39th week of 2014 patent applcation highlights part 19 |
Patent application number | Title | Published |
20140285074 | ELECTRONIC APPARATUS | 2014-09-25 |
20140285075 | DISHWASHER - A table top dishwasher comprises: (a) a tub ( | 2014-09-25 |
20140285076 | LAUNDRY TREATMENT APPARATUS - A laundry treatment apparatus including a front panel with an inclined front surface and an opening for the introduction and removal of laundry located on the inclined surface, a door rotatably mounted to the inclined front surface to open or close the opening, and a damper module between the front panel and the door to apply torque to the door in a direction opposite to a rotating direction of the door when the door is rotated due to self-load (or self-weight) of the door. The damper module applies torque to the door in a direction opposite to a rotating direction of the door when an angle between the front panel and the door is within a range of a prescribed angle, preventing the door from being open or closed due to self-load (or self-weight) of the door, enhancing user convenience. | 2014-09-25 |
20140285077 | DISHWASHER - A dishwasher is provided. The dishwasher may include a tub forming a washing space, a rack received in the washing space of the tub and having an accommodating space to receive items to be washed, and a support provided in the accommodating space of the rack to receive and support the items to be washed. The support may be inserted into the rack, and may have a rotation shaft that is formed outside the accommodating space. | 2014-09-25 |
20140285078 | VERTICALLY ADJUSTABLE SHELF SUPPORT ASSEMBLY FOR AN APPLIANCE - An appliance is provided having one or more racks or shelves, the position of which may be adjusted vertically. Multiple different positions along the vertical direction can be made available for selection by a user of the appliance. One or more mechanisms allow for the selective adjustment and securing of the vertical position at which a shelf may be located. | 2014-09-25 |
20140285079 | VENDING MACHINE WITH DOOR PULL ASSEMBLY - A vending machine includes a cabinet; a door, a bar, and a puller. The door is rotatable relative to the cabinet. The bar is mounted to the door. The puller includes a cylinder and a rod. The cylinder is fixed to the cabinet. A joint is attached to one end of the rod. The joint is slidable on the bar. The cylinder can draw the rod. The rod can pull the door relative to the cabinet. | 2014-09-25 |
20140285080 | DOUBLE-WALLED DRAWER FRAME WITH AN INNER WALL AND AN OUTER WALL - Double-walled drawer frame with an inner wall and an outer wall that can be bonded to each other, preferably with adhesive, wherein the inner wall has an inner wall bonding section and the outer wall has an outer wall bonding section, wherein the inner wall bonding section and the outer wall bonding section are arranged in the interior of the double-walled drawer frame in the assembly position and can be bonded to each other for the bonding of the inner wall with the outer wall, wherein the inner wall can be stably fixed in its position relative to the outer wall by a mechanical holding device that can be bonded to the inner wall bonding section and the outer wall bonding section. | 2014-09-25 |
20140285081 | VENDING MACHINE - A vending machine includes a casing with an opening, a door assembly slidably attached to the casing, and a door opening/closing assembly. The door opening/closing assembly includes a mounting bracket attached to an inner wall of the casing, a gear rod slidably attached to the mounting bracket, and a driving device engaging with the gear rod. One end of the gear rod is secured to the door assembly. The driving device is capable of sliding the gear rod along the mounting bracket between a closed position, where the door assembly shields the opening, and an open position, where the door assembly is disengaged away from the opening for exposing the opening. | 2014-09-25 |
20140285082 | REFRIGERATOR - A refrigerator is provided that may include a main body having a storage compartment in which food or other items may be stored, a main door configured to open or close the storage compartment, the main door having a storage chamber separate from the storage compartment, a sub door configured to open or close an opening of the storage chamber, a tray configured to be introduced into or withdrawn from the storage chamber, a guide configured to guide movement of the tray by being compressed when the tray is introduced into the storage chamber and released from compression when the tray is withdrawn from the storage chamber, and a basket placed on the tray, the basket having a storage space therein. The guide may cause variation in a moving speed of the tray when the tray is introduced into or withdrawn from the storage chamber. | 2014-09-25 |
20140285083 | SPARK PLUG HAVING LONG SERVICE LIFE - A spark plug, including a central electrode, a first ground electrode, which is situated in a curved shape having a horizontal area and an essentially vertical area, and at least one second ground electrode, which is situated adjacent to the central electrode in such a way that a distance between the first ground electrode and the central electrode is less than a distance between the second ground electrode and the central electrode. | 2014-09-25 |
20140285084 | SELF-ALIGNED GATED EMITTER TIP ARRAYS - Methods for fabrication of self-aligned gated tip arrays are described. The methods are performed on a multilayer structure that includes a substrate, an intermediate layer that includes a dielectric material disposed over at least a portion of the substrate, and at least one gate electrode layer disposed over at least a portion of the intermediate layer. The method includes forming a via through at least a portion of the at least one gate electrode layer. The via through the at least one gate electrode layer defines a gate aperture. The method also includes etching at least a portion of the intermediate layer proximate to the gate aperture such that an emitter structure at least partially surrounded by a trench is formed in the multilayer structure. | 2014-09-25 |
20140285085 | STREAK TUBE - A steak tube has a container with an entrance plate and an output plate, a photocathode disposed in the container and configured to emit electrons according to light to be measured, the light having been incident through the entrance plate, and a sweep electrode disposed in the container, having a pair of deflection plates for generating an electric field and a connection lead connected to each deflection plate, and configured to sweep the electrons in a sweep direction along the output plate. An opposing of edges of the deflection plate in a direction of the output plate are formed so as to extend in a direction from the entrance plate to the output plate, the connection lead has a first connection portion electrically connected to the deflection plate, and the first connection portion is connected to the opposing of edges. | 2014-09-25 |
20140285086 | DEVICE FOR GENERATING MICROWAVES - A device for generating microwaves has a plurality of separately controlled microwave generators. Each of the generators includes a resonator, each with a capacitor structure formed with two electrodes that are separated by a spark gap. A high voltage supply charges the individual capacitor structures, which can be discharged by a breakdown of the spark gap. The individual capacitor structures are charged up by way of the high voltage supply device to a voltage that lies below the breakdown voltage of the individual spark gaps. A triggering device for triggering a breakdown of the respective spark gap is associated with each spark gap and the triggering devices are individually controlled by a common control device. | 2014-09-25 |
20140285087 | SMART LED CONTROLLER | 2014-09-25 |
20140285088 | LIGHT-EMITTING DIODE MODULE AND METHOD FOR OPERATING A LIGHT-EMITTING DIODE MODULE - In at least one embodiment of the LED module ( | 2014-09-25 |
20140285089 | Power Supply Circuit and Illuminating Device - According to one embodiment, a power supply circuit includes: a DC-DC converter which converts a first DC voltage supplied from a power supply flow path into a second DC voltage having a different absolute value, to supply the voltage to a DC load; and an overcurrent protection unit which is electrically connected to an end portion of the DC load on a low potential side, and performs feedback control of the DC-DC converter based on current which flows to the DC load. The DC-DC converter includes a normally-on type switching element. The overcurrent protection unit is electrically connected to the third electrode. When the current which flows to the DC load is greater than a reference value, the overcurrent protection unit changes the state of the switching element from the first state to the second state by decreasing the potential of the third electrode. | 2014-09-25 |
20140285090 | LIGHTING FIXTURES AND METHODS OF COMMISSIONING LIGHTING FIXTURES - In embodiments of the present invention, a method and system is provided for commissioning improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more LED light bars, integrated sensors, onboard intelligence to send and receive signals and control the LED light bars, and network connectivity to other fixtures. | 2014-09-25 |
20140285091 | METHOD AND APPARATUS FOR THE ZONAL TRANSMISSION OF DATA USING BUILDING LIGHTING FIXTURES - This invention relates to systems and methods for the transmission of data by a wireless controller connected between a power source and a lighting device. The wireless controller wirelessly receives control signals to control dimming and on/off operation of the lighting device. Furthermore, energy use of the lighting device is monitored and information about the energy use is sent wirelessly to a receiver. | 2014-09-25 |
20140285092 | Magnetic Coil / Transformer Modulation - A communication system with SSL light bulb assemblies comprises a first and a second transceiver. The first transceiver comprises a magnet, and the second transceiver comprises a switched-mode power converter which comprises an inductor element with an inductor core material having a magnetic field dependent permeability. The magnet and the inductor core material of the inductor element are magnetically coupled. The first transceiver is configured to modulate a magnetic field generated by the magnet to generate a modulated downstream magnetic field indicative of downstream data, and the second transceiver is configured to extract the downstream data from a measurement signal from the power converter. The measurement signal is dependent on an inductor value of the inductor element. | 2014-09-25 |
20140285093 | Lighting Control System and Lighting Control Method - According to one embodiment, a lighting control system includes a camera unit which pick up an image of a region which is illuminated by a lighting fixture, and outputs image data, and a control device. The control device performs a dimming control of a lighting fixture so that brightness in a region becomes a set value based on corrected illuminance obtained by performing a correction of illuminance of an influenced region which is influenced by illumination from another lighting fixture in the image data according to a dimming state of the other lighting fixture than the lighting fixture, and illuminance of an uninfluenced region which is not influenced by illumination from the other lighting fixture in the image data. | 2014-09-25 |
20140285094 | Light Dimming System - A light dimming system includes a plurality of luminaires, an illuminance measuring unit configured to measure illuminances of the respective luminaires, and a dimming signal output device. The dimming signal output device includes a main control unit, a correction-table-data creating unit configured to calculate, for each of the luminaires, delay times until the luminaires reach specific illuminance ratios, set the delay time of selected one of the luminaires as a reference value, create correction table data from differences between the delay times for the luminaires and the reference value, and store the correction table data, and an output control unit configured to output the dimming control signals to the luminaires side at timings based on the differences of the correction table data. | 2014-09-25 |
20140285095 | LIGHTING FIXTURES AND METHODS OF COMMISSIONING LIGHTING FIXTURES - In embodiments of the present invention, a method and system is provided for commissioning improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more LED light bars, integrated sensors, onboard intelligence to send and receive signals and control the LED light bars, and network connectivity to other fixtures. | 2014-09-25 |
20140285096 | Coded light transmission and reception - There is provides an illumination system which comprises a plurality of luminaries or light sources. Each luminary or light source comprises a light driver capable of receiving and storing a dynamic light effect pattern, and from the dynamic light effect pattern creating a light effect. The color and/or intensity of the luminary or light source is thereby dynamically varied. The light driver is further arranged to embed data in the light effect. Each luminary or light source further comprises a light emitter for emitting the light effect comprising the encoded data. A light detector is arranged to receive light emitted by other luminaries or light sources in the illumination system. A light decoder is arranged to decode data out of light received by the detector and arranged to determine the intensity of the light received. | 2014-09-25 |
20140285097 | SYNCHRONOUS REGULATION FOR LED STRING DRIVER - A light emitting diode (LED) based luminaire driving arrangement constituted of: a switched driver; a plurality of LED based luminaires arranged to receive power from the switched driver; at least one electronically controlled switch in series with at least one of the plurality of LED based luminaires and arranged to alternatively pass current through the at least one LED based luminaire when closed and prevent the flow of current through the at least one LED based luminaire when opened; and at least one synchronous driver in communication with the at least one electronically controlled switch, the at least one synchronous driver arranged to close the at least one electronically controlled switch only when the switched driver is actively supplying power. | 2014-09-25 |
20140285098 | MULTI-CHANNEL LED DRIVER ARRANGEMENTS - LED driver arrangements are disclosed comprising: an input; a plurality of switched mode boost converters, each connected to the input; and a plurality of outputs, each output having a different voltage and being for driving at least one LED string; wherein each of the plurality of switched mode boost converters is configurable to output of any one of the plurality of outputs. Controllers for such arrangements are also disclosed. | 2014-09-25 |
20140285099 | Power Supply Circuit and Illumination Apparatus - According to one embodiment, there is provided a power supply circuit including a power conversion unit, a current regulator, a controller, and a controller power supply. The power conversion unit converts an AC voltage with a controlled conduction angle into a different voltage. The current regulator includes a branch path electrically connected to the power supply path and switches between a first state in which a part of a current flowing through the power supply path flows to the branch path and a second state in which a current flowing to the branch path is lower than that of the first state. The controller switches the current regulator to the second state in at least a part of a conduction period of a detected conduction angle and switches the current regulator to the first state in a blocking period of the detected conduction angle. | 2014-09-25 |
20140285100 | Power Supply Circuit and Illumination Apparatus - According to one embodiment, provided is a power supply circuit including a power conversion unit, a controller, and an integrated circuit. The power conversion unit converts an AC voltage into a different voltage. The integrated circuit includes a current regulator that can switch between a first state in which a part of a current flowing through the power supply path flows to an input terminal and a second state in which a current flowing to the input terminal is lower than that of the first state, a controller power supply that converts a voltage into a driving voltage and supplies the driving voltage to the controller, a connection terminal for connecting an auxiliary power supply used for generating the driving voltage, and a protection circuit that blocks or decreases, when an auxiliary power supply voltage of the auxiliary power supply decreases, a current flowing to the input terminal. | 2014-09-25 |
20140285101 | Lighting Power Source and Lighting Device - According to one embodiment, a lighting light source including a current control element and a voltage-dividing resistor is provided. The current control element has a first main electrode, a second main electrode series-connected with respect to a lighting light source, and a first control electrode for controlling a current flowing between the first main electrode and the second main electrode, and controls a current supplied to the lighting light source. The voltage-dividing resistor is parallel-connected with respect to the lighting light source and connected to the first control electrode, and inputs a voltage obtained by division of a voltage of the lighting light source to the first control electrode. | 2014-09-25 |
20140285102 | HIGH POWER FACTOR, ELECTROLYTIC CAPACITOR-LESS DRIVER CIRCUIT FOR LIGHT-EMITTING DIODE LAMPS - A driver circuit for use with LED lamps. The driver circuit uses a rectifier, a power factor correction subcircuit, a voltage conversion subcircuit, and a semiconductor switch. The power factor correction subcircuit uses a film capacitor instead of an electrolytic capacitor. As well, the power factor correction subcircuit uses either an inductor or a transformer to shape the incoming current to a substantially sinusoidal waveform that is in phase with the input AC current. The semiconductor switch provides a high frequency pulsating triangular current at the output of the rectifier. | 2014-09-25 |
20140285103 | SYSTEM AND METHOD FOR CONTROLLING MAXIMUM OUTPUT DRIVE VOLTAGE OF SOLID STATE LILGHTING DEVICE - A programmable driver for driving a solid state lighting device includes a processing circuit, a voltage feedback loop and a power stage. The processing circuit is configured to determine a voltage reference signal based on a nominal current setting and a predetermined power limit. The voltage feedback loop is configured to receive the voltage reference signal and to determine a difference between a reference voltage indicated by the voltage reference signal and a drive voltage of the solid state lighting device. The power stage is configured to limit maximum output voltage for driving the solid state lighting device based at least in part on the determined difference between the reference voltage and the drive voltage of the solid state lighting device provided by the voltage feedback loop. | 2014-09-25 |
20140285104 | Method and Apparatus for Regulating the Brightness of Light-Emitting Diodes - Embodiments of the present invention relate to methods and circuits for brightness regulation for at least one light-emitting diode in the field of general lighting, more particularly, for incandescent lamp replacement by means of a supply voltage comprising a brightness level signal, wherein the brightness level signal contained in the supply voltage is decoded and converted into a modulation signal with a duty cycle corresponding to the brightness level signal for the purpose of driving a driver circuit for the at least one light-emitting diode. | 2014-09-25 |
20140285105 | COMMUNICATION PROTOCOL FOR LIGHTING SYSTEM WITH EMBEDDED PROCESSORS AND SYSTEM OPERATING WITH THE PROTOCOL | 2014-09-25 |
20140285106 | Detection Circuit, Power Circuit, and Luminaire - According to one embodiment, a detection circuit including first and second comparators and a determining unit is provided. The first comparator includes a first input terminal for inputting a first detection voltage, a second input terminal for inputting a first threshold voltage, and a first output terminal configured to output a first output signal. The second comparator includes a third input terminal for inputting a second detection voltage, a fourth input terminal for inputting a second threshold voltage higher than the first threshold voltage, and a second output terminal configured to output a second output signal. The determining unit is configured to determine the presence or absence of conduction angle control of an AC voltage and whether the conduction angle control is a phase control system or an opposite phase control system on the basis of a time difference between the first output signal and the second output signal. | 2014-09-25 |
20140285107 | LIGHTING REQUIREMENTS GENERATION SYSTEM AND METHOD - An OLN lighting requirements generation system and method including a lighting requirements generation system for an outdoor lighting network (OLN, | 2014-09-25 |
20140285108 | LIGHT-EMITTING CONTORL CIRCUIT, LIGHT-EMITTING CONTROL METHOD AND SHIFT REGISTER - A light-emitting control circuit, a light-emitting control method and a shift register. The light-emitting control circuit comprises an inputting terminal (Input), an input sampling unit ( | 2014-09-25 |
20140285109 | LIGHT EMITTING DEVICE DRIVER CIRCUIT AND CONTROL CIRCUIT AND CONTROL METHOD THEREOF - The present invention discloses a light emitting device driver circuit and a control circuit and a control method thereof. The light emitting device driver circuit converts an input voltage to an output voltage, and provides an output current to a light emitting device circuit. The present invention detects whether the output voltage exceeds a predetermined level, and if no, the regulation target of the output current is set to a relatively higher current to fast charge an output capacitor; if yes, the output current is regulated to a desired target, wherein the relatively higher current is higher than the desired target. | 2014-09-25 |
20140285110 | HIGH-EFFICIENCY BIAS VOLTAGE GENERATING CIRCUIT - Disclosed are bias voltage generating circuits and methods for a switching power supply. In one embodiment, a switching power supply can include: (i) a driver circuit configured to receive a bias voltage, and to drive a switch in a power stage of the switching power supply; (ii) where a ratio of an output voltage of the switching power supply to an expected bias voltage of the driver circuit is configured as a proportionality coefficient; (iii) a bias voltage generating circuit configured to generate the bias voltage for the driver circuit based on a first voltage; and (iv) an H-shaped inductor coupled to an input of the bias voltage generating circuit, where the first voltage is configured to be generated based on a number of turns of the H-shaped inductor and the proportionality coefficient. | 2014-09-25 |
20140285111 | Lighting Control System and Lighting Control Method - According to one embodiment, a lighting control system includes information on a corresponding relationship between each of a center area and a peripheral area and each of lighting fixtures which illuminates each of the one region and the peripheral region, in a gradation control region including the center area and the peripheral area. The CPU executes a gradation control in which an illumination range and illuminance of the gradation control region is changed by performing a dimming control of each of the lighting fixtures so that, in brightness of the gradation control region, brightnesses of the center area and the peripheral area are changed while causing the center area to be brighter than the peripheral area in proportion to a control input value which is input by a switch. | 2014-09-25 |
20140285112 | ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE - The present invention overcomes image defects such as the brightness inclination or smears by reducing the line resistance of a power source bus line which supplies electricity to organic EL elements. A plurality of pixels which are arranged in a matrix array is connected to power source lines, and the plurality of power source lines are connected to a power source bus line. Both ends of the power source bus line are connected to a power source part via a FPC. By supplying electricity to both ends of the power source bus line from the power source part, the line resistance of the power source bus line can be reduced. | 2014-09-25 |
20140285113 | ILLUMINATION CONTROL SYSTEM - An illumination control system provides wireless data transmission with a lamp through a mobile communication device. The lamp has a built-in wireless communication module and a microcontroller. The microcontroller stores a location of the lamp with latitude-longitude values and height values. Accordingly, a user may use the mobile communication device to read the latitude-longitude values and height values of the lamps to achieve an indoor positioning function by calculating a positioning information of the user through indoor positioning algorithms, and thereby enable illumination control through the mobile communication device according to the positioning information. | 2014-09-25 |
20140285114 | LED LIGHTING DEVICE, SYSTEM, AND METHOD WITH AIR QUALITY DETECTION - LED lighting devices/systems having air quality detection functions and methods for detecting air quality using the LED lighting devices/systems are provided. Exemplary LED lighting device includes an air quality detection unit configured to detect air quality parameter; a controller unit connected to the air quality detection unit to process data corresponding to the air quality parameter; an LED light source assembly controlled by the controller unit and configured to provide lighting; and an LED driver and power supply unit connected to drive the LED light source assembly, and to supply power to the entire LED lighting device. Exemplary LED lighting system includes at least two nodes each including an LED lighting device. By combining an air quality detection unit with an LED lighting device that are widely distributed and installed, the disclosed LED lighting devices/systems thus provide real-time and convenient air quality monitoring. | 2014-09-25 |
20140285115 | MULTI-CHANNEL DRIVER AND ILLUMINATING DEVICE - A multi-channel driver for driving an illuminating unit includes: a plurality of output channels for coupling with the illuminating unit; a power supply unit for supplying a driving current; a current distributing unit, which includes at least one current distributing circuit, wherein the at least one current distributing circuit includes two output channels respectively, and distributes the driving current provided by the power supply unit to the two output channels; a current detecting unit for detecting the output current output by the output channels, wherein the unit is configured with at least one current detecting circuit for the two output channels, and a control unit, wherein the control unit regulates the driving current according to the output current detected by the at least one current detecting circuit of the current detecting unit, to maintain constant output current in the output channels. | 2014-09-25 |
20140285116 | LIGHT SOURCE OPERATION - In one example implementation in accordance with the present disclosure, a process is provided. The process includes entering a first mode of operation where a plurality of light sources are permitted to illuminate. The process further includes entering a second mode of operation where the plurality of light sources associated with the first switch are not permitted to illuminate, and where the entering of the second mode of operation is in response to not detecting a presence for a time period. The process still further includes entering a third mode of operation in response to receiving a command, where only a subset of the plurality of light sources are permitted to illuminate and the remainder of the plurality of light sources are not permitted to illuminate. | 2014-09-25 |
20140285117 | Lighting Baton - According to one embodiment, a lighting baton includes at least one relay to switch between ON and OFF of power supply to at least one LED lighting load based on a control signal from outside. | 2014-09-25 |
20140285118 | LIGHT EMITTING APPARATUS CAPABLE OF SUPPRESSING NOISE - A light emitting apparatus capable of suppressing noise includes: a plurality of light emitting chips and a drive circuit. Each light emitting chip includes a plurality of light emitting units and a scanning circuit. The scanning circuit is electrically connected to the light emitting units, so as to receive a frequency signal combination, and sequentially scans the light emitting units so as to selectively enable the scanned light emitting units to emit light. The drive circuit is electrically connected to the light emitting chips, to provide a frequency signal combination for each light emitting chip. The frequency signal combinations are grouped into a plurality of groups. At least two of the groups have a delay therebetween, so that the light emitting units corresponding to a same serial number emit light successively according to the delay. | 2014-09-25 |
20140285119 | ADAPTER CABLE HAVING LIGHT SOURCE FOR LIGHTING - An adapter cable includes a first adapter, a second adapter, and a wire. The first adapter includes a sensor, a light source, and a processor. The sensor generates a detecting signal when sensing that the first adapter is picked up. The processor is connected between the sensor and the light source. The processor turns on the light source when receiving the detecting signal output from the sensor. The wire is connected between the first adapter and the second adapter. | 2014-09-25 |
20140285120 | System and Method for Managing DC Link Switching Harmonics - A distributed motor drive system includes a power management module and multiple inverter modules integrated with the motors and located on a machine or process remote from the power management module. The power management module distributes DC voltage and command signals to each of the inverters, where the DC voltage is distributed between modules via a DC link cable. The integrated inverters execute switching routines to convert the DC voltage to an AC voltage suitable for controlling the motor. Each of the power management module and the inverters includes a portion of the DC bus. The current on the DC link cable is monitored and general bus utilization as well as overload conditions are reported. | 2014-09-25 |
20140285121 | MODULATION SCHEME FOR DRIVING A PIEZO ELEMENT - The present disclosure is directed to a modulation scheme for driving a piezo element. In one embodiment, a device may comprise, for example, a piezo element, voltage rails and bridge circuitry. The bridge circuitry may be coupled between the piezo element and the voltage rails. The bridge circuitry may include at least signal sources configured to generate drive signals that cause the piezo element to generate mechanical movement while being coupled to at least one of the voltage rails. In the same or a different embodiment the bridge circuitry may further include comparators, the output of the comparators being usable to determine the resonant frequency of the piezo element. The operating frequency of the bridge circuitry may be configured based on the resonant frequency of the piezo element. | 2014-09-25 |
20140285122 | DISPLACEMENT DEVICES AND METHODS FOR FABRICATION, USE AND CONTROL OF SAME - Displacement devices comprise a stator and a moveable stage. The stator comprises a plurality of coils shaped to provide pluralities of generally linearly elongated coil traces in one or more layers. Layers of coils may overlap in the Z-direction. The moveable stage comprises a plurality of magnet arrays. Each magnet array may comprise a plurality of magnetization segments generally linearly elongated in a corresponding direction. Each magnetization segment has a magnetization direction generally orthogonal to the direction in which it is elongated and at least two of the magnetization directions are different from one another. One or more amplifiers may be connected to selectively drive current in the coil traces and to thereby effect relative movement between the stator and the moveable stage. | 2014-09-25 |
20140285123 | Solar A/C Direct Motor Drive - An electrical device comprising: a high voltage DC power storage system; a variable frequency drive comprising DC terminals, a variable frequency inverter, and a variable drive output, wherein said high voltage DC power source is direct fed to said DC terminals; and an AC motor connected to said variable drive output. | 2014-09-25 |
20140285124 | CONTROL METHOD AND DEVICE THEREFOR - In one embodiment, a method of forming a circuit to control an electrical machine may include, configuring the circuit to obtain voltage and current information of the voltage over and current in one or more stator coils; configuring the circuit to determine a stator current vector and a stator voltage vector; configuring the circuit to determine an amplitude and phase of a fundamental vector of the stator voltage vector and stator current vector; and configuring the circuit to determine a fundamental vector of a back-EMF. | 2014-09-25 |
20140285125 | MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD - This motor control device generates a voltage command value from a current command value, performs feedback control by means of a detected current flowing through a motor, and is provided with: a speed control unit that performs speed control of the motor; a voltage measurement unit that measures a voltage command value that is on the basis of the output of the speed control unit when the motor is rotating at a set speed; and a correction value calculation unit that calculates a correction value for the rotational position of the motor on the basis of the measured voltage command value. | 2014-09-25 |
20140285126 | METHOD AND CONTROL CIRCUIT FOR CONTROLLING A BRUSHLESS ELECTRIC MOTOR - The invention refers to a method for controlling a brushless, electronically commutated electric motor, a main AC voltage being rectified into an intermediate circuit direct voltage and this direct voltage being fed by an intermediate circuit containing an intermediate circuit capacitor to an inverter which is controlled by a motor control means for feeding and commutating the electric motor whereby the intermediate circuit direct voltage is monitored in respect of its voltage level and is compared with a predetermined limiting value and, on reaching or exceeding the limiting value, the intermediate circuit direct voltage is limited to the predetermined limiting value by clocked disconnection and reconnection. | 2014-09-25 |
20140285127 | APPARATUS AND METHOD FOR INITIALLY DRIVING A SENSORLESS BLDC MOTOR - Provided is a sensorless BLDC motor apparatus for providing a drive current allowing the rotor of the BLDC motor to be aligned in a predetermined direction during an initial position setting section (or for a first period of time), and providing a drive current allowing a frequency thereof to be varied at predetermined time intervals so as to accelerate the rotational speed of the BLDC motor during an open loop section (or for a second period of time), and a method using the same. | 2014-09-25 |
20140285128 | MOTOR CONTROL DEVICE FOR ELECTRIC AUTOMOBILE - A magnetic force estimating unit ( | 2014-09-25 |
20140285129 | MOTOR CONTROL SYSTEM THAT DETECTS VOLTAGE SATURATION - A motor control system comprises a plurality of control apparatuses and a host control apparatus, wherein each of the control apparatuses include a position control unit controlling position based on a position command and commanded speed from the host control apparatus, a speed control unit controlling speed based on a speed command from the position control unit, a current control unit controlling current based on a current command from the speed control unit, and a current amplifier which amplifies motor driving current based on a voltage command from the current control unit, and wherein the current control unit includes a voltage saturation processing unit which determines whether the voltage command has exceeded supply voltage of the current amplifier, and which outputs the result of the determination, and a voltage saturation notifying unit which notifies the host control apparatus of the result of the determination made by the voltage saturation processing unit. | 2014-09-25 |
20140285130 | CIRCUIT DEVICE AND ELECTRONIC APPARATUS - When a counter-electromotive force generated by an inductive load is applied to the drain of a switch element, the gate of the switching element may pull the gate potential toward the direction opposite to its original potential due to capacitance coupling of the drain-gate capacitance, and this may cause a malfunction. To cope with this, a switch element that pulls the potential to the reverse direction is provided and controlled to turn on at timing at which the counter-electromotive force is applied. | 2014-09-25 |
20140285131 | MOTOR DRIVING APPARATUS WITH ABNORMALITY DETECTION FUNCTION - The invention provides a motor driving apparatus of the invention comprises a power semiconductor device ( | 2014-09-25 |
20140285132 | ACTUATOR CONTROL CIRCUIT - An actuator comprising a single actuator housing containing within it a motor, a controller, a memory, and a position sensor having an output, a user interface for causing a first threshold value to be stored in the memory, and the controller configured and arranged to stop the motor as a function of the position sensor output and the first threshold value. | 2014-09-25 |
20140285133 | Power Metering And Control System Adaptable To Multi-Standard Device - A power control device has a voltage-regulator from power source to load, the load configurable to receive power at least at a first or second rate. The device has monitor circuitry to measure power; signal circuitry for signaling a power-reception rate to the load; and circuitry for resetting the load when the power source is overloaded. The device resets the load periodically to the second rate when the load is at the first rate. In embodiments, the power source is a thermoelectric generator or solar panel. In embodiments, the load couples through a USB connector. A companion method of charging smart loads includes applying power to the load; communicating power available to the load; configuring a battery charger in the load to absorb an amount of power less than that available; monitoring power, determining when changed configuration may optimize charging time of a smart load battery; and resetting the smart load to optimize current. | 2014-09-25 |
20140285134 | METHOD AND WEARABLE DEVICE FOR ENERGY SHARING NETWORK - A device and a method for an energy sharing network may include an energy store configured to store energy; an energy transmitter-receiver configured to transmit energy and energy related information to at least one neighbor device and to receive energy and energy related information from at least one neighbor device; and a controller configured to control the energy transmitter-receiver based on a predetermined condition. | 2014-09-25 |
20140285135 | SYSTEMS FOR HEATING A BATTERY AND PROCESSES THEREOF - A battery system is disclosed that can internally heat a battery by consuming minimal battery energy and with short heating times. | 2014-09-25 |
20140285136 | ELECTRIC CHARGING APPARATUS AND OPERATION METHOD THEREOF - An electric charging apparatus is provided. The electric charging apparatus includes a ground determination signal generating unit measuring a current signal or voltage signal that is generated from power applied from a power supply unit, the ground determination signal generating unit generating a signal for determining whether the power supply unit is normally grounded on the basis of the current or voltage signal, a power control unit generating a power control signal on the basis of a ground determination detecting signal generated from the ground determination signal generating unit, and a power cutoff unit cutting power supply to a target device to be charged on the basis of the power control signal. | 2014-09-25 |
20140285137 | Portable Power Transfer Device - A portable transfer device has input connectors and output connectors which can be used to transfer power from a first electronic device to a second electronic device. The connectors are housed in a main enclosure, which also has an auxiliary USB port. An internal power source is also housed in the main enclosure. The second electronic device can be charged through an output connector or a USB cable connected to the auxiliary USB port by draining power from the first electronic device or from the internal power source. A voltage regulation circuit is electrically connected between the input connectors and the output connectors, as well as between the auxiliary port and the input connectors. The voltage regulation circuit ensures a desirable output voltage. In addition to power transfer, the device enables data transfer when using USB connectors and ports to connect two devices. | 2014-09-25 |
20140285138 | DEVICE FOR INDUCTIVE ENERGY TRANSFER - A device for inductive energy transfer between a stationary three-phase primary system and a mobile three-phase secondary system shows a stationary iron core part and two mobile iron core parts ( | 2014-09-25 |
20140285139 | WIRELESS POWER TRANSMISSION AND RECEPTION SYSTEM - A wireless charging station, an electric vehicle charged wirelessly, and a method of charging an electric vehicle are provided. A wireless charging station include a charging unit configured to transmit power wirelessly to an electric vehicle, using a source resonator installed in the charging station; and a driving unit configured to move a target resonator connected to the source resonator from a position at which the target resonator is mounted on the charging unit to an installation space of the electric vehicle, when the electric vehicle is disposed in a charging area of the charging station. | 2014-09-25 |
20140285140 | WIRELESS POWER TRANSMISSION SYSTEM, FURNITURE HAVING WIRELESS CHARGING FUNCTION USED THEREIN, AND WIRELESS POWER TRANSMSSION APPARATUS USED THEREIN - Disclosed herein is a furniture having a wireless charging function, including: one or more transmission coil units disposed on the same plane of a flat plate of the furniture; and a central transmission controlling unit configured to select at least one transmission coil unit corresponding to a wireless power reception apparatus when the wireless power reception apparatus is placed on the flat plate, and to transmit a wireless power signal through the selected transmission coil unit, the central transmission controlling unit being installed separately from the plurality of transmission coil units. | 2014-09-25 |
20140285141 | WIRELESS POWER TRANSMITTING UNIT, WIRELESS POWER RECEIVING UNIT, AND CONTROL METHODS THEREOF - A control method of a wireless power receiving unit receiving charging power from a wireless power transmitting unit to perform wireless charging is provided. The control method includes receiving the charging power from the wireless power transmitting unit; detecting a change in a wireless charging environment; generating a message notifying of the change in the wireless charging environment; and transmitting the message notifying of the change in the wireless charging environment to the wireless power transmitting unit. | 2014-09-25 |
20140285142 | WIRELESS POWER TRANSMITTING UNIT, WIRELESS POWER RECEIVING UNIT, AND CONTROL METHODS THEREOF - A control method of a wireless power receiving unit receiving charging power from a wireless power transmitting unit to perform wireless charging is provided. The control method includes receiving the charging power from the wireless power transmitting unit; detecting a change in a wireless charging environment; generating a signal indicating detection of the change in the wireless charging environment; and transmitting the signal indicating the detection of the change in the wireless charging environment to the wireless power transmitting unit. | 2014-09-25 |
20140285143 | WIRELESS POWER TRANSMITTER, WIRELESS POWER RECEIVER, AND CONTROL METHODS THEREOF - A control method of a wireless power transmitting unit transmitting charging power to a wireless power receiving unit is provided. The control method includes receiving first signals from one or more wireless power receiving units; classifying wireless power receiving units to be communicated with from among the one or more wireless power receiving units based on reception intensities of the received first signals; transmitting wireless transmission power with predetermined level; receiving second signals including voltage information of the classified wireless power receiving units from the classified wireless power receiving units; and communicating with one or more wireless power receiving unit among the classified wireless power receiving units based on the wireless transmission power and the voltage information of the second signals. | 2014-09-25 |
20140285144 | BATTERY CHARGER CRADLE - In a battery charger cradle, a battery incorporated in a battery built-in device is charged by electric power induced to an induction coil. The cradle includes a primary coil for inducing electromotive force to the induction coil, a casing having a top plate atop of which the battery built-in device is placed, a movement mechanism for moving the primary coil along an inner surface of the top plate, and a position detection controller for detecting a position of the battery built-in device placed on the top plate and controlling the movement mechanism to bring the primary coil closer to the induction coil in the battery built-in device. When the battery built-in device is placed on the top plate, the position detection controller detects the position of the battery built-in device, and the movement mechanism moves the primary coil closer to the induction coil in the battery built-in device. | 2014-09-25 |
20140285145 | SYSTEM AND A METHOD FOR CHARGING MULTIPLE POWER RECEIVERS IN A WIRELESS CHARGING ENVIRONMENT - A wireless power charging system and a method thereof are provided. The system includes a power transmitter configured to charge one or more power receivers. The power transmitter includes a signal and control unit configured to detect the one or more power receivers present within a radio frequency range of a power transmitter, transmit a request for discovering each of the one or more power receivers, and determine whether a response is received from each of the one or more power receivers. The power transmitter further includes a regulator unit connected to the signal and control unit configured to modulate an amount of radiation to be transmitted based on the number of power receivers that provided a response and a power conversion unit connected to the regulator unit transmitting energy radiation to charge the one or more power receivers. | 2014-09-25 |
20140285146 | VEHICLE COMMUNICATIONS, POWER MANAGEMENT, AND SEATING SYSTEMS - A system for facilitating communication between a vehicle and a user includes a vehicle having a rechargeable battery and a communication and control subsystem. The communication and control subsystem is communicatively coupled to the battery to gather and transmit vehicle information, which may include battery information and a vehicle identifier. The system also includes a charging station having a charging station identifier and an electrical coupling between the charging station, a power source, and the vehicle. The electrical coupling is operable to charge the battery and includes a communicative coupling. The control subsystem is operable to receive communications from the user via the communicative coupling. | 2014-09-25 |
20140285147 | CONTROL SYSTEM, CONTROL DEVICE, AND CONTROL METHOD - A control system includes a first device configured to receive a first voltage, and convert the first voltage to a second voltage that varies according to a variation of the received first voltage. The control system also includes a second device configured to receive the second voltage and to change a charging rate of an energy storage device according to a variation of the received second voltage. | 2014-09-25 |
20140285148 | VEHICLE CHARGING DEVICE - A vehicle charging device configured such that both connectors | 2014-09-25 |
20140285149 | PIEZOELECTRIC CHARGING SYSTEM AND ELECTRONIC DEVICE USING SAME - The present disclosure relates to a piezoelectric charging system, which has two operational modes: a vibration mode and a charging mode. The system includes a piezoelectric vibrator, a driving module, a switch selecting module, a rectifying and processing module and a charging control module. The present disclosure can make full use of the mechanical energy from human beings and the ambient environment to provide the electronic device with an important energy source. Furthermore, energy can be charged to the electronic devices in real time. Furthermore, the present disclosure provides a terminal device using the piezoelectric charging system. | 2014-09-25 |
20140285150 | BATTERY-CHARGING BASE FOR MOBILE INFORMATION TERMINALS - A battery-charging base for a portable information device, which is provided so as to easily connect and disconnect, to and from a battery-charging plug connector, a battery-charging slot for a portable information terminal, is a battery-charging base that is capable of holding one of a plurality of types of portable information terminals that are different in length and width sizes and positions of battery-charging slots provided at lower ends thereof, and charging the held one of the plurality of types of portable information terminals by inserting the battery-charging plug connector into the battery-charging slot of the held one of the plurality of types of portable information terminals. The battery-charging base for a portable information terminal includes: a holding base main body for holding the one of the plurality of types of portable information terminals on a main mounting surface inclined with respect to a horizontal surface; and a battery-charging cover including a first housing section capable of housing the battery-charging plug connector while changing a housing position thereof, the battery-charging cover being fixed to a lower end of the main mounting surface in a freely removable manner. The battery-charging cover is configured to support the lower end of the one of the plurality of types of portable information terminals to be held on the main mounting surface, and is rotatable about a first rotation axis provided at a lower end portion thereof | 2014-09-25 |
20140285151 | Method for Equalizing Different States of Charge of Batteries - A method for reducing a total charge loss of battery cells by equalizing states of charge includes making an initial check as to whether a temperature of at least one balancing unit lies below a preselectable temperature limit. Thereupon a check takes place as to whether a charging process of the battery cells has completed and the state of charge of the battery cells is >90%. A determination then follows as to whether a maximum state of charge difference between battery cells lies above an adjustable limit (DELTA_SoC). | 2014-09-25 |
20140285152 | Method for Reducing the Total Charge Loss of Batteries - A method for reducing a total loss of charge of battery cells by balancing states of charge includes checking boundary conditions as to whether a vehicle is in the park mode, whether a previous balancing step occurred in the past by at least a defined time period, whether a temperature of a balancing unit lies below an adjustable temperature limit and whether states of charge of all battery cells exceed a minimum state of charge. Additionally, the method includes determining a need for balancing such that a check is made as to whether a maximum difference of all states of charge of all battery cells is greater than an adjustable limit state of charge. Also the method includes, balancing by the balancing units if the first two steps of the method are affirmed. The balancing resistances are connected to respective battery cells for a predetermined time. | 2014-09-25 |
20140285153 | METHOD FOR OPERATING MOLTEN SALT BATTERY - Provided is a method for operating a molten salt battery having a sodium compound (NaCrO | 2014-09-25 |
20140285154 | Systems and Methods for Restoring Service Within Electrical Power Systems - Systems and methods for restoring service within electrical power systems are disclosed. The methods may include identifying a restoration path for an outage area within a power system, selecting a mobile energy resource connection site that is electrically connected to at least one of the restoration path and the outage area, sending power injection requests to a plurality of mobile energy resources, at least some of which may be proximate the connection site, receiving power injection acceptances from participating ones of the plurality of mobile energy resources, and implementing the restoration path. The systems may include a processor and a computer readable storage medium having a plurality of machine-readable instructions embodied thereon and con figured for execution by the processor to carryout the method. | 2014-09-25 |
20140285155 | POWER CONVERSION DEVICE HAVING BATTERY HEATING FUNCTION - A power conversion device includes a sensor and a controller, The sensor detects a predetermined condition. The controller controls heating of a battery when the predetermined condition is detected by the sensor. The controller controls heating of the battery based on at least one of a battery charging operation or a battery discharging operation. | 2014-09-25 |
20140285156 | Battery-State Monitoring System - A battery-state monitoring system for precisely and efficiently estimating the state and service life of each of a plurality of storage batteries while suppressing variations in voltage between the batteries in a large-scale power-supply system that is provided with the storage batteries charged with power generated by utilizing natural energy is provided. The system includes a power supply control device that detects a current in each storage battery, an end device that measures temperature, voltage, and internal resistance of each battery, the internal resistance being measured by using at least two or more kinds of frequencies, and a prime monitoring device that acquires measurement data from the end device corresponding to each battery and issues an instruction related to an operation to the power supply control device and the end device. The prime monitoring device estimates degradation of each battery based on one or more of temperature, voltage, internal resistance. | 2014-09-25 |
20140285157 | METHOD FOR ADJUSTING NICKEL-METAL HYDRIDE STORAGE BATTERY - In a method for adjusting a nickel-metal hydride storage battery, based on a correlation between a charge amount after valve opening and an increased amount of a discharge reserve capacity which are previously ascertained, the charge amount after valve opening corresponding to a target value of the set increased amount of the discharge reserve capacity is calculated and this calculated value is set as a target charge amount after valve opening. In a discharge reserve adjusting step, when a charge amount of the battery from the time when a safety valve device is opened after start of overcharge of the battery reaches the set target charge amount after valve opening, overcharge of the battery is terminated. | 2014-09-25 |
20140285158 | REGULATOR, BATTERY CHARGING APPARATUS AND BATTERY CHARGING METHOD - [Problem to be Solved] | 2014-09-25 |
20140285159 | WIRELESS CHARGER AND CHARGING METHOD - A wireless charger charges an electronic device. The wireless charger receives radio frequency (RF) from a wireless power transmitter and generates alternating current (AC) electricity. The wireless charger coverts the AC electricity to direct current (DC) electricity and charges the electronic device using the DC electricity. | 2014-09-25 |
20140285160 | On-Demand Electric Power System - An on-demand electric power system for providing on-demand electric power in remote locations. The on-demand electric power system generally includes a protective housing, an engine-generator within the protective housing, a control switch electrically positioned between the engine-generator and an electric load, and a control unit in communication with the engine-generator and the control switch to control operation of the engine-generator along with electrical power to the electric load. The control unit detects when electrical power is required by an electric load and then first starts the engine-generator. After a period of time, the control unit then closes the control switch to provide electrical power to the electric load. | 2014-09-25 |
20140285161 | METHOD AND SYSTEM FOR MONITORING THE PROGRESSIVE CHARGING OF AN AUTOMOBILE ALTERNATOR, AND AUTOMOBILE ALTERNATOR COMPRISING SUCH A SYSTEM - The method according to the invention involves limiting the charging of a vehicle alternator by only authorizing progressive augmentation of a current duty cycle (DC) of an excitation signal ( | 2014-09-25 |
20140285162 | Power supply device for an injection moulding machine - Power supply device for a moulding machine with
| 2014-09-25 |
20140285163 | HIGHLY EFFICIENT PFC CIRCUIT AND CONTROL METHOD THEREOF - A PFC circuit includes: a switching circuit having a power switch; an on time control circuit for controlling an on time period of the power switch; a first off time control circuit; a second off time control circuit; and a logic circuit selectively controls the power switch working under CCM or DCM; when working under CCM, the first off time control circuit controls an off time period of the power switch and when working under DCM, the second off time control circuit controls the off time period of the power switch. | 2014-09-25 |
20140285164 | POWER SUPPLY DEVICE AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE - A power supply device includes a linear regulator including an output stage amplifier, a current sensing circuit, and a switching regulator. The current sensing circuit detects an output current of the linear regulator, and is disposed in parallel with the output stage amplifier, in a configuration corresponding to the output stage amplifier. The switching regulator operates in accordance with an output signal of the current sensing circuit. The linear regulator and the switching regulator operate in collaboration with each other to generate an output voltage at an output node. | 2014-09-25 |
20140285165 | LOW-DROPOUT VOLTAGE REGULATOR APPARATUS CAPABLE OF ADAPTIVELY ADJUSTING CURRENT PASSING THROUGH OUTPUT TRANSISTOR TO REDUCE TRANSIENT RESPONSE TIME AND RELATED METHOD THEREOF - A low-dropout voltage regulator apparatus includes a voltage source circuit, an error amplifier, an output transistor, a resistor-capacitor circuit, a detection circuit, and a current adjusting circuit. The voltage source circuit generates a reference voltage signal and at least one threshold voltage signal. The error amplifier receives the reference voltage signal and a feedback voltage signal to generate an output control signal. The output transistor provides an output current for the output terminal according to the output control signal. The resistor-capacitor circuit generates the feedback voltage signal using voltage dividing according to a voltage corresponding to the output current. The detection circuit compares at least one threshold voltage signal with the output voltage to generate at least one control voltage signal. The current adjusting circuit adaptively adjusts the current passing though the output transistor to decrease the transient response time according to the at least one control voltage signal. | 2014-09-25 |
20140285166 | LOW-DROPOUT REGULATOR AND METHOD FOR REGULATING VOLTAGE - In one embodiment a low-dropout regulator comprises a first differential amplifier (Nmos | 2014-09-25 |
20140285167 | AUTO-TUNING SWITCHING REGULATOR - In an example, a system and method are disclosed for providing a single control law that is operable to regulate both small-signal, steady-state operation, and large-signal transients of a switching regulator. The control law is based on detecting a zero-crossing of capacitor current, and projecting in advance a turning point for either ramping up or ramping down capacitor voltage at a target voltage. Certain embodiments may realize the control function in high-speed analog components, although certain other embodiments may implement the same or a similar control law in a digital controller. | 2014-09-25 |
20140285168 | ADJUSTABLE VOLTAGE OUTPUT DEVICE AND ADJUSTMENT METHOD OF OPERATING VOLTAGE - This disclosure relates to an adjustable voltage output device and an adjustment method of an operating voltage, in which the adjustable voltage output device utilizes a basic input/output system for adjusting the duty cycle of the pulse width modulation (PWM) signal outputted by the PWM signal generation unit, so as to change the operating voltage outputted by the voltage generation unit. | 2014-09-25 |
20140285169 | SYSTEMS AND METHODS FOR ESTIMATING AN OUTPUT CURRENT OF A POWER CONVERSION CIRCUIT - A controller for a power conversion circuit that includes an inductor, a diode, and a switch. The controller includes a counter configured to determine, based on a first voltage input to the inductor, an on-time of the diode. The on-time of the diode corresponds to an amount of time that the diode is conducting a first current to a load of the power conversion circuit. A current estimation circuit configured to estimate, based on the on-time of the diode and an on-time of the switch, an output current of the power conversion circuit. The on-time of the switch corresponds to an amount of time that the switch is conducting a second current. A pulse width modulator is configured to provide, based on the estimated output current, a gate drive signal to the switch. The gate drive signal selectively transitions the switch between an on state and an off state. | 2014-09-25 |
20140285170 | EFFICIENT CONTROL CIRCUIT FOR BUCK-BOOST CONVERTERS AND CONTROL METHOD THEREOF - A controller used in a buck-boost converter includes a logic control circuit, a pulse width increasing circuit, a pulse width decreasing circuit, a first driving circuit and a second driving circuit. The pulse width increasing circuit generates a sum control signal based on a logic control signal generated by the logic control circuit. The pulse width increasing circuit increases the pulse width of the logic control signal by a first value to generate the pulse width of the sum control signal. The pulse width decreasing circuit generates a difference control signal based on the logic control signal. The pulse width decreasing circuit decreases the pulse width of the logic control signal by a second value to generate the pulse width of the difference control signal. The first and second driving circuit respectively generates driving signals based on the sum control signal and the difference control signal. | 2014-09-25 |
20140285171 | VOLTAGE CONVERSION CIRCUIT AND SWITCHING CONTROL CIRCUIT - In an embodiment, a voltage conversion circuit includes a first voltage conversion unit stepping up or stepping down an input DC voltage and a second voltage conversion unit stepping up or stepping down an input DC voltage. A switcher is configured to switch between using both the first and second conversion units or just one of the first and second conversion units. The switcher can optionally be controlled according to an input voltage level such that both the first and second voltage conversion units can be used for a voltage step-up or voltage step-down operation or just one of the first and second voltage conversion units can be used. | 2014-09-25 |
20140285172 | POWER CIRCUIT - According to one embodiment, the power circuit includes a first feedback loop which feedbacks information on an output voltage and a second feedback loop which feedbacks information on a load current. When the load current is smaller than a predetermined threshold value, the second feedback loop is blocked and a PWM signal is generated using data of a feedback current signal which is stored before blocking the second feedback loop. | 2014-09-25 |
20140285173 | System and Method for Providing Adaptive Dead Times - System and method for adaptively altering a power supply's dead time. A method comprises detecting a start of a dead time, detecting an ending condition of the dead time, and ending the dead time. The detecting of the ending condition is based on a first current flowing through a lower portion of the power supply or a second current flowing through a gate driver of a lower switching element in the power supply. | 2014-09-25 |