| 18th week of 2014 patent applcation highlights part 22 |
| Patent application number | Title | Published |
|---|
| 20140117849 | Driving IC-incorporated Fluorescent Display Device - In a driving IC-incorporated fluorescent display device, a filament end-supporting member including a structure which has a short distance between a filament and an anode substrate and is not compromised to shielding effect of the driving IC is provided. An end portion of the filament is sandwiched between a tabular support which is attached to a tabular portion of a retainer plate and a ribbon, and the ribbon is fixed to the support by spot welding. The support consists of a slit. The filament is opposed to the slit and extends to longitudinal direction of the slit. The opposite side of the filament of the slit is closed by the retainer plate. | 2014-05-01 |
| 20140117850 | ELECTRICAL CONNECTION DEVICE FOR A HEADLAMP - An electrical connection device for the connection between an electronic control unit (M) and an automotive vehicle headlamp. The electronic control unit has at least one control output (Mc) and a power supply output (Mp), the headlamp comprising at least one first module comprising a first control circuit having at least one power input ( | 2014-05-01 |
| 20140117851 | ILLUMINATION SYSTEM - An illumination system includes a lighting unit, a rectifier circuit, a drive circuit and a time control circuit. The rectifier circuit rectifies an AC power from an external power source to a DC power. The drive circuit is configured for receiving the DC power and generating a first driving current. The control circuit includes a resistive element and an energy storage element. The energy storage element is electrically coupled to the resistive element, and the energy storage element is configured for charging while the external power source is supplying the power to the illumination system and generating a second driving current to the lighting unit. When the external power source turns off, the energy storage element generates a discharging current to the lighting unit with the resistive element to extend the time duration which a bright state of the lighting unit goes to a dark state. | 2014-05-01 |
| 20140117852 | ADAPTIVE CONTROLLED OUTDOOR LIGHTING SYSTEM AND METHOD OF OPERATION THEREOF - A lighting system ( | 2014-05-01 |
| 20140117853 | LED LAMP, ILLUMINATION DEVICE INCLUDING THE LED LAMP AND CURRENT CONTROL METHOD OF THE LED LAMP - An LED lamp | 2014-05-01 |
| 20140117854 | LED LIGHTING DRIVER - A light-emitting diode (LED) lighting driver is provided, which includes a bridge rectifier, multiple LED sections, multiple shunt regulators, a weighted current mirror array, a mean power integrator, and a reference generator. The bridge rectifier provides a rectified sinusoidal voltage. The LED sections are coupled in series and coupled to the rectified sinusoidal voltage. Each shunt regulators regulates a shunt current flowing out from the LED sections according to a current reference value. The weighted current mirror array provides a plurality of copy currents. Each copy currents tracks the conduction time of one shunt regulator and also tracks the instantaneous output power of the LED sections. The mean power integrator provides a mean power value by integrating the copy currents. The reference generator provides the current reference values. Each current reference values is directly proportional to the difference between a mean power reference value and the mean power value. | 2014-05-01 |
| 20140117855 | LED LIGHT ILLUMINATING CONTROL SYSTEM AND METHOD - The disclosure provides a LED light illuminating control system and a control method for illuminating LED ceiling lights, the system being applied in an electronic device. A detecting unit determines the entry of a person into the room, a capturing unit positioned on a ceiling of the room for captures image, and all the LED lights are illuminated, then all the LED lights other than those illuminating the location of the person are switched off. When the person moves to another part of the room, the LED light illuminating control system controls all the LED lights to illuminate, and after a set period switches off all the LED lights other than those illuminating the new location of the person, thus saving a lot of power. | 2014-05-01 |
| 20140117856 | CONTROL APPARATUS AND METHOD FOR AUTOMATICALLY TURNING STREET LAMPS ON OR OFF - The present invention relates to a control apparatus and method for automatically turning a street lamp on or off The apparatus includes: a light measuring unit for measuring the external illumination around a street lamp in real time; a light collecting unit for recording the external illumination over a predetermined period to perform periodic updates; a reference illumination calculating unit for analyzing the external illumination to calculate a turn-on brightness level and a turn-off brightness level which are respectively references for output controls for turning the street lamp on and off; and an output controller for comparing the turn-on brightness level, the turn-off brightness level, and the external illumination to control the output power supply voltage for the street lamp. | 2014-05-01 |
| 20140117857 | ILLUMINATION SYSTEM - An illumination system for a projection apparatus includes a light source module, an integrating rod and an optical detecting module. The light source module is capable of emitting an illuminating light beam. The integrating rod has a light entrance surface facing toward the light source module. The optical detecting module includes a light guiding device and an optical detecting device. The light guiding device has a first end surface and a second end surface. The first end surface is farther away from the light entrance surface of the integrating rod than the second end surface. The optical detecting device is disposed adjacent to the first end surface of the light guiding device and electrically connected to the light source module. The light source module is capable of adjusting intensity of the illuminating light beam according to randomly emitted light detected by the optical detecting device. | 2014-05-01 |
| 20140117858 | LIGHT CONTROLLER AND METHOD FOR CONTROLLING LIGHTS - A method of estimating the occurrence of midnight on a given day comprises the steps of determining the average night length (NLAVE) by averaging the night lengths (NL) between a night starting time (NST) as determined by a photosensor and a night ending time (NET) determined by a photosensor for each of a plurality of days, and estimating midnight to occur at the time that is one half of the average night length (NLAVE) after the night starting time (NST) for the given day. This estimate of midnight to control the operation of lights or other equipment without the need for clocks or constant power. | 2014-05-01 |
| 20140117859 | CONTROLLABLE LIGHT SOURCE - A controllable light source is provided that includes a load control circuit and an integrated lighting load. The controllable light source is configured to receive wirelessly communicated commands transmitted by a remote control device associated with the controllable light source, such as a rotary remote control device. The controllable light source may include an actuator for associating the controllable light source with the remote control device, such that the load control circuit is operable to adjust the intensity of the lighting load in response to wireless signals received from the remote control device. The controllable light source may support the actuator such that the actuator may be actuated when the controllable light source is installed in a fixture. | 2014-05-01 |
| 20140117860 | DISPLAY APPARATUS AND METHOD OF REPAIRING THE SAME - Provided is a display apparatus including a plurality of unit pixels, each including a plurality of sub-pixels; a first line branched in a first direction from a common line as many as the number of sub-pixels in each of the unit pixels so as to connect sub-pixels emitting light of the same color in neighboring unit pixels to each other; a second line extending in a second direction that crosses the first direction and connected to the sub-pixels; and a third line adjacent to the second line, extending in the second direction, and including a hole formed on a portion where the first line and the third line cross each other, and connected to the sub-pixels. | 2014-05-01 |
| 20140117861 | DIFFERING BOOST VOLTAGES APPLIED TO TWO OR MORE ANODELESS ELECTRODES FOR PLASMA PROCESSING - This disclosure describes a non-dissipative snubber circuit configured to boost a voltage applied to a load after the load's impedance rises rapidly. The voltage boost can thereby cause more rapid current ramping after a decrease in power delivery to the load which results from the load impedance rise. In particular, the snubber can comprise a combination of a unidirectional switch, a voltage multiplier, and a current limiter. In some cases, these components can be a diode, voltage doubler, and an inductor, respectively. | 2014-05-01 |
| 20140117862 | DRIVING CIRCUIT AND METHOD FOR PIXEL UNIT, PIXEL UNIT AND DISPLAY APPARATUS - A driving circuit and method for a pixel unit, the pixel unit and a display apparatus. The driving circuit for the pixel unit includes a switching unit, a storage capacitor (Cst), a first transistor (T | 2014-05-01 |
| 20140117863 | Strobe Device and Electric Power Supply Method Therefor - A strobe device configured to be connectable with an external power supply device to receive electric power for light emission from outside, includes: a main capacitor for storing electric charge for light emission; an internal power supply for supplying electric power to the main capacitor; and a power supply control unit configured to control supply of electric power to the main capacitor. The power supply control unit is configured to determine whether electric power is being supplied to the main capacitor from outside based on a change in a charge state of the main capacitor after a discharge of the main capacitor for light emission, and when it is determined that electric power is being supplied from outside, prevent the internal power supply from supplying electric power. | 2014-05-01 |
| 20140117864 | WHITE AC LED - A multi-color white LED which can be driven by a single current, and more particularly, to the use of a specific ratio of numbers of different color LEDs to obtain a specific desired color while running all of them at the same current. | 2014-05-01 |
| 20140117865 | AC/DC POWER CONVERTER - In one embodiment, an AC/DC power converter can include: a rectifier bridge and a filter capacitor for converting an external AC voltage to a half-sinusoid DC input voltage; a first storage component, where during each switching cycle in a first operation mode, a first path receives the half-sinusoid DC input voltage to store energy in the first storage component, and a first current through the first storage component increases; a second storage component, where a second path receives a second DC voltage to store energy in the second storage component, and a second current through the second storage component increases; and a third storage component, where in a second operation mode, the first current decreases to release energy from the first to the third storage component, where the second DC voltage includes a voltage across the third storage component through a third path. | 2014-05-01 |
| 20140117866 | Apparatus and method of operation of a low-current LED lighting circuit - An apparatus and method of operation of a low-current LED lighting circuit are disclosed. The invention utilizes high AC voltage input and unreduced voltage ripple component of the rectified DC power signal, which provides the ability to drive an LED load at high power factor at low current. The invention discloses both active and passive circuits to limit the peak current flowing to the LED and create a current source for the LED load. The proposed circuit increases reliability by optionally eliminating capacitor, inductor, and heatsink components while minimizing luminous flux fluctuations. | 2014-05-01 |
| 20140117867 | DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT - The present invention relates to a driver device ( | 2014-05-01 |
| 20140117868 | SINGLE SWITCH DRIVER DEVICE HAVING LC FILTER, FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT - The present invention relates to a driver device ( | 2014-05-01 |
| 20140117869 | DISPLAY DEVICE AND WIRELESS POWER TRANSMISSION SYSTEM - A display device with wireless power supply from power transmission means is disclosed in the disclosure. The display device comprises a display module, a system controlling module and a wireless power receiving module. The system controlling module is electrically connected to the display module. The wireless power receiving module is electrically connected to the system controlling module. The wireless power receiving module comprises a plurality of near-field coil units. The near-field coil units have individual receiving frequencies and individual output powers. The near-field coil units are configured to resonate with a transmission coil of the power transmission means. According to a transmission frequency on the transmission coil, the near-field coil unit with corresponding receiving frequency generates an electricity supply with a certain output power to the system controlling module. In addition, a wireless power transmission system is also disclosed herein. | 2014-05-01 |
| 20140117870 | DEUTERIUM LAMP POWER SUPPLY CIRCUIT - Provided is a deuterium lamp power supply circuit capable of preventing the application of a high switch-to-ground voltage to a switch when applying a voltage between a positive electrode and negative electrode to light a deuterium lamp. The power supply circuit includes a capacitor for applying a voltage between the positive electrode and the negative electrode, with one terminal of the capacitor being connected to the positive electrode; a power supply, installed between the capacitor and the negative electrode, for charging the capacitor; and a two-terminal switch connected in parallel to the power supply. The switch is placed at a location close to ground, and thus a high switch-to-ground voltage is not applied to the switch. | 2014-05-01 |
| 20140117871 | BATTERY-POWERED RETROFIT REMOTE CONTROL DEVICE - A remote control device may be configured to be mounted over the toggle actuator of a light switch and to control a load control device via wireless communication. The remote control device may include a base portion and a rotating portion supported by the base portion so as to be rotatable about the base portion. The remote control device may include a control circuit and a wireless communication circuit. The control circuit may be operably coupled to the rotating portion and to the wireless communication circuit. The control circuit may be configured to translate a force applied to the rotating portion of the remote control device into a control signal and to cause the communication circuit to transmit the control signal to the load control device. | 2014-05-01 |
| 20140117872 | ADJUSTABLE NON-DISSIPATIVE VOLTAGE BOOSTING SNUBBER NETWORK - This disclosure describes a non-dissipative snubber circuit configured to boost a voltage applied to a load after the load's impedance rises rapidly. The voltage boost can thereby cause more rapid current ramping after a decrease in power delivery to the load which results from the load impedance rise. In particular, the snubber can comprise a combination of a unidirectional switch, a voltage multiplier, and a current limiter. In some cases, these components can be a diode, voltage doubler, and an inductor, respectively. | 2014-05-01 |
| 20140117873 | LIGHT EMITTING ELEMENT DRIVE CIRCUIT AND LIGHT EMITTING DEVICE - A light emitting element drive circuit includes: a plurality of signal paths that respectively propagate a plurality of signals obtained by branching an input signal, a plurality of filters different in a frequency band to pass a signal; one or more amplifiers configured to amplify a signal, one or more delay circuits configured to delay a signal, and an addition circuit that adds a plurality of signals, the filter different in the frequency band being arranged in each of the plurality of signal paths, the delay circuit being arranged in one or more of the plurality of signal paths relatively low in the frequency band, the amplifier being arranged in one or more of the plurality of signal paths relatively high in the frequency band, and an output end of each of the plurality of signal paths being coupled to the addition circuit. | 2014-05-01 |
| 20140117874 | Power Supply Device and Luminaire - According to one embodiment, a control unit subjects a light-emitting element to constant current control in a dimming degree region shallower than a dimming degree set in advance and subjects the light-emitting element to constant voltage control or constant power control in a dimming degree region deeper than the dimming degree set in advance. When a dimming signal having a deepest dimming degree equivalent to extinction of the light-emitting element is input in a lighting state of the light-emitting element, the control unit gradually reduces an optical output of the light-emitting element from an immediately preceding dimming degree to extinguish the light-emitting element. | 2014-05-01 |
| 20140117875 | SYSTEMS AND METHODS TO WIRELESSLY CONTROL ILLUMINATION CHARACTERISTICS OF WEARABLE ITEMS - Systems, apparatuses, and methods are provided that include wireless control of output characteristics. Such systems, apparatuses, and methods may include wearable items and such controllable output characteristics may relate to illumination characteristics. In one example, a wearable item includes a receiver, a power source, an illumination device adapted to illuminate a first color and a second color different than the first color, and a processor in communication with the receiver, the power source, and the illumination device. The receiver is adapted to receive a signal and communicate the signal to the processor. The processor is configured to illuminate the illumination device in one of the first color and the second color based on the signal received by the receiver. | 2014-05-01 |
| 20140117876 | DIMMABLE TORCH - The disclosure provides a dimmable torch, in order to overcome the insufficiency of the dimming control function of the torch in the prior art. The torch comprises a lamp holder ( | 2014-05-01 |
| 20140117877 | NATURAL DAYLIGHT EMULATING LIGHT FIXTURES AND SYSTEMS - A natural light emulation system employs at least one lighting assembly for providing light simulating natural light. The lighting assembly has several light engines around a light well. The light engines each have a number of light sources capable of providing light to the light well. A controller calculates lighting parameters for natural light received at a location on earth, at a day of the year and time of day. The controller then selectively operates light sources to provide light of a calculated spectrum and intensity that simulates light of a given direction. A master controller may be employed to control a group of lighting assemblies, or to control several different groups which may be simulating natural light relating to different locations, time of day or day of the year parameters. | 2014-05-01 |
| 20140117878 | MERGED-STAGE HIGH EFFICIENCY HIGH POWER FACTOR HB-LED DRIVER WITHOUT ELECTROLYTIC CAPACITOR - The present application relates to boost-resonant converter for driving high brightness LEDs (HB LED) that incorporates power factor correction (PFC) and does not require a bulky electrolytic capacitor. The new converter incorporates the PFC and the LED supplies into a single stage. The system allows a large voltage ripple across the intermediate energy storage capacitor reducing its value. Constant light output and dimming capability are obtained by variable frequency current control of the resonant converter. A high power factor is achieved by DCM boost front-end portion with controlled average output voltage. The converter is regulated by a digital controller that implements a variable-frequency variable duty ratio algorithm. Experimental results with a 15 W prototype verify near unity power factor operation, above 88% efficiency and constant lamp current over the entire operating range. | 2014-05-01 |
| 20140117879 | ENERGY SAVING MOUSE - A energy saving mouse includes a switch module, a sensing module, a light-emitting diode, a control module, and a detection circuit. The sensing module and the detecting circuit output corresponding signals to the control module according to whether the energy saving mouse is in use or not in use. The control module controls the switch module to selectively supply power to the sensing module or to the light-emitting diode and the detection circuit. | 2014-05-01 |
| 20140117880 | DISCHARGE LAMP OPERATING APPARATUS - A discharge lamp operating apparatus including: a discharge lamp; an operating circuit; a voltage measuring unit; a magnetic field applying unit; and a control unit, wherein the voltage measuring unit measures the voltage of power at sampling intervals, the control unit calculates an average value VL | 2014-05-01 |
| 20140117881 | SHOE BODY LIGHT-EMITTING DEVICE WITH A PLURALITY OF LIGHT-EMITTING FORMS - A shoe body light-emitting device with a plurality of light-emitting forms which may include a waterproof enclosure having a cavity in which a lighting control circuit can be placed; a control circuit including a microprocessor-encapsulated circuit board and a motion actuated switch, wherein the light-emitting bodies light in a predetermined way. | 2014-05-01 |
| 20140117882 | H-bridge for Combined Solenoid and Piezo Injection Control - An engine system may include a specified number of individual injectors, and an engine control unit (ECU) having a specified number of pins coupling to the individual injectors. The ECU may include a controller capable of dynamically switching between different multiplexing configurations, with each multiplexing configuration coupling individual injectors across corresponding pairs of pins. Each pin may internally couple to one half of an H-bridge structure, with an injector coupled across two pins thereby completing a full H-bridge structure, providing the flexibility to achieve combined solenoid and Piezo injection control. Specifically, each pin may be internally coupled to a low-side switch and a set of high-side switches, and the switches may be operated according to the dynamically selected multiplexing configuration and the type of injection control to perform any one or more of unipolar solenoid, unipolar Piezo, bipolar solenoid, and bipolar Piezo injection control, depending on the injector type used. | 2014-05-01 |
| 20140117883 | Active Suspension System - An active suspension system for a suspended device. The system has an electromagnetic actuator that produces force on the suspended device and that is powered by a power source, and a control system that provides control signals that cause the electromagnetic actuator to exert force on the suspended device. The control system is adapted to receive a turn-off signal that results in disabling the electromagnetic actuator from producing force on the suspended device. When the control system receives a turn-off signal it provides actuator turn-off control signals that cause the force exerted by the electromagnetic actuator to progressively transition to zero over a transition time period. | 2014-05-01 |
| 20140117884 | ELECTRIC POWER STEERING SYSTEM - An electric power steering system includes: an electric motor that generates assist torque based on steering torque; an auxiliary power supply connected in series with a main power supply that supplies electric power to the electric motor, and capable of discharging electric power to the electric motor; and a control device that controls a voltage to be applied to the electric motor. When the auxiliary power supply starts discharging electric power to the electric motor, the control device gradually increases a duty ratio of a switching element, which is a command signal for commanding the auxiliary power supply to discharge electric power. | 2014-05-01 |
| 20140117885 | MULTI-DRIVING DEVICE AND DRIVING CIRCUIT THEREOF - A driving circuit comprises three switch groups, each comprising a first switch, a second switch, a third switch and a fourth switch. The first and the second switches are coupled in series. The third switch is serially coupled to the fourth switch and coupled between the first and the second switches. An i | 2014-05-01 |
| 20140117886 | POWER OUTPUT SYSTEM AND CONTROL METHOD THEREOF - A power output system includes a first rotary power source, a second rotary power source and a clutch. The first rotary power source has a first maximum torque and a first maximum rotation speed. The second rotary power source has a second maximum torque and a second maximum rotation speed. The second maximum torque is greater than the first maximum torque, and the second maximum rotation speed is lower than the first maximum rotation speed. An output shaft of the second rotary power source is coaxial with an output shaft of the first rotary power source. The clutch is located between the first rotary power source and the second rotary power source. The clutch separates or couples the output shaft of the first rotary power source from or to the output shaft of the second rotary power source. | 2014-05-01 |
| 20140117887 | HAPTICALLY-ENABLED SYSTEM WITH BRAKING - A haptically-enabled system includes an actuator that has a first terminal and a second terminal. The second terminal is coupled to a voltage source, and a first switch is coupled to the first terminal and to ground. A second switch is coupled to the actuator. The second switch is parallel to the actuator. | 2014-05-01 |
| 20140117888 | MECHANICAL COMPONENT, MECHANICAL SYSTEM, AND METHOD FOR OPERATING A MECHANICAL COMPONENT - A mechanical component has: a mount; an adjustable part selectively set at least into a first vibration mode having a first natural frequency and into a second vibration mode having a second natural frequency; a first sensor unit providing a first sensor signal; and a second sensor unit providing a second sensor signal. The first and second sensor units are interconnected in such a way that an overall signal is generated with the aid of at least the first and second sensor signals, the overall signal having an overall ratio of a first maximum absolute value which arises in the event of an excitation of the first vibration mode, and a second maximum absolute value which arises in the event of an excitation of the second vibration mode. | 2014-05-01 |
| 20140117889 | MOTOR DRIVING DEVICE, ELECTRONIC APPLIANCE, AND VEHICLE - A motor driving device of the present invention includes: a driver that receives supply of a power supply voltage to apply a plurality of phase voltages to a motor; a voltage-division phase voltage generation portion that divides each of the phase voltages to generate a plurality of voltage-division phase voltages; a neutral point voltage generation portion that combines and divides the phase voltages to generate a neutral point voltage; a selector that outputs any one of the voltage-division phase voltages as a selection voltage-division phase voltage; a comparator that compares the selection voltage-division phase voltage and the neutral point voltage to generate a comparison signal; and a controller that generates a selection control signal of the selector and an energization control signal of the driver according to the comparison signal. | 2014-05-01 |
| 20140117890 | INITIAL STARTING APPARATUS AND METHOD FOR VEHICLE - An initial starting apparatus and method for a vehicle are provided. The initial starting apparatus includes: a converter configured to identify remaining energies of an energy storage and a battery during a wakeup mode; a controller configured to control the wakeup mode of the converter and control energy to be applied from the energy storage and the battery to a starter motor in accordance with the remaining energies of the energy storage and the battery; the energy storage configured to apply energy to the starter motor under the control of the controller; the battery configured to apply energy to the starter motor under the control of the controller; and the starter motor configured to be driven by being supplied with a combined energy obtained by combining the energies from the energy storage and the battery. | 2014-05-01 |
| 20140117891 | SEMICONDUCTOR DEVICE, ELECTRONIC APPLIANCE, AND VEHICLE - A semiconductor device has a first chip and a second chip sealed in a single package. The first chip includes a regulator which generates an internal voltage from a supply voltage, a reset circuit which monitors the supply voltage and the internal voltage to generate a reset signal, and a controlled circuit which operates by being supplied with the supply voltage. The second chip includes a controlling circuit which generates a control signal for the controlled circuit by being supplied with the internal voltage. The reset signal is fed to both the controlling circuit and the controlled circuit. | 2014-05-01 |
| 20140117892 | Speed Control for Power Tools - A power tool, typically battery-operated, such as a lawnmower, comprising: a driven element ( | 2014-05-01 |
| 20140117893 | CONTROL APPARATUS FOR AC MOTOR - A current estimation section of a motor control apparatus carries out the following processing. When an AC motor is controlled under a current feedback control scheme (sine wave control mode or overmodulation control mode), a β-axis current iβ is calculated based on a current detection value iw_sns in a sensor phase and a current command value iv* in one other phase. When the AC motor is controlled under a torque feedback control scheme (rectangular wave control mode), the β-axis current iβ is calculated based on a differential value Δiα of an α-axis current. Then a sensor phase reference current phase θx is calculated to estimate a U-phase current. Thus it is possible to use the current feedback control scheme and the torque feedback control scheme together. | 2014-05-01 |
| 20140117894 | METHOD FOR STARTING AN ELECTRIC MOTOR - A method for starting an electric motor, the motor having a main machine, exciter, and permanent magnet generator (PMG), each having a stator and a rotor, with each rotor mounted to a common shaft, the method comprising starting the main machine in an asynchronous mode by applying a starting current to the stator of the main machine to induce a damper current in a damper winding of the main rotor to generate a starting torque that initiates the rotation of the common shaft, and then running the main machine in synchronous mode by supplying running current from the exciter rotor to the main machine rotor. | 2014-05-01 |
| 20140117895 | APPARATUS FOR GENERATING MOTOR DRIVING CONTROL SIGNAL - There is provided an apparatus for generating a motor driving control signal, the apparatus including: an oscillating unit generating an oscillating signal having a preset duty ratio; a selecting unit including a first switch switching a first path connected between the oscillating unit and an output terminal and a second switch complementarily operated with respect to the first switch and switching a second path connected to the first path in parallel; and a duty adjusting unit installed on the second path between the second switch and the output terminal, adjusting a duty ratio of the oscillating signal according to a rotation speed signal of a motor, and outputting the signal having the adjusted duty ratio as a driving control signal through the output terminal. | 2014-05-01 |
| 20140117896 | APPARATUS AND METHOD FOR MOTOR DRIVING CONTROL AND MOTOR USING THE SAME - There are provided an apparatus and method for motor driving control, and a motor using the same. The motor driving control apparatus according to an embodiment of the present invention includes a driving circuit unit providing an initial driving control signal of a motor; a current detection unit detecting initial driving current generated by the initial driving control signal; and a control unit determining that back-electro motive force is generated when the initial driving current decreases to a preset critical value or below and controlling the motor to be normally driven. | 2014-05-01 |
| 20140117897 | MOTOR DRIVING APPARATUS - There is provided a motor driving apparatus capable of stably performing operation conversion between a normal mode and a sleep mode by counting a duty of the PWM signal according to a preset clock signal, the motor driving apparatus including: a pulse width modulation (PWM) signal generating unit providing a PWM signal for driving a motor; a driving unit operating normally in a normal mode and waiting for operation in a sleep mode according to a control, and driving the motor in response to the PWM signal of the PWM signal generating unit; and a driving controlling unit counting a duty of the PWM signal according to a preset clock signal to determine an operation mode of the driving unit. | 2014-05-01 |
| 20140117898 | CIRCUIT AND METHOD FOR DETECTING DUTY RATIO OF PWM SIGNAL - There are provided a circuit and a method for detecting a duty ratio of a PWM signal. The circuit includes: a counting unit counting a PWM signal; a detection indication determining unit determining whether a detection indication signal indicating a start of detection of the duty ratio of the PWM signal has been input; an edge detecting unit detecting a preset PWM edge of the PWM signal; and a duty calculating unit calculating the duty ratio of the PWM signal using a count value during a section from a k-th point in time (T(k)) (k being a natural number of 1 or more) at which the PWM edge is detected after it is determined that the detection indication signal has been input to a k+1-th point in time (T(k+1)) at which the PWM edge is detected after it is subsequently determined that the detection indication signal has been input. | 2014-05-01 |
| 20140117899 | POWER CONVERSION APPARATUS - A high-side transistor includes N (N represents an integer of two or more) high-side transistor units electrically arranged in parallel between a high-side power supply line and an output terminal for the corresponding phase. A low-side transistor includes N low-side transistor units electrically arranged in parallel between a low-side power supply line and an output terminal for the corresponding phase. A snubber circuit is provided for each pair of a high-side transistor unit and a corresponding low-side transistor unit. The high-side transistor, the low-side transistor, and the N snubber circuits are mounted on a metal base substrate. | 2014-05-01 |
| 20140117900 | Switching Frequency Modulation Utilizing Rotor Position - A control system ( | 2014-05-01 |
| 20140117901 | Switched Reluctance Initial Rotor Position Estimation - A method of estimating an initial rotor position of a switched reluctance (SR) machine having a rotor and a stator is provided. The method may comprise the steps of driving a phase current in each of a plurality of phases of the SR machine to a predefined limit, performing an integration of a common bus voltage associated with each phase, determining a flux value for each phase based on the integrations, and determining the initial rotor position based on the flux values. | 2014-05-01 |
| 20140117902 | Unknown - Sensorless brushless motor control device, comprising:
| 2014-05-01 |
| 20140117903 | BACK EMF MONITOR FOR MOTOR CONTROL - An integrated circuit includes a motor current input voltage-to-current (VI) converter that receives a motor current sensor voltage from a motor and a reference voltage to generate an output current related to a motor's current. A motor current calibration VI converter compensates for errors in the motor current input VI converter and generates a calibration output current based on the reference voltage, wherein the output current and the calibration output current are combined to form an estimate of the motor's current. | 2014-05-01 |
| 20140117904 | Integrated Fan Drive System For Air-Cooled Heat Exchangers (ACHE) - An air-cooled heat exchanger (ACHE) for cooling process fluids used in an industrial process. In one embodiment, the ACHE is configured as a forced-draft ACHE. A support structure supports the forced draft ACHE above grade. A tube bundle is supported by the structure and is configured to receive process fluids used in an industrial process. A plenum is connected to the support structure, positioned beneath the tube bundle and configured to direct air-flow through the tube bundle. A fan is supported by the support structure and positioned beneath the plenum. Rotation of the fan produces an air-flow that is directed through the tube bundle by the plenum. A fan drive system is supported by the support structure, positioned beneath the fan and comprises a permanent magnet motor comprising a motor casing, a stator and a rotatable shaft, the rotatable shaft being connected to the fan. | 2014-05-01 |
| 20140117905 | Rotor Control - A method arranged to control a motor for driving a load is disclosed. The motor and load form at least a part of a system and the motor comprises a stator arranged to produce a varying magnetic field responsive to an applied AC voltage and a rotor arranged to rotate responsive to the varying magnetic field produced by the stator, the rotor rotating at a speed synchronised to a frequency of the applied AC voltage. The method comprises receiving a target rotor speed, determining a voltage level for the applied AC voltage for producing a magnetic field having magnetic flux of sufficient magnitude to maintain the rotor in synchronisation with the frequency of the applied AC voltage when rotating at the target speed of rotation. The voltage level is determined in accordance with the target rotor speed and a model of the system. The model comprising a plurality of model elements, wherein one or more of the model elements is indicative of an effect of one or more parts of the system on rotation of the rotor when the speed of the rotor is constant and one or more of the model elements are indicative of an effect of one or more parts of the system on rotation of the rotor when the speed of the rotor is dynamic. The method further comprising applying the applied AC voltage to the stator at the determined voltage level and at a frequency required to provide the target rotor speed. | 2014-05-01 |
| 20140117906 | DYNAMICALLY MODIFIED FAN SPEED TABLE FOR COOLING A COMPUTER - A computer program product including computer usable program code embodied on a computer usable medium for controlling a temperature within a computer system using a fan. The computer program product includes computer usable program code for monitoring the temperature within the computer system; dynamically selecting a fan speed step in response to the temperature, wherein the fan speed step is selected from a fan speed table defining a finite number of fan speed steps each having an associated fan speed; operating a fan at the dynamically selected fan speed step; measuring a fan output variation is measured over a prescribed time interval; and automatically modifying the fan speed table to change the fan speeds associated with each fan speed step, wherein the fan speeds are changed as a function of the measured fan output variation while continuing to drive the fan. | 2014-05-01 |
| 20140117907 | PULSE WIDTH MODULATION SIGNAL GENERATING CIRCUIT AND MOTOR DRIVING CIRCUIT - There are provided a pulse width modulation (PWM) signal generating circuit and a motor driving circuit. The PWM signal generating circuit includes: a proportional-to-absolute temperature (PTAT) voltage generating unit generating a PTAT voltage in proportion to an absolute temperature; a reference wave signal generating unit generating a preset reference wave signal; and a PWM signal generating unit comparing the PTAT voltage and the reference wave signal with each other to generate a PWM signal, wherein the PTAT voltage generating unit adjusts the PTAT voltage according to a control signal. | 2014-05-01 |
| 20140117908 | DYNAMICALLY MODIFIED FAN SPEED TABLE FOR COOLING A COMPUTER - A computer-implemented fan control method includes measuring a temperature within a computer system and dynamically selecting a fan speed step in response to the temperature received, wherein the fan speed step is selected from a fan speed table defining a finite number of fan speed steps each having an associated fan speed. A fan is operated at the dynamically selected fan speed step, wherein the fan is positioned to drive air through the computer system where the temperature is being measured. The fan output variation is measured over a prescribed time interval and the fan speed table is automatically modified to change the fan speeds associated with each fan speed step, wherein the fan speeds are changed as a function of the measured fan output variation while continuing to drive the fan. | 2014-05-01 |
| 20140117909 | DRIVING MOTOR FOR ELECTRIC VEHICLES AND CONTROL METHOD OF THE SAME - A driving motor for an electric vehicle includes a rotor having a field coil wound thereon and a stator having an armature coil wound thereon. The driving motor includes a motor control unit to perform temperature based control between the stator and the rotor based on which one has a higher temperature than the other, in order reduce a current value to the one having the higher temperature than the other. | 2014-05-01 |
| 20140117910 | Self-Diagnostics Within Power Electronics - This disclosure relates to diagnosing a power electronic device by itself and extending the diagnostics to an electric machine coupled with the power electronic device and deployed at an operational site. The power electronic device can power and control the electric machine. The diagnostics can include testing the status of the power electronic device, and monitoring hardware changes in the electric machine. The diagnostics can be performed within the power electronic device on demand, periodically, or both. In some instances, the self-diagnostics can evaluate whether components are defective or wired incorrectly, characterized by wrong inductance, and/or resistance, for example. In some implementations, the power electronic device includes a digital signal processing unit for the self-diagnostics and a data record system for recording and troubleshooting errors related to load performance and/or parameters. | 2014-05-01 |
| 20140117911 | ELECTROMAGNETIC ACTUATORS AND MONITORING THEREOF - An assembly includes an electromagnetic actuator ( | 2014-05-01 |
| 20140117912 | System For Detecting Internal Winding Faults Of A Synchronous Generator, Computer Program Product And Method - A system, method and computer program product for monitoring including detecting internal faults especially inter-turn faults of a synchronous generator and thus protecting the synchronous generator. The synchronous generator includes a winding for each phase of a power network, a terminal for each phase arranged on a terminal side of the synchronous generator, and connected to the respective winding, the terminals on the terminal side are connected to an electrical power network, and the synchronous generator is arranged to input power to the electrical power network by means of the terminals. | 2014-05-01 |
| 20140117913 | SYSTEM AND METHOD FOR CONTROLLING AN ELECTRIC MOTOR - A system for controlling an electric motor, based on an N-MOS switching device, allowing operation in reverse battery polarity condition and protecting the switching device against voltage peaks when in direct battery polarity condition. The system includes a power source, a switching device connected in series with the motor to switch the same between the “on” and “off” states, a control device to control the switching device, and a thyristor connected in parallel with the motor, whereby its gate terminal, and consequently its conducting or non-conducting state, are controlled by the control device. Also a method is provided for controlling an electric motor, such as in a system defined above, comprising the steps of switching a state of the thyristor in direct battery polarity conditions such that the thyristor conducts current and switching the state of the thyristor in reverse battery polarity conditions such that the thyristor does not conduct current. | 2014-05-01 |
| 20140117914 | ANALOG-SWITCH CIRCUIT AND MOTOR DRIVE APPARATUS USING SAME - An analog-switch circuit ( | 2014-05-01 |
| 20140117915 | VARIABLE FREQUENCY DRIVE VOLTAGE BOOST TO IMPROVE UTILIZATION - A variable frequency drive system including an alternating current electrical power source, an alternating current motor and a variable frequency drive connected to the power source and the motor. The variable frequency drive provides electrical power to the motor, and includes an active rectifier to convert a first alternating current from the power source to a direct current and an inverter to convert the direct current to a second alternating current. A variable frequency drive output voltage is greater than a variable frequency drive input voltage, compensating for the motor apparent current. A method of electrical power conversion includes urging a first alternating current from a power source to a variable frequency drive. The first alternating current is converted to direct current via an active rectifier of the variable frequency drive, and the direct current is converted to a second alternating current via an inverter of the variable frequency drive. | 2014-05-01 |
| 20140117916 | VARIABLE SPEED ELECTRIC MOTOR CONTROLLER - A variable speed electric motor controller includes a rotating cylinder having a variable amount of conductor material and a variable amount of insulator material along its length such that one side is mostly insulator and the other side is mostly conductor. An electrical connection, such as a brush, can contact the rotating cylinder and be moved therealong. A stationary electrical connector/brush can be permanently electrically connected to the conductor material. The flow of electricity from the movable brush to the stationary brush can be controlled by the speed of rotation of the shaft and the position of the movable brush therealong. The output can provide variable power to a load, such as an electric motor. | 2014-05-01 |
| 20140117917 | MATRIX CONVERTER - A matrix converter includes: a power conversion unit provided between an AC power supply and a rotational machine; and a controller for performing power conversion control therebetween by controlling the power conversion unit. The power conversion unit includes multiple bidirectional switches each of which has at least one first directional switching element and at least one second directional switching element. Further, the controller includes a first drive control unit performing the power conversion by simultaneously turning on both of the first directional switching element and the second directional switching element, and a second drive control unit performing the power conversion by turning on one of the first directional switching element and the second directional switching element. | 2014-05-01 |
| 20140117918 | ROBUST CONTROLLER FOR ELECTRO-MECHANICAL ACTUATORS EMPLOYING SLIDING AND SECOND CONTROL MODES - An improved technique for controlling an electro-mechanical actuator combines a sliding mode of control with a second mode of control. An error signal is generated based on the difference between an input position signal and a feedback position signal. When the error signal is above a predetermined threshold, the actuator is controlled in the sliding control mode. When the error signal is below the predetermined threshold, the actuator is controlled in the second control mode. The combination of the sliding control mode with the second control mode yields a robust controller that can tolerate large parameter variations and uncertainties without sacrificing precise steady state tracking. | 2014-05-01 |
| 20140117919 | SERVO CONTROL DEVICE - A servo control device includes a follow-up control unit that controls a control target that drives a mechanical system by a motor, a command function unit that has input therein a phase signal θ indicating a phase of a cyclic operation performed by the control target, and that calculates a machine motion command according to the phase signal θ by a preset first function, a second derivative unit that uses a second function obtained by second-order differentiating the first function with respect to the phase signal to calculate a value of the second function according to the phase signal as a second-order differential base signal, a correction-value computation unit that computes a first command correction value for correcting the motor motion command by using a product of a square value of the phase velocity, the second-order differential base signal, and a first constant, and a correction-value addition unit that calculates the motor motion command based on an added value of the first command correction value and the machine motion command. | 2014-05-01 |
| 20140117920 | MOTOR DRIVING DEVICE AND METHOD - There are provided a motor driving device and method. The motor driving device includes: an operation controlling unit generating a pulse width modulation (PWM) signal for controlling an operation of a motor; a driving controlling unit generating a short pulse signal using the PWM signal transferred from the operation controlling unit; and a power supplying unit supplying power to the motor using the short pulse signal, wherein the driving controlling unit controls the PWM signal depending on a control signal provided from the outside to generate the short pulse signal. | 2014-05-01 |
| 20140117921 | METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR OPTIMIZED DEVICE-TO-DEVICE CHARGING - Method, apparatus, and computer program product example embodiments provide device-to-device charging. According to an example embodiment of the invention, a method comprises receiving, by a first device, a user's selection of a charging criterion for balancing stored charges in the first device's own battery and in a second device's rechargeable battery; determining, by the first device, that recharging of the second device's rechargeable battery is required; computing, by the first device, an amount of charging required for the second device's rechargeable battery, in order to satisfy the user's selected charging criterion; and transmitting, by the first device, power provided by the first device's own battery, to the second device, for charging the second device's rechargeable battery until the present level of stored battery charge in the second device's rechargeable battery reaches the computed amount of charging required. | 2014-05-01 |
| 20140117922 | PORTABLE DC POWER TOOL BATTERY ADAPTER AND CHARGER WITH USB INTERFACE - A portable power tool adapter device used to power and charge an electronic device. The power tool adapter device may include an adapter housing with mechanical fittings configured to mate with various power tool battery types, a charger board circuit for controlling various functions of the adapter device, a DC-to-DC step down converter and regulator for converting the high voltage from the power tool to a low voltage, specialized battery input connectors for electrically connecting the battery to the charger board circuit, heat vents for dissipating heat generated by the charger board circuit, a regulator feedback circuit for maintaining output voltages at desired levels, and a multi-pin input/output connector for charging the power tool battery and supplying multiple output voltages when connected to an external connector module. | 2014-05-01 |
| 20140117923 | HIGH VOLTAGE DEDICATED CHARGING PORT - Circuitry in a portable device may be attached to external device, such as a power supply, to receive a voltage at a desired voltage level from the external device. The circuitry may assert one of several electrical configurations on the cabling that electrically connects the portable device to the external device to indicate to the external device a desired voltage level. | 2014-05-01 |
| 20140117924 | CHARGER SYSTEM, DIGITAL INTERFACE CIRCUIT AND ASSOCIATED CONTROL METHOD - A charger system with a digital interface circuit, wherein the digital interface circuit has an N-bit control register, wherein N is a positive integer no less than 2, and wherein the N-bit register has a primary state machine, at a first portion of addresses of the control register, configured to instruct operation statuses of a system management bus host; and a secondary state machine, at a second portion of addresses of the control register, configured to instruct a data bit of transmission of a corresponding control instruction under each of the operation statuses of the system management bus host. | 2014-05-01 |
| 20140117925 | APPARATUS AND METHOD FOR CONNECTING MULTIPLE-VOLTAGE ONBAORD POWER SUPPLY SYSTEMS - An apparatus and a method are proposed for connecting multiple-voltage onboard power supply systems, wherein the apparatus comprises at least one DC/DC voltage converter ( | 2014-05-01 |
| 20140117926 | WIRELESS POWER CHARGER - A wireless power charger includes a shell, a circuit board, a displacement adjusting device and transmitter coils disposed in the shell. The circuit board has a position detection controller for detecting a position of a charging target placed on the shell. A rack is mounted to the displacement adjusting device for only horizontally rotating along with the displacement adjusting device, or horizontally rotating along with the displacement adjusting device and further sliding linearly along a radial direction. The transmitter coils are positioned on the rack. In use, the displacement adjusting device is controlled by the position detection controller to only horizontally rotate the rack, or horizontally rotate the rack and further linearly slide the rack, so as to bring the transmitter coils closer to a receiver coil of the charging target and realize inductive coupling therebetween for charging the charging target. | 2014-05-01 |
| 20140117927 | Multifunction Single Antenna for Contactless Systems - A multifunction antenna is described in which the multifunction antenna is divided into a first segment and a second segment by an impedance circuit that produces low impedance at a low frequency and high impedance at a high frequency. A high frequency radio frequency (HF-RF) signal may be transmitted or received using only the first segment of the multifunction antenna from a HF-RF transceiver by blocking the HF-RF signal from the second segment by the impedance circuit. A low frequency radio frequency (LF-RF) signal may be received using both the first segment and the second segment of the multifunction antenna by passing the LF-RF signal through the impedance circuit. | 2014-05-01 |
| 20140117928 | WIRELESS CHARGING THIN-FILM BATTERY - A wireless charging film-battery includes a flexible printed circuit board which includes a first surface, a film-battery module which is arranged on the first surface of the flexible printed circuit board; a wireless charging module and an antenna which are printed on the first surface of the flexible printed circuit board and the wireless charging module is electrically connected to the film-battery module. | 2014-05-01 |
| 20140117929 | Assemblage for inductive energy transfer to an electrically drivable vehicle - An assemblage for inductive energy transfer to an electrically drivable vehicle is proposed, which assemblage encompasses a secondary coil and a first signal processing unit. The first signal processing unit is configured to process energy received from the secondary coil, and the assemblage is configured to dispose the secondary coil and a tubular frame portion of the vehicle coaxially with one another, coupling of the secondary coil and the tubular frame section with good thermal conductivity being achieved. | 2014-05-01 |
| 20140117930 | Non-Contact Charging Apparatus for Mobile Body and Non-Contact Charging Method for Mobile Body - A non-contact charging apparatus for a mobile body has a power-receiving device disposed in an electric car, and a power-transmitting device disposed in a manner of non-contact with the power-receiving device. The power-receiving device has a plurality of power-receiving coils distributively arranged in prescribed locations of the car to receive external electric power. The power-transmitting device has a plurality of power-transmitting coils arranged in prescribed locations outside of the electric car corresponding to the plurality of power-receiving coils to transmit electric power. The non-contact charging apparatus for a mobile body transmits electric power in a non-contact manner from the plurality of power-transmitting coils to the plurality of power-receiving coils and charges a secondary battery. Since a plurality of power-receiving coils are provided, electric power can be transmitted efficiently even when there are installation-space or installation-shape constraints. | 2014-05-01 |
| 20140117931 | ELECTRONIC APPARATUS AND CONTROL METHOD FOR WIRELESSLY RECEIVING POWER FROM A POWER SUPPLY APPARATUS - An electronic apparatus includes a power receiving unit configured to wirelessly receive power from an external apparatus, a resonance unit configured to set at least one of a resonant frequency of the power receiving unit and a characteristic value of the electronic apparatus, the characteristic value indicating a resonance characteristic of the electronic apparatus, and a control unit configured to, before the electronic apparatus performs a predetermined operation, detect data indicating power for performing the predetermined operation, and control the resonance unit to set at least one of the resonant frequency of the power receiving unit and the characteristic value of the electronic apparatus based on the detected data, wherein the control unit is configured to perform the predetermined operation by using power received based on the at least one of the resonant frequency and the characteristic value of the electronic apparatus set by the resonance unit. | 2014-05-01 |
| 20140117932 | Moving Object, Wireless Power Feeding System, and Wireless Power Feeding Method - An object is to provide a moving object structure capable of reducing power loss caused when power is supplied from a power feeding device to a moving object by wireless communication. Another object is to provide a moving object structure capable of reducing the strength of a radio wave radiated to the surroundings. Before power is supplied to a moving object, a radio wave for alignment of antennas is output from a power feeding device. That is, radio waves are output from a power feeding device in two stages. In a first stage, a radio wave is output to align positions of antennas of the power feeding device and the moving object. In a second stage, a radio wave is output to supply power from the power feeding device to the moving object. | 2014-05-01 |
| 20140117933 | Charging System, Power Management Server, Vehicle Management Server, and Power Management Program - A power management server calculates a remaining time before a battery is fully charged (step | 2014-05-01 |
| 20140117934 | ELECTRIC CONSTRUCTION MACHINE - An electric construction machine is capable of increasing a battery device charging rate in a short charging time. The battery device includes a plurality of battery systems and an inverter device which has a motor driving control function of selectively connecting one of the battery systems, converting DC power supplied from the connected battery system into AC power, and supplying the AC power to an electric motor. The inverter has a battery charging control function of selectively connecting one of the battery systems and supplying electric power from an external commercial power supply to the connected battery system. When the voltages of the battery systems are less than an upper limit value V | 2014-05-01 |
| 20140117935 | DEVICE AND METHOD FOR BALANCING BATTERY CELLS - A device and method for balancing cells of a battery of an electric automobile, the device including: a primary winding arranged in series with a primary switch; and, for each cell, a circuit including, in series, a secondary winding that forms a transformer together with the primary winding, a secondary switch, a coil, and a diode mounted in parallel with the coil and the cell; and a controller controlling the primary switch and each secondary switch. | 2014-05-01 |
| 20140117936 | POWER STORAGE SYSTEM - A power storage system is provided with a battery and a battery charger which charges a battery pack having a battery voltage and current detection circuit. A charge circuit is structured such as to acquire terminal voltage information of the battery from a battery voltage detection circuit of the battery pack in a charging process, carry out a constant current charge control in a state in which the terminal voltage of the battery is equal to or lower than a previously determined reference voltage value of the battery, and switch to a constant voltage charge control maintaining the output voltage of the charge circuit in the case that the terminal voltage of the battery goes beyond the reference voltage value, thereby carrying on the charge until the battery is fully charged. Therefore, the power storage system can accurately charge the battery to a prescribed amount safely. | 2014-05-01 |
| 20140117937 | POWER SUPPLY APPARATUS AND POWER SUPPLY APPARATUS FOR ELECTRIC VEHICLE - There are provided an all-in-one power supply apparatus capable of concurrently supplying battery charging power and main power, in particular, main power for driving an electric vehicle, and a power supply apparatus for an electric vehicle. The power supply apparatus and the power supply apparatus for an electric vehicle respectively including: a charging unit; a main power supplying unit; and an auxiliary power supplying unit. | 2014-05-01 |
| 20140117938 | BATTERY BALANCING CONVERTER COMPRISING DIAGNOSTIC MEANS - The invention relates to a converter for balancing the charge of cells (C) of a battery. The converter is a non-dissipative type with a switched structure (MC) and balancing means. The converter further comprises diagnostic means (DIA) connected to switch matrix (MC) of the switched structure. | 2014-05-01 |
| 20140117939 | SECONDARY BATTERY MANAGEMENT SYSTEM AND METHOD FOR EXCHANGING BATTERY CELL INFORMATION - Provided is a secondary battery management system and method for exchanging information in a multi-pack parallel structure using the same, and more particularly, to a secondary battery management system and method for exchanging information in a multi-pack parallel structure using the same, including:
| 2014-05-01 |
| 20140117940 | LITHIUM-ION SECONDARY BATTERY - A lithium-ion secondary battery ( | 2014-05-01 |
| 20140117941 | Voltage Control Using Field-Effect Transistors - Described herein are techniques and architectures for gradually transitioning from voltage supplied by a primary power source to voltage supplied by a secondary power source. In particular implementations, a voltage control circuit is used to transition voltage across a load to be supplied by the secondary power source. The voltage control circuit may include a first circuit and a second circuit connected in parallel. The first circuit may include the primary power source connect to the load, while the second circuit may include the secondary power source connected to one or more field-effect transistors. The one or more field-effect transistors may be controlled to cause current of the secondary power source to be gradually transferred to the load. This may result in a transfer of the voltage across the load to be supplied by the secondary power source. | 2014-05-01 |
| 20140117942 | HYBRID ELECTRIC VEHICLE BATTERY DISCHARGER - A battery discharge device using a plurality of power modules for varying a discharge capacity of the device, and its method of use. The device can be used to discharge high-voltage, high-energy density battery packs such as might be used in hybrid or electric vehicles. The device can discharge the energy of the battery pack at a relatively constant power rate. | 2014-05-01 |
| 20140117943 | CONTROL APPARATUS AND CONTROL METHOD - Disclosed herein is a control apparatus, including: a supplying section to which a voltage which varies in response to a variation of a state is supplied from an electric power generation section; and a control section configured to change the number of battery units, for which charging is to be carried out, in response to a relationship between the voltage and a reference value. | 2014-05-01 |
| 20140117944 | PREVENTION OF OUTPUT SUPPLY BOOSTING UPON REMOVAL OF INPUT ADAPTER - A charging circuit using a switch mode power supply to charge a battery from a connected external power adapter may periodically turn off the switch mode power supply and disconnect its input terminal from the switch mode power supply. A load may be connected to the input terminal. The input terminal is monitored for voltage collapse, indicating whether or not the power adapter is connected. | 2014-05-01 |
| 20140117945 | Battery Charge Management Using Usage Profiling - A battery management system calculates expected run time for the information handling system from either an average or instantaneous power consumption and the remaining battery capacity. When power is attached to the battery, the battery management system compares an expected run time with a current usage day profile. If the information handling system is operating in a non-active use period or if system run time can extend sufficiently into the non-use period then a slow charge rate is applied which will charge the batteries up to a substantially charged state (e.g., 80-95% of full capacity) and top off of the battery is deferred such that battery is fully charged somewhat before the average beginning of the next day (e.g., approximately one to two hours before the average beginning of the next day). | 2014-05-01 |
| 20140117946 | METHOD AND SYSTEM FOR CHARGING A PLUG-IN ELECTRIC VEHICLE - A system and method for charging a battery in a plug-in electric vehicle. In an exemplary embodiment, the method determines if a delayed battery charging feature is active and if the battery is severely depleted. If both conditions are satisfied, the method enables a priority charging feature that temporarily overrides the delayed charging feature and begins charging the battery according to a priority charging process until it reaches a level where it is no longer severely depleted. At this point, the method may terminate the priority charging process and initiate the delayed charging process, which is designed to take advantage of off-peak electricity rates, anticipated times of vehicle use, etc. | 2014-05-01 |
| 20140117947 | SIGNAL PEAK DETECTOR AND DETECTION METHOD, AND CONTROL IC AND METHOD FOR A PFC CONVERTER - A control integrated circuit for a power factor correction converter has a pin for detecting an alternating-current information and a direct-current information of an input signal. The control integrated circuit comprises a signal peak detector for detecting a peak value of the input signal to the pin to obtain the direct-current information of the input signal. Since the alternating-current information and the direct-current information of the input signal can be obtained through the same pin, the pin count of the control integrated circuit can be decreased. | 2014-05-01 |
| 20140117948 | VOLTAGE CONTROL APPARATUS, CONTROL METHOD THEREFOR, AND VOLTAGE CONTROL PROGRAM THEREFOR - Provided are a control-amount separating section that separates, when it is determined that an interconnection-point voltage (Vr) at an interconnection point where a wind turbine is connected to a utility grid deviates from a target value, a target control amount for reactive power for matching the interconnection-point voltage (Vr) with the target value into a first control amount serving as a control amount for reactive power that is caused by a fluctuation in active power at the interconnection point and a second control amount serving as a control amount for reactive power that is caused by a change in a power flow in the utility grid; a wind-turbine control device that controls the switching device on the basis of the first control amount; and a capacitor-bank control device that controls the capacitor bank on the basis of the second control amount. | 2014-05-01 |
