the two electrodes is disposed so that it protrudes inside the main tube from the other one of the two narrow tubes, and when the rated lamp wattage is denoted by W (watt), an inside diameter of the main tube by D (mm), an electrode protruding length which is the distance from boundary between the main tube and the narrow tubes to an end of the electrode by L (mm), and the distance between ends of the two electrodes by E (mm), a bulb wall loading G (watt/cm | 2009-03-19 |
20090072742 | LIGHT EMITTING UNIT AND CONDUCTIVE DEVICE THEREOF - A light-emitting unit includes a light-emitting component, a conductive device and a power source. The light-emitting component includes at least one end. The conductive device includes a tubular body having an opening and detachably telescoped to the end of the light-emitting component, and at least one abutting portion protruding toward the light-emitting component for abutting against the light-emitting component. The conductive device is utilized to excite the light-emitting component to emit lights via the power source. | 2009-03-19 |
20090072743 | ELECTRIC DISCHARGE LAMP - An electric discharge lamp comprising: —a translucent ceramic lamp vessel; —a first and a second current conductor, each supporting an electrode in the lamp vessel; —an ionizable filling comprising a rare gas and metal halide in the lamp vessel; at least the first current conductor being halide-resistant, characterized in that the first current conductor forms an end cap of the lamp vessel, wherein said end cap is made of a metal selected from the group consisting of molybdenum, tungsten, iridium, rhodium, and rhenium, or an alloy thereof, and wherein said end cap is sealed onto the lamp vessel provided with a cermet layer comprising 10-60 vol. % molybdenum and 90-40 vol. % Al | 2009-03-19 |
20090072744 | PARTICLE ACCELERATION DEVICES AND METHODS THEREOF - A particle accelerator device structured and arranged for use in a subterranean environment. The particle accelerator device comprising: one or more resonant Photonic Band Gap (PBG) cavity, the one or more resonant PBG cavity is capable of providing localized, resonant electro-magnetic (EM) fields so as to one of accelerate, focus or steer particle beams of one of a plurality of electrons or a plurality of ions. Further, the particle accelerator device may provide for the one or more resonant PBG cavity to include a geometry and one or more material that is optimized in terms of RF power losses, wherein the optimization provides for a PBG cavity quality factor significantly higher than that of an equivalent normally conducting pill-box cavity. | 2009-03-19 |
20090072745 | Lighting Fixture with EMI/RFI Electrically Conductive Shielding Grid - A lighting fixture for use in an environment which requires protection from EMI/RFI emissions. The fixture comprises a body forming a light-emitting opening, lighting components including at least one lamp in the body, a lens covering the opening, and a conductive grid across the opening, the grid being separate from the lens, electrically connected to the body, and positioned between the lighting components and the opening. | 2009-03-19 |
20090072746 | RESONANT IGNITOR CIRCUIT FOR LAMP WITH A VARIABLE OUTPUT CAPACITANCE BALLAST - A resonant igniter circuit ( | 2009-03-19 |
20090072747 | Super Cooler for a Heat Producting Device - A super cooler device including a thermo electric cooler on a digital micro mirror device. | 2009-03-19 |
20090072748 | Backlight control circuit having a duty ratio determining unit and method for controlling lighting of a lamp using same - An exemplary backlight control circuit includes a lamp, a transformer, and a lamp driving circuit. The lamp driving circuit includes a duty ratio determining unit, a duty ratio adjusting unit, and an output unit. The output unit is configured for outputting two pulse signals having a same duty ratio and opposite phases to the transformer. The transformer is configured for generating an alternating voltage for driving the lamp. The duty ratio determining unit is configured for determining if the duty ratio of the pulse signals is in a predetermined duty ratio range. The duty ratio adjusting unit is configured for adjusting the duty ratio of the pulse signals in order to adjust a brightness of the lamp. | 2009-03-19 |
20090072749 | Image Intensifier with Adjustable Figure of Merit - An image intensifier such as a night vision goggle includes a tube module and a power supply module. The image quality may be characterized by a figure known as the “Figure of Merit” (FOM), which is an arithmetic product of screen resolution and signal-to-noise ratio (SNR). Both resolution and SNR are affected by the voltage supplied by the power supply module. By providing a power supply module with an adjustable voltage, the FOM may be varied. The adjustment mechanism may then be rendered tamper resistant, thereby enabling the FOM to be permanently reduced for devices intended for export. | 2009-03-19 |
20090072750 | DENSE ARRAY OF FIELD EMITTERS USING VERTICAL BALLASTING STRUCTURES - A field emitter array structure is provided. The field emitter array structure includes a plurality of vertical un-gated transistor structures formed on a semiconductor substrate. The semiconductor substrate includes a plurality of vertical pillar structures to define said un-gated transistor structures. A plurality of emitter structures are formed on said vertical un-gated transistor structures. Each of said emitter structures is positioned in a ballasting fashion on one of said vertical un-gated transistor structures so as to allow said vertical ungated transistor structure to effectively provide high dynamic resistance with large saturation currents. | 2009-03-19 |
20090072751 | Light emitting device - A light emitting device includes an optical cavity in resonance with an optical transition of a material disposed in the cavity. The device can form an exciton-polariton state. | 2009-03-19 |
20090072752 | LIGHT EMITTING DEVICE - The invention relates to a light emitting device ( | 2009-03-19 |
20090072753 | FLUORESCENT TUBE, A METHOD OF DRIVING THE FLUORESCENT TUBE, AN ILLUMINATING DEVICE FOR DISPLAY DEVICE, AND A DISPLAY DEVICE HAVING THE ILLUMINATING DEVICE - A fluorescent tube in which no luminance gradient in the longitudinal direction occurs even when a one-side high-voltage driving method is used, a method of driving the fluorescent tube, an illuminating device for display device, and a display device having the illuminating device are provided. The fluorescent tube for one-side high-voltage driving is arranged behind a display panel via optical sheets. An internal diameter of the fluorescent tube is arranged to become larger gradually toward an electrode part at a high-voltage driving side, which prevents the occurrence of the luminance gradient in the longitudinal direction when a one-side high-voltage driving method is used. | 2009-03-19 |
20090072754 | DC-AC CONVERTER, CONTROLLER IC THEREFOR, AND ELECTRONIC APPARATUS UTILIZING SUCH DC-AC CONVERTER - An inverter has a semiconductor switch circuit provided in the primary circuit of a transformer. The switch circuit is controlled by a PWM circuit. The switch circuit is operated on the basis of an intermittent-operation signal having an ON state and OFF state to: set an error signal to a substantially zero level during OFF periods; gradually increase the error signal upon transition from an OFF state to an ON state; and gradually decrease the error signal upon transition from an ON state to an OFF state. Each ON phase of the intermittent operation is slowly started and slowly ended through charging and discharging of a capacitor provided in a feedback circuit. This enables concomitant application of constant-current control and intermittent-operation control to the inverter, which in turn provides a broad range of power that can be supplied to a load, significantly reduces hamming of the transformer, and prevents over-current from occurring in the inverter. | 2009-03-19 |
20090072755 | LIGHT-EMITTING SEMICONDUCTOR DEVICE DRIVER AND METHOD - An electronic device includes circuitry for driving a light-emitting diode (LED) or other light-emitting semiconductor device. The circuitry includes a first switch (NM | 2009-03-19 |
20090072756 | CONVERTER CIRCUIT CAPABLE OF SELF-REACTIVATION AND RELATED DISPLAY DEVICE - A converter circuit includes a detecting circuit, a PWM circuit, a control circuit, a switching circuit, and a power converting circuit. The detecting circuit generates a first or a second control signal based on the voltage level of a load. The PWM circuit outputs a power control signal when receiving the first control signal, or stops operations when receiving the second control signal. The control circuit outputs a backlight-off signal when receiving the second control signal, and outputs a backlight-on signal after outputting the backlight-off signal. The switching circuit stops operations when receiving the backlight-off signal, and reactivates the PWM circuit after receiving the backlight-on signal. The power converting circuit provides the voltage for driving the load based on the power control signal. | 2009-03-19 |
20090072757 | METHOD OF DRIVING A LIGHT EMITTING DEVICE - The present invention is characterized in that a transistor with its L/W set to 10 or larger is employed, and that |V | 2009-03-19 |
20090072758 | Current-driven light-emitting display apparatus and method of producing the same - A method for producing an organic EL display device is disclosed. The display device comprises a substrate, a transistor disposed on the substrate, a flattened inter-layer insulation film covering the transistor, a pixel electrode, and an organic EL layer. | 2009-03-19 |
20090072759 | Method for dimming multiple lamps - A method for dimming multiple lamps includes: getting a brightness range of a lighting area which has at least two light sources, getting a dimming range of the light sources, setting the brightness of the lighting area, determining the dimming value of each light source, and defining different dimming values of at least two light sources. The luminosity adjustment upper limit and lower limit of the individual light sources are obtained. After the brightness of the lighting area is set the dimming value of each light source is determined to form the brightness of the lighting area through the two light sources of different brightness. | 2009-03-19 |
20090072760 | Luminous chain with distributed driver circuit - The luminous chain includes a plurality of luminous modules, wherein at least two of the luminous modules include at least one set including at least one light source and one driver circuit for driving the at least one light source, and the driver circuits of one set of the respective luminous modules are electrically connected in parallel with one another, and the light sources of the one set of the respective luminous modules are electrically connected in series with one another, and the driver outputs of the driver circuits are combined at a node for jointly supplying current to all of the light sources of the one set. | 2009-03-19 |
20090072761 | SWITCHING DEVICE FOR DRIVING LED ARRAY BY PULSE-SHAPED CURRENT MODULATION - A circuit drives an LED array and controls the brightness of the LED array by regulating the current flowing through the array. The LED array is driven by a pulse-shaped current of which the mean value is regulated with at least one or two of the following types of modulation: frequency modulation, pulse-width modulation, and amplitude modulation. | 2009-03-19 |
20090072762 | Backlight control circuit and method for driving same - An exemplary backlight control circuit includes a transformer, a control circuit, a lamp. The control circuit and the transformer form an inverter circuit to providing an alternating current (AC) voltage for driving the lamp. When the backlight control circuit works in a startup mode, the backlight control circuit defines a first current path including the lamp and the first current path forms a first resonant circuit. When the backlight control circuit works in an operation mode, the backlight control circuit defines a second current path including the lamp and the second current path forms a second resonant circuit. The first and second resonant circuits have different resonant frequencies from each other. | 2009-03-19 |
20090072763 | Controller for multiple circuits of display lighting - A method for controlling a plurality of light sources. Control signals corresponding to notes of a music file are generated to enable selected ones of a plurality of receptacles to be powered. The plurality of receptacles comprises a first plurality of receptacles and a second plurality of receptacles, and the first plurality of receptacles are powered more frequently than the second plurality of receptacles. The plurality of receptacles is adapted to supply power to the plurality of light sources. A pleasing twinkling effect can be created even if light sources are not coupled to one of the plurality of receptacles. | 2009-03-19 |
20090072764 | LIGHTING CONTROLLING DEVICE OF VEHICLE LIGHTING EQUIPMENT - A lighting controlling device of vehicle lighting equipment includes switching regulators for supplying a current to a plurality of semiconductor light sources respectively; a plurality of current driving portions, having switching elements connected to the semiconductor light sources for controlling ON/OFF of the semiconductor light sources, for current-driving the semiconductor light sources at a maximum current value or a current value smaller than the maximum current value in response to respective operating states of the switching elements; current setting portion for setting a maximum current value applied in current-driving the current driving portion or a maximum current value of currents fed from the switching regulators to the semiconductor light sources separately in plural stages in response to respective assignments; and a controlling portion for controlling the current driving portion and the current setting portion in response to a plurality of lighting modes based on communication information from an external device. The controlling portion assigns the maximum current value corresponding to each lighting mode to the current setting portion for every lighting mode, and assigns ON/OFF periods of the switching elements to the current driving portion for every lighting mode. | 2009-03-19 |
20090072765 | Method for Controlling Multi-colored Light Fixtures - This invention is a control panel and a compatible circuit which is used for controlling the color and intensity of multi-colored light fixtures. The panel consists of a saturated color mixing control source, a white level control source, and a brightness control source. The circuit consists of a control panel interface that converts and processes the control panel inputs into signals that can be used to control multi-color lighting fixtures. | 2009-03-19 |
20090072766 | Multi-way sensor switch - A system for controlling a load circuit is disclosed. The system includes a plurality of multi-way sensor switches for mounting in an electrical boxes and coupling to the load circuit. Preferably, each of the multi-way sensor switches includes a tactile switch for manually opening and closing the load circuit load circuit, a built-in sensor for automatically opening and closing the load circuit in response to a level of detected motion and a micro-processor for generating status signals. The status signals are transmitted between each of the multi-way sensor switches over a traveler wire that is electrically coupled to each of the multi-way sensor switches. The micro-processor then uses the status signals to synchronize the operation of each of the multi-way sensor switches to allowing the multi-way sensor switches to operate in a true three-way fashion. | 2009-03-19 |
20090072767 | MODULATOR FOR CIRCULAR INDUCTION ACCELERATOR - Described herein is a modulator circuit for generating discrete energy pulses in a device. The circuit includes a high voltage power source intermittently coupled to a saturable first inductor, a second inductor and a capacitor coupled in parallel between the high voltage power source and the saturable first inductor and second inductor. When the first inductor is unsaturated, its inductance is high and it isolates the capacitor from the second inductor. When the first inductor saturates, the inductance collapses and the capacitor discharges a high energy pulse into the second coil. By controlling the time to saturation, the timing of the pulses is controlled. The modulator circuit is effective to control pulses applied to a circular induction accelerator, such as a Betatron. | 2009-03-19 |
20090072768 | USE OF AN ACCELEROMETER TO CONTROL VIBRATOR PERFORMANCE - A mobile device includes a vibrator, an accelerometer that senses a parameter of rotation, and a processor. The vibrator includes a drive motor and a drive circuit. The accelerometer senses a speed of rotation of the vibrator. The processor analyzes the sensed speed of rotation and generates a drive voltage that is received by the drive circuit to adjust the drive motor to produce a pre-determined, desired rotational speed. In another embodiment, the accelerometer senses an amplitude of a vibration produced by the vibrator. The processor analyzes the sensed amplitude of a vibration and generates a drive voltage that is received by the drive circuit to adjust the drive motor to produce a pre-determined, desired vibration amplitude. The processor may also compare the sensed parameter with a pre-determined desired parameter of rotation and generate a signal responsive to a result of the comparison and based on stored vibrator calibration curves. | 2009-03-19 |
20090072769 | APPARATUS AND METHOD FOR CONTROLLING OR REGULATING AN OSCILLATING DEFLECTABLE MICROMECHANICAL ELEMENT - The invention relates to an apparatus and to a method for controlling or regulating the deflection of micromechanically manufactured deflectable elements which, driven electrostatically, are deflected in an oscillating manner. It is the object of the invention to provide a possibility with which a much larger deflection range can be utilized and in so doing the required voltage potential difference for the electrostatic drive of a deflection can be kept small and the occurrence of the pull-in effect can be avoided. In accordance with the invention, a deflectable element is present which is held at a frame element by at least one spring element and which can be deflected using an electrostatic drive. The deflection can be achieved by means of at least one counter-electrode and the deflectable element usable as an electrode. In addition, at least one detector is present which is suitable for the contactless detection of at least one deflection position and which is connected to an electronic evaluation and control unit to influence the electrical voltage potential difference between the deflectable element and the counter-electrode(s) in dependence of a specific deflection position. | 2009-03-19 |
20090072770 | POWER INVERTER MODULE THERMAL MANAGEMENT - According to an example embodiment, a method is provided for limiting an operational temperature of a motor. The method includes generating a maximum allowable current I* | 2009-03-19 |
20090072771 | Magnetic motor generator having a floating flywheel - A magnetic motor generator that produces electric power by rotating a one piece magnetic floating flywheel assembly that is operated by a linear induction motor and repelled upward by a stationary natural magnet. The floating flywheel assembly magnetic axel rotates inside magnetic collar bearings, which have repelling stationary magnets to center the axel at speed. The floating flywheel assembly rotors move inside generator stators to generate electric power. The floating flywheel assembly has no physical contact with other components to prevent bearing losses at speed. A timing computer controls the operation of the linear induction motor, assesses the speed of the floating flywheel assembly and fires only when necessary to maintain rotation. The moving components are enclosed in a vacuum chamber to prevent wind resistance, or windage losses at speed. Surplus electric power can ether be stored/used by the system or used to supply a load. | 2009-03-19 |
20090072772 | DIESEL-ELECTRIC DRIVE SYSTEM HAVING A SYNCHRONOUS GENERATOR WITH PERMANENT MAGNET EXCITATION - The invention relates to a diesel-electric drive system comprising a permanently excited synchronous generator ( | 2009-03-19 |
20090072773 | MOTOR DRIVING APPARATUS AND METHOD FOR CONTROL OF MOTOR REVOLUTION - This invention provides a motor driving apparatus that made it possible to reduce torque ripples including those attributed to load variation of the motor and an associated method for control of motor revolution. An output stage to a multiphase DC motor is comprised of power elements to supply output voltages to multiphase coils and a predriver to supply drive voltages to the power elements. A resistor means detects a current flowing through the power elements. A supply current detector detects a voltage signal produced across the resistor means as a supply current, using a high-speed ADC and a moving average filter. An output controller generates a PWM signal with a frequency lower than the frequency of the high-speed ADC so that the current detected by the supply current detector conforms to a current signal indicating a motor revolving speed and transfers the PWM signal to the output stage. | 2009-03-19 |
20090072774 | DISPLACEMENT SENSING METHOD AND MOTOR CONTROL APPARATUS - A displacement sensing method of the present invention includes the steps of superimposing a predetermined signal on a torque command to supply a drive torque to a motor, measuring an amplitude spectrum ratio between the drive torque in superimposing the predetermined signal on the torque command and a motor angle measured by a displacement sensor, generating correction data for evening out the amplitude spectrum ratio, and correcting the measured motor angle so that the motor angle measured by the displacement sensor is equal to an actual motor angle using the correction data. | 2009-03-19 |
20090072775 | METHOD AND APPARATUS FOR QUIET FAN SPEED CONTROL - An AC motor speed controller includes a plurality of capacitors that may be selectively switched, by means of controllably conductive switches, into series electrical connection with an AC motor and an AC voltage source to control the speed of the motor. To change the speed of the motor, a control circuit renders a first switch conductive, in response to a first detected AC voltage zero crossing, to charge a first capacitor to a predetermined voltage. The control circuit then renders a second switch conductive, in response to a subsequent second detected AC voltage zero crossing, to charge a second capacitor to the predetermined voltage. The control circuit then renders both switches simultaneously conductive at a predetermined time after a subsequent third detected AC voltage zero crossing. The capacitors will thereby be charged to the same voltage prior to being switched into series with the motor, thereby resulting in reduced acoustic noise when changing motor speeds. | 2009-03-19 |
20090072776 | Apparatus and Method for Controlling Hybrid Motor - The present invention relates to an apparatus and method for controlling a hybrid motor, and more particularly, to an apparatus and method for controlling a hybrid motor, which uses a permanent magnet instead of a field coil for a rotor, winds a coil round a stator in a multi-phase independent parallel manner, fixes a rectifying type encoder to the rotor and connects a sensor to a driving circuit to smoothly start and rotate the hybrid motor, simplifies the configuration of the hybrid motor and reduce the manufacturing cost of the hybrid motor The apparatus for controlling a hybrid motor having a multi-phase independent parallel stator coil comprises: an encoder attached to a rotor of the hybrid motor and operated in cooperation with a sensor in order to sense the pole of the rotor; the sensor for outputting a sensor signal indicating the polo of the rotor, sensed by the encoder; a speed input unit for generating a speed instruction signal for driving the motor; a power switching circuit for generating signals for driving the motor; a drive module for receiving the speed instruction signal and the sensor signal and outputting the speed instruction signal synchronized with the sensor signal as a signal for driving the motor; a power supply for applying a DC voltage to the power switching circuit; and a logic power supply for converting the DC voltage received from the power supply into a logic voltage and applying the converted logic voltage to the drive module. When the motor has n phases, the motor includes n power switching circuits and n drive modules. | 2009-03-19 |
20090072777 | FIELD WINDING TYPE OF SYNCHRONOUS ROTARY ELECTRIC MACHINE - A speed-variable field winding type of synchronous rotary electric machine is provided, where a rotor with plural-phase windings faces a rotor with a field winding. A field current is limited to flow through the field winding in one direction thereof. A fundamental component of armature current, which corresponds a synchronizing current for producing a rotating magnetic field rotating in sync with the rotation of the rotor, is supplied to the armature windings. The synchronizing current is adjusted in frequency to change a rotor rotation speed. A pulsed rotor exciting current is supplied to the armature windings. The exciting current causes the field winding to induce the field current only during a specified current-supply duration shorter than a one cycle of the synchronizing current. The number of current-supply times for the exciting current, per electrical angle 2π and per phase, has a positive correlation with the cycle of the synchronizing current. | 2009-03-19 |
20090072778 | LOW SPEED SYNCHRONOUS MOTOR DRIVE OPERATION - Methods and apparatus are provided for providing a torque boost in an electric motor system at low speeds. The electric motor system comprises an alternating current (AC) synchronous electric motor, an inverter and a controller. The inverter is coupled to the AC synchronous electric motor and provides electric control therefore. The controller is coupled to the inverter and provides operational control signals thereto for operation of the electric motor. The controller includes a torque command gain block which modifies a torque command to generate a boosted torque signal in response to a detected speed of the electric motor, the torque command modified to define the boosted torque signal defined in accordance with a torque dependent scaling factor calculated in response to the torque command. | 2009-03-19 |
20090072779 | Low Voltage Energy System - An energy system for transferring energy from a lower voltage energy source, such as a single photovoltaic cell or two photovoltaic cells connected in series, to a higher voltage energy storage, such as a capacitor or one or more batteries. The system uses a controller operating from the higher voltage storage to control a boost converter which transfers energy from the lower voltage source to the higher voltage storage. | 2009-03-19 |
20090072780 | Photovoltaic-Charged Secondary Battery System - The present invention provides a photovoltaic-charged secondary battery system, in which an electrode for optical power generation and an electrode for charging and discharging generated electrical energy are integrated into a single cell structure, and the potential difference between the electrodes is systematically controlled, thus maximizing the conversion efficiency of optical energy, maximizing the utilization rate of cell energy, and extending the life span of the battery. | 2009-03-19 |
20090072781 | POWER SUPPLY DEVICE, SCANNER POWER SUPPLY DEVICE, AND IMAGE FORMING APPARATUS - A power supply device accumulates charges generated by a photovoltaic unit. The power supply device includes a first capacitor having a first capacitance, in which the charges generated by the photovoltaic unit are charged; a second capacitor having a second capacitance that is larger than the first capacitance; and a switching unit that switches between a first connection of connecting the photovoltaic unit to the first capacitor and a second connection of connecting the first capacitor to the second capacitor. | 2009-03-19 |
20090072782 | VERSATILE APPARATUS AND METHOD FOR ELECTRONIC DEVICES - An electronic system which includes a power delivery surface that delivers electrical power to an electrical or electronic device. The power delivery surface may be powered by any electrical power source, including, but not limited to: wall electrical outlet, solar power system, battery, vehicle cigarette lighter system, direct connection to electrical generator device, and any other electrical power source. The power delivery surface delivers power to the electronic device wirelessly. The power delivery surface may deliver power via a plurality of contacts on the electrical device conducting electricity from the power delivery surface, conductively coupling the electronic device to the power delivery surface, inductively coupling the electronic device to the power delivery surface, optically coupling the electronic device to the power delivery surface, and acoustically coupling the electronic device to the power delivery surface as well as any other electrical power delivery mechanism. | 2009-03-19 |
20090072783 | Inductively charged vapor-emitting device - An inductively charged vapor-emitting device for dispensing a volatizable material into the surrounding environment is described. The inductively charged vapor-emitting device includes an inductive coil including a magnetic core mounted in a housing and coupled to at least one rechargeable power source mounted within the housing. The inductive coil configured to inductively receive electric power from a remote power source to recharge the at least one rechargeable power source. | 2009-03-19 |
20090072784 | Inductive charger battery replacement system, device & method - The invention is a device and system for providing power to a portable electronic device. A battery unit includes a rechargeable battery and is configured to be removably secured to a portable electronic device to provide power thereto. A base unit is configured to receive and charge one or more battery units, either alone or with the battery units secured to portable electronic devices. The battery unit includes a battery charge indicator, which can be a visible signal. An optical bath is defined through the base unit to transmit the visible signal of the battery unit to a base unit battery charge display. | 2009-03-19 |
20090072785 | BATTERY PACK - A battery pack includes at least one battery cell and a base and a cover, together adapted to house the at least one battery cell. A plurality of linking holes are located on at least one first side surface of one of the base or the cover, each linking hole defined by a periphery, wherein at least a portion of the periphery includes a reinforcement that is thicker than the thickness of the first side surface. A plurality of linking protrusions are located on at least one second side surface of the other of the base or the cover, each of the plurality of linking protrusions adapted to mate with a corresponding linking hole, thereby holding the base and cover in engagement with one another. | 2009-03-19 |
20090072786 | Cradle for differently sized portable electronic devices - A cradle for containing a portable electronic device of the present invention has a main body and a clip. The main body is used for enabling the bottom of the portable electronic device to lean on the main body. The clip has a rotating member and a pressing member. The rotating member is pivoted on the main body, the pressing member is detachably connected to the rotating member, and the pressing member presses against the top portion of the portable electronic device. | 2009-03-19 |
20090072787 | REPLACEABLE RECHARGEABLE BATTERY UNIT FOR A POWER TOOL, POWER TOOL, AND CHARGER - A power tool system has a power tool, a replaceable rechargeable battery unit for the power tool, and at least one coupling unit for charging the battery unit while being replaceably connected to the power tool; also a replaceable rechargeable battery unit for a power tool, a charger for charging a replaceable rechargeable battery unit for a power tool, and a power tool with a replaceable rechargeable battery unit are provided. | 2009-03-19 |
20090072788 | Method for Managing a Bank of Rechargeable Batteries Using the Coup De Fouet Effect on Charging - The batteries of at least one battery subset are partially and preferably simultaneously charged; during this partial charging, electrical parameters representative of a coup de fouet effect on charging are measured to enable the extent of discharge of each of the batteries of the subset to be analyzed; the batteries are then charged sequentially with an order of priority that depends on the extent of discharge of the different batteries; priority is preferably given to charging the most extensively discharged batteries. | 2009-03-19 |
20090072789 | Multiple Function Current-Sharing Charging System and Method - Multiple function current-sharing charging systems and methods are provided. Where first and second rechargeable power supplies are connected to a charging system, a first charging current is provided to the first rechargeable power supply and a second charging current is provided to the second rechargeable power supply. Upon detection of a predetermined charge level of one of the rechargeable power supplies, a third charging current is provided to the first rechargeable power supply and a fourth charging current is provided to the second rechargeable power supply. | 2009-03-19 |
20090072790 | LOW SIDE N-CHANNEL FET PROTECTION CIRCUIT - The present invention relates to a battery protection circuit for protecting a plurality of batteries connected in series. The battery protection circuit includes: a controller for monitoring the batteries and outputting control signals based on predetermined conditions associated with the batteries; a first N-channel MOSFET and a second N-channel MOSFET coupled in a common-drain configuration in a low-side path, wherein at least one of the first and second N-channel MOSFETs turns off in response to the control signal received from the controller when at least one of the predetermined conditions is detected; and a gate protection circuit for preventing gate-to-source voltages of the first and second N-channel MOSFETs from exceeding a predetermined gate-to-source voltage level. | 2009-03-19 |
20090072791 | Electric Storage Device - Electric storage device is provided which is capable of smoothly charging storage elements and reliably detecting an overvoltage of each of the storage elements. Electric storage device includes charging/discharging limiting circuit. Charging/discharging limiting circuit includes charge element, discharge element, control unit, charging current detection unit, voltage detection unit, valuable reference voltage source, and voltage comparison unit. A magnitude of valuable reference voltage source that is connected to an input terminal on a first side of voltage comparison unit is adjusted by charging current detection unit. Detection signal from the voltage detection unit is given to an input terminal on a second side of voltage comparison unit. | 2009-03-19 |
20090072792 | INTERNAL STATE ESTIMATING DEVICE OF SECONDARY BATTERY - An internal-state estimating device of a secondary battery has an electric current detecting means, a secondary-battery terminal voltage detecting means, a running state judging means, an electric-current random-noise impressing means and a secondary-battery internal-state estimating means. The electric current detecting means detects an electric current for a vehicle drive motor and a load-motor as one of a total current thereof and each current thereof. The running state judging means judges a substantially constant vehicle-speed running state of a motor vehicle. The electric-current random-noise impressing means superimposes a random noise on a load-motor electric current when the running state judging means judges the substantially constant vehicle-speed running state. The secondary-battery internal-state estimating means estimates an internal-state based on the terminal voltage and the current including the load-motor current and superimposed with the random noise at the substantially constant vehicle-speed running state. | 2009-03-19 |
20090072793 | Rechargeable battery assembly and power system using same - A rechargeable battery, battery set or battery pack having a circuit or a plurality of circuits for providing self-discharging thereof electrically connected in parallel are used to form rechargeable battery assemblies and electric power supply systems for use in electric and hybrid vehicles and the like. | 2009-03-19 |
20090072794 | Apparatus for charging on-vehicle battery and apparatus for controlling generating operation of on-vehicle generator - An on-vehicle charging apparatus charges a battery mounted on the vehicle. In the apparatus, a generator generates electric power to output voltage for charging the battery and a controller, which is located outside the generator, outputs a pulse signal for controlling a generated state of the generator. A reception device receives the pulse signal outputted from the controller. The received signal is subjected to filtering at a filter, where pulse signals whose cycles are different from a predetermined cycle are removed. Further, using the outputted pulse signal from the filter, a duty ratio of the pulse signal is calculated. A voltage outputted from the generator is regulated based on the calculated duty ratio. | 2009-03-19 |
20090072795 | TEMPERATURE SENSING DEVICE IN AN INTEGRATED CIRCUIT - A temperature sensing device can be embedded in a memory circuit in order to sense the temperature of the memory circuit. One oscillator generates a temperature variable signal that increases frequency as the temperature of the oscillator increases and decreases frequency when the temperature of the oscillator decreases. A temperature invariant oscillator generates a fixed width signal that is controlled by an oscillator read logic and indicates a temperature sense cycle. An n-bit counter is clocked by the temperature variable signal while the fixed width signal enables/inhibits the counter. The faster the counter counts, the larger the count value at the end of the sense cycle indicated by the fixed width signal. A larger count value indicates a warmer temperature. A smaller count value indicates a colder temperature. | 2009-03-19 |
20090072796 | USB Charger Circuit - A USB charger circuit includes at least a converter, a control circuitry, a first resistor, a second resistor, an error amplifier, a sense resistor and a diode. The converter has a transistor. The control circuitry is coupled to the transistor. The control circuitry is used for producing a drive signal to the transistor. The first resistor is connected between the output node of the converter and a first node. The second resistor is connected between the first node and a second node. The error amplifier is coupled to receive a voltage divided by the first resistor and the second resistor to compare to a reference voltage. The sense resistor is connected between the second node and ground. The diode is connected between the output node of the converter and a first node. | 2009-03-19 |
20090072797 | LOAD-OFF TRANSIENT ACCELERATION GENERATOR CONTROL SYSTEM - An electric generator is operated under conditions in which rapid off-loading may occur. A generator control unit (GCU) employs a detector to detect rates of change of output of the generator. In response to a rapid change of output, e.g. an off-loading, an overvoltage protection system is activated. Excess energy stored is an excited winding is directed into an impedance circuit thus precluding overvoltage that may have been produced by the excess energy. | 2009-03-19 |
20090072798 | APPARATUS AND METHOD FOR APPLYING HIGH VOLTAGE WITH HIGH FREQUENCY - An apparatus and a method for applying high voltage with high frequency. The apparatus includes a power generator for generating electric power with predetermined frequency, a voltage transformer receiving the electric power generated by the power generator, amplifying voltage of the electric power received, and applying the amplified voltage to a load, and an impedance matcher connected between the power generator and the voltage transformer to match impedances of the power generator and the voltage transformer to thereby transmit the electric power to the voltage transformer. High voltage with high frequency is obtained by transmitting the electric power generated from the power generator to the load without reflecting loss while conducting an impedance matching, and amplifying the voltage applied to the load using the coupled inductor and LC resonance. | 2009-03-19 |
20090072799 | Voltage generator - A voltage generator is provided. The voltage generator includes a voltage pump and a voltage controller. The voltage pump generates a target voltage using a clock signal. The voltage controller compares a temporary voltage input from the voltage pump with a reference voltage to generate a control signal controlling the voltage pump. The voltage controller includes a string of a plurality of resistors connected in series to change a level of the temporary voltage to a voltage level of a corresponding comparison voltage. When the plurality of resistors are in a string, a resistance of a resistor closest to one end of the string is greater than resistances of other resistors of the string. The voltage controller may further include a jumping unit controlling connection or disconnection of two arbitrary nodes among first to n-th nodes (where n is a natural number) defined as connection points of the adjacent resistors of the string. Accordingly, the voltage generator can generate a voltage of with a more accurate level. | 2009-03-19 |
20090072800 | Circuit and Method for a Fully Integrated Switched-Capacitor Step-Down Power Converter - A circuit and method for providing a fully integrated DC-DC converter using on-chip switched capacitors is disclosed. A switched capacitor matrix is coupled as a digitally controlled transfer capacitor. A pair of non-overlapping, fixed frequency clock signals is provided to a switched capacitor circuit including the switched capacitor matrix and a load capacitor coupled to the output terminal. A DC input voltage supply is provided. A hysteretic feedback loop is used to control the voltage at the output as a stepped-down voltage from the input by digitally modulating the transfer capacitor using switches in the switch matrix to couple more, or fewer, transfer capacitors to the output terminal during a clock cycle. A coarse and a fine adjustment circuit are provided to improve the regulation during rapid changes in load power. A method of operating the regulator is disclosed. | 2009-03-19 |
20090072801 | VOLTAGE GENERATING CIRCUIT - A voltage generating circuit according to the present invention comprises a voltage converter which voltage-converts a reference voltage, and an output unit which impedance-converts the voltage outputted from the voltage converter. The voltage converter and the output unit each comprise a low-voltage-side power supply and a high-voltage-side power supply. A voltage level of the high-voltage-side power supply in the output unit is set to be higher than a voltage level of the high-voltage-side power supply in the voltage converter. | 2009-03-19 |
20090072802 | VOLTAGE GENERATING APPARATUS, CURRENT GENERATING APPARATUS, AND TEST APPARATUS - There is provided a voltage generating apparatus that outputs a power source voltage from a voltage outputting terminal. The apparatus includes a voltage outputting section that outputs the power source voltage according to a current or voltage to be input, a first differential amplification section that compares the power source voltage and a preset first reference voltage to output a first control current or voltage reducing the power source voltage output from the voltage outputting section when the power source voltage is larger than the first reference voltage and output the first control current or voltage raising the power source voltage output from the voltage outputting section when the power source voltage is smaller than the first reference voltage, a current detector that detects a detecting voltage according to a power source current output from the voltage outputting terminal, a second differential amplification section that compares the detecting voltage detected from the current detector and a second reference voltage to output a second control current or voltage reducing the power source voltage when a value obtained by subtracting the second reference voltage from the detecting voltage is larger, an addition section that inputs a current or voltage obtained by adding the first control current or voltage and the second control current or voltage into the voltage outputting section, and a third differential amplification section that supplies a voltage obtained by amplifying a difference voltage obtained by subtracting the detecting voltage from a preset third reference voltage to the second differential amplification section as the second reference voltage. | 2009-03-19 |
20090072803 | INRUSH CURRENT CONTROL - One embodiment of the present invention includes a power supply system. The power supply system comprises a variable voltage source configured to provide and incrementally increase a control voltage associated with a pass-transistor. The power supply system also comprises an inrush current monitor configured to monitor a current-flow through the pass-transistor. The power supply system further comprises a voltage control circuit configured to halt the incremental increase of the control voltage in response to the current-flow exceeding a predetermined current limit. | 2009-03-19 |
20090072804 | TRIMMING CIRCUIT - A trimming circuit which comprises a shunt circuit having two shunt resistors and two shunt ON/OFF switches and connected in parallel with a series resistor circuit. The middle point of the shunt circuit is connected to a connection point of the series resistor circuit, the resistance ratio thereof with respect to the connection point being equal to the resistance ratio of the shunt resistors. | 2009-03-19 |
20090072805 | SWITCHING REGULATOR AND METHOD OF ADJUSTING PULSE WIDTH - A switching regulator switches according to an input signal and performs PWM control with a PWM pulse signal. The switching regulator includes a pulse width limiting circuit that includes a reference current source, a constant current source, a capacitor, an inverting block including a first switch circuit to supply a constant current to the capacitor and a second switch circuit to discharge a voltage across the capacitor to a ground, a determination circuit to determine whether the voltage across the capacitor becomes a given value or greater, and a limiting circuit to limit a pulse width of the PWM pulse signal. The inverting block further includes either a third switch circuit configured to pass the given constant current or a switching control circuit configured to cause the first and second switch circuits to pass the given constant current regardless of the PWM pulse signal. | 2009-03-19 |
20090072806 | ELECTRONIC DEVICE HAVING MULTI-POWER SOURCE INTEGRATED CIRCUIT - An electronic device includes: an integrated circuit having a first circuit part, a second circuit part, a first power source line of the first circuit part, a second power source line of the second circuit part, and a coupling switch coupling the first power source line and the second power source line; a power source supply part which generates a power source to be supplied to the first and second circuit parts and which has a power source supply control circuit controlling the supply of power source to the second circuit part; and a power source control part that controls the power source supply control circuit and the coupling switch, wherein the power source control part controls the power source supply control circuit so as to supply a power source in accordance with the operating state of the second circuit part and closes the coupling switch. | 2009-03-19 |
20090072807 | ADAPTIVE PWM PULSE POSITIONING FOR FAST TRANSIENT RESPONSE - An adaptive pulse positioning system for a voltage converter including an adjustable ramp generator, a pulse generator circuit, and a sense and adjust circuit. The adjustable ramp generator has an adjust input and provides a periodic ramp voltage having an adjustable magnitude based on an adjust signal provided to the adjust input. The pulse generator circuit receives the ramp voltage and generates a pulse signal with control pulses for controlling the output voltage of the voltage controller based on the ramp voltage. The sense and adjust circuit senses an output load transient and provides the adjust signal to the adjust input of the ramp generator to adaptively shift the pulse signal in time in response to the output load transient without adding pulses to the pulse signal. | 2009-03-19 |
20090072808 | START-UP CIRCUIT AND METHOD FOR HIGH VOLTAGE POWER DISTRIBUTION CIRCUIT - A start-up circuit for a high voltage power distribution circuit includes a transistor, a current source which generates ramped current, an operational amplifier which is connected between the current source and the transistor and controls the transistor, a capacitor which is fed the generated ramped current from the current source and is charged by the generated ramped current, the capacitor being connected to the non-inverting input of the operational amplifier, and a feedback capacitor connected from the transistor output to the non-inverting input of the operational amplifier, which is fed the generated ramped current from the capacitor and is discharged. The transistor is fully enabled when the feedback capacitor is fully discharged. | 2009-03-19 |