34th week of 2010 patent applcation highlights part 17 |
Patent application number | Title | Published |
20100213810 | LIGHT EMITTING DEVICE PACKAGE - Provided is a light emitting device package. The light emitting device package comprises a substrate, a light emitting device on the substrate, a first heatsink between the substrate and the light emitting device, the first heatsink being at least partially disposed within the substrate to transfer heat generated from the light emitting device, first and second electrodes electrically separated from each other, the first and second electrodes being electrically connected to the light emitting device. | 2010-08-26 |
20100213811 | PACKAGE FOR LIGHT EMITTING ELEMENT AND METHOD FOR MANUFACTURING SAME - The package for a light emitting element according to the present invention comprises a base substrate made of ceramic including glass, and a frame body made of ceramic. The frame body is arranged on a top surface of the base substrate and provided therein with a cavity for accommodating the light emitting element. A part of the glass included in the base substrate is precipitated in an area of the top surface of the base substrate, which is a bottom surface of the cavity, and a crystallinity degree of the precipitated glass is greater than 3%. In the manufacturing method of the package according to the present invention, a ceramic body which is to be the package is fired at a temperature of 840 degrees C. or higher and lower than 950 degrees C. | 2010-08-26 |
20100213812 | SPARK PLUG FOR INTERNAL COMBUSTION ENGINES AND METHOD FOR MANUFACTURING THE SPARK PLUG - A spark plug for internal-combustion engines equipped with a center electrode and a ground electrode is provided. In the spark plug, the ground electrode is fixed to a mount fitting, while the ground electrode has a convex portion. The convex portion is made of a part of base materials of the ground electrode where the part is facing the center electrode, and is projected toward the center electrode. The convex portion has a fusion solidification part made of precious metal materials and a part of the base materials melted together and solidified at least on part of an electric discharge surface facing the center electrode. | 2010-08-26 |
20100213813 | DISPLAY ELEMENT - Disclosed is an electrochromic display element which can achieve a bright white display, a high contrast of white/black display and a full-color display in a simple member structure. In a display element, an electrolyte is contained between counter electrodes. A compound represented by Formula (A) is immobilized on at least one of the counter electrodes, wherein the ratio of the region on which the compound represented by Formula (A) is immobilized to the region on which the compound is not immobilized is 1:4 to 4:1. The electrolyte comprises a metal salt compound. A black display, a white display and a color display having a color other than black are achieved by operating the counter electrodes. In Formula (A), R | 2010-08-26 |
20100213814 | RETAINING SLEEVE WITH RETENTION FEATURE - An automotive headlamp has a light source capsule including a seal area and a cup-shaped retainer affixed to the seal area. A plastic base includes a cavity arrayed about an axis and has a circumferential wall about the cavity. Axial slots are formed in the circumferential wall, the slots forming segments of a circle arching around the axis, the slots being further defined by a pair of oppositely disposed end stops. Metal inserts having base ends sized and shaped to closely fit the axial slots are positioned in the slots, each of the metal inserts having an extended resilient finger each having a retainer engager formed to engage the retainer. Retention features are formed with each of the base ends, the retention features engaging the circumferential wall and increasing the force necessary to remove the inserts. | 2010-08-26 |
20100213815 | HALOGEN LAMP CAPSULE SUPPORT FOR PLASTIC BASE - An automotive headlamp comprising a light capsule including a seal and a retainer affixed to the seal, the retainer having an upper surface, an extending wall having an outer wall and an inner wall. A plastic base includes a cavity arrayed about an axis and has a circumferential wall about the cavity. A pair of axial slots is formed in the circumferential wall form segments of a circle arching around the axis, the slots being further defined by a pair of oppositely disposed end stops. Metal inserts having base ends sized and shaped to closely fit the axial slots are positioned in the slots, each of the metal inserts having extended resilient fingers each having a retainer engager formed to engage a wall of the retainer to support the retainer; and two retention features formed with each of the base ends, the retention features engaging the circumferential wall. | 2010-08-26 |
20100213816 | FLUORESCENT MATERIAL SUBSTRATE AND IMAGE DISPLAY DEVICE, AND METHODS FOR MANUFACTURE THEREOF - Degradation of a fluorescent material used in an image display device provided with an electron emitting device that is caused by heating in the process of manufacturing the device is prevented. | 2010-08-26 |
20100213817 | FLUORESCENT MATERIAL, FLUORESCENT DEVICE USING THE SAME, AND IMAGE DISPLAY DEVICE AND LIGHTING EQUIPMENT - To present a green- to yellow-emitting phosphor whereby a light-emitting device having high color rendering properties and high luminance can be obtained, a light-emitting device employing such a phosphor, and an image display device and a lighting system, containing such a light-emitting device. | 2010-08-26 |
20100213818 | Plasma display panel and method of manufacturing same - A plasma display panel including a front substrate and a back substrate facing each other across a discharge space, and a plurality of row electrode pairs and a plurality of column electrodes extending in a direction orthogonal to the row electrodes. The row electrodes and said column electrodes being provided between the front substrate and the back substrate and forming unit light emission areas at intersections with each other within the discharge space. A crystal having a volumetric particle-size distribution in which a ratio of a crystal having a particle size of 0.7 μm or less is 25% or less, is provided in an area facing the discharge space between the front substrate and the back substrate. | 2010-08-26 |
20100213819 | FLEXIBLE OLED DISPLAY WITH CHIPLETS - A flexible emissive display device having an adhesion layer thinner than the device substrate; a plurality of chiplets adhered to the adhesion layer wherein at least a portion of the adhesion layer extends above a portion of the chiplets; an OLED formed over the adhesion layer and wherein the OLED is thinner than the adhesion layer; a cover thicker than the adhesion layer located over the OLED and adhered to the device substrate; and wherein the chiplets and OLED are at or near the neutral stress plane of the device and the bending radius of the device is less than 2 cm. | 2010-08-26 |
20100213820 | BETA-SIALON PHOSPHOR POWDER AND PRODUCTION METHOD THEREOF - A β-sialon phosphor particle in which Eu (europium) is solid-soluted in a crystal having a β-type Si | 2010-08-26 |
20100213821 | LIGHT EMITTING DEVICE PROVIDED WITH A WAVELENGTH CONVERSION UNIT INCORPORATING PLURAL KINDS OF PHOSPHORS - A light-emitting device includes a light-emitting element for emitting primary light, and a wavelength conversion unit for absorbing part of the primary light and emitting secondary light having a wavelength longer than that of the primary light, wherein the wavelength conversion unit includes plural kinds of phosphors having light absorption characteristics different from each other, and then at least one kind of phosphor among the plural kinds of phosphors has an absorption characteristic that can absorb the secondary light emitted from at least another kind of phosphor among the plural kinds of phosphors. | 2010-08-26 |
20100213822 | PHOSPHOR AND PRODUCTION METHOD THEREOF, CRYSTALLINE SILICON NITRIDE AND PRODUCTION METHOD THEREOF, PHOSPHOR-CONTAINING COMPOSITION, AND LIGHT EMITTING DEVICE, DISPLAY AND ILLUMINATING DEVICE USING THE PHOSPHOR - In order to improve quantum efficiency and/or durability of phosphors, a complex oxynitride phosphor is provided represented by the following formula, which can be obtained by firing a phosphor precursor in the presence of flux. | 2010-08-26 |
20100213823 | INORGANIC ELECTROLUMINESCENT DEVICE - An inorganic electroluminescent device includes; a lower electrode, a dielectric layer which is disposed on the lower electrode and includes a low dielectric material layer and a high dielectric material layer, an inorganic light emitting layer disposed on the dielectric layer, and an upper electrode disposed on the inorganic light emitting layer, wherein the low dielectric material layer has a greater dielectric constant than the high dielectric material layer. | 2010-08-26 |
20100213824 | Phosphorescent Metal Complex Compound Radiation Emitting Component Comprising a Phosphorescent Metal Complex Compound and Method for Production of a Phosphorescent Metal Complex Compound - A phosphorescent metal complex is provided, which comprises a metallic central atom M and at least one ligand coordinated by the metallic central atom M, wherein the one metallic central atom M and the ligand form a six-membered metallacyclic ring. Additionally specified are a radiation-emitting component comprising a metal complex, and a process for preparing the metal complex. | 2010-08-26 |
20100213825 | ELECTROACTIVE MATERIALS - There is provided a compound having Formula I or Formula II: | 2010-08-26 |
20100213826 | Material for organic photoelectric device, and organic photoelectric device thereby - A material for an organic photoelectric device, the material including a compound represented by the following Chemical Formula 1: | 2010-08-26 |
20100213827 | ORGANIC EL DEVICE, ORGANIC EL DISPLAY PANEL, AND METHOD FOR MANUFACTURING THE ORGANIC EL DEVICE - Disclosed is an organic EL device which comprises an organic light-emitting layer having a uniform thickness even though the organic light-emitting layer is formed by a coating method. Specifically disclosed is an organic EL device comprising a substrate, an anode arranged on the substrate, an organic light-emitting layer arranged on the anode, and a bank defining an arrangement region for the organic light-emitting layer. A groove is formed on the upper surface of the bank, and the outer or inner edge of the groove defines the border of the organic light-emitting layer. | 2010-08-26 |
20100213828 | ORGANIC LIGHT EMITTING DIODE DISPLAY - An OLED display that includes a substrate main body, an OLED formed on the substrate main body, a moisture absorbing layer formed on the substrate main body and covering the OLED, an organic barrier layer formed on the substrate main body and covering the moisture absorbing layer, and an inorganic barrier layer formed on the substrate main body and covering the organic barrier layer. | 2010-08-26 |
20100213829 | AMBIPOLAR HOST IN ORGANIC LIGHT EMITTING DIODE - Some embodiments provide a compound represented by Formula 1: | 2010-08-26 |
20100213830 | AMBIPOLAR HOST IN ORGANIC LIGHT EMITTING DIODE - Some embodiments provide a compound represented by Formula 1: | 2010-08-26 |
20100213831 | AMBIPOLAR HOST IN ORGANIC LIGHT EMITTING DIODE - Some embodiments provide a compound represented by Formula 1: | 2010-08-26 |
20100213832 | AMBIPOLAR HOST IN ORGANIC LIGHT EMITTING DIODE - Some embodiments provide a compound represented by Formula 1: | 2010-08-26 |
20100213833 | ORGANIC EL MODULE - An organic electroluminescence (EL) module capable of reducing a processing loss of wiring boards for supplying power to an anode and a cathode is provided. Each wiring board ( | 2010-08-26 |
20100213834 | TRANSITION METAL COMPLEXES COMPRISING BRIDGED CARBENE LIGANDS AND USE THEREOF IN OLEDS - Bridged cyclometalated carbene complexes, a process for preparing the bridged cyclometalated carbene complexes, the use of the bridged cyclometalated carbene complexes in organic light-emitting diodes, organic light-emitting diodes comprising at least one inventive bridged cyclometalated carbene complex, a light-emitting layer comprising at least one inventive bridged cyclometalated carbene complex, organic light-emitting diodes comprising at least one inventive light-emitting layer and devices which comprise at least one inventive organic light-emitting diode. | 2010-08-26 |
20100213835 | LED Diffusion Techniques - An article of manufacture, comprising: at least one point source of light which emits a light beam; and at least one reflective means for diffusing the light and/or converting the light to a different color range. The goal of this invention is to greatly increase the energy efficiency of area lighting by the use of highly efficient beams light sources. | 2010-08-26 |
20100213836 | Character Display Module - A character display module comprises a character organic light emitting diode panel, a printed circuit which is electrically connected to the character organic light emitting diode panel, a drive controller which is disposed on the printed circuit board to drive and control the character organic light emitting diode panel, and a frame which is used to position the character organic light emitting diode panel on the printed circuit board. Therefore, such an arrangement provides a lighter, thinner, high quality, cost-saving and energy-saving character display module. | 2010-08-26 |
20100213837 | PHOTOMULTIPLIER TUBE - Electrons are prevented from being made incident onto an insulation part of a casing between dynodes to improve a withstand voltage. The photomultiplier tube | 2010-08-26 |
20100213838 | PHOTOMULTIPLIER TUBE - Electrons are prevented from being made incident onto an insulation part between dynodes to improve a withstand voltage. The photomultiplier tube | 2010-08-26 |
20100213839 | PLASMA DISPLAY PANEL - To provide a plasma display panel of improving a discharge time-lag. | 2010-08-26 |
20100213840 | DISCHARGE LAMP AND METHOD FOR PRODUCING SAME, LIGHT SOURCE DEVICE, AND PROJECTOR - A discharge lamp includes an arc tube and a boron oxide film formed on an inner surface of the arc tube. | 2010-08-26 |
20100213841 | DISCHARGE LAMP, METHOD FOR PRODUCING SAME, LIGHT SOURCE DEVICE, AND PROJECTOR - A discharge lamp includes an arc tube, a first protection film mainly made of a metal oxide and formed on an inner surface of the arc tube, and a second protection film mainly made of boron nitride or boron oxide and formed on the first protection film. | 2010-08-26 |
20100213842 | METHOD OF DRIVING A FLASH DEVICE AND A NUMBER OF LOADS POWERED BY A BATTERY AND HANDHELD ELECTRONIC DEVICE INCLUDING THE SAME - A handheld electronic device includes a processor; a battery; a flash device; a number of loads powered by the battery; and a flash driver outputting a flash current to the flash device. The processor determines a temperature operatively associated with the battery and different voltage values corresponding to different combinations of the loads as a function of the determined temperature, and starts the flash device at a predetermined flash current value. The flash driver selects a corresponding different voltage value as a function of: (a) a determined number of the loads which are active, or (b) a current flowing from the battery; determines the battery voltage, and if the battery voltage is less than or equal to the corresponding different voltage value, reduces the flash current below the predetermined flash current value until the battery voltage is greater than the corresponding different voltage value. | 2010-08-26 |
20100213843 | HIGH-PRESSURE DISCHARGE LAMP HAVING AN IMPROVED IGNITION DEVICE, AND IGNITION DEVICE FOR A GAS DISCHARGE LAMP - A high-pressure discharge lamp is provided. The high-pressure discharge lamp may include a discharge vessel; and an ignition device which comprises at least one spiral pulse generator that is configured to generate high-voltage pulses, the ignition device being integrated in the high-pressure discharge lamp; wherein the ignition device comprises a charging resistor which is formed entirely or partially by a PTC thermistor. | 2010-08-26 |
20100213844 | DISCHARGE LAMP UNIT - A discharge lamp unit has a supporting part for supporting a discharge lamp, and circuit elements from which electric power is supplied to the discharge lamp through electric wires. The electric wires have radiation parts. In order to increase an amount of heat energy radiated and discharged from the radiation parts, each of the radiation parts has a large surface area when compared with that of parts other than the radiation parts in the electric wires. The structure of the electric wires makes it possible to decrease heat energy conducted from the discharge lamp side toward the circuit elements. | 2010-08-26 |
20100213845 | LED DRIVING DEVICE WITH VARIABLE LIGHT INTENSITY - In a device for driving LEDs with variable light intensity, a supply stage has a first operating mode, in which a controlled supply current is generated, and a second operating mode, in which a controlled supply voltage is generated. A LED is connected to the supply stage, receives the controlled supply current or voltage, and has a turning-on threshold voltage higher than the controlled supply voltage. A current sensor generates a current-feedback signal that is correlated to the current flowing in the LED and is supplied to the supply stage in the first operating mode. An intensity-control stage generates a mode-control signal that is sent to the supply stage and controls sequential switching between the first and the second operating modes of the supply stage. | 2010-08-26 |
20100213846 | METHOD AND SYSTEM FOR A LIGHT SENSING HEADLIGHT MODULATOR - Techniques for providing a method and system for light sensing vehicle light modulator are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method, comprising detecting incoming light utilizing a plurality of light sensors operatively connected to an vehicle, measuring the incoming light intensity, and decreasing a intensity of light output by one or more lights of the vehicle based at least in pan on a measurement of the incoming light intensity. | 2010-08-26 |
20100213847 | DAYTIME RUNNING LAMP ACTIVATION CONTROL METHODS AND APPARATUS - Embodiments include lighting systems and methods for controlling the activation of daytime running lamps (DRLs). Embodiments of the method include receiving inputs from one or more on-board subsystems, and when the lighting system is set in an automatic control mode and the headlights are deactivated, selectively activating and deactivating the DRLs based on the inputs. Embodiments of the lighting system include DRLs, headlights, and a processing and control subsystem. The processing and control subsystem is adapted to determine whether a DRL activation criteria is met when the lighting system is set in an automatic control mode, to activate the DRLs when the DRL activation criteria is met and the headlights are deactivated, and to deactivate the DRLs when the DRL activation criteria is not met and the headlights are deactivated. | 2010-08-26 |
20100213848 | DETECT METHOD FOR STEP DIMMING SELECTION - A detect method is provided for performing step dimming selection in an electronic ballast including an End of Lamp Life detect circuit and a half-bridge inverter, the End of Lamp Life detect circuit being connected to an input terminal of the control circuit, wherein each time when the power switch is turned on, it is judged whether the electronic ballast should enter the dimming mode or not by detecting the voltage at the input terminal of the control circuit before the half-bridge inverter starts operating. | 2010-08-26 |
20100213849 | LED POWER FAILURE LIGHT - The current invention for LED power failure light device which has 1 | 2010-08-26 |
20100213850 | FLUORESCENT DIMMING BALLAST - A dimmable ballast and methods are presented in which the operating frequency of a self-oscillating inverter is controlled according to a sensed lamp current for dimming control or cathode heating, and an AC bus voltage of the inverter is controlled to be at or below a voltage threshold value to prevent over driving operating lamps when one or more lamps are being replaced. | 2010-08-26 |
20100213851 | PLASMA SOURCE - An RF based, gridless improved plasma source and method of operating a plasma source comprising a RF coupler, a first stage with a helicon-like system, a ICH second stage, a ionization chamber, magnetic means which are strengthened on the downstream end of the first stage, to control the plasma flux, ionization fraction, spatial distribution. | 2010-08-26 |
20100213852 | Light source apparatus - A light source apparatus that comprises a blue light emitting diode and a fluorescent material film capable of converting the blue light emitted from the blue light emitting diode into white light, wherein the fluorescent material film is formed by coating, on a glass substrate, a dispersion prepared by dispersing a composition containing metallic oxide fine particles and a yellow fluorescent material capable of absorbing part of the blue light, thereby emitting yellow light, in a metallic alkoxide and/or metallic alkoxide oligomer, followed by firing. | 2010-08-26 |
20100213853 | CURRENT SUPPLY FOR LUMINESCENT DIODES - The present invention is based on a regulation circuit ( | 2010-08-26 |
20100213854 | INTELLIGENT SOLID STATE LIGHTING - A light fixture, using one or more solid state light emitting elements utilizes a diffusely reflect chamber to provide a virtual source of uniform output light, at an aperture or at a downstream optical processing element of the system. Systems disclosed herein also include a detector, which detects electromagnetic energy from the area intended to be illuminated by the system, of a wavelength absent from a spectrum of the combined light system output. A system controller is responsive to the signal from the detector. The controller typically may control one or more aspects of operation of the solid state light emitter(s), such as system ON-OFF state or system output intensity or color. Examples are also discussed that use the detection signal for other purposes, e.g. to capture data that may be carried on electromagnetic energy of the wavelength sensed by the detector. | 2010-08-26 |
20100213855 | ELECTRIC TORCH - An electric torch includes a main body, a holder and a connecting portion. The main body includes a lamp shade and a light emitting portion. The lamp shade defines a receiving space. The light emitting portion is secured in the receiving space and configured for emitting light. The holder is rotatably connected to the main body via the connecting portion and configured for supporting the main body. The connecting portion includes a protrusion, a locating rod and a torsion spring. The protrusion is extended from the main body and communicates with the receiving space of the lamp shade. The locating rod is inserted into the protrusion and received in the holder with two ends fixed to the holder. The torsion spring is sleeved on the locating rod with one end attached to the lamp shade and another end attached to the holder. | 2010-08-26 |
20100213856 | POWER SUPPLY APPARATUS, METHOD FOR DRIVING POWER SUPPLY APPARATUS, LIGHT SOURCE APPARATUS EQUIPPED WITH POWER SUPPLY APPARATUS, AND ELECTRONIC APPARATUS - A power supply apparatus includes an AC/DC circuit, a DC/DC converter, a detection circuit, a digital IC, and a gate driver, and the like. A control formula used for phase compensation for each of a plurality of drive frequencies is stored in a memory of the digital IC. The power supply apparatus makes it possible to obtain a target voltage quickly by performing driving operation with a driving signal having a higher drive frequency at the time of activation. In addition, the power supply apparatus makes it possible to increase circuit efficiency by switching over from the driving signal having the higher drive frequency to a driving signal having a lower drive frequency upon reaching the target voltage. | 2010-08-26 |
20100213857 | Method and appratus of driving LED and OLED devices - A group of novel power conversion concept is developed with this invention for LED and OLED drive applications. The concept utilizes a single power conversion stage to fulfill multiple functions, including Power Factor Correction, DC voltage to DC current conversion, or DC voltage to DC voltage conversion etc. that are necessary for driving LED devices from an AC power input. Multiple dimming control schemes have also been developed to facilitate wide range of application requirements and enable the system to work with different input power format including AC mains power and variable AC voltage from the existing AC dimmer installations. | 2010-08-26 |
20100213858 | POWER SUPPLY FOR AN LED ILLUMINATION DEVICE - An illumination device includes one or more LED's and a power supply configured to convert energy from a commercial AC power source and drive said LED's. The power supply includes a rectifier circuit, a phase detection circuit receiving an output voltage from the rectifier circuit and a switching element. A circuit includes the one or more LED's, an inductive element and a diode, and is coupled on a first end to the rectifier circuit and coupled on a second end to ground through the switching element. A current sensor is positioned to detect a current flowing to the light-emitting diode. A control circuit is coupled to receive the detected current and the detected phase of the rectified output voltage, and further coupled to the switching element and configured to generate a PWM signal for driving the switching element at a frequency higher than a commercial AC frequency. The PWM signal has a pulse width determined in accordance with one or more of a feedback control based on a current detected by the current sensor and a feed-forward control based on a phase of the pulsating voltage detected by the phase detection circuit. | 2010-08-26 |
20100213859 | Adaptive Current Regulation for Solid State Lighting - Exemplary embodiments provide an apparatus, system and method for power conversion to provide power to solid state lighting, and which may be coupled to a first switch, such as a dimmer switch. An exemplary system for power conversion comprises: a switching power supply comprising a second, power switch; solid state lighting coupled to the switching power supply; a voltage sensor; a current sensor; a memory; a first adaptive interface circuit to provide a resistive impedance to the first switch and conduct current from the first switch in a default mode; a second adaptive interface circuit to create a resonant process when the first switch turns on; and a controller to modulate the second adaptive interface circuit when the first switch turns on to provide a current path during the resonant process of the switching power supply. | 2010-08-26 |
20100213860 | HIGH-PRESSURE LAMP AND ASSOCIATED OPERATING METHOD FOR RESONANT OPERATION OF HIGH-PRESSURE LAMPS IN THE LONGITUDINAL MODE AND ASSOCIATED SYSTEM - A high-pressure discharge lamp may include an elongated ceramic discharge vessel, wherein an electrode projects into the discharge vessel in each end area, wherein the electrode is attached to a bushing arranged in a capillary tube, wherein the internal diameter is reduced to at most 85% of the internal diameter of the elongated ceramic discharge vessel in the end area, such that an end surface remains at the end of the vessel, which has an internal diameter of at least 15% of the internal diameter, wherein a gap of most 20 μm remains between the bushing and the inner wall of the capillary, wherein the ratio between the areas which are formed by the internal diameter of the capillary and the diameter of the end surface is in the range from 0.06 to 0.12. | 2010-08-26 |
20100213861 | Light Emitting Device, Lighting System, Backlight Unit for Display Device and Display Device - To enhance emission efficiency and color rendering, a light emitting device | 2010-08-26 |
20100213862 | LIGHT SOURCE DRIVING DEVICE - A light source driving device includes a power factor correction (PFC) circuit, a power stage circuit, a power conversion circuit, a balancing circuit, an inverter control signal processor, an inverter controller and an isolation component. Alternating current (AC) signals are converted into electrical signals to drive lamps via the PFC circuit, the power stage circuit, the power conversion circuit and the current balancing circuit. The power conversion circuit including a transformer divides the driving device into a primary side and a secondary side. The inverter control signal processor receives a first control signal output from a secondary side and generates a second control signal. The inverter controller is disposed on the secondary side to drive the power stage circuit. | 2010-08-26 |
20100213863 | Discharge Lamp Lighting Device - To provide a discharge lamp lighting device in which the initial state of discharge in a wiring of a circuit on the secondary side of a transformer in the discharge lamp lighting device is accurately detected and the operation thereof stops and which can be applied to a large-scaled liquid crystal display device. The discharge lamp lighting device according to the present invention includes a transformer | 2010-08-26 |
20100213864 | CHANGING POWER INPUT TO A GAS DISCHARGE LAMP - The present disclosure thus provides a technique for providing multi-level operation of ballast circuitry for discharge lamps. In one version, an auxiliary capacitance is switched in and out of circuit by a user controlled switch for lower the frequency of the voltage from the inverter to the transformer resulting in lower power output to the lamps. In another version, the auxiliary capacitance may be switched in and out of circuit by a user operated switch wherein the capacitance is connected to the secondary or output winding of the transformer for selectively reducing power to the lamps for reduced illumination. In other versions, auxiliary inductances are selectively switched in and out of circuit to alter the frequency of the primary voltage to the transformer. In another version, an auxiliary winding is selectively switched in and out of the secondary of the transformer for providing normal and reduced level power to the lamps. In another version, a variable direct current power supply is provided to the coupled inductors of the ballast circuitry for user control of the power supply to the ballast circuitry. | 2010-08-26 |
20100213865 | Pulse Width Modulation Control Device - The present invention relates to a pulse-width modulation (PWM) control device, especially to a PWM control device for use with a TRIode for an Alternating Current (TRIAC) dimmer. The PWM control device is comprised of a load, a rectifier, a PWM control module and a PWM controllable ballast. The load may be a gas discharge lamp, a motor, a heating device or a light emitting diode lamp. The rectifier is connected to a power module and rectifies a truncated sinusoidal voltage from the power module to a pulsating truncated direct current (DC) voltage. The PWM control module is connected to the power module and the rectifier and generates a PWM control signal. The PWM controllable ballast is driven by a boost circuit and is controlled by the PWM control signal that limits current to a proper value for the load. | 2010-08-26 |
20100213866 | BALLAST AND BALLAST CONTROL METHOD AND APPARATUS, FOR EXAMPLE ANTI-ARCING CONTROL FOR ELECTRONIC BALLAST - A technique for providing control for an electronic ballast by responding to the current in the common bus (DC power rail) between a boost circuit such as a power factor circuit (PFC) and an output (such as a high frequency (HF) inverter) circuit, and adjusting, changing or shutting down either the power factor control circuit or the inverter circuit when the power going into the inverter circuit is above a threshold. Power going into the inverter circuit may be measured by a resistor, and temperature compensation may be provided. Excess power indicative of a spark is detected in such a way that normal starting of a lamp load connected to the ballast occurs without triggering the change/shutdown but an external arc will trigger the change/shutdown. For example, the output circuit may be shut down and the external arc curtailed within 200 msecs. | 2010-08-26 |
20100213867 | HIGH-PRESSURE DISCHARGE LAMP - A high-pressure discharge lamp may include a discharge vessel, which contains: electrodes, at least one noble gas as a start gas, at least one element selected from the group consisting of Al, In, Mg, Tl, Hg, and Zn for arc transfer and discharge vessel wall heating, and at least one rare earth halide for the generation of radiation, which is configured such that the generated light is dominated by molecular radiation, wherein at least one member of a first group of rare earth halides is used together with at least one member of a second group of rare earth halides, the first group having the property that the color distance decreases with a power increase when the power of the lamp is increased in a predetermined power interval, and the second group having the property that the color distance increases with a power increase when the power of the lamp is increased in this predetermined power interval. | 2010-08-26 |
20100213868 | VEHICLE MULTIFUNCTIONAL LAMP - A vehicle multifunctional lamp is provided. The vehicle multifunctional lamp mainly includes a lamp body, a lamp shade, and light source sets. The light source sets have at least two sets. In the at least two light source sets, at least one set is daylight lamps, and the rest is one or more of others such as sidelights, fog lamps, or turn signal lamps. Therefore, the lamp formed of the same lamp body and the lamp shade has car indicators having more than two functions. Thereby, the present invention is convenient to install. | 2010-08-26 |
20100213869 | ILLUMINATION DEVICE - An illumination device having one or more light emitting diodes is provided. The illumination device may include an alternate current to direct current converter, a current regulator for receiving an output of the alternate current to direct current converter and a light source, containing the one or more of light emitting diodes, for receiving the regulated current from the current regulator. The regulated current may be applied to the one or more light emitting diodes causing the light emitting diodes to illuminate. The one or more light emitting diodes may be connected in series and each light emitting diode may include a light emitting surface having rough surface pattern for maximizing the light intensity of the light emitting diodes while minimizing the heat dissipating from the light emitting diodes. | 2010-08-26 |
20100213870 | DIMMER JITTER CORRECTION - A controller and a method for controlling lamp drivers such as e.g. LED drivers for lamps having a fast response behavior such as e.g. LED lamps are proposed. They enable to substantially reduce or prevent a visible luminance flicker at such lamps when dimming the lamps with a conventional dimmer such as e.g. a phase cut dimmer. This can be achieved by switching off the lamp driver prematurely in such a way that a time jitter of a dimmer switching does not influence an on-time of the lamp driver. No bulky or expensive filters or capacitors are needed. Thus, a space-switch saving and/or inexpensive construction is enabled. | 2010-08-26 |
20100213871 | BACKLIGHT DRIVING SYSTEM - A backlight driving system comprises a backlight driving circuit and a brightness regulation circuit. The brightness regulation circuit comprises a first regulation circuit to generate a first brightness regulation signal, a second regulation circuit to generate a second brightness regulation signal, a signal regulation circuit to combine the first and second brightness regulation signals into a combined brightness regulation signal according to a mode selection signal, and a driving control circuit to control the power delivered to the backlight from the backlight driving circuit according to the combined brightness regulation signal. | 2010-08-26 |
20100213872 | SYSTEM AND METHOD FOR ELECTRONIC ADAPTIVE FRONT-LIGHTING - A system and method relates to electronic adaptive front-lighting of a vehicle, including at least one fixed solid state light source. The fixed solid state light source is configured to illuminate a front peripheral region of a vehicle. In addition, the fixed solid state light source is integrated with a daytime running light module of the vehicle. | 2010-08-26 |
20100213873 | SYSTEM AND METHOD FOR LIGHT AND COLOR SURROUND - The present disclosure is directed towards a multimedia system comprising a multimedia reader. The multimedia reader may be configured to read multimedia content and to extract light surround content. The light surround content may represent a light surround control signal. The light surround content may be extracted from the multimedia content. The multimedia reader may also be configured to output the light surround control signal. Further, the multimedia system may also include one or more light emitting devices. Each light emitting device may be in communication with the multimedia reader. Each light emitting device may be configured to receive the light surround control signal and to control a light characteristic based upon, at least in part the light surround control signal. Numerous other embodiments are also within the scope of the present disclosure. | 2010-08-26 |
20100213874 | Optocoupler System with Reduced Power Consumption and Pulse Width Distortion - According to one embodiment, there is provided an optocoupler system configured to generate current signals having high, low and no amplitude portions in response to the receipt of logic high and low input signals. The varying amplitude portions of the current signals are used to drive other portions of the isolation circuitry, and result in reduced power consumption and dissipation, as well as reduced pulse width distortion. | 2010-08-26 |
20100213875 | Power Supply Controlling Device - A power supply controlling device includes a main controlling unit, the main controlling unit stores daily sunrise and sunset time data from January 1 | 2010-08-26 |
20100213876 | LIGHTING CONTROL - The invention relates to a data tag ( | 2010-08-26 |
20100213877 | AMBIENCE LIGHTING SYSTEM FOR A DISPLAY DEVICE AND A METHOD OF OPERATING SUCH AMBIENCE LIGHTING SYSTEM - This invention relates to an ambience lighting system for use in conjunction with a display device including an image display region. A central control receives an incoming audio video stream (AVS) and to determines color information at the periphery of the image to be displayed. Light sources are disposed in a pre-fixed arrangement in relation to the periphery of the image display region, and local control units are coupled to open or more light sources selected from the multiple light sources for locally operating the at least one coupled light source. The central control unit is adapted to transmit the determined color information as a stream to each respective local control unit, which use a portion of the received color information to operate the at least one coupled light source, the portion being determined based on the position of the at least one coupled light source within the pre-fixed arrangement. | 2010-08-26 |
20100213878 | METHOD AND APPARATUS FOR REDUCING OPTICAL EMISSIONS IN AN INTEGRATED CIRCUIT - An integrated circuit is provided with first circuitry having first and second transistors which emit light during a change in state between states of low and high resistance and second circuitry having third transistors which emit light during a change in state. The third transistors are disposed near at least one of the first and second transistors so that light emissions from the third transistors hinder optical detection of a pattern of light emitted by the first and second transistors. | 2010-08-26 |
20100213879 | LED LIGHT HAS MORE THAN ONE REFLECTIVE MEANS TO CREATE MULTIPLE IMAGES - The current invention teach LED night light for different power source including battery, outlet plug-in or interchangeable power source incorporated more than 1 reflective means can with desired relative position, distance, orientation to create plurality of LED or LEDs image in x-y-z axis to show on the surface. The said at least one of the reflective means can be see though to let plurality LED or LEDs image to be seen from this see though reflective means. Also teach the power saving and cost saving LED light device. | 2010-08-26 |
20100213880 | LED LIGHT WITH SPECIAL EFFECTS - The current invention teach LED light device has special effects which meet persistence of vision theory to have LED or LEDs or LED array has quickly changing than the human eye response time within 1/16 to 1/24 second to let people see the message display from the said light device with special message, time, drawing, light patterns, light color changing. It also teach a sealed-unit with receiving means to receive all eye-catching shades to make said light device been used for desktop or outlet for desire power source or interchangeable power source. Also teach the power saving and cost saving LED light device. | 2010-08-26 |
20100213881 | Light source apparatus - A light source apparatus that includes a light emitting diode and a fluorescent material film. The fluorescent material film converts ultraviolet or blue light emitted from the light emitting diode into white light. The film is formed by coating, on at least one side of a glass substrate, a liquid mixture of fluorescent material, an organic binder, and a solvent, followed by drying and firing, and another thin film is further formed by coating, on the fluorescent material film, a coating material that contains a metallic alkoxide and/or metallic alkoxide oligomer, followed by drying and firing. | 2010-08-26 |
20100213882 | DRIVE UNIT - A drive unit includes an ultrasonic actuator having an actuator body formed using a piezoelectric element, and a driving element provided on the actuator body and configured to output a driving force by moving according to the vibration of the actuator body, and a control section configured to induce the vibration in the actuator body by applying a first and a second AC voltages having a same frequency and different phases to the piezoelectric element. The control section adjusts the first AC voltage and the second AC voltage so that the first AC voltage and the second AC voltage have different voltage values from each other. | 2010-08-26 |
20100213883 | VARIABLE-DELAY-TIME CONTROL SYSTEM FOR A MOTOR - A variable-delay-time control system for a motor is provided. The system includes a control unit, a driving unit, and a motor. The control unit is used to output at least one control signal according to at least one predetermined signal, and the control signal has a variable delay time. The driving unit is connected to the control unit, and is used to receive the control signal and generate a driving signal. The motor is connected to the driving unit, and conduction time of the motor is controlled according to the driving signal and the variable delay time. With the variable-delay-time control system of the present invention, the delay time of the control signal is variable, so the motor can operate at a high efficiency (for example, at a reduced current). Moreover, as the variable-delay time can be adjusted according to the predetermined signal, the motor can operate at a high efficiency in different operating states, thus improving the overall efficiency of the motor. | 2010-08-26 |
20100213884 | ELECTRIC DRIVE SYSTEM FOR AN AUTOMOTIVE VEHICLE - An electric drive system in an automotive vehicle includes a controller for determining a condition of the electric drive system. The electric drive system includes only two current sensors and a common-mode current transformer. In response to the current sensors and the common-mode current transformer, the controller determines the condition of the electric drive system. The condition of the electric drive system may depend on a condition of an electrical connection between a drive system inverter and a motor in the electric drive system as well as a calculated amount of error in the electric drive system. In addition, the controller may control various operations of the electric drive system, which may or may not depend on the condition of the electric drive system. | 2010-08-26 |
20100213885 | MAGNETIC FLUX CONTROLLABLE ROTATING ELECTRIC MACHINE SYSTEM - In a magnet-exciting rotating electric machine system, a rotor surface has magnetic salient poles and island-shaped magnetic poles alternately in circumferential direction, and the island-shaped magnetic poles are constituted so that magnetic flux coming from an external source does not flow through. A magnetic excitation part magnetizes the island-shaped magnetic poles and the magnetic salient poles collectively in the same direction, and then control a flux amount flowing through an armature. The armature has armature coils that face the magnetic salient pole and the island-shaped magnetic pole simultaneously so that driving torque fluctuation or power generation voltage waveform distortion is controlled. The magnetic excitation part changes magnetization state of a field magnet irreversibly, or changes an excitation current to an excitation coil to control a flux crossing the armature. | 2010-08-26 |
20100213886 | Energy-saving controller for three-phase induction motors - The present invention relates to an energy-saving system for three-phase induction motors and is based on the principle of variable voltage control at constant speed. It is composed of a microprocessor, exampling circuit, sensing circuit, acquiring circuit, firing circuit, and AC to AC converter. The system is to automatically adjust the voltage to the induction motor with the variation in the motor load, in order to obtain high operating power factor and efficiency. The system will result in considerable energy-savings when a three-phase induction motor runs under constant light-load or variable-load with low duty ratio. | 2010-08-26 |
20100213887 | Solar Charged Hybrid Power System - A solar powered hybrid power system including a solar charge collector; a charge storage system comprising at least a first charge storage device adapted to receive and store charge from said solar charge collector; wherein said charge storage system further comprises a power electronic circuit selectively connectable to at least a second charge storage device, said power electronic circuit adapted to transfer said stored charge to said at least a second charge storage device at a selectable voltage level. | 2010-08-26 |
20100213888 | Apparatus and Method Pertaining to Light-Based Power Distribution in a Vehicle - A vehicle ( | 2010-08-26 |
20100213889 | Method of recharging a caddy cart battery - A method of recharging a caddy cart battery, comprises a step of connecting the caddy cart battery to an electrical supply of a vehicle to thereby charge the caddy cart battery. The method employs an electronic charge varying device to decrease the electrical supply to the caddy cart battery when it is recharged, wherein the charge passing from the vehicle battery to the caddy cart battery passes through the charge varying device. The invention also relates to a kit for carrying out the method of the invention, and a vehicle incorporating means for re-charging a caddy cart battery. | 2010-08-26 |
20100213890 | METHOD AND SYSTEM FOR DETECTION OF COUNTERFEIT BATTERIES - A method and system for detecting the use of an unauthorized battery pack in a portable electronic device. The method comprises monitoring a temperature profile of at least one battery cell in a battery pack during an operation of the portable electronic device. The temperature profile is determined in accordance with an output of an internal temperature sensing circuit in the battery pack. If the temperature profile is determined to be atypical, an indication is provided that the battery pack is an unauthorized battery pack. For example, if the temperature profile does not show an expected temperature rise during a charging operation, a visual indication can be provided. The indication can also trigger the control of charging or discharging operations of the portable electronic device. Charging can be terminated or the device shut down to avoid a potentially catastrophic thermal runaway event. The device can also be operated in a reduced power mode in response to the indication. | 2010-08-26 |
20100213891 | BATTERY PACK UPDATING METHOD - The battery pack updating method updates firmware stored in internal control circuit memory | 2010-08-26 |
20100213892 | Portable docking station for powering multiple AC-powered battery chargers and multiple DC-powered battery chargers simultaneously - A portable docking station for powering multiple AC-powered battery chargers and multiple DC-powered battery chargers simultaneously. The portable docking station includes an enclosure, a plurality of female AC receptacles, an AC power circuit, a plurality of female DC receptacles, and a DC power circuit. The plurality of female AC receptacles and the plurality of female DC receptacles are accessible from the enclosure. The AC power circuit is contained within the enclosure and powers the plurality of female AC receptacles for powering the multiple AC-powered battery chargers. The DC power circuit is contained within the enclosure and powers the plurality of female DC receptacles for powering the multiple DC-powered battery chargers. The AC power circuit and the DC power circuit operate simultaneously for powering the multiple AC-powered battery chargers and the multiple DC-powered battery chargers, respectively, simultaneously. | 2010-08-26 |
20100213893 | POWER STORAGE DEVICE - In the field of portable electronic devices in the future, portable electronic devices will be desired, which are smaller and more lightweight and can be used for a long time period by one-time charging, as apparent from provision of one-segment partial reception service “1-seg” of terrestrial digital broadcasting that covers the mobile objects such as a cellular phone. Therefore, the need for a power storage device is increased, which is small and lightweight and capable of being charged without receiving power from commercial power. The power storage device includes an antenna for receiving an electromagnetic wave, a capacitor for storing power, and a circuit for controlling store and supply of the power. When the antenna, the capacitor, and the control circuit are integrally formed and thinned, a structural body formed of ceramics or the like is partially used. A circuit for storing power of an electromagnetic wave received at the antenna in a capacitor and a control circuit for arbitrarily discharging the stored power are provided, whereby lifetime of the power storage device can be extended. | 2010-08-26 |
20100213894 | RECHARGING DEVICE AND RECHARGING SYSTEM USING SAME - A recharging system for wireless charging comprising an electronic device and a recharging device. The electronic device comprises a first electromagnetic induction device and a rechargeable battery. The recharging device comprises a detection layer, a second electromagnetic induction device, and a driving device. The detection layer is configured for detecting the position of the electronic device. The driving device drives the second electromagnetic induction device to align with the first electromagnetic induction device. The second electromagnetic induction device is configured for inducing a current in the first electromagnetic induction device. | 2010-08-26 |
20100213895 | WIRELESS POWER CHARGING TIMING AND CHARGING CONTROL - Exemplary embodiments are directed to timing and control of wireless power transfer. A wireless power charging device includes at least one transmitter and a processor in communication with the at least one transmitter. The transmitter is configured for transmitting wireless power to one or more electronic devices, and the processor is configured to deactivate the transmitter during a pre-determined time interval. The charging device may include charging modes that a user may select between from an interface of the charging device. Charging modes may be related to times of operation such as those based on a user schedule, based on energy rates, or with modes programmed by a user. A charging schedule may be created by a user through the interface of the charging device or from an external device in communication with the charging device. | 2010-08-26 |
20100213896 | CHARGING CONTROL APPARATUS FOR VEHICLE AND VEHICLE - A switch of a connecting circuit is connected between a signal line branched from an input terminal for a pilot signal in a charging inlet and a ground line connected to a vehicle earth, and is turned on/off in response to a control signal from a CPU. The CPU causes the switch to be turned on when a connector is not connected to the charging inlet, and detects a break in a control pilot line based on whether or not a change in the potential of the pilot signal occurs at that time. | 2010-08-26 |
20100213897 | Battery-Cell Converter Management Systems - A battery cell converter (BCC) unit including one or more energy-storing battery cells coupled to one or more DC/DC converters is disclosed. A management unit can monitor and control the charging and discharging of each battery cells; including monitoring of voltages & State-of-Charge of each cell as well as controlling the switching of the DC/DC converters. The combined power and cell switching algorithms optimizes the charging and discharging process of the battery cells. A compound battery cell converter system comprising a series stack of BCCs to achieve high effective converter output voltage is also disclosed. The new proposed Battery Cell Converter architecture will enable improvements in battery pack usage efficiencies, will increase battery pack useable time per charge, will extend battery pack life-time and will lower battery pack manufacturing cost. | 2010-08-26 |
20100213898 | MOTIVE POWER DUAL BATTERY PACK - A fast charge configuration for a power supply includes a serial connection to a pair of batteries each having an output that is half that required by the device, such as the electric vehicle, in which the batteries are to be used. When the batteries in then connected to the vehicle, they are connected in parallel | 2010-08-26 |
20100213899 | 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. | 2010-08-26 |
20100213900 | BATTERY PACK FOR CORDLESS POWER TOOLS - A battery pack which includes a battery pack electronic control circuit adapted to control an attached power tool and/or an attached charger. The battery pack includes additional protection circuits, methodologies and devices to protect against fault conditions within the pack, as the pack is operatively attached to and providing power to the power tool, and/or as they pack is operatively attached to and being charged by the charger. | 2010-08-26 |
20100213901 | SECONDARY BATTERY CHARGE CONTROL METHOD AND CHARGE CONTROL CIRCUIT - A secondary battery charge control method includes: a charge control step of executing charging by supplying a charge current to a secondary battery; a charge information acquisition step of acquiring information relating to the charging executed in the charge control step; a storage step of storing the information acquired in the charge information acquisition step as charge data; and a charge inhibition determination step of determining whether to inhibit the charging in the charge control step on the basis of the charge data of a previous cycle that have been stored in the storage step when charging in the charge control step is started again after charging in the charge control step has been completed. | 2010-08-26 |
20100213902 | Use of High Frequency Transformer to Charge HEV Batteries - A system for charging a high voltage battery that includes a low DC voltage battery, a DC-to-AC converting circuit, a controller, a AC-to-DC converting circuit and a high DC voltage battery. The low voltage battery outputs a low DC voltage signal. The DC-to-AC converting circuit receives the low DC voltage signal to convert into a chopped DC voltage signal. The DC-to-AC converter outputs a high AC voltage signal corresponding to the chopped DC voltage signal. The controller controls a duty cycle of the chopped DC voltage signal. The AC-to-DC converting circuit converts the high AC voltage signal into a high DC voltage signal. The high voltage battery charges using the high DC voltage signal. A method for charging a high voltage battery is also provided. | 2010-08-26 |
20100213903 | REDUCING STORED ELECTRICAL ENERGY IN A LEAD INDUCTANCE - According to a first aspect of the present invention, reducing electrical energy stored in a load or in one or more leads for connecting a power supply with the load is achieved by plasma process power circuitry including a switch in operative connection with at least one of the leads for enabling/interrupting power to the load; a first electrical nonlinear device; an energy storing device arranged in series with the first electrical nonlinear device; and a pre-charging circuit in operative connection with the energy storing device, the pre-charging circuit configured to charge the energy storing device to a pre-determined energy level while power to the load is enabled. | 2010-08-26 |
20100213904 | VEHICLE AND DISCHARGE METHOD OF SMOOTHING CAPACITOR IN VEHICLE - At the time of an occurrence of failures of an inverter, both of two switching elements of the buck-boost converter are switched on so that electric charge is discharged from the smoothing capacitor that smoothes voltage between terminals of the inverter regardless of whether a collision of a vehicle occurs or not (S | 2010-08-26 |
20100213905 | EARTH LEAKAGE DETECTION CIRCUIT - A zero-phase current is outputted by detecting a ground-fault current with a zero-phase-sequence current transformer. A circuit having an open collector output operates when the voltage of the zero-phase current exceeds a positive side threshold value or it falls below a negative side threshold value to discharge a capacitor. When the inter-plate voltage of the capacitor falls below a threshold value voltage, a controlling means detects electric leakage to transmit that to a control unit of an air conditioner. | 2010-08-26 |
20100213906 | Induction Regulator for Power Flow Control in an AC Transmission Network - An induction regulator for controlling the voltage amplitude and/or phase angle of a polyphase electric transmission network connected between the primary side and the secondary side of the transmission network. The rotor is fixed in relation to the stator and the volume between stator and rotor includes a magnetic volume with a region including a controllable magnetic flux region of solid material that has a relative permeability that is controllable by changing its temperature. | 2010-08-26 |
20100213907 | Low Drop Out Linear Regulator - A low drop out linear regulator is provided. The low drop out linear regulator comprises an output PMOS, a load, a discharging circuit and an operational amplifier. The output PMOS comprises a source connected to a power supply and a drain having an output voltage and an output current. The drain is connected to a load circuit having a heavy and a light load period. The load is connected to the drain to generate a divided output voltage. The discharging circuit is connected to the drain to discharge the output current from the drain. The operational amplifier is to generate a control voltage according to the divided output voltage and a reference voltage; when the load circuit switches from the heavy to the light load period to make the divided output voltage higher than the reference voltage, the control voltage turns off the output PMOS and activates the discharging circuit. | 2010-08-26 |
20100213908 | LOW DROPOUT REGULATORS - Low dropout regulators capable of preventing damage caused by a short circuit or a heavy load are provided, in which a pass transistor receives an unregulated power supply voltage to generate a regulated output voltage according to a control signal. Additionally, a constant overcurrent limiting circuit limits an output current through the pass transistor to below a predetermined current, and a foldback overcurrent limiting circuit enables the constant overcurrent limiting circuit to further decrease the output current, when the regulated output voltage is lower than a predetermined voltage. | 2010-08-26 |
20100213909 | VOLTAGE REGULATOR - Provided is a voltage regulator in which a maximum output current and a short-circuit output current may be accurately set. As a circuit for determining respective current values of a maximum output current (Im) and a short-circuit output current (Is) of an overcurrent protection circuit, the voltage regulator includes a current mirror circuit for mirroring a current in accordance with an output current so as to be capable of current control, without employing a resistor for converting a current into a voltage. Therefore, the maximum output current (Im) and the short-circuit output current (Is) may be accurately set with respect to an output current (Iout). | 2010-08-26 |