17th week of 2014 patent applcation highlights part 19 |
Patent application number | Title | Published |
20140111082 | Fluorescent Lamp Including Phosphor Composition With Special BAMn Phosphor, (Ba,Sr,Ca)(Mg1-x Mnx)Al10O17:Eu2+ - A fluorescent lamp includes a phosphor composition comprising: Y | 2014-04-24 |
20140111083 | symmetric quadrupole structured field emission display without spacer - The present invention relates to a symmetric quadrupole structured field emission display without spacer comprising the upper and under substrates with a dielectric layer in between, wherein comb-like dielectric layer with lateral connection belts and a number of longitudinal working belts and longitudinal anodes are arranged on the upper substrate, bus electrodes are arranged longitudinally along the center on each anode, on the top, longitudinal alternating phosphor layer and dielectric layer for isolation on anode, gate electrodes are arranged on both sides of each longitudinal work belts, with the bus electrode as symmetry center, forming interdigital gate electrodes, horizontal cathode electrodes and longitudinal auxiliary electrodes are on the under substrate, resistor layer for current limiting and dielectric layer for cathode protection are arranged alternating horizontally on each cathode electrode, each intersect of the auxiliary electrode and cathode is isolated by the dielectric layer for cathode | 2014-04-24 |
20140111084 | OLED LIGHTING DEVICE - An organic light-emitting diode (OLED) lighting device comprises an organic light emitting unit and a power supply unit. The organic light emitting unit has a substrate, and a first electrode layer, an organic light emitting layer and a second electrode layer sequentially laminated on the substrate. The first electrode layer and the second electrode layer have a first contact portion and a second contact portion extending toward the periphery of the substrate, respectively. The power supply unit has a plurality of power supply elements. Each power supply element has a conductive terminal portion and an insulating portion. Each conductive terminal portion has an inner surface and an outer surface opposite to the inner surface. The inner surfaces are correspondingly connected to and completely cover the first contact portion and the second contact portion, respectively. Each insulating portion completely covers the outer surface of each conductive terminal portion. | 2014-04-24 |
20140111085 | PHOTOMULTIPLIER AND ITS MANUFACTURING METHOD - The present invention relates to a photomultiplier having a structure for making it possible to easily realize high detection accuracy and fine processing, and a method of manufacturing the same. The photomultiplier comprises an enclosure having an inside kept in a vacuum state, whereas a photocathode emitting electrons in response to incident light, an electron multiplier section multiplying in a cascading manner the electron emitted from the photocathode, and an anode for taking out a secondary electron generated in the electron multiplier section are arranged in the enclosure. A part of the enclosure is constructed by a glass substrate having a flat part, whereas each of the electron multiplier section and anode is two-dimensionally arranged on the flat part in the glass substrate. | 2014-04-24 |
20140111086 | ELECTRONIC DEVICE AND METHOD FOR DRIVING THE LAMPS OF THE BLINKERS OF A VEHICLE - An electronic system for driving a lamp of a blinker of a vehicle may include a switch having a first input terminal configured to receive a battery voltage, a second input control terminal configured to receive a control signal for operating the switch, and an output terminal. The system may also include a change-over switch configured to connect, alternatively, the output terminal of the switch to the lamp and to a high impedance reference. The system may also include an electronic device connected to the switch and configured to detect a voltage drop between the first input terminal and the output terminal, and, based upon the voltage drop, generate the control signal to have a value to maintain the switch open for a time interval, and generate the control signal to have a second value to maintain the switch closed for another time interval. | 2014-04-24 |
20140111087 | LIGHTING CONTROL SYSTEM FOR VEHICLE LAMP - There is provided a lighting control system of a vehicle lamp. The system includes: a plurality of lamps including: a main lamp; and a separate lamp which is separated from the main lamp; and a lighting controller configured to control lighting of the plurality of lamps. The main lamp includes: a first lamp lighting circuit configured to perform a lighting operation of the main lamp; and a control circuit configured to output a lighting signal based on a lighting control signal output from the lighting controller. The separate lamp includes: a second lamp lighting circuit configured to perform a lighting operation of the separate lamp. The first lamp lighting circuit and the second lamp lighting circuit are configured to perform the lighting operations based on the lighting signal output from the control circuit. | 2014-04-24 |
20140111088 | ELECTROMAGNETICALLY-COUNTERED DISPLAY SYSTEMS AND METHODS - The present invention relates to an electromagnetically-countered display system including at least one wave source and at least one counter unit, where such a wave source irradiates harmful electromagnetic waves and the counter unit emits counter electromagnetic waves for countering the harmful waves therewith. More particularly, the present invention relates to various counter units for the electromagnetically-countered display system and to various mechanisms to counter the harmful waves with the counter units, e.g., by matching configurations of the counter units with those of the wave sources, by matching wavefronts of the harmful waves with those the counter waves, and so on. The present invention also relates to various methods of countering the harmful waves with such counter waves by source and/or wave matchings, various methods of providing the counter units for emitting the counter waves defining desired wave characteristics, and the like. The present invention further relates to various processes for providing the electromagnetically-countered display systems and their counter units. The present invention further relates to various electric and magnetic shields employed either alone or in conjunction with the counter units for minimizing irradiation of the harmful waves from the shaving system. | 2014-04-24 |
20140111089 | LATCHING CIRCUIT FOR BALLAST - A ballast including a latching circuit is provided. The ballast includes an inverter circuit for providing an oscillating voltage signal to energize a lamp set, a control circuit for controlling operation of the inverter circuit, and a voltage supply circuit for providing a supply voltage to the control circuit. The ballast also includes a fault detection circuit for detecting a fault condition and a latching circuit connected to the fault detection circuit. The latching circuit is configured to drain the supply voltage and thereby disable the control circuit so that operation of the inverter circuit is discontinued during a fault condition. | 2014-04-24 |
20140111090 | TEMPERATURE FOLDBACK CIRCUIT FOR LED LOAD CONTROL BY CONSTANT CURRENT SOURCE - An apparatus includes an input node, a light-emitting diode (LED) string to receive a current from the input node, a voltage divider to output a control voltage, and a switch to receive the control voltage. The switch coupled to the LED string controls the current through the LED string according to the control voltage. | 2014-04-24 |
20140111091 | SPECTRAL SHIFT CONTROL FOR DIMMABLE AC LED LIGHTING - Apparatus and associated methods involve operation of an LED light engine in which a relative intensities of selected wavelengths shift as a function of electrical excitation. In an illustrative example, current may be selectively and automatically diverted substantially away from at least one of a number of LEDs arranged in a series circuit until the current or its associated periodic excitation voltage reaches a predetermined threshold level. The diversion current may be smoothly reduced in transition as the excitation current or voltage rises substantially above the predetermined threshold level. A color temperature of the light output may be substantially changed as a predetermined function of the excitation voltage. For example, some embodiments may substantially increase or decrease a color temperature output by a solid state light engine in response to dimming the AC voltage excitation (e.g., by phase-cutting or amplitude modulation). | 2014-04-24 |
20140111092 | EMISSION CONTROL LINE DRIVER - Each stage of an emission control line driver includes a first transistor connected to a first node, a first power source, and a first output terminal; a second transistor connected to second node, the first output terminal, and a second power source; a third transistor connected to a second input terminal, a first input terminal, and the first node; a fourth transistor connected to the first node, the first power source, and the second node; a first controller connected to the first to third input terminals to supply sampling signal to a second output terminal; and a second controller connected to the second input terminal and a fourth input terminal to control the voltage of the second node. The first controller includes a fifth transistor connected between the first power source and the second output terminal, and to the second controller or the first output terminal via a protection unit. | 2014-04-24 |
20140111093 | AVERAGE LINEAR LED DRIVER CIRCUIT - An average linear light-emitting diode (LED) driver circuit is disclosed. An inputting alternating-current (AC) voltage is connected to a rectifier bridge. An LED load is paralleled with a filtering capacitor and connected to a power switch. A compensation network and a voltage feedback network are included. When the output voltage of the rectifier bridge is higher than the voltage of the filtering capacitor, the drain voltage of the power switch is increased. The voltage feedback network decreases or turns off the current in the power switch. The compensation network controls the average current in the power switch to be equal to the desired LED load current. The average linear LED driver circuit intelligently controls the driver current, reduces the system power loss and increases the system efficiency. The LED driver maintains high conversion efficiency, especially under wide input voltage conditions. | 2014-04-24 |
20140111094 | ILLUMINATION SYSTEM - A lighting system includes an EL unit having a light emitter, a holding frame that holds the EL unit, and a control unit that controls lighting of the EL unit, wherein the holding frame includes a rail-shaped conductive member, and power and communication signals are transmitted between the control unit and the EL unit through the conductive member. With this configuration, since the connection between the control unit and the EL unit is made by the conductive member provided on the holding frame, which holds the EL unit, space for wiring in a residential space can be reduced. Further, simply by placing the holding frame on a mounting surface and attaching the EL unit and the control unit to the holding frame, they are connected. Therefore, without special skills, a resident can install the lighting system as appropriate and can easily replace the EL unit. | 2014-04-24 |
20140111095 | LIGHT-EMITTING ELECTRIC-POWER GENERATION MODULE AND LIGHT-EMITTING ELECTRIC-POWER GENERATION DEVICE - A light-emitting electric-power generation module according to an embodiment includes a photoelectric conversion element for emitting light and generating electric power, a light-emission controller configured to control light emission of the photoelectric conversion element, an electric-power generation controller configured to control electric-power generation of the photoelectric conversion element, and a switching unit configured to switch light-emission state and electric-power generation state of the photoelectric conversion element. | 2014-04-24 |
20140111096 | SYSTEMS AND METHODS TO COMMUNICATE AND CONTROL ACTIONS USING LIGHT EMITTING DIODES - In some embodiments, a signal of light may be emitted from an illumination source of a first transceiver. A second transceiver may detect a signal of light from the first transceiver that exceeds a threshold luminosity; and activate, in response to the detecting of the signal of light that exceeds the threshold luminosity, an illumination source of the second transceiver to illuminate. An intensity of the illumination source of the first transceiver may then be reduced in response to the activating of the illumination source of the second transceiver to illuminate. | 2014-04-24 |
20140111097 | IDENTIFICATION DEVICE, METHOD AND COMPUTER PROGRAM PRODUCT - According to an embodiment, an identification device includes a controller, an acquiring unit, and an identifying unit. The controller controls turning on/off of a plurality of light emitting apparatuses via a network individually by using pieces of identification information of their respective light emitting apparatuses. The acquiring unit acquires images of the light emitting apparatuses in time-series. The identifying unit determines an installation position of each of the light emitting apparatuses by using the on/off control on the light emitting apparatuses and the images, and identifies each of the light emitting apparatuses determined by the installation positions corresponding to each of the light emitting apparatuses identified by the pieces of identification information with each other. | 2014-04-24 |
20140111098 | DISTRIBUTED STREET LIGHTS MONITORING, COMMAND AND CONTROL COMBINED WITH SOLAR PHOTO VOLTAIC CELL - Monitoring, command, control, and management of a street light may be provided. First, an amount of light may be determined. Next, a status of the street light may be determined based on the determined amount of light. Then, a current status of the street light may be determined. The current status may be compared with the determined status. Based on the comparison, the current status of the street light may be altered. | 2014-04-24 |
20140111099 | ARRAY SUBSTRATE, LCD DEVICE AND DRIVING METHOD - In an embodiments of the present invention, since two pixel electrodes are arranged in the pixel unit and each of the pixel electrodes is respectively controlled by a corresponding TFT, the rotation direction of the liquid crystal molecules may be controlled by the voltage difference between the two pixel electrodes, while the voltage on the pixel electrodes of other pixel units in the array substrate is not affected, so that the greenish phenomenon can be avoided. Furthermore, since the two TFTs for controlling the two pixel electrodes respectively may have same parasitic capacitor when the pixel unit is turned off, the voltage difference between the two pixel electrodes is kept unchanged, and thus the occurrence of the image flickering can be avoided. | 2014-04-24 |
20140111100 | CONTROL CIRCUIT FOR LIGHT-EMITTING DIODES - A circuit includes a number of LEDs connected in series, and first and second electronic switches. An anode of a first one of the LEDs is connected to a first power supply. A control terminal of the first electronic switch receives a control signal. A first terminal of the first electronic switch is connected to a second power supply. A second terminal of the first electronic switch is grounded through a first resistor. A control terminal of the second electronic switch is connected to the second terminal of the first electronic switch. A first terminal of the second electronic switch is connected to a cathode of a last one of the LEDs. A second terminal of the second electronic switch is grounded through a second resistor. | 2014-04-24 |
20140111101 | Apparatus and method for controlling LED light strings - An enhanced control mechanism for an LED light string system is provided for switching between one of two DC output phases or polarities so as to actuate one or the other of two LEDs within the bulbs on the light string. The control mechanism is further configured to allow switching so as to pass through the input power provided by a high-to-low voltage converter that is plugged into its electrical power feeding end. The control mechanism may then provide rectified AC voltage, or DC voltage, of various switched values to the LED string according to the particular needs of the LED bulbs. | 2014-04-24 |
20140111102 | METHOD OF DRIVING LED LIGHTING SOURCES AND RELATED DEVICE - An arrangement for driving a light source, including a plurality of LED strings by means of a current generator, wherein each said LED string forms a respective current mesh with said current generator, includes: at least one inductor acting on said current meshes, in each of said current meshes, an electronic switch having a first, working node towards the LED string and a second, reference node opposed to the LED string. | 2014-04-24 |
20140111103 | Buck-Store and Boost-Restore Converter - A system includes: a first converter for receiving a pre-stage input DC voltage from a power source, and providing a pre-stage output DC voltage including a first DC voltage or a second DC voltage; a modulator the modulator controlling the first converter; a second converter, coupled to the first converter; and a controller, the controller controlling an operation mode of the second converter and notifying the modulator about the operation mode of the second converter. The modulator and the controller receive an external voltage indication signal indicating whether the pre-stage output DC voltage is the first DC voltage or the second DC voltage. The modulator controls the first converter to output the pre-stage output DC voltage based on the voltage indication signal. The modulator notifies the controller about whether the pre-stage output DC voltage reaches a target level. | 2014-04-24 |
20140111104 | LIGHT-EMITTING DEVICE CIRCUIT AND METHOD OF OPERATING THEREOF - The light-emitting device disclosed herein comprises a step down circuit and a current limit device, wherein the step down circuit prevents the current signal provided to the light-emitting device larger than the rating current value of the light-emitting device. Moreover, the current limit device only limits current signal while the power supply surges. The two stages protect circuit turn less power to heat. | 2014-04-24 |
20140111105 | DIMMER CIRCUIT AND LIGHTING APPARATUS USING THE SAME - A dimmer circuit and a lighting apparatus using the same are provided. The dimmer circuit comprises a dimmer, a rectifier, a sample-and-hold unit, an integral unit and a current holding circuit. The dimmer is coupled to an AC for modulating the AC into an alternating signal. The rectifier couples the dimmer and the AC for rectifying the alternating signal into a DC signal. The sample-and-hold unit is coupled to the rectifier for sampling the DC signal to obtain an average positive wave pulse. The integral unit is coupled to the sample-and-hold unit for integrating the average positive wave pulse to generate a DC voltage. The current holding circuit comprises a switch and a bleeder. The current holding circuit determines the on/off state of the switch according to a comparison between the DC voltage and a reference voltage, such that the DC signal passes through the bleeder or the switch. | 2014-04-24 |
20140111106 | BALLAST WITH TEMPERATURE COMPENSATION - A ballast for driving a gas discharge lamp includes an inverter configured to generate a lamp supply voltage signal, and a voltage regulator coupled to the inverter and configured to generate a regulation signal. The regulation signal is used by the inverter to maintain the lamp voltage signal at a substantially constant voltage. A thermistor circuit is coupled between the lamp supply voltage signal and the voltage regulator and configured to detect a temperature of the ballast. The lamp supply voltage signal is varied by the regulation signal in accordance with the detected temperature of the ballast. | 2014-04-24 |
20140111107 | LED DRIVING APPARATUS HAVING HOLDING CURRENT CIRCUIT AND OPERATING METHOD THEREOF - A LED driving apparatus having a holding current circuit and an operating method thereof are disclosed. The holding current circuit includes an input terminal, a holding resistor, a regulator, a first resistor, a second resistor, a setup resistor, a control unit, and a transistor. The holding resistor and the regulator, the first resistor and the second resistor, and the transistor and the setup resistor are coupled between the input terminal and ground terminal respectively. The control unit is coupled to the transistor, between the holding resistor and the regulator, and between the first resistor and the second resistor respectively. The control unit receives a first voltage between the holding resistor and the regulator and a second voltage between the first resistor and the second resistor and outputs a control signal to selectively control the transistor off. | 2014-04-24 |
20140111108 | SYSTEM CONTROL UNIT, LED DRIVER INCLUDING THE SYSTEM CONTROL UNIT, AND METHOD OF CONTROLLING STATIC CURRENT OF THE LED DRIVER - Embodiments of the present invention provide a light-emitting diode (LED) driver and method of controlling the static current of the LED driver. In some embodiments, the LED driver is configured to calculate output currents of a pulse form using a small number of parameters and adjust a gate control signal using the mean value of the output currents of a pulse form. Accordingly, the LED driver can be used to control a static current that flows through an LED array connected to a circuit on the secondary side of a transformer using a DC voltage or an AC voltage supplied to the primary side of the transformer. In some embodiments, the LED driver includes a power conversion unit, switching unit, transformer, zero current detection unit, and system control unit. In some embodiments, the system control unit is configured to adjust the gate control signal. | 2014-04-24 |
20140111109 | HIGH PRESSURE DISCHARGE LAMP LIGHTING DEVICE, PROJECTOR PROVIDED WITH THE SAME, AND HIGH PRESSURE DISCHARGE LAMP LIGHTING METHOD - A calculation processing sub-unit | 2014-04-24 |
20140111110 | PWM CONTROL FOR LEDS WITH REDUCED FLICKER WHEN USING SPREAD SPECTRUM SWITCHING FREQUENCIES - A technique to eliminate perceptible flickering by LEDs being dimmed by PWM pulses is disclosed. A controllable oscillator controls a switching frequency of a converter for supplying a regulated current or regulated voltage. The converter controls a first switch at a switching frequency. A varying second signal level is generated by a spread spectrum control (SSC) circuit for controlling the oscillator to vary the switching frequency during operation. A PWM dimming circuit generates a string of PWM pulses that control a switch in series with the LEDs. The SSC circuit is synchronized with the PWM pulses to generate the same second signal level at a start of each PWM pulse, such that the switching frequency of the converter is forced to be substantially the same at the start of each PWM pulse while the pulse widths are constant. The repeating driving current waveform eliminates perceptible flicker by the LEDs. | 2014-04-24 |
20140111111 | GAS DISCHARGE LAMP BALLAST WITH RECONFIGURABLE FILAMENT VOLTAGE - An amount of filament voltage supplied by a reconfigurable ballast may be adjusted based on a lamp type with which the ballast is operating. The filament voltage may be reconfigured dynamically and/or may be reconfigured via a user-provided value. An electronic dimming ballast may include a control circuit configured to control generation of the AC filament voltage in accordance with a reconfigurable AC filament voltage value. Reconfiguring an electronic dimming ballast may include reconfiguring an AC filament voltage applied by the electronic dimming ballast to a filament of a lamp installed in the electronic dimming ballast. Reconfiguring the AC filament voltage may include computing a hot-to-cold cathode resistance ratio associated with the filament. Reconfiguring the AC filament voltage may include determining whether the computed hot-to-cold cathode resistance ratio is within a range specified for the electronic dimming ballast. | 2014-04-24 |
20140111112 | LED FLUORESCENT LAMP - A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic fluorescent lamp ballast, capacitors connected to each of the external connection pins, diodes connected to each of the capacitors and a LED array connected between the diodes, wherein an first external connection pin, a first capacitor, a first diode, an LED array, a second diode, a second capacitor and a second external connection pin are connected in series. The LED lamp also further comprises a diode connected in anti-parallel with a series circuit of the second diode and the LED array, and another diode connected in anti-parallel with a series circuit of the first diode and the LED array. | 2014-04-24 |
20140111113 | SIMPLIFIED CURRENT SENSE FOR BUCK LED DRIVER - A current sense and feedback circuit is provided for a non-isolated Buck power converter to maintain constant current load regulation. The Buck converter may have a high side power switch and may include an input port, a switcher unit including a switch and a controller, an inductor coupled to the output, and a freewheeling diode for circulating the inductor current when the switch is open. The simplified current sense and feedback circuit of the power converter may include a current sense resistor module coupled to the freewheeling diode to provide a sense signal to the controller. The controller may also be coupled to the output of the power converter to sense an over voltage condition. The simplified current sense and feedback circuit may provide output regulation while maintaining a low component count, small size, and low loss that makes the power converter suitable for use in compact design applications. | 2014-04-24 |
20140111114 | Color Mixing and Desaturation with Reduced Number of Converters - A system is disclosed to automatically establish proper biasing for light sources in a color mixed projection system having multiple light sources which are active at the same time. Responsive to a feedback signal, a single DC-DC converter generates the bias voltage for the light sources. Comparators compare a headroom signal for each light source to a reference value to generate comparator output signals. The comparator output signals are processed by a channel selector and a digital filter/DAC module. The channel selector controls a switch to selectively provide and combine a headroom signal with an output of the digital filter/DAC module to create the feedback signal. By monitoring each headroom value, the bias voltage is adjusted, based on the feedback signal, until every headroom signal reaches the reference value thereby achieving sufficient biasing for every active light source in the color mixed projection system. | 2014-04-24 |
20140111115 | DISPLAY DEVICES HAVING NON-UNIFORM SUB-PIXEL SPACING AND METHODS THEREFOR - A display device ( | 2014-04-24 |
20140111116 | Organic Light Emitting Display Device - Disclosed is an organic light emitting display device. The organic light emitting display device includes a display panel, a plurality of first flexible circuit films, a plurality of first driving ICs, a plurality of second flexible circuit films, and a plurality of second driving ICs. The display panel includes a plurality of pixels including a pixel circuit connected to a gate line, a data line, and a high-level voltage line. The first flexible circuit films are connected to a first pad part of the display panel, and supply a high-level voltage to the high-level voltage line. The second flexible circuit films are connected to a second pad part of the display panel, and supply the low-level voltage to a cathode electrode layer. | 2014-04-24 |
20140111117 | Remote Communications Protocol - A format for controlling information between multiple masters and clients uses each of a plurality of ports over a specified line, where the specified line can be ethernet, and where the ports can be opened and closed, and where the ports are calculated based on the number assigned to the console, a console multiplier, and at least one increment that represents the kind of information where there are multiple kinds of information. | 2014-04-24 |
20140111118 | SENSOR SYSTEM FOR REFRIGERATOR - An interactive appliance is provided. The interactive appliance includes at least a housing, and an intelligent control disposed within the housing. One or more lighting devices are electrically connected to the intelligent control, as are one or more sensors. The sensors provide sensor data for the interactive appliance. The intelligent control is configured to alter operation of at least one of the one or more lighting devices based on data provided by the sensor to provide interactive feedback to a user of the interactive appliance. The feedback can include altering light intensity, color, consistency, or the like depending on the sensor data. Furthermore, the lighting device can be placed on a surface, such as an exterior surface of the housing of the appliance, or can be disposed within an interior portion of the appliance. | 2014-04-24 |
20140111119 | PHASE CONTROL WITH ADAPTIVE PARAMETERS - An apparatus to control an amount of current delivered from an AC power source to an electrical load includes a line terminal configured to be connected to the AC power source, a load terminal configured to be connected to the electrical load, a controllably conductive power switch in series electrical connection between the line terminal and the load terminal, and a switching circuit configured to control a conductive state of the controllably conductive power switch wherein the switching circuit is configured to automatically detect at least one electrical characteristic. | 2014-04-24 |
20140111120 | VEHICLE, POWER SUPPLY SYSTEM, AND METHOD FOR CONTROLLING POWER SUPPLY SYSTEM - When an ECU disconnects a second power storage device BAT | 2014-04-24 |
20140111121 | BATTERY CONFIGURATION FOR AN ELECTRIC VEHICLE - A power delivery system for an electric vehicle provides efficient power management for either continuous or intermittent high-performance operation, using a boost stage and an on-board charging circuit. A main battery, configured as a high-capacity power source, supplies power to the electric motor under normal load conditions. An auxiliary boost battery assists the main battery in supplying a high-level current at a higher discharge rate thereby causing the motor to operate in a high-performance drive mode. A charging circuit recharges the boost battery from the main battery during operation of the motor. The charging circuit also maintains a charge balance between the boost battery and the main battery when the two batteries have different chemistries. In one embodiment, participation of the boost battery in powering the electric motor can be controlled automatically according to sensed changes in the load. In another embodiment, power management can be based on timed intervals. | 2014-04-24 |
20140111122 | ELECTRICAL STORAGE SYSTEM, AND CONTROL METHOD FOR ELECTRICAL STORAGE SYSTEM - A first electrical storage stack is connected in series with a second electrical storage stack. A current interrupter is configured to interrupt a current path by being removed from the current path. First and second detection line are respectively connected to first and second terminals of the first electrical storage stack. The second electrical storage stack is connected to the second terminal of the first electrical storage stack via the current interrupter. A third detection line is connected to a portion of the current path, located on the second electrical storage stack side of the current interrupter. A controller is configured to control charging and discharging operations of each of the first and second electrical storage stacks on the basis of the voltage of the first electrical storage stack, the voltage being detected via the first detection line and the third detection line. | 2014-04-24 |
20140111123 | Drive Unit for an Electric Motor - A drive unit for an electric motor comprises a multilevel inverter and a battery. The battery comprises at least one battery module train comprising a plurality of battery modules connected in series, each module having at least one battery cell and one coupling unit. The at least one battery cell is connected between a first input and a second input of the coupling unit. The coupling unit is designed to connect the at least one battery cell between two terminals of the battery module in response to on a first control signal and to connect the two terminals in response to a second control signal. Several center taps are arranged on the battery module train, by means of which a potential can be tapped at a connection between two battery modules respectively. Inputs of the multilevel inverter are connected to the taps. | 2014-04-24 |
20140111124 | SYSTEMS AND METHODS FOR BRAKING AN ELECTRIC MOTOR - A motor controller for an electric motor having a stator and a rotor. The motor controller includes a power input for receiving AC power from a power source; a control input for receiving a control signal from a control; and circuitry for switching power from the power source to the electric motor in response to the control signal. The circuitry is operable to: apply a braking waveform to the stator while the rotor is rotating; monitor a reactive power of the stator; detect an increase in the reactive power of the stator to determine the rotor has substantially stopped rotating; and remove the braking waveform from the stator in response to detecting the increase in the reactive power. | 2014-04-24 |
20140111125 | Traction Motor Retarding Flux Reference - A traction motor system calculates motor flux by generating a real time effective resistance of a resistance grid calculated from motor torque and measured voltage on a DC link. Calculating effective resistance avoids solely relying on DC link voltage, which can be influenced by conditions such as wheel slip and drop out of one or more resistance grids. The effective resistance calculation is based on nominal motor values using known power levels and conditions. From these nominal values and the effective resistance, various scaling factors based on actual motor power can be generated and used to adjust a nominal flux reference to more accurately reflect actual motor flux. The scaling factors include power and torque scaling factors and a resistance scaling factor that is active during conditions such as wheel slip. | 2014-04-24 |
20140111126 | Adaptive E-Drive Operation for Electrified Vehicle - A system is configured to receive vehicle state input, and in response to the vehicle state input, select an operational mode for PWM switching of electronics in a power conversion circuit of a hybrid electric vehicle electric drive system (EDS). Vehicle state input can pertain to EDS state, engine state, and the presence of alternative noise sources, such as audio equipment, climate control equipment, and lowered windows. Various operational modes can include a noise reduction mode in which EDS noise is reduced, a loss reduction mode in which EDS losses are reduced, and a default mode, which can be designed to maximize fuel efficiency. A system can be configured to provide a PWM implementation strategy based on operational mode selection. By way of example, a PWM implementation strategy can comprise random PWM, continuous PWM, discontinuous PWM and fixed frequency PWM. | 2014-04-24 |
20140111127 | Sensorless Dynamic Driving Method and System for Single Phase Alternating Current Permanent Magnet Motor - A sensorless driving method for a single phase alternating current permanent magnet motor is described. The method comprises a starting drive mode and a stable drive mode. The starting drive mode comprises inputting a first current to drive a rotor to rotate to a stable position, the first current comprising a pulse current flowing in a first direction for a first predetermined starting time interval and a constant current flowing in a second direction contrary to the first direction for a second predetermined time interval, terminating the first current, determining generation of a back electromotive force, detecting a first zero crossing point of the back electromotive force, inputting a second current for a first charge time interval, waiting for a first post-charge time interval, detecting a second zero crossing point to define a previous half period between the first zero crossing point and the second crossing point, inputting the second current for a second charge time interval, waiting for a second post-charge time interval, and detecting speed of the rotor to compare the speed to a predetermined value. The second current flows in a direction in which the back electromotive force is generated. | 2014-04-24 |
20140111128 | SAFETY FUNCTION CONTROL FOR AN ELECTRIC MACHINE AND METHOD OF OPERATING THE ELECTRIC MACHINE - An apparatus and a method actuate a frequency converter of an electric machine having a safety function, in particular a safe-torque-off (STO) function. Wherein, by a preferably clocked converter circuit, an electrically isolated output voltage is generated from an input voltage, from which output voltage a control signal is generated for the frequency converter for the operation thereof in accordance with standards and for triggering the safety function. An actuation signal is generated for a semiconductor switch which is periodically connected to the input voltage, and the output voltage is limited when the output voltage exceeds a switching threshold. | 2014-04-24 |
20140111129 | UNIT COMPRISING AN ELECTRIC POWER SOURCE INCLUDING AT LEAST TWO ELEMENTS OF DIFFERENT TECHNOLOGIES AND AN INVERTER FOR CONTROLLING AN ALTERNATING-CURRENT ELECTRIC MOTOR - An installation for an electric motor includes an electrical energy source with elements of different technologies and an inverter for controlling an AC electric motor. The inverter includes an AC current generator for delivering current to a terminal strip to be connected to phases of the electric motor, a supply line, current sensors on certain phases supplying the electric motor, a current sensor on the supply line, an input for receiving information that includes a limit current of the source and a requested-torque setpoint, and a controller for controlling phase currents of the electric motor as a function of the setpoint while maintaining a current of the supply line at an acceptable value as a function of the limit current of the source. The installation makes it possible to impose a maximum current on the current generator without risk of impairing the current generator. | 2014-04-24 |
20140111130 | MOTOR DRIVE DEVICE - A motor drive device is provided which allows control to be performed depending on a position of magnetic poles of a rotor even when a motor rotor angle sensor malfunctions. The device controls a motor for driving a wheel of an electric vehicle, depending on the position of the magnetic poles by using an angle sensed by the angle sensor provided at the motor. The device includes an estimator estimating an angle of a rotor of the motor without using a rotation sensor; a sensor malfunction determiner determining a malfunction of the angle sensor; and a switcher causing control to be performed using a angle estimated by the estimator instead of the angle sensed by the angle sensor once the determiner determines that the angle sensor malfunctions. | 2014-04-24 |
20140111131 | METHOD AND APPARATUS FOR WINDOWLESS BEMF DETECTION - A zero crossing of a motor current waveform at the terminal of a brushless sensor-less multi-phase DC motor is determined without opening a non-drive period while the motor is continuously driven. A voltage level at a first threshold at the terminal of a motor is detected. At a first time, a current flow switch connected to the terminal is switched. At a second time, a voltage level at a second threshold is detected at the terminal of the motor. The zero crossing is determined between the first time and the second time and used to synchronize the driving of the motor. | 2014-04-24 |
20140111132 | APPARATUS AND METHOD FOR CONTROLLING MOTOR - There are provided an apparatus and a method for controlling a motor. The apparatus includes: a comparing unit comparing a target value and an output value and calculating error values therefrom; and a controlling unit controlling the motor by selecting one of a proportional control and a proportional integral control according to an average error value calculated by averaging the error values for each section having a predetermined interval and adjusting a gain value of the selected control. | 2014-04-24 |
20140111133 | HOBBY SERVO MOTOR LINEAR ACTUATOR SYSTEMS - Hobby servo motor linear actuator systems are provided. In certain circumstances, a linear actuator system includes a lead screw attachment mechanism and a lead nut. The lead screw attachment mechanism is configured to be rotatably connected to an output shaft of a hobby servo motor assembly. The lead nut is configured to move linearly along the lead screw attachment mechanism as it is rotated. The system is optionally either open-looped or closed-loop. The lead screw attachment mechanism has an outer surface that can include multiple different types of threads such as, but not limited to, gear teeth and screw threads. The hobby servo motor assembly may include one hobby servo motor or multiple hobby servo motors that work together. | 2014-04-24 |
20140111134 | Mitigation of Harmonic Currents and Conservation of Power in Non-Linear Load Systems - An AC power controller system applies three-phase AC operating power to an induction motor that drives a non-linear mechanical load. A primary low pass filter is connected in series between branch phase conductors and a power controller of the type that uses gate-controlled switching thyristors for controlling power to the motor. KVAR capacitors connected between the power controller and the induction motor phase windings form a secondary low pass filter across the controller output terminals. The primary and secondary low pass filters isolate the power controller and induction motor with respect to spurious noise and harmonics generated by local as well as remote sources, and also improve real power transfer efficiency from the power generating source to the induction motor by transforming the effective impedance of the power source and induction motor load. | 2014-04-24 |
20140111135 | SOLAR CELL AND PORTABLE ELECTRONIC DEVICE - A solar cell and a portable electronic device are provided. The solar cell includes a semiconductor material configured to absorb light for generating a current. The solar cell further includes a positive contact and a negative contact. In addition, the negative contact is configured to couple with an external interface. The portable electronic device includes an energy storage unit. The portable electronic device also includes a semiconductor material configured to absorb light for generating a current, a positive contact, and a negative contact. The negative contact of the portable electronic device is configured to couple with an external interface. | 2014-04-24 |
20140111136 | Pervasive Power Generation System - A power generation system includes a plurality of energy conversion devices for generating a plurality of power signals based on one or more sensed environmental conditions. The system further includes a plurality of power conditioning circuits each coupled to one or more of the energy conversion devices for receiving the power signals and storing energy in an energy storage system. The system also includes a selection circuit coupled to at least one of the power conditioning circuits and receiving a first input power signal from one of the power conditioning circuits and a second input power signal. The selection circuit is configured to deliver an output power signal representing a selection from between the first and second input power signals based on a relative voltage level of the first and second input power signals. A method of power generation, and associated power module, are also disclosed. | 2014-04-24 |
20140111137 | CHARGING APPARATUS - A charging apparatus may include an increase and decrease unit configured to increase and decrease charging current to the storage battery; a detection unit configured to detect a temporal change of a voltage or current supplied from a power generation source to the power conditioner; and a control unit configured to control the increase and decrease unit to increase the charging current over time, to continue increasing the charging current when a temporal amount of decrease of the voltage or current detected by the detection unit is smaller than a predetermined threshold, and to decrease the charging current by a predetermined amount when the temporal amount of decrease of the voltage or the current is equal to or larger than the predetermined threshold. | 2014-04-24 |
20140111138 | POSITION-BASED CAR MODE ACTIVATION - A system for transferring power wirelessly for charging a device is provided. The system includes a detector configured to detect a chargeable device, the chargeable device having an available functionality and configured to initiate a charging request. The system further includes a wireless power transmitter configured to transmit power wirelessly to the chargeable device at a level sufficient to charge or power the chargeable device. The system further includes a processor configured to determine a type of user associated with the chargeable device and to configure the available functionality of the chargeable device based on the determined type of user and in response to the charging request. | 2014-04-24 |
20140111139 | HYBRID BATTERY CHARGER - A hybrid battery charger is disclosed that includes a linear battery charging circuit for providing vehicle starting current and battery charging and a high frequency battery charging circuit that provides battery charging current. The linear battery charging circuit and the high frequency battery charging circuits are selectively enabled to provide vehicle starting current, maximum charging current and optimum efficiency. | 2014-04-24 |
20140111140 | ELECTRONIC DEVICE WITH CONNECTION INTERFACE SUPPORTING SIGNAL COMMUNICATION AND CHARGING OPERATION - An electronic device is provided. When the electronic device is at a power exhaustion state and a first external device with a charging function is coupled to a connection interface to provide a first supply voltage to a power pin of the connection interface, a voltage regulation unit transforms the first supply voltage to a first operation voltage, and a storage unit powered by the first operation voltage outputs device information of the electronic device to the first external device through a signal transmitting/receiving pin set of the connection interface. When the first external device provides a second supply voltage to the power pin in response to the device information, the electronic device enters a charging mode. In the charging mode, the charging unit provides a charging voltage according to the second supply voltage to charge the battery unit and provides a second operation voltage to a processing unit. | 2014-04-24 |
20140111141 | BATTERY CHARGING METHOD AND DEVICE USING THE SAME - The battery charging method includes: defining first to third charging regions according to a first predetermined voltage and the charging saturation voltage of a battery; determining a charging region of the battery according to the initial voltage of the battery, and determining a threshold charging current according to the charging regions of the battery; charging the battery according to the threshold charging current; continuously measuring a plurality of voltages in the battery during a predetermined period and determining an average voltage of the battery; determining if the previously determined charging region of the battery has changed according to the average voltage of the battery; and when the charging region of the battery has changed and the average voltage of the battery is lower than the charging saturation voltage, then lowering the threshold charging current and repeating the above steps. | 2014-04-24 |
20140111142 | ELECTRONIC APPARATUS AND METHOD OF CONTROLLING THE SAME - A method of controlling an electronic apparatus includes receiving a user input to select an operation mode of the electronic apparatus in a power-off state of the electronic apparatus, supplying power only to one or more portions of components of the electronic apparatus required to operate in a battery charging state display mode when the operation mode selected according to the received user input is the battery charging state display mode, and displaying a batter charging state of a battery when the power is supplied to the components required to operate in the battery charging state display mode. | 2014-04-24 |
20140111143 | APPARATUS COMPRISING POWER STRIP AND BATTERY - An exemplary aspect comprises an apparatus, comprising: a cord component connected to a plug component at a first end; a power strip component connected to the cord component at a second end of the cord component; the power strip component comprising one or more USB dedicated charge ports and one or more AC outlets; a charging cavity within the power strip component suitable to receive a removable battery having a battery electrical contact; and a power strip electrical contact located in the charging cavity that connects with the battery electrical contact and charges the battery when the battery is inserted into the charging cavity of the power strip component. | 2014-04-24 |
20140111144 | CHARGE CONNECTOR LOCKING APPARATUS - The present invention relates to a charging connector locking apparatus. The apparatus includes a coupling latch installed in an inlet housing of the inlet connector to be supported by a resilient member so as to be rotatable by a predetermined angle, and having an interlocking curved surface by which a tip end of the plug latch is guided; a fixing rod moved to be positioned at a side of the coupling latch facing the plug latch to prevent movement of the plug latch in a release direction; and a driving source for providing driving power for movement of the fixing rod. | 2014-04-24 |
20140111145 | CHARGING CONTROL APPARATUS AND CHARGING CONTROL METHOD FOR SECONDARY BATTERY - A charging control apparatus for a secondary battery, including a current control apparatus for, upon charging for a secondary battery from an electric generator regenerating kinetic energy as regenerative energy, performing control so as to suppress charging current for the secondary battery at a start of charging to a predetermined suppression rate with respect to charging current at the start of charging in the case that the charging current is not suppressed, and decrease the suppression rate as time elapses. | 2014-04-24 |
20140111146 | CHARGING DEVICE - A charging device includes a fixing member fixed to a fixed object, a cable holder mounted on the fixing member in an attachable and detachable manner and a charging cable unit mounted on the cable holder. | 2014-04-24 |
20140111147 | MODULAR POCKET WITH INDUCTIVE POWER AND DATA - A modular pocket system includes a modularly mountable pocket modularly mountable to a tactical garment. An insert is mounted in the pocket to align and closely inductively couple a primary inductive coil and related primary drive circuits in the insert to a secondary inductive coil and related secondary charging circuits in a portable electronic device mountable into the insert for the inductively coupled transmission of power between the coils so to transmit power to the portable device, where the device has a rechargeable energy storage component electrically connected to the secondary inductive coil and secondary charging circuits. | 2014-04-24 |
20140111148 | WIRELESS POWER TRANSMISSION DEVICE - A wireless power transmission device includes a main body and a position-limiting plate. The main body includes a triggering button. The triggering button is located at a first side of the main body. The position-limiting plate is located at a second side of the main body and movable relative to the main body. When an electronic device is placed on the main body and contacted with the triggering button, the triggering button issues an enabling signal to the position-limiting plate. In response to the enabling signal, the position-limiting plate is moved toward the main body in order to fix the electronic device on the main body. In a case that an electric current provided to the triggering button is interrupted, the triggering button stops issuing the enabling signal. Consequently, the position-limiting plate is moved away from the main body and separated from the electronic device. | 2014-04-24 |
20140111149 | BATTERY AND CHARGING SYSTEM USING THE SAME - A battery includes a wireless unit, a battery unit, a charging unit, and a control unit. The wireless unit is configured to capture electromagnetic wave in the air. The charging unit is configured to convert the electromagnetic wave captured by the wireless unit to the charging current, and provide the charging current to the battery unit to charge the battery unit. The control unit is configured to detect a parameter value of the battery unit, control the wireless unit to capture the electromagnetic wave according to the parameter value of the battery unit, and further control the charging unit to convert the electromagnetic wave captured by the wireless unit to the charging current to charge the battery unit. | 2014-04-24 |
20140111150 | CURSOR CONTROL DEVICE - A cursor control device includes a main body, a primary circuit board, a conducting member, a chargeable battery, and a wireless signal receiver. The conducting member is connected with the primary circuit board. The main body includes a charging slot. A first bulge is protruded from an inner periphery of the charging slot. A recess is formed in an outer shell of the wireless signal receiver. The wireless signal receiver has a charging plate member exposed to the outer shell. When the wireless signal receiver is transferred through the charging slot, the first bulge is accommodated within the recess of the outer shell of the wireless signal receiver, and the charging plate member is contacted with the conducting member. When the wireless signal receiver is connected with a computer, the electric power from the computer is transmitted to the chargeable battery. | 2014-04-24 |
20140111151 | SYSTEM AND METHOD FOR INDUCTANCE COMPENSATION IN WIRELESS POWER TRANSFER - This disclosure provides systems, methods and apparatus for wireless power transfer. In one aspect an apparatus for wirelessly transferring power from a charging power source to a device is provided. The apparatus includes a first strand wound in one or more turns and operationally coupled to the charging power source and a second strand wound together with the first strand in one or more turns and operationally coupled to the charging power source. The apparatus further includes an inductor circuit connected to the first strand and disconnected from the second strand. The inductor circuit is further configured to reduce a current difference between a first current flowing through the first strand and a second current flowing through the second strand. | 2014-04-24 |
20140111152 | Non-Contact Charging Device - A non-contact charging device is provided with: a power receiving device which has at least a power receiving coil which receives electrical power, in a non-contact manner, from a power transmitting coil by means of a magnetic connection; a battery which is charged by the electrical power; a charge-state detection means, which detects the charge-state of the battery; a position detection means which detects the position of the power transmitting coil; and a charge time calculation means, which calculates a first charge time for the battery according to the charge-state as detected by the charge-state detection means and a first position of the power transmitting coil as detected by the position detection means. | 2014-04-24 |
20140111153 | WIRELESS POWER TRANSMITTERS AND RECEIVERS, AND METHOD FOR PERMITTING A WIRELESS POWER RECEIVER BY A WIRELESS POWER TRANSMITTER - An apparatus and method are provided for permitting a wireless power receiver to be charged by a wireless power transmitter. The method includes generating a Power Receiving Unit (PRU) control signal including permission information indicating charging permission for the wireless power receiver; and transmitting the PRU control signal to the wireless power receiver. | 2014-04-24 |
20140111154 | FOREIGN OBJECT DETECTION IN WIRELESS ENERGY TRANSFER SYSTEMS - The disclosure features apparatus, methods, and systems for wireless power transfer that include a power source featuring at least one resonator, a power receiver featuring at least one resonator, a first detector featuring one or more loops of conductive material and configured to generate an electrical signal based on a magnetic field between the power source and the power receiver, a second detector featuring conductive material, and control electronics coupled to the first and second detectors, where during operation, the control electronics are configured to measure the electrical signal of the first detector and compare the measured electrical signal of the first detector to baseline electrical information for the first detector to determine information about whether debris is positioned between the power source and the power receiver. | 2014-04-24 |
20140111155 | Charging Station and Method for Inductively Charging the Traction Battery of an Electronically Driven Vehicle - A charging station for charging a vehicle includes a charger, a camera, a positioner, and a controller. The charger has a transformer part by which electrical energy can be transferred to a corresponding transformer part arranged behind the vehicle license plate when the charger is in a position relative to the license plate at which the transformer parts sandwich the license plate. The camera generates positional information indicative of positioning between the charger and the license plate. The positioner can move the charger within a range of motion. When the license plate is within the range of motion, the positioner moves the charger based on the positional information to the position at which the transformer parts sandwich the license plate. The controller uses the positional information to generate instructions indicative on how to drive the vehicle to a position in which the license plate is within the range of motion. | 2014-04-24 |
20140111156 | WIRELESS POWER TRANSMISSION/RECEPTION APPARATUS AND METHOD - Disclosed herein is a wireless power transmission/reception apparatus. The wireless power transmission/reception apparatus includes a wireless power transmission unit and a wireless power reception unit. The wireless power transmission unit receives power, generates a wireless power signal to be wirelessly transmitted, wirelessly transmits the generated wireless power signal in a magnetic resonance manner, receives a returned wireless power signal and detects the number of power consumption devices, and wirelessly transmits a wireless power signal using resonance frequency appropriate for the number of power consumption devices. | 2014-04-24 |
20140111157 | CHARGING APPARATUS - A charging apparatus includes a fixed member to be fixed to a fixed object, a charging cable unit including a cable, a connecting portion connected to the cable and to be connected to a charging unit provided for a vehicle, a control unit controlling electric power to be supplied to the charging unit, and a case housing the control unit, a cable holder including a case housing section housing the case so as to be pulled out, the charging cable unit being arranged in the cable holder and the cable holder being attachable/detachable to/from the fixed member, and a restricting portion restricting exiting of the case housed in the case housing section from the case housing section when the cable holder is fitted to the fixed member. | 2014-04-24 |
20140111158 | CHARGING CABLE HOUSING DEVICE - A charging cable housing device includes: a charging connector; a casing having an internal space and extending along a top-bottom direction; a charging cable housed in the internal space of the casing, and having one end which is extended outward from an opening provided in the casing and to which the charging connector is connected, and the other end from which electric power is supplied; and a cable reel housed in the internal space of the casing and located lower than the opening, with the other end of the charging cable wound up around the cable reel. | 2014-04-24 |
20140111159 | Portable Device Charger - A charger for charging electronic devices, including a top having a perforated portion and a housing, the housing including a rechargeable battery; one or more cables electrically coupled to the battery; one or more cable retractors; two or more legs extending from the housing supporting the charger on a surface; one or more windows arranged between the legs that extend only partially toward the surface such that the cables and a charging head may pass through the space between the windows and the surface when the cables are in an extended state. | 2014-04-24 |
20140111160 | ELECTRICAL STORAGE SYSTEM - An electrical storage system includes: serially connected electrical storage blocks each including at least one electrical storage element; a voltage detection circuit connected to each electrical storage block via voltage detection lines; a protection circuit including an overvoltage protection element connected in parallel with each electrical storage block via the voltage detection lines and a first resistor connected in series with the overvoltage protection element; a discharge circuit connected in parallel with each overvoltage protection element via the voltage detection lines and in series with the first resistor, the discharge circuit including a second resistor having a larger resistance value than the first resistor; and a controller detecting an abnormality in the overvoltage protection elements by, while the electrical storage elements are not connected to the load, comparing a voltage of a discharging first electrical storage block with a voltage of a non-discharging second electrical storage block. | 2014-04-24 |
20140111161 | BATTERY PACK - A battery pack including: a battery unit; a diode unit on charge and discharge pathways to control power flow of the charge and discharge pathways; and an insulating wall between the battery unit and the diode unit and mutually insulating the battery unit and the diode unit. | 2014-04-24 |
20140111162 | Method for operating a storage device for storing electrical energy, and storage device for storing electrical energy - A method for operating a storage device for storing electrical energy, having at least two storage cells. The storage cells are charged with the aid of a physical charge quantity provided by an electrical charging device, and a physical variable is monitored in each case in the storage cells. As a function of the monitored variables, a control signal is transmitted to the charging device for controlling same, and the charge quantity is successively reduced as a function of the control signal. A related storage device for storing electrical energy is also described. | 2014-04-24 |
20140111163 | Battery Energy Storage System - In order to provide a charge/discharge technology for controlling an assembled battery system without promoting degradation or reduction in the lifetime of the assembled battery system, the assembled battery system includes a function for controlling charge and discharge power of a plurality of units each including a secondary battery and a power converter as one unit, the plurality of units being electrically connected in parallel to each other. When each unit performs charge or discharge by at least one or more times, charge and discharge of the unit are controlled so as not to be performed until a predetermined pause time period elapses. | 2014-04-24 |
20140111164 | BATTERY CONTROL DEVICE AND BATTERY SYSTEM - An object of the invention is to provide a battery control apparatus capable of accurately obtaining permissible charging or discharging power in keeping with variation of the internal resistance of a battery. The battery control apparatus of this invention includes an internal resistance table in which the internal resistance value of single cells corresponding to the temperature and state of charge thereof are described in association with each of charging or discharging duration time of the single cells. The battery control apparatus calculates a permissible charging current or a permissible discharging current by using the internal resistance value described in the internal resistance table and controls the charging or discharging of the single cells in accordance with the current value thus obtained. | 2014-04-24 |
20140111165 | Method for Charging a Battery of a Vehicle - A method for charging a vehicle battery of a vehicle connected to a charging station involves determining by the vehicle of a first charge profile as a function of a maximum power rating of the charging station, a target state of charge, and a predefined charge period, and checking by the vehicle as to whether the target state of charge can be achieved within the predefined charge period. | 2014-04-24 |
20140111166 | CIRCUITS FOR CHARGING BATTERIES AND BOOSTING VOLTAGES OF BATTERIES, AND METHODS OF CHARGING BATTERIES - A circuit may comprise a direct current (DC)/DC boost converter connected to a battery that includes a plurality of cells; a DC link connected between the DC/DC boost converter and an inverter; and/or a charging circuit connected between the battery and the DC link. The charging circuit may be connected to the DC/DC boost converter in parallel. A method of charging a battery using a regenerative energy of a motor may include storing the regenerative energy of the motor by using a converter with a multi-winding transformer, selecting a cell to be charged from among a plurality of cells included in the battery, and transferring the stored regenerative energy to the selected cell by using the converter. | 2014-04-24 |
20140111167 | VOLTAGE REGULATOR AND METHODS FOR SIMULATING REACTIVE POWER IN PARALLEL POWER GENERATION SYSTEMS - Systems, methods, and a voltage regulator are provided for tuning reactive droop compensation of a generator in a parallel power generation system. The voltage regulator is configured to compute a simulated droop compensation voltage for the generator and control an excitation signal to the generator based at least in part on the simulated droop compensation voltage. | 2014-04-24 |
20140111168 | Synchronous Switching Power Converter with Zero Current Detection, and Method Thereof - The synchronous switching power converter comprises an inductor; a down bridge transistor; and a zero current detection circuit comprising a zero current comparator for receiving a fixed comparing level at a negative input end for comparison to change state of a comparing result; a delay unit, for delaying the comparing result to change state of a turn off signal according to a compensation voltage, to turn off the down bridge transistor when determining current on the inductor is zero; a transient state adjusting circuit for indicating a transient period when detecting state of the turn off signal is changed; and an integrator for integrating the compensation voltage by analog manner to adjust value of the compensation voltage and providing to the delay unit within the transient period; wherein the zero current comparator determines the integrator to integrate positively or negatively within the transient period. | 2014-04-24 |
20140111169 | Systems and Methods of Auto-configurable Switching/Linear Regulation - The systems and methods of auto-configurable switching/linear regulation disclosed herein enable a device to operate in both DC-to-DC switching regulation and linear regulation applications. The systems and methods disclosed herein differentiate between switching and linear mode. If the application is for a linear regulator, there will only be a capacitor on the output. If the application is for switching mode regulation, there will be an inductor and a capacitor on the output. Then based on the determination, the mode is selected and the hardware is converted into switching regulator operation or linear regulator operation. | 2014-04-24 |
20140111170 | BOOST CONVERTER CONTROL - Simple and efficient techniques for closed loop control of a boost converter. In an aspect, a current feed-forward (CFF) mode of operation includes providing current information to a control logic block controlling transistor switches of the boost converter to advantageously smooth the signals present in the closed loop control of the system. In another aspect, a modified peak current (MPC) mode of operation includes providing a simplified control mechanism based on a peak current mode of operation. Both CFF mode and MPC mode may share similar circuit elements, allowing a single implementation to selectively implement either of these modes of control. Further techniques are provided for determining average current information for the logic block. | 2014-04-24 |
20140111171 | SWITCHING CONTROL CIRCUIT AND CONTROL METHOD THEREOF - A switching control circuit includes voltage application means that applies a first voltage to a gate of a power device in a first period and applies a second voltage to the gate of the power device in a second period, wherein the first period starts when the power device is turned on; current detection means that detects whether a current flowing through the power device exceeds a threshold; and voltage decrease means that decreases the voltage with a first speed if the current detection means detects that the current exceeds the threshold in a second detection period, decreases the gate voltage with a second speed, lower than the first speed, if the current detection means detects that the current exceeds the threshold in a third detection period, and does not decrease the gate voltage if the current detection means detects that the current exceeds the threshold in the first period. | 2014-04-24 |
20140111172 | DC/DC CONVERTER AND GAME MACHINE USING IT - The present disclosure is to provide a DC/DC converter capable of suppressing increase in the ripple amount of the output voltage in association with switching of the number of drive phases. N (N is an integer equal to or larger than 2) switching circuits each generate a switching voltage at the switching node according to an input pulse signal. A phase controller dynamically switches the number K (K is an integer equal to or smaller than N) of drive phases according to the state of a DC/DC converter at the time. A pulse modulator generates a pulse signal whose frequency changes according to the number K of drive phases. A distributor selects K switching circuits among the N switching circuits and distributes the pulse signal to each of the selected K switching circuits with a phase difference of (360/K) degrees. | 2014-04-24 |
20140111173 | LOW DROP-OUT REGULATOR - There is provided a low drop-out regulator. The low drop-out regulator includes a reference voltage generating unit converting input power to generate a reference voltage; an amplifier comparing the reference voltage and a feedback voltage to output a gate signal; a pass transistor array unit including a first transistor and a second transistor respectively including a gate receiving the gate signal; a voltage detector detecting the feedback voltage and an output voltage by using a switching operation of the pass transistor array unit; and a controller shutting off the gate signal applied to either of the first transistor or the second transistor, according to the reference voltage and the input power. | 2014-04-24 |
20140111174 | Magnetic Field Cancellation in Switching Regulators - This invention uses new switching regulator structures to split single magnetic loops into multiple magnetic loops, with linked opposing magnetic fields, to cause a cancelling effect, resulting in a much lower overall magnetic field. This results in lower EMI. In one embodiment, synchronously switched transistors are divided up into parallel topside transistors and parallel bottomside transistors. The topside transistors are positioned to oppose the bottomside transistors, and bypass capacitors are connected between the pairs to create a plurality of current loops. The components are arranged to form a mirror image of the various current loops so that the resulting magnetic fields are in opposite directions and substantially cancel each other out. Creating opposite current loops may also be achieved by forming the conductors and components in a FIG. | 2014-04-24 |
20140111175 | UNIVERSAL POWER SUPPLYING APPARATUS AND UNIVERSAL POWER SUPPLYING METHOD - There are provided a universal power supplying apparatus and a universal power supplying method that can be universally used for various types of devices having a variety of voltage and current levels of a driving power. The universal power supplying apparatus includes a power supplying unit that converts an input power into a driving power having a previously set voltage level and supplies the converted power, a power recognizing unit that outputs a recognized voltage having the previously set voltage level to an output terminal from which power is output to recognize connection of a device, and controls a power output of the power supplying unit according to a detected rated output, and a detecting unit that provides a detection voltage having the previously set voltage level to the output terminal. | 2014-04-24 |
20140111176 | POWER SUPPLY FILTER AND ELECTRONIC CIRCUITRY INCLUDING THE SAME - A power supply filter includes a first filter circuit and a second filter circuit connected in parallel with each other across supply voltage input terminals. The first filter circuit has such a low-pass characteristic that a gain of the first filter circuit is higher than that of the second filter circuit in a first band which is a low band. The second filter circuit includes a serially-inserted resistive element and has such a high-pass characteristic that the gain of the second filter circuit is higher than that of the first filter circuit in a second band which is a high band. | 2014-04-24 |
20140111177 | DC-DC CONVERTER AND METHOD FOR DRIVING SAME - A voltage conversion circuit includes a first signal generating unit, a signal processing unit, and a voltage converting unit. The first signal generating unit generates a first pulse width modulation (PWM) signal. The signal processing unit includes a second signal generating unit, a first logic unit, and a second logic unit. The second signal generating unit generates a second PWM signal. A frequency of the first PWM signal is different from a frequency of the second PWM signal. The first logic unit performs an AND operation to the first and second PWM signals to obtain a first control signal. The second logic unit performs a NOT operation on the first control signal to obtain a second control signal. The voltage converting unit converts a first direct current (DC) voltage into a second DC voltage under control of the first control signal and the second control signal. | 2014-04-24 |
20140111178 | TRANSITIONING FROM ENVELOPE TRACKING TO AVERAGE POWER TRACKING - An envelope tracking power supply and an offset capacitive element are disclosed. The offset capacitive element is coupled between a switching output and an analog output of the envelope tracking power supply, which operates in one of an envelope tracking mode, a transition mode, and an average power tracking mode. During the envelope tracking mode, the envelope tracking power supply provides an envelope power supply signal using both the switching output and the analog output. During the transition mode, the envelope tracking power supply drives a voltage across the offset capacitive element from a first voltage to a second voltage, such that during a transition from the envelope tracking mode to the transition mode, the offset capacitive element has the first voltage, and during a transition from the transition mode to the average power tracking mode, the offset capacitive element has the second voltage. | 2014-04-24 |
20140111179 | PHASE CURRENT BALANCING FOR MULTIPHASE CONVERTERS - A DC-DC converter includes a first differential voltage sensor to detect a first inductor current by sensing a first differential voltage across a first power stage of the DC-DC converter. A second differential voltage sensor detects a second inductor current by sensing a second differential voltage across a second power stage of the DC-DC converter. An integrator stage combines the first differential voltage from the first power stage and the second differential voltage from the second power stage to generate a compensation signal to adjust current balancing for the DC-DC converter. | 2014-04-24 |
20140111180 | METHOD AND APPARATUS FOR CURRENT SENSING IN POWER OVER ETHERNET (PoE) SYSTEMS - Systems and methods are provided for power control. In some implementations, a power control system includes a first transistor having a drain coupled to a first conductor (e.g., first pair of wires of an Ethernet cable), a second transistor having a drain coupled to a second conductor (e.g., second pair of wires of the Ethernet cable), a current sensor coupled to sources of the first and second transistors, and a current management circuit. The current management circuit may detect drain voltages of the first transistor and the second transistor, and adjust gate voltages of the first transistor and the second transistor to keep the drain voltages of the first transistor and the second transistor approximately equal. The current management circuit may detect a current through the current sensor, and adjust the gate voltages of the first transistor and the second transistor to limit the detected current to a current limit. | 2014-04-24 |
20140111181 | ELECTRONIC CIRCUIT AND SEMICONDUCTOR DEVICE - An electronic circuit includes: first circuits each including a first FET having a source supplied with at least one of a first voltage and a second voltage; and a second circuits each of which is associated with a respective one of the first circuits, and generates a back bias voltage applied to the first FET so as to change in accordance with a change of at least one of the first and second voltages. | 2014-04-24 |