37th week of 2014 patent applcation highlights part 25 |
Patent application number | Title | Published |
20140252959 | LUMINAIRE, AND LUMINAIRE CONTROL METHOD - In a luminaire, a diffusing unit diffuses the light, which has been emitted from a light source unit, according to light transmissibility. A position information obtaining unit obtains position information which at least indicates the position of a person. A luminance obtaining unit obtains the luminance of a luminous part at the position specified in the position information. A calculating unit calculates, according to the light transmissibility and the luminance of the luminous part, a luminance uniformity ratio which indicates the uniformity in the luminance distribution in the luminous part at the position specified in the position information. According to the luminance and the luminance uniformity ratio, a control unit varies the light transmissibility and varies the light output of the light source unit. | 2014-09-11 |
20140252960 | DRIVER ARRANGEMENT AND METHOD FOR DRIVING AT LEAST ONE LIGHT-EMITTING DIODE - A driver arrangement comprises a current regulator ( | 2014-09-11 |
20140252961 | LIGHTING DEVICES WITH SENSORS FOR DETECTING ONE OR MORE EXTERNAL CONDITIONS AND NETWORKED SYSTEM USING SUCH DEVICES - Exemplary lighting devices have sensors, intelligence in the form of programmed processors and communication capabilities. Such a device is configured to monitor one or more conditions external to a lighting device not directly related to operational performance of the respective lighting device. One or more such devices can work in a networked system, to support a variety of applications separate and in addition to the lighting related functions of the devices(s). | 2014-09-11 |
20140252962 | SENSOR NETWORK-ENABLED LIGHT SOCKET ADAPTOR - A light power socket adaptor may be positioned between an energy-saving light bulb and a light socket that may provide electrical power to the light bulb. Light power socket adaptors may be network-enabled, and a sensor network may be ZigBee, which is IEEE compliant and can quickly form a mesh network. Each node on the network may operate independently. Each node may also function as a router so that it may forward data packets to other nodes if the data received is targeted for its own consumption. Adaptors may further include a motion sensor as well as a photo (day/night) sensor. | 2014-09-11 |
20140252963 | LIGHTING DEVICE, LOCAL DEVICE, LIGHTING CONTROL SYSTEM, AND LIGHTING CONTROL METHOD - A lighting control method for use in a lighting control system is disclosed. The lighting control method includes acquiring an influence coefficient of each of lighting devices on at least one local device based on a measured amount of invisible beams and a measured amount of visible light, the influence coefficient representing an influence level of each of the lighting devices on the local device; and acquiring a dimmer level of each of visible light sources based on a corresponding one of the influence coefficients to control the amount of the visible light measured at a position of the local device such that the measured amount of the visible light reaches or approaches a target lighting amount of the local device. | 2014-09-11 |
20140252964 | DISPLAY DEVICE AND COMMON VOLTAGE GENERATOR THEREOF - A voltage generator includes a latch and a first voltage adjustment circuit. The latch includes a latch input terminal, a trigger terminal, a positive latch output terminal and a negative latch output terminal. The latch is configured to have the latch input terminal thereof for receiving an input signal, the trigger terminal thereof for receiving a trigger signal, the positive latch output terminal thereof for outputting a first latch output signal having a phase same as that of the input signal, and the negative latch output terminal thereof for outputting a second latch output signal having a phase opposite to that of the input signal. The first voltage adjustment circuit is electrically coupled to the latch and configured to output a first common voltage signal. A display device using the aforementioned voltage generator is also provided. | 2014-09-11 |
20140252965 | Methods of Operating Switched Mode Power Supply Circuits Using Adaptive Filtering and Related Controller Circuits - A method of operating a switched mode power supply circuit can be provided by determining an error in a control signal for the switched mode power supply circuit. The error can be compared to an error threshold value to provide a filtering selection. The error can be adaptively filtered of based on the filtering selection to provide a selected filtering and the error can be filtered using the selected filtering. | 2014-09-11 |
20140252966 | CURRENT SPLIT CIRCUIT FOR EQUALLY SPLITTING CURRENT BETWEEN PARALLEL CONNECTED LED LUMINAIRE STRINGS - A system and method for equally splitting the current supplied to parallel connected strings of LEDs. The system and method includes a current splitting circuit such as a mirror circuit that divides the current substantially equally between two or more parallel connected strings of LEDs. The current splitting circuit ensures that illumination levels of the strings of LEDs are uniform without requiring the strings of LEDs to be binned. The current splitting circuit also allows the strings of LEDs to be dimmed in both pulse width modulation (PWM) and continuous modes. | 2014-09-11 |
20140252967 | SOLID STATE LIGHTING APPARATUS AND CIRCUITS INCLUDING LED SEGMENTS CONFIGURED FOR TARGETED SPECTRAL POWER DISTRIBUTION AND METHODS OF OPERATING THE SAME - A dimmable solid state lighting apparatus can include a plurality of light emitting diode (LED) segments including a first LED segment that can have a targeted spectral power distribution for light emitted from the apparatus that is different than spectral power distributions for other LED segments included in the plurality of LED segments. An LED segment selection circuit can be configured to selectively control current through the plurality of LED segments to shift the light emitted by the apparatus to the targeted spectral power distribution responsive to dimming input. | 2014-09-11 |
20140252968 | LIGHT EMITTING DIODE DRIVER - A driver circuit for driving light emitting diodes (LEDs). The driver circuit includes: a string of LEDs divided into n groups, the n groups of LEDs being electrically connected to each other in series, a downstream end of group m-1 being electrically connected to the upstream end of group m, where m is a positive number equal to or less than n. The driver circuit also includes a plurality of current regulating circuits, each of the current regulating circuits being coupled to the downstream end of a corresponding group at one end and coupled to the ground at the other end and including a sensor amplifier and a cascode having first and second transistors, each sensor amplifier being coupled to a different voltage source for providing a different reference voltage thereto. | 2014-09-11 |
20140252969 | PFC LED DRIVER HAVING A FLICKER CONTROL MECHANISM - A PFC LED driver having a flicker control mechanism, including: a bridge rectifier, used to generate a full-wave-rectified line input voltage according to an AC power; a single stage PFC constant average current converter, coupled with the bridge rectifier and used for forcing an input current to track the full-wave-rectified line input voltage and regulating an average value of an output current at a first preset value; and a current ripple reducing unit, in series with an LED module to form a load for the output current to flow through, wherein the current ripple reducing unit has a negative feedback control mechanism for forcing a peak of the output current approach an average value of the output current. | 2014-09-11 |
20140252970 | DYNAMIC STEP DIMMING INTERFACE - A dynamic step dimming interface is provided that allows a ballast to energize a lamp in a dim mode or a normal mode. The ballast includes a lamp controller that energizes the lamp using an oscillating current. The oscillating current is also provided to a voltage monitor, which indicates the voltage level of the oscillating current, and to a rectifier, which provides an output indicative of the oscillating current. The rectifier is responsive to user input indicating whether the dim mode or the normal mode is to be used. A processing circuit receives the voltage level from the voltage monitor and provides a mode command to the ballast, indicating the lamp mode, based on inputs received, and provides a reference voltage to a comparator. The comparator receives the rectifier output and the reference voltage, and generates a voltage indicative of a power level of the lamp for the processing circuit. | 2014-09-11 |
20140252971 | Method of Manufacturing a Semiconductor Device - The present invention supplies a manufacturing method of a semiconductor device, which includes a non-contact inspection process capable of confirming if a circuit or circuit element formed on an array substrate is normally performed and can decrease a manufacturing cost by eliminating wastes to keep a defective product forming. | 2014-09-11 |
20140252972 | LED LIGHT SOURCE WITH REDUCED FLICKER - An illumination control system includes a rectifying device, a damping device for inhibiting flickering, and a load circuit, wherein the illumination control system further comprises a recognizing control circuit connected between the rectifying device and the damping device, and wherein the recognizing control circuit includes a recognizing signal output module and a switch module, the recognizing signal output module generates a first control signal indicating that a dimmer is not connected upstream the rectifying device or the dimmer is connected upstream the rectifying device and reaches a predetermined dimming level and a second control signal indicating that the dimmer is connected upstream the rectifying device and does not reach the predetermined dimming level and at least one damping resistor of the damping device is short connected or is connected by means of the switch module according to the first control signal or the second control signal. | 2014-09-11 |
20140252973 | Ripple Cancellation Converter with High Power Factor - Provided are circuits and methods for use with a power supply that provides a main output including a main DC voltage having a first AC voltage ripple, or a main DC current having a first AC current ripple. A ripple cancellation converter provides a second AC voltage ripple connected in series with the main output, such that the first AC voltage ripple is substantially cancelled; or a second AC current ripple connected in parallel with the main output, such that the first AC current ripple is substantially cancelled. As a result, substantially ripple-free DC output power is provided. | 2014-09-11 |
20140252974 | LIGHTING APPARATUS - The present invention relates to a lighting apparatus which stably performs dimming control on a lamp implemented with light emitting diodes (LEDs) or the like. The lighting apparatus may improve power efficiency by driving power supplied to a lamp in a current regulation method, perform constant current control such that the lamp maintains constant brightness, perform dimming control for controlling the brightness of the lamp, commonly supply the power provided to the lamp to peripheral circuit modules, and perform constant voltage control such that a driving voltage supplied as power is maintained at a predetermined level or more. | 2014-09-11 |
20140252975 | Reduction of Supply Current Variations Using Compensation Current Control - A power distribution system and method includes a controller that is configured to control a switching power converter. In at least one embodiment, the controller includes a compensation current control circuit to control a compensation current that reduces and, in at least one embodiment, approximately eliminates variations in current drawn by the controller during a particular operational time period. In at least one embodiment, the power distribution system is a lamp that includes the controller, a switching power converter, and one or more light sources, such as light emitting diodes. | 2014-09-11 |
20140252976 | IGNITION DEVICE WITH IGNITION COIL - An ignition device includes an ignition coil with a primary coil and a secondary coil, a spark plug with center and ground electrodes for discharge therebeteween, and a voltage limiting circuit. The voltage limiting circuit limits voltage applied between the electrodes of the spark plug such that the voltage has an absolute value limited within a predetermined voltage limiting value. The voltage limiting value is differentiated from each other in first and second stages. The first stage is defined as a period in which an initial discharge peak ends, the initial discharge peak being initially generated by electric energy. The second stage is defined as a period after the end of the initial discharge peak. The voltage limiting value in the first stage is lower than the voltage limiting value in the second stage. | 2014-09-11 |
20140252977 | DIMMABLE LED READING LIGHT UNIT, ARRANGEMENT OF POWER SUPPLY AND DIMMABLE LED READING LIGHT UNIT AND METHOD OF REPLACING A DIMMABLE LIGHT UNIT BY A DIMMABLE LED READING LIGHT UNIT - A dimmable LED reading light unit includes comprises a dimming module and an LED module, connected in series. The dimming module has an input being connectable to a power supply supplying direct voltage and includes a potentiometer allowing section of a dimming rate and a current controller providing an operating current for the LED module. The LED module includes at least one LED and a current consumer connected in parallel and the current controller is configured to supply direct current to the LED module that substantially corresponds to the sum of the driving current necessary for driving the at least one LED to emit light with an intensity of illumination corresponding to the dimming rate of the potentiometer, and the current consumption of the current consumer. | 2014-09-11 |
20140252978 | ELECTRONIC BALLAST CIRCUIT FOR LAMPS - An electronic ballast circuit includes a power factor correction circuit, a control and amplifier circuit, a ballast controller circuit and a ballast driver circuit. The ballast driver circuit includes a resonant circuit that connects to a lamp and a strike voltage limiter circuit that regulates the behavior of the resonant circuit. An overcurrent sensor circuit may be included to indirectly the control the ballast controller circuit via the control and amplifier circuit. The strike voltage limiter circuit uses varistors to change the resonant frequency of the resonant circuit to limit the voltage to the lamp. | 2014-09-11 |
20140252979 | PULSE-EXCITED MERCURY-FREE LAMP SYSTEM - A pulse-excited mercury-free lamp system, and method of sustaining the emission of light emission from such a lamp, is provided. The system includes a light-transmissive envelope having an inner surface and a phosphor layer coated thereon. A discharge-sustaining gaseous mixture of a noble gas, at a low pressure, and a metal halide, is retained inside the light-transmissive envelope. An electrical system provides a plurality of pulses to the discharge-sustaining gaseous mixture, resulting in a discharge, which causes the lamp system to emit light. The emission of light is maintained by turning the discharge on during a pulse width of each pulse in the plurality of pulses and by turning the discharge off during a remainder of each period in the plurality of pulses. Particularly in systems where the metal halide is indium-based, this maintains an efficient emission of light without the use of mercury. | 2014-09-11 |
20140252980 | LOAD CONTROL DEVICE WITH AN ADJUSTABLE CONTROL CURVE - A load control device, such as a dimmer switch, for example, may provide for user adjustment of the shape of a control curve, such as a dimming curve, for example. The load control device may generate a control curve that has a non-linear relationship between a minimum power level, such as a minimum phase angle of a phase-control signal, for example, and a maximum power level, such as a maximum phase angle of the phase-control signal, for example. The load control device switch may have a default control curve, which may have a linear relationship between the minimum power level and the maximum power level. The load control device may provide for the generation of a control curve that includes two or more different slopes from the minimum power level to the maximum power level. | 2014-09-11 |
20140252981 | Utilizing Secondary-Side Conduction Time Parameters of a Switching Power Converter to Provide Energy to a Load - A power distribution system includes controller of a switching power converter to control the switching power converter and determine one or more switching power converter control parameters. In at least one embodiment, the switching power converter utilizes a transformer to transfer energy from a primary-side of the transformer to a secondary-side of the transformer. In at least one embodiment, the switching power converter control parameters includes a secondary-side conduction time delay that represents a time delay between when the primary-side ceases conducting a primary-side current and the secondary-side begins to conduct a secondary-side current. In at least one embodiment, determining and accounting for this secondary-side conduction time delay increases the prediction accuracy of the secondary-side current value and accurate delivery of energy to a load when the controller does not directly sense the secondary-side current provided to the load. | 2014-09-11 |
20140252982 | LED-Airfield Light - A method for driving a LED-airfield light by a controller | 2014-09-11 |
20140252983 | Method for Controlling Lamps and Computer Program Product Thereof - A method for controlling a plurality of lamps is disclosed. The method is applied to an electrical apparatus, such that the user can control the plurality of lamps by the electrical apparatus. The method includes the following steps: receiving a plurality of different identification codes, wherein the identification codes represent each of the lamps respectively; setting at least two identification codes of the plurality of identification codes to be in the same control group according to a group setting command; and setting the control parameter of each of the lamps represented by each of the identification codes of the same control group to be the same. | 2014-09-11 |
20140252984 | LED BACKLIGHT DRIVING CIRCUIT, LCD DEVICE, AND DRIVING CIRCUIT - The present disclosure provides a light emitting diode (LED) backlight driving circuit, a liquid crystal display (LCD) device, and a driving circuit. The LED backlight driving circuit includes a timing control module, an LED lightbar, and a driver module coupled with an output end of the LED lightbar. The driver module includes at least one constant current driver chip driving the LED lightbar to display. The timing control module successively outputs a driving signal to the constant current driver chip. The driving signal includes data units which are arranged in sequence, and each data unit storing a current duty and a phase delay of one LED lightbar. The constant current driver chip directly reads data of a corresponding data unit and drives the LED lightbar to display. | 2014-09-11 |
20140252985 | ELECTRONIC DEVICE AND LIGHT-EMITTING MODULE - A light-emitting module includes at least one first light-emitting component, at least one second light-emitting component, a first driving component, a second driving component, and a control component. The first light-emitting component is configured to emit a white light having a first predetermined color temperature according to a first power of a first driving signal. The second light-emitting component is configured to emit another white light having a second predetermined color temperature according to a second power of a second driving signal. The control component is configured to separately output the first and second driving signals, and to separately adjust the first and second powers of the first and second driving signals, so as to mix the white lights having the first and second predetermined color temperatures to output a white light having an output color temperature. | 2014-09-11 |
20140252986 | SMART MULTI-DIMENSIONAL LIGHT CELL ARRANGEMENT - The present invention relates to a novel arrangement of light cells on a flexible or solid background into a smart multi-dimensional light source capable of unlimited configuration, which comprises of a mother cell that is connected to one source of electrical power and gets charged, subsequently charging all the other light cells and thus illuminating the entire light source with unlimited configuration, and which is capable of being wirelessly switched on or off by means of a smart phone device. | 2014-09-11 |
20140252987 | METHOD OF PRIORITIZING AND SYNCHRONIZING EFFECT FUNCTIONS IN AN ILLUMINATION DEVICE - The present invention relates to an illumination device comprising a number of light sources arranged in a first group and in a second and controlling means adapted to control the first group and said second group individually. The controlling means is further adapted to control of light sources based on an input signal indicative of at least a first effect function and a second effect function. The first effect function generates a first output related to the light sources and said second effect function generates a second output light sources. The first and second effect functions are stored in a memory in the in the illumination device. The that controlling means is adapted to control the first and the second group of light sources based on a priority schema and/or synchronizing schema both stored in a memory in the illumination device. The priority schema comprising a number of priority rules defining how the first effect function and the second effect must be executed in relation to each other, and the synchronizing schema comprises a number of synchronizing functions defining how the controlling means must execute the first effect function and the second effect function in relation to time and in relation to each other. The present invention relates also to a method of controlling such illumination device. | 2014-09-11 |
20140252988 | PIXEL CIRCUITS FOR AMOLED DISPLAYS - The OLED voltage of a selected pixel is extracted from the pixel produced when the pixel is programmed so that the pixel current is a function of the OLED voltage. One method for extracting the OLED voltage is to first program the pixel in a way that the current is not a function of OLED voltage, and then in a way that the current is a function of OLED voltage. During the latter stage, the programming voltage is changed so that the pixel current is the same as the pixel current when the pixel was programmed in a way that the current was not a function of OLED voltage. The difference in the two programming voltages is then used to extract the OLED voltage. | 2014-09-11 |
20140252989 | Active Avalanche Protection for Fly Back Converter - The present document relates to power converters. In particular, the present document relates to the protection of the power switches of power converters. A controller configured to control a switched-mode power converter is described. The controller comprises a control pin for controlling a state of a power switch of the switched-mode power converter using a control signal; and a sensing pin for receiving a sensed current signal indicative of a current through the power switch. The controller is configured to detect a break-through situation of the power switch based on the state of the power switch and based on the sensed current signal. | 2014-09-11 |
20140252990 | Quantization Error Reduction in Constant Output Current Control Drivers - An electronic system and method includes a controller to control a switching power converter in at least two different modes of operation, a normal mode and an error reduction mode. The controller controls an amount of charge pushed (i.e. delivered) by the switching power converter to a load to reduce a charge quantization error. The charge quantization error represents an amount of charge pushed to the load beyond a target charge amount. The controller determines an amount of charge to be pushed to the toad. Based on the amount of charge to be pushed to the load, the controller generates a current control signal that controls a current control switch in the switching power converter. Determination of the control signal depends on whether the controller is operating in normal mode or error reduction mode. The controller attempts to reduce the charge quantization error to avoid power fluctuations. | 2014-09-11 |
20140252991 | ELECTRONIC BALLASTS - Methods and apparatus are described that can provide improved power factor correction and total harmonic distortion, efficiency and/or direct feedback of load current variations to a power source inverter. In one example, a power supply, for example, a ballast, can have an input circuit, an output circuit and an inverter circuit coupled between the input circuit and the output circuit. A current feedback circuit is coupled between the output circuit and the inverter circuit and configured to feed current back to the inverter circuit through a transformer stage separate from the inverter as a function of a current level in the output circuit. | 2014-09-11 |
20140252992 | System and Method for Controlling Dimming of Solid State Lighting Device - Determining an amount of light output from a solid state lighting (SSL) unit based on a dimmer setting includes determining the dimmer setting of the dimmer during a readout mode by analyzing a power signal received from the dimmer, the dimmer setting indicating a desired level of light, determining power needed at input terminals of the SSL unit for an SSL load to output the desired level of output light, and determining a value of an adjusting signal for adjusting the power at the input terminals of the SSL unit during a power reception mode, based at least in part on the determined dimmer setting, causing the SSL unit to output the desired level of light. | 2014-09-11 |
20140252993 | LIGHTING CONTROL DEVICE - A lighting control device controls a turn-on state and a turn-off state of a lighting apparatus in a room where an air-conditioning apparatus is provided. In the lighting control device, a temperature sensing section is provided in the air-conditioning apparatus and senses temperature of the room to allow the air-conditioning apparatus to perform air-conditioning control such that the sensed temperature of the room lies within a preset temperature range. A temperature acquisition section acquires the sensed temperature. A determination section determines that a switching condition for switching the lighting apparatus has been met, when the acquired sensed temperature coincides, within a preset tolerance range, with a criterion temperature which is set separately from the preset temperature range on the basis of a body temperature of a person. A switching section switches the lighting apparatus between the turn-on state and the turn-off state, when determined that the switching condition has been met. | 2014-09-11 |
20140252994 | NON-SCALING FIXED FIELD ALTERNATING GRADIENT PERMANENT MAGNET CANCER THERAPY ACCELERATOR - A non-scaling fixed field alternating gradient accelerator includes a racetrack shape including a first straight section connected to a first arc section, the first arc section connected to a second straight section, the second straight section connected to a second arc section, and the second arc section connected to the first straight section; an matching cells configured to match particle orbits between the first straight section, the first arc section, the second straight section, and the second arc section. The accelerator includes the matching cells and an associated matching procedure enabling the particle orbits at varying energies between an arc section and a straight section in the racetrack shape. | 2014-09-11 |
20140252995 | MOTOR CONTROLLER - The present invention provides a motor controller for controlling a DC motor according to a reference signal. The motor controller includes a compensator, a pulse width modulation unit, and a motor driving unit. The compensator generates a control signal according to the reference signal and a sensing signal from the DC motor. The pulse width modulation unit generates a motor control signal by comparing the control signal and a ramp signal having a varying frequency. The motor driving unit receives the motor control signal and drives the DC motor according to the motor control signal. | 2014-09-11 |
20140252996 | HYBRID ELECTRIC DEVICE - A device includes a housing configured with a working element and a motor configured for urging motion of the working element. The device further includes a power control module. The power control module is configurable for being in electrical connection with at least one of the motor, a first power source configuration and a second power source configuration. The first power source configuration is configurable for being electrically connected to a battery assembly having a DC power output. The second power source configuration is configurable for being electrically connected to a power inverter, the power inverter configured for receiving an AC power and further configured for outputting a DC power to the second power source configuration. The power control module includes an automatic power selection configuration for automatically selecting the second power source configuration when the second power source configuration receives DC power from the power inverter. | 2014-09-11 |
20140252997 | SECURE METHOD OF CUTTING OFF THE POWER SUPPLY OF AN ELECTRIC MOTOR AND CORRESPONDING DEVICE - A device is provided for controlling and supplying power to a multi-phase electric motor powered by a main battery. The device includes an electronic power module, a drive module, and a monitoring unit. The electronic power module supplies power from the main battery to phases of the motor. The drive module supplies electric drive signals to transistors of the electronic power module. The monitoring unit supplies drive instructions, which define chopping ratios of the transistors of the electronic power module, to the drive module. The drive module is electrically powered by a connector that includes a relay capable of instantaneously interrupting supply of power to the drive module, in order to stop the motor, without interrupting supply of power to the monitoring unit. | 2014-09-11 |
20140252998 | DRIVE SYSTEM WITH A DIRECT CURRENT MOTOR BRAKE - One embodiment of a drive system may include a motor shaft coupled to a gear set in connection between an input shaft and an output shaft. The system may also have a direct current motor selectively holding the motor shaft in a fixed position for engaging the input and output shafts to one another in response to a sudden power loss from a main power supply. The system may further include an auxiliary power supply enabling the direct current motor to provide a resistive torque. | 2014-09-11 |
20140252999 | CONTINUOUSLY VARIABLE DYNAMIC BRAKE FOR A LOCOMOTIVE - This disclosure is directed to a traction motor drive system. The traction motor drive system may include a field winding subsystem comprising a field winding associated with a traction motor. The traction motor drive system may also include an armature subsystem arranged in parallel with the field winding subsystem. The armature subsystem may include an armature having first and second armature terminals and a grid resistor selectively electrically coupled in series with the armature. The armature subsystem may also include an armature chopper arranged in parallel with the grid resistor and electrically coupled in series with the armature. The armature chopper may be configured, when the grid resistor is electrically coupled to the armature, to conditionally conduct current to the armature. | 2014-09-11 |
20140253000 | METHOD OF CURRENT REFERENCE GENERATION FOR A MOTOR - A motor control system for determining a reference d-axis current is provided, and includes a motor, a DC power source and DC input lines, and a current command controller. The DC power source generates a bridge voltage across the DC input lines. The current command controller is in communication with the motor and the DC input lines. The current command controller is configured to monitor the bridge voltage and a torque reference command. The current command controller is configured to determine a peak current based on the torque reference command. The current command controller is configured to determine a current angle based on the peak current. The current command controller is configured to determine the reference d-axis current based on the current angle. | 2014-09-11 |
20140253001 | MOTOR ROTATIONAL POSITION DETECTING DEVICE, WASHING MACHINE AND MOTOR ROTATIONAL POSITION DETECTING METHOD - A motor rotational position detecting device includes a control current command output unit configured to generate and supply a torque current command and an excitation current command according to a control command for a permanent magnet motor having magnetic saliency, when receiving a control command. The control current command output unit includes a command value storage unit configured to store a value of the excitation current command supplied so that a rotational position error amount obtained by a rotational position detection unit is rendered zero when the control current command output unit supplies any torque current command value while the motor maintains any rotational position. When generating the torque current command in response to the control command, the control current command output unit is configured to read from the command value storage unit an excitation current command corresponding to the torque current command and to set the read command. | 2014-09-11 |
20140253002 | SYSTEM FOR REDUCING TORQUE RIPPLE IN AN ELECTRIC MOTOR - A motor control system is provided. The motor control system includes a motor, a position sensor, a current sensor, and a control module. The motor has a rotor and a stator. The motor generates an output torque based on a phase current applied to the motor. The output torque generated by the motor creates a torque ripple that is within a predefined range. The position sensor monitors the motor to determine a rotor position. The current sensor monitors the motor to determine the phase current. The control module is in communication with the motor, the position sensor, and the current sensor. The control module includes a lookup table that stores values of phase current commands. The control module determines a phase current command from the lookup table based on the rotor position and the phase current. | 2014-09-11 |
20140253003 | MOTOR CONTROL UNIT - A motor control unit includes: a microcomputer that outputs a motor control signal; a driving circuit that supplies driving electric power to the motor based on the motor control signal; and a capacitor provided at an intermediate portion of a power supply line that connects the driving circuit and a driving power supply to each other. The microcomputer carries out electric discharge from the capacitor by supplying electric power generated by electric charges stored in the capacitor to the motor such that torque is generated by the motor and an angular velocity of the motor becomes less than or equal to a prescribed angular velocity, with torque transmission between the motor and the wheel interrupted by the clutch after a driving relay is turned off. | 2014-09-11 |
20140253004 | METHOD AND SYSTEM TO COMPENSATE FOR DYNAMIC DC OFFSET OF MEASURED PHASE CURRENT - A motor control system for determining an offset correction value is provided. The motor control system includes a motor, an inverter, an inverter controller, and a dynamic offset compensation control module. The inverter is configured to transmit the phase current to the motor. The inverter controller determines the phase current to the motor. The dynamic offset compensation control module is in communication with the inverter controller and the motor, and is configured to perform a method at a fixed periodic interval to determine the offset correction value. | 2014-09-11 |
20140253005 | THERMAL STRESS REDUCTION IN AIRCRAFT MOTOR CONTROLLERS - A thermal stress reduction method includes ramping an electric power generator to start an aircraft engine, for a time period associated with the aircraft engine start sequence toggling a three-level inverter switch array to a three-level pulse width modulation mode, determining if a first time interval in the three-level pulse width modulation mode exceeded a predetermined three-level pulse width modulation mode interval, in response to the first time interval exceeding the three-level pulse width modulation mode interval, toggling the three-level inverter switch array to a two-level pulse width modulation mode, determining if a second time interval in the two-level pulse width modulation mode exceeded a predetermined two-level pulse width modulation mode interval and in response to the second time interval exceeding the two-level pulse width modulation mode interval, toggling the three-level inverter switch array to the three-level pulse width modulation mode. | 2014-09-11 |
20140253006 | POWER CONVERTER - A power converter is for a rotating electrical machine including first and second winding sets, each of which has coils corresponding to phases of the rotating electrical machine. In the power converter, a first inverter energizes the first winding set, a second inverter energizes the second winding set, a current sensor detects a phase current flowing through each coil, and a control section drives the first and second inverters respectively based on first and second voltage command signals. The first inverter and the first winding set form a first system. The second inverter and the second winding set form a second system. The control section calculates the first and second voltage command signals so that average voltages applied to the first and second winding sets can be different from each other. The failure detector detects whether a short-circuit occurs between the first and second systems based on each phase current. | 2014-09-11 |
20140253007 | METHOD AND DEVICE FOR IDENTIFYING AN ELECTRIC MACHINE - A method for generating a challenge-response pair in an electric machine as a basis for an identification or authentication is described, the electric machine having a stator and a rotor, a first alternating voltage between two points of a first defined point pair of the electric machine being applied as a challenge, which causes an induction in the electric machine, a variable dependent on the caused induction being determined as a response. The first alternating voltage has a frequency which is higher than the working frequency of the electric machine. | 2014-09-11 |
20140253008 | Fail Safe Circuit - Apparatus for preventing output of an input signal is disclosed. The apparatus comprises a signal control unit comprising a signal buffering unit having an input and an output, the signal buffering unit arranged to receive an input signal and pass the input signal to the output when the signal buffering unit is powered, wherein a negative power supply terminal of the signal buffering unit is arranged to be supplied by a first power source having a voltage. The signal control unit also comprises a boost circuit arranged to boost the voltage of the first power source to a boosted voltage higher than the voltage of the first power source and supply either the voltage of the first power source or the boosted voltage to a positive power supply terminal of the signal buffering unit. The signal buffering unit is powered when the boosted voltage is supplied to the positive power supply terminal of the signal buffering unit and the signal buffering unit is not powered when voltage of the first power supply terminal is supplied to the positive power supply terminal of the signal buffering unit. Also disclosed is an apparatus for providing output voltages for driving a motor as well as a motor drive system. | 2014-09-11 |
20140253009 | CONTROL APPARATUS FOR AC ROTATING MACHINE AND ELECTRICALLY-ASSISTED POWER STEERING APPARATUS PROVIDED WITH THE CONTROL APPARATUS - A control apparatus for AC rotating machine includes: a voltage command calculation means for calculating voltage commands on two rotational axes; a first voltage application means for applying voltages to first windings of a multiple-winding AC rotating machine having at least the first windings and second windings based on the voltage commands on two rotational axes output by the voltage command calculation means; and a second voltage application means for applying voltages to the second windings based on the voltage commands on two rotational axes output by the voltage command calculation means, wherein the second voltage application means applies voltages to the second windings based on the deviations between the currents fed to the first windings and the currents fed to the second windings. | 2014-09-11 |
20140253010 | CONTROL DEVICE FOR SERVOMOTOR - A control device of a servomotor includes a current control loop selecting unit configured to select a first current control loop or a second current control loop having a response speed slower than that of the first current control loop, as a current control loop for controlling a current flowing through the servomotor; a filter configured to attenuate an input or an output of the first current control loop or the second current control loop selected by the current control loop selecting unit in accordance with a set attenuation ratio in a specific frequency range; and a filter attenuation ratio setting unit configured to set, as the attenuation ratio of the filter, a first attenuation ratio when the first current control loop is selected by the current control loop selecting unit, and a second attenuation ratio smaller than the first attenuation ratio when the second current control loop is selected. | 2014-09-11 |
20140253011 | MOTOR CONTROL SYSTEM - A motor control system powered by an input power source. The system includes a reactive power reducing input power system in electrical communication with a motor and a constant frequency input power source. The reactive power reducing input power system includes an AC-DC converter and a regulator system, wherein the regulator system is in electrical communication with a DC-AC inverter that is in electrical communication with the motor. The system may include an isolation system to electrically isolate the DC-AC inverter from the motor when the DC-AC inverter is not transmitting power to the motor. The system may accept multiple alternating current voltage sources including both single phase and three phase sources. | 2014-09-11 |
20140253012 | WINDOW MODULE FOR AN AIRCRAFT OR SPACECRAFT - The present disclosure pertains to a window module for an aircraft or spacecraft, including a window frame which comprises, at least in portions, a current-generating element for generating an electric current. | 2014-09-11 |
20140253013 | ELECTRICITY DISTRIBUTION SYSTEM AND ELECTRICITY DISTRIBUTION METHOD - An electricity distribution system includes an electricity supply control unit that receives information on power consumption, estimates the current and the future power consumption, and controls the supply of electricity to the electric device; an information display unit that displays information on a power use situation of an electric device electrically connected with the electricity supply control unit; and a battery server that accumulates power, in which the electricity supply control unit communicates the information on the power consumption with a new electric device when the new electric device is electrically connected, and when the amount of available power is exceeded by supplying electricity to the electric device, does not supply electricity to the electric device, makes the information display unit display that the amount of available power is exceeded by supplying electricity to the information display unit, and determines whether to use the power accumulated in the battery server. | 2014-09-11 |
20140253014 | CHARGING CONTROL DEVICE, SOLAR POWER GENERATION SYSTEM AND CHARGING CONTROL METHOD - The present disclosure relates to a charging control device, a solar power generation system and a charging control method which allow more efficient charging. The charging control device includes: a charging converter which takes electric power out of a solar panel and converts the electric power to a voltage required for charging a storage battery; and a controlling CPU which adjusts an output voltage that is outputted from the charging converter. The charging converter takes electric power out of the solar panel at two operation points where the electric power can be taken out of the solar panel with a certain output voltage, and charges the storage battery. The controlling CPU adjusts the output voltage in accordance with a voltage difference between input voltages respectively corresponding to the two operation points. The present technique is applicable, for example, to the charging control device of the solar power generation system. | 2014-09-11 |
20140253015 | MOBILE ELECTRONIC SYSTEM AND CHARGING ACCESSORY - A mobile electronic system including a mobile electronic device and a charging accessory is provided. The mobile electronic device includes a first connector and a battery. The charging accessory includes a second connector. The first connector and the second connector are configured to couple the mobile electronic device and the charging accessory. When the charging accessory is coupled to an alternating-current voltage and the mobile electronic device, the charging accessory converts the alternating-current voltage into a direct-current voltage, detects an instantaneous voltage of the battery, determines the value of the direct-current voltage according to the instantaneous voltage, and outputs the direct-current voltage to charge the battery. | 2014-09-11 |
20140253016 | MOBILE POWER SUPPLY DEVICE AND POWER SUPPLY SYSTEM THEREOF - A mobile power supply device and a power supply system thereof are disclosed. The mobile power supply device is used for charging a load device. A rectifier circuit of the mobile power supply device is used for receiving an alternating current power to convert to a direct current power. A battery set includes a plurality of battery units series connected to each other. A charging control unit is used for receiving the direct current power to charge the battery set. An output control unit is used for controlling the battery set to output the direct current power to the load device via a direct-current output port. A direct-current input port is used for inputting the direct current power to the battery set, wherein the direct-current input port includes a determining pin for determining whether the charging control unit connects to another mobile power supply device. | 2014-09-11 |
20140253017 | BATTERY CHARGING APPARATUS - A battery charger ( | 2014-09-11 |
20140253018 | POWER SUPPLY SYSTEM AND METHOD FOR CHARGING BATTERY OF VEHICLE - A power supply system and method for charging a battery of a vehicle are provided and include a charger that is configured to charge the battery and a charging controller that is configured to receive a voltage to charge the battery and operate the charger. An auxiliary battery is configured to supply a first DC voltage to operate the charging controller and a power supplier is configured to generate a second DC voltage greater than the first DC voltage using external AC power, and to supply the second DC voltage to the charging controller as a driving power source to charge the battery. First and second diodes are respectively installed at output ends of the power supplier and the auxiliary battery, a cathode voltage of the second diode is increased when the power supplier supplies the second DC voltage, and the first DC voltage of the auxiliary battery is blocked. | 2014-09-11 |
20140253019 | Charger Circuit and Control Circuit and Control Method Thereof - The present invention discloses a charger circuit and a control circuit and a control method thereof. The charger circuit supplies a charging current to charge a battery. The charger circuit includes a bipolar junction transistor (BJT) pass circuit, a current sensing circuit, a voltage sensing circuit and a control circuit. The BJT pass circuit is coupled to an input voltage and generates the charging current in response to a control signal. The control circuit includes a current adjustment circuit, which adjusts a first resistance of a first variable resistor device included therein according to the current sensing signal and a current reference signal so as to adjust the control signal; and a voltage adjustment circuit, which adjusts a second resistance of a second variable resistor device included therein according to the voltage sensing signal and a voltage reference signal so as to adjust the control signal. | 2014-09-11 |
20140253020 | DEVICE AND METHOD FOR PROTECTING RECHARGEBLE POWER SUPPLY OF ELECTRONIC CIGARETTE - This invention relates to a device for protecting rechargeable power supply of electronic cigarette. Wherein such device comprises a rechargeable power supply module, a microcontroller, a semiconductor switch and an interface module configured to connect a charging unit. The interface module comprises a first charging terminal and a second charging terminal. The microcontroller comprises an input end and an output end. The power supply module is connected to the microcontroller and supplies electric power to it. The input end and the output end of the microcontroller is connected to the interface module and the semiconductor switch respectively, and the microcontroller detects a voltage signal of the first charging terminal, judges whether an electric level of the voltage signal is positive or negative and sends a control signal to the semiconductor switch for controlling the semiconductor switch to be ON or OFF. | 2014-09-11 |
20140253021 | APPARATUS, METHOD AND ARTICLE FOR AUTHENTICATION, SECURITY AND CONTROL OF PORTABLE CHARGING DEVICES AND POWER STORAGE DEVICES, SUCH AS BATTERIES - A network of collection, charging and distribution machines collect, charge and distribute portable electrical energy storage devices (e.g., batteries, supercapacitors or ultracapacitors). To charge, the machines employ electrical current from an external source, such as the electrical grid or an electrical service of an installation location. Users may also use portable charging devices that authenticate portable electrical energy storage devices or are authenticated by portable electrical energy storage devices before the charging is allowed or enabled. This authentication may be via wired or wireless communication channels between the portable charging device and portable electrical energy storage device, such as via near field communication (NFC) channels. | 2014-09-11 |
20140253022 | CHARGE CIRCUIT - A charge circuit includes a comparator, first through third electronic switches, first through tenth resistors. A voltage for charging a battery is output to an output of the charge circuit. The output of the charge circuit is grounded through the first and second resistors in that order. A node between the first and second resistors is electrically connected to a non-inverting input terminal of the comparator. An inverting input terminal of the comparator is electrically connected to an anode of the battery. An output terminal of the comparator is electrically connected to the first and third electronic switches. The first electronic switch is electrically connected to the second electronic switch. The second and third electronic switches are selectively turned on according to a voltage of the anode of the battery to change a charging current to the battery. | 2014-09-11 |
20140253023 | FAST CHARGING OF BATTERY USING ADJUSTABLE VOLTAGE CONTROL - A battery cell charger for rapidly charging a lithium ion battery cell (or string of series-parallel connected cells) having a maximum battery cell voltage the battery cell charging system including: a circuit for charging the battery cell using an adjustable voltage charging-profile to apply a charging voltage and a charging current to the battery cell wherein the adjustable voltage charging-profile includes: a first charging stage with a constant first stage charging current and an increasing battery cell voltage with the first stage charging current provided until the first stage charging voltage is about equal to a first stage complete voltage less than the maximum battery cell voltage; one or more intermediate charging stages, each intermediate stage selected from the group consisting of one or more of an intermediate constant voltage stage that provides a decreasing charging current, an intermediate constant current stage that produces an increasing battery cell voltage, and combinations thereof; and a final charging stage with a constant final stage charging voltage about equal to an intermediate stage complete voltage and a decreasing final stage charging current with the final stage charging voltage provided until the final stage charging current reaches a desired charge complete level. | 2014-09-11 |
20140253024 | METHOD AND APPARATUS FOR WIRELESSLY CHARGING MOBILE DEVICES - An apparatus comprising a connector, at least one cover member, and at least one wireless charging antenna is provided. The connector is configured to interface with at least a charging connector of a mobile device, and the at least one cover member is configured to extend away from the mobile device in an opened configuration. The at least one wireless charging antenna is physically coupled to the cover member and electrically coupled to the connector. The charging antenna is configured to receive a wireless transmission of electricity and to deliver the electricity via the connector to charge or power the mobile device. | 2014-09-11 |
20140253025 | WIRELESS CHARGER AND CHARGING SYSTEM WITH MULTI-COMPATIBILITY - A wireless charger and charging system compatible with several wireless charging solutions is provided. The wireless charger includes a charging module having a transmitting member that transfers wireless power to a receiving member of a chargeable device so that a battery of the chargeable device can be charged. If the chargeable device is compliant with a recognized wireless charging solution, a charging session can be initiated and the charging module can charge the chargeable device using a charging protocol that is compatible with the wireless charging solution. | 2014-09-11 |
20140253026 | Apparatus, Method, and System for Wirelessly Charging an Electronic Device - An apparatus for wirelessly charging an electronic device is disclosed. The apparatus comprises a charging controller coupled to a power source, a power switch coupled to the power source, a logic controller coupled to the power switch, and a wireless charger transmitter coupled to the power source via the power switch and coupled to the logic controller. The charging controller is configured to transmit power from the power source to a load in the apparatus. The logic controller is configured to detect if the electronic device is wirelessly coupled to the apparatus and to switch on the power switch when the electronic device is detected to be wirelessly coupled. The wireless charger transmitter is integrated in the apparatus and configured to wirelessly transmit power from the power source to the electronic device when the power switch is on. | 2014-09-11 |
20140253027 | POWER RECEIVER AND CHARGING SYSTEM - According to an embodiment, there is provided a power receiver including: a first rectifying circuit, a second rectifying circuit, a connecting part and a controller. The first rectifying circuit rectifies a first AC power generated by a first AC power generating device. The second rectifying circuit rectifies a second AC power generated by a second AC power generating device. The connecting part electrically connects an output terminal of the first rectifying circuit and an output terminal of the second rectifying circuit, in parallel. The controller performs a control such that the first AC power generating device and the second AC power generating device do not operate simultaneously. | 2014-09-11 |
20140253028 | WIRELESS POWER TRANSMITTER AND METHOD FOR CONTROLLING SAME - A method for controlling a wireless power transmitter that transmits charging power to a wireless power receiver is provided. The method includes driving the wireless power transmitter; determining whether latch fault mode entry conditions are met, in which the wireless power transmitter is allowed to enter a latch fault mode in which the wireless power transmitter periodically applies first power having a first power value in a first cycle; and if the latch fault mode entry conditions are met, periodically applying the first power in the first cycle. | 2014-09-11 |
20140253029 | NON-CONTACT CHARGING APPARATUS AND NON-CONTACT CHARGING METHOD - A non-contact charging apparatus configured to, vary the inductance and the capacitance of the matching unit for matching the impedance of the power supply system that supplies alternate current power and the impedance of the power transmitting/receiving system including a power transmitting unit and a power receiving apparatus according to the variable information. | 2014-09-11 |
20140253030 | AUTOMATICALLY POSITION ADJUSTABLE WIRELESS CHARGER AND CHARGING METHOD USING THE SAME - Provided are an automatically position adjustable wireless charger and a charging method using the same, the wireless charger, including: a plurality of power transmission coil units having a power transmission coil for generating an induced current in a power reception coil of a portable terminal using electromagnetic induction; a power transmission circuit unit for supplying a current to the power transmission coil; a drive unit for moving a position of the power transmission coil unit; a power transmission unit for enabling the plurality of power coil units to be eccentrically rotated by transmitting power from the drive unit to the plurality of power coil units; and a control unit for stopping the drive unit and enabling the current to be supplied to the power transmission coil when a voltage applied to the power transmission coil is reduced by the power transmission coil being aligned at the power reception coil. | 2014-09-11 |
20140253031 | WIRELESS BATTERY CHARGING SYSTEM - An inductive battery charger is incorporated with a power source that in one embodiment is a genset. A charging surface can be provided that in some forms is hinged, separable, or includes a pocket. In some forms resonant inductive coupling can be used to charge a battery through inductive charging. A battery can be charged within an area such as a perimeter of a military post (e.g. an observation post) using techniques described herein. A battery can also be charged remotely by inductive techniques such as through the use of a passing vehicle, etc. | 2014-09-11 |
20140253032 | CAPACITIVE SENSING ENABLED SWITCH MODE POWER SUPPLY AND DATA TRANSFER - A microchip for control of a switch mode power supply (SMPS), with said microchip also having the ability to measure capacitance of an electrode or sense plate structure or structures, and use of a low power, power supply structure to supply said microchip, said power supply structure distinct from the main energy path via said SMPS to a load. The microchip may control said SMPS to transition between an active state and an inactive state, with the measured capacitance used to determine a condition for state transition. In said SMPS inactive state, only the microchip draws power to operate its capacitive sensing circuitry, leading to a significant SMPS standby losses decrease compared to prior art. Further teachings by the present invention include capacitive sensing based data transfer, universal charging platforms for mobile devices, noise immunity enhancements, various lighting embodiments as well as SMPS operation improvements. | 2014-09-11 |
20140253033 | SYSTEM AND METHOD FOR AUTOMATICALLY CHARGING A BATTERY DURING MOTION - A system and method for controlling the operation of an electrically operated vehicle. The system comprises a digital commutation system for charging electric vehicle batteries. That system includes an electromagnet, an electromagnet status sensor, and a controller. The electromagnet is coupled to a crankshaft and configured both to receive a current from the batteries and to supply charge to them The electromagnet status sensor is configured to detect a status of the electromagnet and the controller is configured to control coupling of the electromagnet to batteries based on the detected electromagnet status as well as to monitor the current received by and the charge supplied from the electromagnet. The method includes supplying a current to the electromagnet, producing a electromagnetic field in the electromagnet winding, pulling the electromagnet core into the winding, and then collapsing the electromagnetic field, capturing and storing the charge corresponding to the collapsed field. | 2014-09-11 |
20140253034 | CHARGE SYSTEM FOR ELECTRIC VEHICLES - A charging system for batteries on electric vehicles includes: a first distributer providing electricity supplying passages, through which a normal speed charging device charges a part of batteries in parallel in a normal speed charging process; a second distributer providing a selective electricity supplying passage, through which a rapid charging device charges one battery in a rapid charging process; and a controller. The controller includes: a charging order control device controlling the second distributer to switch the selective electricity supplying passage according to a charging order; a secondarily charging device controlling the normal speed charging device to secondarily charge the one battery in the normal speed charging process after the rapid charging process; and an alternative charging device controlling the normal speed charging device to alternatively charge another battery in the normal speed charging process while waiting for the rapid charging process. | 2014-09-11 |
20140253035 | MOTOR VEHICLE WITH PLUG-IN CHARGING DEVICE - The invention relates to a motor vehicle having a storage device for storing electrical energy for an electric machine of the motor vehicle, a charging device having a charging interface for connecting a charging component for externally charging the storage device and a side bodywork section. The side bodywork section includes a vehicle door for opening and closing a person entry region which leads into a driver and/or passenger accommodating space of the motor vehicle. The charging interface is arranged in the lateral direction of the motor vehicle behind the side bodywork section, so that it can be protected by the side bodywork section against environmental influences and/or unauthorized access. | 2014-09-11 |
20140253036 | CHARGING SYSTEM AND CHARGING SCHEDULING METHOD - A house ECU executes a program when it is the time to set a scheduled time, including the step of transmitting an end time of external charging to a vehicle in the case where the end time has been input by a user, and the step of determining a start time in the case where the house ECU has received a required charging time from a vehicle ECU. The vehicle ECU executes a program when it is the time to set a scheduled time, including the step of calculating the required charging time in the case where the vehicle ECU has received the end time from the house ECU, and the step of transmitting the required charging time. | 2014-09-11 |
20140253037 | CHARGE CONTROL DEVICE, BATTERY MANAGEMENT DEVICE, CHARGE CONTROL METHOD, AND RECORD MEDIUM - A charge-control device that controls charging of vehicles, which use electric power as a drive source, using electric power from an electric power grid includes storage means storing a first period in a charge control period for which the charging is controlled; a second period other than the first period in the charge control period; and a target level of a charge demand in the first period; receipt means receiving from each of the vehicles the required charge amount; and control means controlling the charging using the target level of the charge demand in the first period, setting up a target level of charging in the second period based on a remaining total amount generated by subtracting the charge amount in the first period from a total amount of the plurality of required charge amounts to control the charging using the target level of the charging. | 2014-09-11 |
20140253038 | MOBILE DEVICES AND CASES WITH BUILT-IN POWER SUPPLIES - Battery recharging apparatus for smart phones and other mobile devices eliminates the need to carry a separate charger and/or cord. A cradle receiving the portable electronic device includes a plug with at least two prongs configured to plug into a wall outlet supplying AC line voltage. A power supply in the case converts the AC line voltage into a low DC voltage, and a connector, configured to mate with the power input connector, provides the low DC voltage to the portable electronic device. The plug may include pivoting prongs that fold into the case during periods of non-use. Alternatively, a plug may be provided with a retractable cord enabling a user to extend the cord and plug for charging purposes and retract the cord and plug into the case during periods of non-use. The case may further include an auxiliary rechargeable battery. | 2014-09-11 |
20140253039 | BATTERY CHARGER - A battery charger can include a charger controller configured to determine a total charge time that characterizes a time needed to charge a battery, the total charge time being based on a received state of charge (SOC) of the battery that characterizes a present SOC of the battery. The charger controller can also be configured to determine a charging start time for the battery based on a predetermined full charge time and the total charge time. | 2014-09-11 |
20140253040 | PREVENTIVE BALANCING TECHNIQUE FOR BATTERY PACKS IN PORTABLE ELECTRONIC DEVICES - The disclosed embodiments provide a system that manages use of a battery pack in a portable electronic device. During operation, the system detects a characteristic of a battery bank in the battery pack that is associated with a gradual imbalance in the battery pack. Next, the system manages use of the battery pack based on the characteristic to prevent the gradual imbalance in the battery pack. | 2014-09-11 |
20140253041 | CHARGE AND DISCHARGE CONTROL CIRCUIT, AND CHARGE AND DISCHARGE CONTROL METHOD - In a charge and discharge control circuit, a mode control part manages a normal mode in which voltages at a power terminal and an overcurrent detection terminal are monitored, a time-shortening mode in which predetermined delay times for detecting an overcharge, an overdischarge, and an overcurrent are shortened, and a protection mode in which a signal to stop a charge current or a discharge current is output when an abnormality is detected in the normal mode. A transition is made from the normal mode to the time-shortening mode when the voltage at the power terminal exceeds a predetermined value, and a transition is made from the time-shortening mode to the protection mode when one of the overcharge, overdischarge, and overcurrent is detected. | 2014-09-11 |
20140253042 | BATTERY MODULE AND OVERCHARGE PROTECTING METHOD THEREOF - A battery module and an overcharge protecting method are provided. The overcharge protecting method includes following steps: detecting a battery voltage of a rechargeable battery during a charging process; determining whether the battery voltage is larger than or equals to an upper limit voltage; if no, continuously charging the rechargeable battery until the battery voltage reaches a charging cut-off voltage and then the charging process is ended; if yes, stopping the charging process, reducing the value of the charging cut-off voltage and using the reduced charging cut-off voltage as the charging cut-off voltage in the next charging process. In the subsequent charging process, once the overcharge occurs, the value of the charging cut-off voltage is continuously reduced until the overcharge of the rechargeable battery does not occur during the charging process. | 2014-09-11 |
20140253043 | APPARATUS AND METHOD FOR WARNING CHARGE AMOUNT OF BATTERY - Disclosed is an apparatus and method for warning a charge amount. The apparatus for warning a charge amount includes a storage unit to store an indication unit used to indicate a remaining charge amount of a battery and a warning value based on the indication unit, a measurement unit to measure an electrical characteristic value of the battery, a charge amount calculation unit to calculate a remaining charge amount from the measured electrical characteristic value of the battery, an indication unit conversion unit to convert the calculated remaining charge amount to an indication unit based on a power amount consumed in a load electrically connected to the battery by the indication unit, and a determination unit to output a warning signal when the converted remaining charge amount is less than or equal to the warning value. According to the present disclosure, a warning is provided to charge a battery before the battery is fully discharged. In this instance, the warning may be set to be provided by a unit of a desired form at a desired point in time by a user, so when the user uses a device including the battery, predictability in operation or management may be further improved. | 2014-09-11 |
20140253044 | CHARGING/DISCHARGING CONTROL CIRCUIT, CHARGING/DISCHARGING CONTROL DEVICE, AND BATTERY DEVICE - There is provided a battery device in which the accuracy of an over-current detection current value is high to have high safety. In a charging/discharging control circuit, a reference voltage circuit of an over-current detection circuit is configured to include a constant current circuit, a resistor, and a transistor having a resistance value that varies with a voltage of a secondary cell, that are connected to both ends of the secondary cell, and outputs, as a reference voltage, a voltage that is generated due to the flowing of a current of the constant current circuit to the resistor and the transistor. | 2014-09-11 |
20140253045 | METHOD AND APPARATUS FOR BATTERY CONTROL - Generally, a system and a method for controlling a battery to power a load disable battery discharge if a battery voltage is less than a low voltage. Disabling battery discharge inhibits current flow from the battery to the load. Battery discharge is enabled after receipt of a reserve enable signal even if the battery voltage is less than the low voltage. | 2014-09-11 |
20140253046 | METHOD AND APPARATUS FOR BATTERY CONTROL - Generally, a system and a method for controlling a battery to power a load determine a battery temperature and control current flow from the battery based on the battery temperature. If the battery temperature is less than a low temperature, load current is disabled and current is enabled through a resistive load to discharge the battery, at least until the battery temperature is about equal to or greater than the low temperature. | 2014-09-11 |
20140253047 | ELECTRONIC DEVICE AND SYSTEM - According to one embodiment, an electronic device includes a battery, a power supply circuit, and a charging circuit. The power supply circuit supplies power to components in the device by using DC power from an AC power supply or DC power from the battery. The charging circuit charges the battery by using the DC power from the AC power supply. The charging circuit includes a charger IC that controls a charging current and a charging voltage which are output from the charging circuit to the battery. The charger IC includes a first input terminal for monitoring a temperature of the AC power supply, and performs control for reducing the charging current when the temperature of the AC power supply exceeds a first temperature during the charging of the battery. | 2014-09-11 |
20140253048 | Method For High-Current Rapid Charging - A high-current rapid charging battery module for an electric vehicle including a case, one or more battery cells inside the case, a ventilation system that draws air upward through holes in the bottom of the case from the exterior of the vehicle, massive copper busbars, each busbar electrically connecting a positive lead on one battery cell to a negative lead on a different battery cell, an air flow cartridge between each pair of adjacent battery cells, and one or more fans arranged on top of one or more cells that blow air drawn upward through the holes in the bottom of the case away from the top of the battery module. | 2014-09-11 |
20140253049 | INFORMATION PROCESSING APPARATUS AND BATTERY CHARGING METHOD OF INFORMATION PROCESSING APPARATUS - In accordance with one embodiment, an information processing apparatus comprises a power supply section configured to be connectable to an AC power supply, a battery, a remaining battery level detection section configured to detect the remaining battery level, a first threshold value setting section configured to set a charge level lower than a full charge of the battery, a second threshold value setting section configured to set a charge level lower than the first threshold value, and a charging condition setting section configured to output an instruction on charging of the battery such that the remaining battery level changes back and forth between the first threshold value and the second threshold value. | 2014-09-11 |
20140253050 | Recreational Vehicle User Interface System and Method - A recreational vehicle user interface (RVUI) system/method that allows centralized control and monitoring of electrical/environmental subsystems within the context of a recreational vehicle is disclosed. The system/method permits monitoring of a wide variety of electrical/environmental subsystems in this context, including but not limited to battery temperatures, battery voltages, overall system voltages, battery disconnect relays, vent fans, solar panels, cabin temperatures, battery temperature alarms, power converter modules, temperature sensitive power converters, load management controllers, AC distribution controllers, transfer switches, AC/generator inputs, storage tank levels, pumps, and other electrical loads. The system/method may be optionally configured to wirelessly communicate with a mobile device using a variety of customizable mobile user interface applications, and/or be configured to support a universal control/sensor motherboard that mates to a customizable user interface daughterboard with associated custom display/control indicia bezel/panel or integrated touch screen display/control. | 2014-09-11 |
20140253051 | CHARGING A BATTERY IN A PORTABLE ELECTRONIC DEVICE - A system and method are described for charging a battery in a portable electronic device wherein the battery is charged using a constant-current, constant-voltage charging process. In described embodiments, a resistance is received for a current loop that includes a charger and the battery. Then, during a constant-current charging phase, a constant current is output from the charger until an output voltage of the charger reaches a target voltage. The target voltage includes a battery target voltage and a compensation voltage based on the received resistance and a charging current. When the output voltage of the charger reaches the target voltage, the charger switches from the constant-current phase to a constant-voltage phase. Then during the constant-voltage phase, the charger outputs the target voltage until the charging current drops below a minimum value at which time the charging process is complete. | 2014-09-11 |
20140253052 | POWER TRANSMISSION DEVICE AND POWER TRANSMISSION CONTROL METHOD - Power transmission device that causes a power supply circuit to supply a first voltage to a first active electrode when power transmission is performed, causes the power supply circuit to supply a second voltage that is lower than the first voltage to the first active electrode and causes power reception device detection means to perform frequency sweeping at a first time interval until the power reception device is mounted, or causes the power supply circuit to supply a third voltage that is lower than the first voltage to the first active electrode and causes the power reception device detection means to perform frequency sweeping at a second time interval that is longer than the first time interval until the power reception device is removed. | 2014-09-11 |
20140253053 | RESONANT COMMUTATION SYSTEM FOR EXCITING A THREE-PHASE ALTERNATOR - An alternator has a field coil that produces a magnetic field which induces electricity in a coil arrangement. A field coil excitation system includes a generator with an output coil assembly for producing alternating electricity. A rectifier converts the alternating electricity into voltage and direct current at two nodes. A capacitor, between the nodes, has capacitance that forms a resonant circuit with inductance of the output coil assembly. Due to that resonant circuit, the voltage and direct current oscillate in a predefined phase relationship. A switch and the field coil are connected in series between the nodes. A controller renders the switch conductive for a time period specified by a received control signal. The switch is rendered non-conductive at the first occurrence of a minimum current level after the time period ends. The predefined phase relationship enables the minimum current level to be detected by sensing the voltage. | 2014-09-11 |
20140253054 | ALTERNATOR FOR A POWER GENERATION SYSTEM - An alternator for a power generation system. The alternator includes a stator. The stator includes a main output winding, a poly-phase auxiliary winding and an exciter field winding that is powered by the poly-phase auxiliary winding. The alternator further includes a rotor that includes an exciter secondary winding and a rotary field winding that is powered by the exciter secondary winding. The rotary field winding voltage is determined by the exciter secondary winding voltage. In some power generation systems, the rotary field winding current of the rotor may be directly rectified from the exciter secondary winding current by uncontrolled rectifiers. The alternator further includes a regulator that measures a current to the exciter field winding. The regulator controls the current to a set point in order to regulate an output voltage produced by the main output winding of the stator. | 2014-09-11 |
20140253055 | CONVERTER LIFETIME IMPROVEMENT METHOD FOR DOUBLY FED INDUCTION GENERATOR - The present techniques include methods and systems for operating converter to maintain a lifespan of the converter. In some embodiments, the operating frequency of the converter may be increased such that stress may be reduced on the bond wires of the converter. More specifically, embodiments involve calculating the aging parameters for certain operating conditions of the converter operating in a maximum power point tracking (MPPT) mode and determining whether the MPPT operation results in aging the converter to a point which reduces the converter lifespan below a desired lifespan. If the MPPT operation reduces the converter lifespan below the desired lifespan, the frequency of the converter may be increased such that the converter may be controlled to operate at a percentage of MPPT. Thus, in some embodiments, power output may be optimized with respect to maintaining a desired lifespan of the converter. | 2014-09-11 |
20140253056 | Power Supply with Adaptive-Controlled Output Voltage - A power supply circuit includes a pre-regulator configured to receive an input voltage and to generate an output voltage, and a switching current regulator coupled to an output of the pre-regulator and configured to regulate a level of current supplied to an output load. The switching current regulator is controlled by a switching signal having a duty cycle. The circuit further includes a controller that generates the switching signal. The controller monitors the duty cycle of the switching signal and controls a level of the output voltage generated by the pre-regulator by providing a control signal in response to the duty cycle of the switching signal. | 2014-09-11 |
20140253057 | Compensation Scheme to Improve the Stability of the Operational Amplifiers - A right-half plane (RHP) zero (RHZ) compensation scheme to improve the stability of the operational amplifier. A resistance R | 2014-09-11 |
20140253058 | CONTROLLER FOR A POWER CONVERTER AND METHOD OF OPERATING THE SAME - A controller for use with a power converter including a switch configured to conduct to provide a regulated output characteristic at an output of the power converter, and method of operating the same. In one embodiment, the controller includes a linear control circuit, coupled to the output, configured to provide a first control signal for the switch as a function of the output characteristic. The controller also includes a nonlinear control circuit, coupled to the output, configured to provide a second control signal for the switch as a function of the output characteristic. The controller is configured to select one of the first and second control signals for the switch in response to a change in an operating condition of the power converter. | 2014-09-11 |