10th week of 2016 patent applcation highlights part 59 |
Patent application number | Title | Published |
20160072307 | NON-CONTACT POWER TRANSMITTING DEVICE - A non-contact power transmitting device includes a power receiving device that includes a rectification circuit, a voltage converting circuit, and a switching circuit for connecting or disconnecting the voltage converting circuit to or from a load circuit, and a power transmitting device that includes a power transmitting circuit, a detection circuit that detects a current that is supplied to the power transmitting circuit, and a determination circuit that compares the detected current value with a threshold current set in advance, and determines whether the load circuit of the power receiving device is in contact with the power transmitting device, where the power transmitting device transmits power to the power receiving device in a non-contact manner. | 2016-03-10 |
20160072308 | WIRELESS ELECTRIC FIELD POWER TRANSFER SYSTEM, METHOD, TRANSMITTER AND RECEIVER THEREFOR - A wireless power transfer system comprises: a transmitter comprising a transmit electrode set configured to transfer power via resonant electric field coupling; and a receiver comprising a receive electrode set configured to extract the transferred power via resonant electric field coupling, wherein the electrodes of at least one of the transmit and receive electrode sets are concentric. | 2016-03-10 |
20160072309 | WIRELESS POWER TRANSMITTER DEVICE AND WIRELESS POWER RECEIVER DEVICE - A wireless power transmitter device that includes a transmitter circuit, a transmitter coil, a transmitter communication unit and a transmitter control unit is provided. The transmitter circuit generates a transmitting current. The transmitter coil receives the transmitting current to generate an electromagnetic field to induce a receiving current in a wireless power receiver device. The transmitter communication unit is configured to receive a report of a received power of the wireless power receiver device therefrom. The transmitter control unit receives the report of the received power and determines whether a frequency splitting phenomena occurs according to the received power. When the frequency splitting phenomena occurs, the transmitter control unit adjusts at least one of a configuration of the transmitter coil and a configuration of the transmitter circuit or adjusts a transmitting frequency of the transmitting current. | 2016-03-10 |
20160072310 | DRIVER FOR WIRELESS POWER TRANSMITTER SENSING REQUIRED TRANSMIT POWER FOR OPTIMUM EFFICIENCY - An auto-resonant driver for a transmitter inductor drives the inductor at an optimal frequency for maximum efficiency. The transmitter inductor is magnetically coupled, but not physically coupled, to a receiver inductor, and the current generated by the receiver inductor is used to power a load. The system may be used, for example, to remotely charge a battery (as part of the load) or provide power to motors or circuits. A feedback circuit is used to generate the resonant driving frequency. A detector in the transmit side wirelessly detects whether there is sufficient current being generated in the receiver side to achieve regulation by a voltage regulator powering the load. This point is achieved when the transmitter inductor peak voltage suddenly increases as the driving pulse width is ramped up. At that point, the pulse width is held constant for optimal efficiency. | 2016-03-10 |
20160072311 | POWER TRANSMISSION DEVICE AND WIRELESS POWER TRANSMISSION SYSTEM - A power transmission device applies a alternating-current voltage to an active electrode OPPOSING an active electrode of a power reception device with a gap therebetween, and to a passive electrode OPPOSING a passive electrode of the power reception device with a gap therebetween and transmits power via electric field coupling. The power transmission device includes a controller that monitors a voltage applied to the passive electrode. If a change in the voltage per unit time exceeds a threshold, the controller determines that a metal foreign object has become interposed between the active electrodes and a user has touched the metal foreign object, and stops the transmission of power to the power reception device. Thus, a power transmission device and a wireless power transmission system are provided that are capable of preventing with certainty a malfunction due to a foreign object when a foreign object has become interposed between electrodes. | 2016-03-10 |
20160072312 | POWER CONVERSION CIRCUIT, POWER TRANSMISSION SYSTEM, AND POWER CONVERSION SYSTEM - A power conversion circuit includes multiple input-side capacitors connected in series between input terminals; series circuits composed of high-side switching elements and low-side switching elements connected in parallel to the multiple input-side capacitors; and output-side capacitors connected between nodes and a node. The circuit further includes an output-side inductor connected to the node and a controller that alternately turns on and off the high-side switching elements and the low-side switching elements. Each of the low-side switching elements and the high-side switching elements is a MOSFET and causes current to flow from the low side to the high side using a body diode. Accordingly, there is provided a power conversion circuit that has high conversion efficiency and that is capable of realizing reduction in size, a power transmission system, and a power conversion system. | 2016-03-10 |
20160072313 | CHARGING CONTROL METHOD FOR LITHIUM-ION BATTERY, CHARGING CONTROL APPARATUS FOR LITHIUM-ION BATTERY AND LITHIUM-ION BATTERY SYSTEM - A lithium-ion battery includes a cathode active material of the Olivine-type crystal structure. The lithium-ion battery is charged under control of a charging control apparatus, which performs a charging process for charging up to a target voltage according to a constant-current and constant-voltage charging method, a negative-electrode potential evaluation process for evaluating a potential change quantity at the negative-electrode, and a voltage setting process for setting the target voltage to a lower voltage based on the potential change quantity of the negative-electrode evaluated by the negative-electrode potential evaluation process. The charging voltage is changed from the target voltage to the set voltage even when the negative-electrode potential changes with an increase in the number of charging and aging deterioration. Thus a positive-electrode potential is suppressed from rising because of less susceptibility to the increase in number of charging and aging deterioration. | 2016-03-10 |
20160072314 | Battery Detection Via Voltage Regulation Of Battery Terminals - The disclosed embodiments provide a system that manages use of a battery in a portable electronic device. During operation, the system attempts to regulate a voltage on a battery terminal in the portable electronic device to a first voltage level. Upon identifying an inability to regulate the voltage on the battery terminal to the first voltage level during a first detection period, the system detects a presence of the battery in the portable electronic device. | 2016-03-10 |
20160072315 | CONTROL METHOD FOR DISCONNECTING SWITCHES INTEGRATED IN SERIES-CONNECTED BATTERIES - Systems and methods of providing integrated battery protection for a plurality of series-connected batteries, in which a plurality of controllable switches are used to disconnect or otherwise isolate the respective batteries, substantially simultaneously, from an external circuit in response to certain fault or non-fault battery conditions. When the plurality of controllable switches are synchronously transitioned from a closed or “ON” state to an opened or “OFF” state, the voltages of the respective batteries become distributed among the controllable switches, allowing for the use of switches having a reduced voltage rating as well as a reduced cost. By connecting a balancing resistor across each of a plurality of series-connected battery/switch pairs, a more even distribution of the voltages of the respective batteries among the controllable switches can be achieved, providing the system with more predictable operation. | 2016-03-10 |
20160072316 | SYSTEM AND METHOD FOR BATTERY PACK MANAGEMENT USING PREDICTIVE BALANCING - Predictive battery pack cell balancing apparatus and methods are presented in which active bypass current switching is controlled according to initial balancing bypass current values to balance the cell depth of discharge (DOD) values by the end of a charging/discharging time period, and according to continuous balancing bypass current values representing an amount of bypass current needed to maintain a present relationship of the cell DOD values. | 2016-03-10 |
20160072317 | METHOD AND SYSTEM FOR POWER PROVISIONING - A method of operating a power adapter having multiple outputs includes setting an output priority for each of the multiple outputs and providing an output voltage at each of the multiple outputs. The method also includes measuring one or more operating parameters of the power adapter and determining that at least one of the one or more operating parameters are greater than a setpoint. The method further includes reducing the output voltage associated with at least one of the multiple output ports. | 2016-03-10 |
20160072318 | BATTERY CHARGING METHOD - The present disclosure provides a method for charging a battery. The method receives a plurality of battery parameters during the period of the battery charging, and the plurality of battery parameters are turned into fuzzification and corresponded to fuzzy rules to map out a fuzzy output. Then the fuzzy output is turned into defuzzification to obtain the value of the charging current. Therefore, the present disclosure can change the charging current adaptively to enhance the charging effect. | 2016-03-10 |
20160072319 | Electronic Device And Method Of Charging Electronic Device - A method of charging an electronic device and an electronic device includes a charger receiving first information from the electronic device; determining a charge state of the electronic device according to the first information, generating a first instruction if the charge state of the electronic device is determined to be abnormal, and adjusting the power supplied to the electronic device based on the first instruction. | 2016-03-10 |
20160072320 | OVERCURRENT DETECTION DEVICE, AND CHARGING/DISCHARGING SYSTEM, DISTRIBUTION BOARD, CHARGING CONTROL DEVICE, CHARGING/DISCHARGING DEVICE FOR VEHICLE AND ELECTRICAL APPARATUS FOR VEHICLE, USING THE OVERCURRENT DETECTION DEVICE - A first threshold Vf | 2016-03-10 |
20160072321 | Wireless Charging Device and Method Using the Same - A wireless charging device ( | 2016-03-10 |
20160072322 | PROTECTION SWITCH CIRCUIT, CHARGING CIRCUIT, AND ELECTRONIC DEVICE - A protection switch circuit includes: an input terminal configured to receive a DC input voltage; an output terminal; a switch provided between the input terminal and the output terminal; a determination circuit configured to compare the input voltage with N threshold voltages (N is a natural number); and a gate controller configured to control the switch based on a comparison result of the determination circuit, wherein the determination circuit includes: an OTPROM (One Time Programmable Read Only Memory) to which N pieces of setting data indicative of each of the N threshold voltages are written under software control, and a comparison circuit configured to compare the input voltage with each of the N threshold voltages according to the N pieces of the setting data written to the OTPROM. | 2016-03-10 |
20160072323 | SAFETY CIRCUIT FOR MULTI-FUNCTION PORTABLE POWER CHARGER - A safety circuit is provided for a portable charger having a charger battery operatively connected by a power supply to positive and negative jumper cable jacks capable of jump starting a 12V car battery as well as at least one USB port capable of charging 5V portable electronic devices. The safety circuit includes a jump start relay operatively connecting the power supply to the positive and negative jumper cable jacks; a microprocessor, and a voltage input analyzer operatively connected with the microprocessor to enable or disable the jump start relay. | 2016-03-10 |
20160072324 | DIAGNOSTIC CHARGING CRADLE AND METHODS OF USING THE SAME - A device and method for charging and testing an animal stimulus receiver is provided herein. | 2016-03-10 |
20160072325 | STATION FOR DISINFECTING AND CHARGING MULTIPLE PORTABLE ELECTRONIC DEVICES - Provided is a system for holding a plurality of chargeable portable electronic devices having an enclosure providing a compartment. At least one tray is positioned in the compartment, wherein each tray includes a plurality of slots for receiving the portable electronic devices. A plurality of charging ports in the compartment enable charging of the chargeable portable electronic devices disposed within the slots. A germicidal source positioned in the compartment sterilizes a plurality of the chargeable portable electronic devices disposed in the slots when activated. | 2016-03-10 |
20160072326 | BATTERY CYCLE LIFE THROUGH SMART OVERNIGHT CHARGING - A rechargeable mobile terminal is provided that provides a maximum charge rate of a rechargeable battery during active user hours of the day and provides the potential for applying a decreased charge rate of the rechargeable battery when the mobile terminal determines that the user has set the alarm clock function of the mobile terminal and that the time between the present time and the set alarm time (the delta time) is greater than an amount of time required to charge the rechargeable battery at a maximum charge rate. | 2016-03-10 |
20160072327 | Dock for Portable Electronic Devices - This document generally describes docking stations for portable computing devices with one or more of a variety of features, such as a near horizontal tray into which a portable computing device can be placed (e.g., a tray with an angle between 5-25 degrees from horizontal), embedded microphones and/or speakers, and/or input jacks for external microphones and/or speakers. The docking station may include one or more wireless charging modules, and may be configured to support multiple portable electronic devices. | 2016-03-10 |
20160072328 | METHOD OF IMPROVING BATTERY RECHARGE EFFICIENCY BY STATISTICAL ANALYSIS - A system and method for using statistical analysis of information obtained during a rechargeable battery charging session, wherein the method is for optimizing one or more parameters that are used for controlling the charging of a rechargeable battery during the charging session. | 2016-03-10 |
20160072329 | MULTI-FUNCTIONAL HIGH-CAPACITY PORTABLE POWER CHARGER - A portable charger is capable of jump starting a 12V car battery as well as charging 5V portable electronic devices. The charger includes a charger battery; a power supply operatively connected with the charger battery; at least one USB output jack operatively connected with the power supply for providing +5V USB power; and positive and negative jumper cable jacks operatively connected with the power supply for providing +12 V DC power to jump start a vehicle battery. | 2016-03-10 |
20160072330 | Mobile Power Supply Terminal and Power Supply Method Thereof - A mobile power supply terminal and a power supply method is presented. For the mobile power supply terminal, a trigger circuit and a control circuit are added to a conventional device. After a to-be-charged device is connected to the mobile terminal, one end of a power supply interface generates a level signal, to make the trigger circuit generate a trigger signal; and then the control circuit controls, according to the trigger signal, the mobile power supply terminal to enter a power supply mode, and controls a power supply source to charge the to-be-charged device using the power supply interface. | 2016-03-10 |
20160072331 | METHOD FOR LIMITING BATTERY DISCHARGING CURRENT IN BATTERY CHARGER AND DISCHARGER CIRCUIT - A power supply system includes a rechargeable battery to deliver a supply current to a load and a circuit to limit a discharge current when the rechargeable battery is supplying power to the load. The power supply system may further include an integrator for integrating a discharge voltage representing the discharge current that exceeds a predetermined limit, a pulse-width-modulation (PWM) circuit for producing a control signal having a PWM duty cycle representing the discharge voltage, and a driver circuit for delivering the supply current to said load according to said control signal. In one embodiment, a digital register is used to set the battery discharging current limit, in another embodiment an analog circuit is used to set the battery discharging current limit, and in yet another embodiment or a combination of the digital register and analog circuit is used to set the battery discharging current limit. | 2016-03-10 |
20160072332 | Flexible, Hybrid Energy Generating And Storage Power Cell - An apparatus includes a separator/electrolyte assembly; a first energy storage portion disposed on a first surface of the separator/electrolyte assembly; a second energy storage portion disposed on a second surface of the separator/electrolyte assembly; a first metallized piezoelectric film disposed on the first energy storage portion; and a second metallized piezoelectric film disposed on the second energy storage portion. When a force is applied to the first metallized piezoelectric film, a piezoelectric effect converts mechanical strain into electric potential and each energy storage portion stores the energy converted in the first energy storage portion and the second energy storage portion for subsequent discharge from the first energy portion and the second energy storage portion to an electronic device. | 2016-03-10 |
20160072333 | ELECTRICAL ENERGY BUFFERING SYSTEM - Electrical energy buffering system, comprising an energy source for delivering electrical energy, an energy buffer for buffering electrical energy delivered from the energy source, the energy buffer comprising a plurality of supercapacitors, and control logic for controlling the operation of the energy buffer by selectively switching the supercapacitors, wherein the plurality of supercapacitors are switchably connected in parallel to each other in a circuit comprising the energy source and an electrical power output, and the control logic comprises a buffer monitor for monitoring a parameter representing the charge or discharge state, respectively, of each of the supercapacitors and is adapted to sequentially switch single supercapacitors or groups of supercapacitors on, responsive to the detection of a first predetermined charge or discharge state, respectively, and to switch them off, responsive to the detection of a second predetermined charge or discharge state, respectively. | 2016-03-10 |
20160072334 | WIRELESS CHARGING DEVICE AND METHOD THEREOF - A wireless charging device including a housing, a coil array and a controller is provided. The housing includes a carrying surface, and the coil array is disposed in the housing. When a first electronic device and a second electronic device located on the carrying surface are respectively detected by a first coil and a second coil in the coil array, the controller generates first location information corresponding to the first coil and second location information corresponding to the second coil. The wireless charging device drives the first coil by using the first location information, so as to perform a wireless charging operation to the first electronic device. After the wireless charging operation of the first electronic device is completed, the wireless charging device drives the second coil by using the second location information, so as to perform the wireless charging operation to the second electronic device. | 2016-03-10 |
20160072335 | A WIRELESS CHARGER - The invention relates to testing charging capability a power interface of a device, for example, a USB port ( | 2016-03-10 |
20160072336 | POWER TRANSMITTER, POWER SUPPLY DEVICE, POWER CONSUMPTION DEVICE, POWER SUPPLY SYSTEM AND METHOD FOR PRODUCING POWER TRANSMITTER - The power transmitter used for wireless power supply, includes a structure in which a sheet of a conductive body forming plural layers stacked in a thickness direction in a dielectric body. The dielectric body is also located between the plural layers, and different layers of the sheet of the conductive body are electrically connected. The power transmitter easily ensures the insulation properties at a position where the electrode is disposed while improving the power transmission efficiency in the case of the wireless power supply with the electric field coupling system. | 2016-03-10 |
20160072337 | CASE AND APPARATUS INCLUDING THE SAME - A case includes a casing region made of metal and configured to cover at least a portion of an apparatus, and a coil electrically insulated from the casing region and having a ring shape or a polygonal shape having ends separated from each other, the coil being configured to be disposed outside the apparatus. | 2016-03-10 |
20160072338 | PORTABLE WIRELESS POWER CHARGING SYSEM - A portable charger tray includes an internal rechargeable power supply and a first wireless power transmitter connected to the internal rechargeable power supply for wirelessly charging a portable electronic device. A wireless power charging system includes the portable charger tray for wirelessly charging the portable electronic device and a dock for charging the internal rechargeable power supply of the portable charger tray. | 2016-03-10 |
20160072339 | POWER RECEIVING APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM - Provided is a power receiving apparatus that has an antenna for receiving power and that receives the power wirelessly from a power transmitting apparatus. The power receiving apparatus detects a voltage input into a circuit between the antenna and a load to which the received power is supplied, and adjusts an impedance between the antenna and the load to lower the voltage in the case where the voltage is greater than a predetermined threshold value. | 2016-03-10 |
20160072340 | MULTI WIRELESS CHARGING APPARATUS AND METHOD FOR MANUFACTURING THE SAME - The multi wireless charging apparatus of the present invention includes a control unit generally controlling a wireless charging procedure; a plurality of wireless charging units electrically connected to the control unit; and folding units connecting between the wireless charging units, the folding units each having a void therein, which passes through both lateral surfaces thereof, and thereby to be folded up or down. | 2016-03-10 |
20160072341 | POWER CONVERSION SYSTEM AND CONNECTOR - A power conversion system includes a power conversion device, a connector, and a processing module. The power conversion device is connected to a power system. The attached state and the unattached state of the connector relative to a connecting port that is provided in an apparatus having a battery mounted therein can be selected. The processing module is configured to determine that a malfunction has occurred when a voltage is applied to a portion that electrically connects the connector and the connecting port in a period in which transmission of electric power with respect to the battery is stopped. | 2016-03-10 |
20160072342 | Systems and Methods for Constructing Laminations for Electric Motors - Systems and methods for the construction of components such as laminations for the stator core of an ESP motor wherein particles of different materials are mixed and pressed together at an elevated temperature to form a composite material in the desired lamination shape. The materials are selected to provide characteristics such as high magnetic permeability from one material and high thermal conductivity from the other material. The particles of the different materials are pressed together at a temperature that is sufficiently high to fuse the particles together and form a composite material, but is also sufficiently low that the materials are not sintered. The individual materials therefore retain their original characteristics, and the composite material benefits from the high magnetic permeability of the first material and the high thermal conductivity of the other material. | 2016-03-10 |
20160072343 | AXIAL FLUX MACHINE HAVING A LIGHTWEIGHT DESIGN - An electrical axial flux machine including a rotor shaft is provided. The rotor shaft is rotatable about an axis of rotation. Two rotors are arranged on the rotor shaft. The two rotors are spaced apart when viewed in aa direction of the axis of rotation. The axial flux machine further includes a stator arranged between the two rotors when viewed in the direction of the axis of rotation. The stator includes stator teeth. Each of the stator tooth extends in the direction of the axis of rotation between two end regions. The stator teeth are arranged and distributed uniformly around the axis of rotation at a radial spacing from the axis of rotation and include a stator winding system. At least one ring structure is provided connecting the two end regions of the stator teeth. A housing further surrounds the stator radially on the outside. | 2016-03-10 |
20160072344 | HIGH-SPEED ELECTRIC MOTOR - This electric motor comprises a stator ( | 2016-03-10 |
20160072345 | DC MOTOR - A DC motor includes a core, two bifurcated branching portions, an inner coil, and an outer coil. The core includes teeth. Each tooth includes a distal end and a basal end. The branching portions are located at the distal end. The inner coil is wound around the basal end. The outer coil is wound around each of the branching portions of the tooth and a branching portion of an adjacent one of the teeth. The inner coil and the outer coil each have a number of turns that is adjusted so that an inductance of the inner coil conforms to an inductance of the outer coil. | 2016-03-10 |
20160072346 | ROTOR FOR AN ELECTRIC MACHINE - A rotor for an electric machine is mounted for rotation about an axis and includes a plurality of permanent magnets placed on a radial outer surface of the rotor for forming at least one magnetic pole pair. An anisotropically-soft sintered magnetic material having an easy direction and a hard direction is located in at least one section of the rotor radially further inward than the plurality of permanent magnets. | 2016-03-10 |
20160072347 | Permanent Magnet Electric Motor - In a permanent magnet electric motor, a plurality of projections are formed at least partially along an axial direction in the magnet insertion openings, the projection positioning both edges of the permanent magnet in the circumferential direction so that vacant spaces are defined at each sides of the permanent magnet in the circumferential direction; a plurality of slits arranged along the circumferential direction are provided in regions, the region being positioned radially outward from the permanent magnet and being sandwiched at the edges of the permanent magnet in the circumferential direction by the projections; and the shortest distance between the slit and the magnet insertion opening is set to be greater than the shortest distance between the slit and an outer circumferential surface of the rotor core. | 2016-03-10 |
20160072348 | PERMANENT MAGNET EMBEDDED-TYPE ROTATING ELECTRIC MACHINE AND MANUFACTURING METHOD THEREOF - Cracking and flying around of permanent magnets in a permanent magnet embedded-type rotating electric machine is prevented. Thermally hardening FRP is used as a reinforcement sheet, and the reinforcement sheet is wrapped around the periphery of a permanent magnet and caused to adhere to the surface of the permanent magnet by being thermally hardened. Subsequently, the permanent magnet to which the reinforcement sheet is adhering is embedded in magnet embedding holes of the rotor. The surface of the reinforcement sheet after thermal hardening is in a state of not being attached to the inner wall surface of the magnet embedding holes. Consequently, no stress caused by the difference between the linear expansion coefficients of the rotor and permanent magnets acts on the permanent magnets when the temperature of the rotor rises, and cracking of the permanent magnets can thus be prevented. | 2016-03-10 |
20160072349 | ROTOR FOR AN ELECTRIC MACHINE - A rotor for an electric machine, comprising a modular design consisting of a plurality of modular elements is disclosed. These modules are arranged adjacent to each other in a direction of movement of the rotor. Each modular element has at least one magnet and at least one ferromagnetic pole shoe, and the poles of the magnet are aligned in the direction of movement of the rotor. An electric machine comprising a stator and a rotor according to the invention is also disclosed. | 2016-03-10 |
20160072350 | TERMINAL UNIT OF VEHICLE TRACTION MOTOR AND METHOD OF MANUFACTURING THE SAME - A terminal unit of a vehicle traction motor includes a terminal mold, bus bars which are assembled and fixed in within the terminal mold, and insulation spacers which are alternately and sequentially inserted and assembled between the bus bars and have different diameters from each other. | 2016-03-10 |
20160072351 | STATOR OF ROTARY ELECTRIC MACHINE - First convexities and second convexities are formed in opposing first wall surfaces and second wall surfaces of lead wire end portion holding grooves, and in holding coil ends that are housed in the lead wire end portion holding grooves with the first convexities and the second convexities, the first convexities and the second convexities are formed at positions that are offset with respect to each other in a circumferential direction and one end portions of the coil ends of the same phase that are connection portions are drawn out towards an outer diameter side from between the first convexities and the second convexities. | 2016-03-10 |
20160072352 | ARMATURE OF ROTATING ELECTRIC MACHINE WITH IMPROVED WEDGES - The present disclosure provides an armature of a rotating electric machine. The armature of the rotating electric machine includes a wedge that is configured to close an opening of a slot around which coils are wound and support the coils disposed to a left side and a right side of the slot to prevent the coils from seceding from a core. The wedge includes a main plate that has a substantially V-shaped section. In addition, a support plate of the wedge is coupled with the main plate within the main plate and is configured to support the main plate in directions in which the main plate spreads to maintain a shape of the main plate. | 2016-03-10 |
20160072353 | Electric Generator - A simpler to manufacture electrical machine generator or motor designed to be built of 2 dimensionally cut flat stock materials with special utility as a larger than conventional diameter electric generator that is designed to operate at lower revolutions per minute than conventional generators so as to be able to be driven by human legs or arms or wind generation at low wind speeds, or water movement at low or zero water drop distance or ‘head’ or other applications. | 2016-03-10 |
20160072354 | ELECTRICAL MACHINE HAVING A HOUSING OVER A PARTIAL CIRCUMFERENCE - An electric machine has a stator and a rotor. The rotor is arranged on a rotor shaft that can be rotated about an axis of rotation. The stator surrounds the rotor radially on the outside with respect to the axis of rotation. The stator is surrounded radially on the outside by a one-piece housing with respect to the axis of rotation. As viewed around the axis of rotation, the housing extends only over a partial angular range. As viewed around the axis of rotation, a remaining angular range, in which the stator is not surrounded by the housing, thus remains. In end regions located at the ends of the partial angular range, the housing has housing-side form-closure elements, which cause a form closure of the housing with the stator in interaction with stator-side form-closure elements. | 2016-03-10 |
20160072355 | FAN MOTOR - A fan motor that including: a rotor coupled with a shaft to rotate together; a stator installed at a position facing the rotor; a first bracket on a central upper portion of which a first bearing insertion space into which a first bearing coupled to an upper portion of the shaft is inserted is formed; a second bracket which is hermetically coupled to the first bracket and on a central lower portion of which a second bearing insertion space into which a second bearing coupled to a lower portion of the shaft is inserted is formed; a first bearing cover that covers the first bearing insertion space; and a second bearing cover that covers the second bearing insertion space and has an accommodation space formed to extend to the central lower portion. | 2016-03-10 |
20160072356 | ELECTRIC MOTOR - An electric motor for a blower and the like has a commutator and a brush assembly for making electrical contact with the commutator. The brush assembly includes a brush holder and a brush slidably mounted to the brush holder. The brush holder includes a brush holder plate and a side portion extending from the brush holder plate. The brush is arc-shaped and includes a first surface contacting the brush holder plate and a second surface contacting the side portion of the brush holder. The side portion of the brush holder has a number of ribs contacting the second surface of the brush. | 2016-03-10 |
20160072357 | FAN MOTOR - Provided is a fan motor that includes: a rotor that is coupled with a shaft to rotate together; a stator that is installed at a position facing the rotor; a first bracket on a central upper portion of which a first bearing insertion space into which a first bearing coupled to an upper portion of the shaft is inserted is formed; a second bracket which is hermetically coupled to the first bracket and on a central lower portion of which a second bearing insertion space into which a second bearing coupled to a lower portion of the shaft is inserted is formed; a first bearing cover that covers the first bearing insertion space; and a second bearing cover that covers the second bearing insertion space and has an accommodation space formed to extend to the central lower portion. | 2016-03-10 |
20160072358 | ENERGY STORE AND DEVICE FOR AN UNINTERRUPTED SUPPLY OF ENERGY - A device for an uninterrupted supply of energy and an energy store for kinetic energy include a housing, a shaft which has a non-rotatably connected inner rotor, and an outer rotor, in particular a drum-shaped outer rotor, which surrounds the inner rotor at least in some areas and which is rotatably mounted relative to the shaft, the inner and/or outer rotor having at least one electric coil. The outer rotor, which is rotatably supported on the housing in a mechanical manner on both sides, is held without mechanical support towards the shaft. | 2016-03-10 |
20160072359 | ELECTRICAL MACHINE AND CONTROLLER AND METHODS OF ASSEMBLING THE SAME - A fluid circulating assembly includes an electrical machine having a rotor assembly, a stator assembly, and a housing. The housing includes an annular center section and at least two extension portions extending radially outward from the annular center section of the housing. The fluid circulating assembly also includes a controller assembly coupled to the housing. The said controller assembly is positioned radially outward from the stator assembly and located in at least one of the at least two extension portions. | 2016-03-10 |
20160072360 | MOTOR HAVING A BRAKING FUNCTION AND USED IN LINEAR ACTUATOR - A motor, which has a braking function and is used in a linear actuator includes a main body, a rotation shaft, a braking means and a stopping means. The rotation shaft penetrates the center of the main body. The braking means includes a braking ring and a helical ring. The braking ring includes a plurality of curved plates. The helical ring surrounds outer edges of the curved plates. Each curved plate is put on the outer periphery of the rotation shaft. The stopping means is disposed between the main body and the braking means for restricting the rotation of any of the curved plates. By this arrangement, a better braking and decelerating function can be achieved. | 2016-03-10 |
20160072361 | VEHICLE DRIVE DEVICE - A vehicle drive device that includes a rotary electric machine; a transmission device that is disposed side by side with the rotary electric machine in an axial direction thereof; a differential gear device that has a rotation-axial center substantially parallel to that of the transmission device, and is disposed on an axis other than that of the transmission device; and an inverter device that includes a capacitor that smooths direct-current power and a conversion unit that performs direct current/alternating current conversion, and controls the rotary electric machine. | 2016-03-10 |
20160072362 | Hybrid Axial Flux Machines and Mechanisms - an axial flux electric motor having one or more permanent magnets ( | 2016-03-10 |
20160072363 | CONTROL SYSTEM FOR HYDRAULICALLY POWERED AC GENERATOR - Systems and methods for use in controlling a hydraulically powered AC generator are provided. One control system includes a valve system. The valve system includes a fixed valve configured to provide a substantially constant flow rate of the fluid through the fixed valve to the hydraulically powered AC generator. The valve system further includes a variable valve configured to provide a variable flow rate of the fluid through the variable valve to the hydraulically powered AC generator. The control system further includes a sensor device configured to measure a speed of movement of a component of the hydraulically powered AC generator. The control system further includes a control circuit configured to control the variable flow rate of the variable valve based on the speed of movement of the component measured by the sensor device. | 2016-03-10 |
20160072364 | Electrical Generator Capable of Indoor Operation - Provided is an electric generator which is capable of being used indoors. The electric generator employs the use of a cooling system which injects water directly into the engine through a domestic water pipe. The cooling system does not require the use of a water pump, radiator, cooling fans, alternator or any associated belts. The electric generator also employs the use of an exhaust system which allows for the passage of cooled exhaust gases and water from the engine in a safe manner without having exhaust fumes enter the home and without posing a fire hazard to the home or building structure. Further advantages of the indoor electric generator are discussed herein. | 2016-03-10 |
20160072365 | Communication Device - A communication device proposed by the invention comprises, in a modularly assembled design, a first module for generating a mechanical rotary motion, the rotational energy of which is converted into electrical energy by a second module, namely a converter module. A third module is a transmitter module which is supplied with and driven by energy from the converter module. | 2016-03-10 |
20160072366 | DRIVE APPARATUS AND ROBOT DEVICE - A drive apparatus includes a motor having a drive part that rotates a first shaft member; a transmission part that transmits rotation of the first shaft member to a second shaft member which is different from the first shaft member; a first detection device provided at the first shaft member to detect information regarding rotation of the drive part; a second detection device provided at the second shaft member to detect information regarding rotation of the transmission part; and a prevention part that prevents movement of foreign substance toward a detection part which includes at least one of the first detection device and the second detection device. | 2016-03-10 |
20160072367 | Position Detection Device, Position Detection Method, and Moving Body System - A moving body includes a first position detector configured to detect a position of the moving body by detecting poles of magnets and a second position detector disposed in a different position from a position of the first position detector in a moving direction of the moving body, and configured to detect the position of the moving body. A controller of the moving body determines the position of the moving body on a basis of a position detected by the second position detector when the first position detector is located in an irregular section in which the poles of the magnets are not disposed regularly. | 2016-03-10 |
20160072368 | MOTOR APPARATUS - Each cross-section of the connector member assembling hole and the assembly main body | 2016-03-10 |
20160072369 | ROTATING ELECTRICAL MACHINE - A rotating shaft is attached rotatably to a front body and a rear body of an AC generator. Feeding brushes are disposed around a rear end portion of the rotating shaft. A heat radiating plate is attached to a rear end of the rear body. A control board is attached to a back of the heat radiating plate. External air flows in from an air inlet and advances in a radially inward direction after passing through a cooling fin disposed on the heat radiating plate by a first air flow passage. In addition, the external air passes through and around the rear end portion of the rotating shaft after flowing into a rear surface side of the heat radiating plate via a second air passage. | 2016-03-10 |
20160072370 | Magnet Inserting Apparatus for Magnet Insertion into Magnet Insertion Slots of Rotor Core and Method Thereof - A magnet inserting apparatus inserts a plurality of magnet parts into each of the magnet insertion slots provided in the rotor core of a motor. The magnet inserting apparatus comprises a guiding unit equipped with a magnet inlet and a magnet outlet and is configured to align the plurality of magnet parts inserted through the magnet inlet until the inserted magnet parts are ejected from the magnet outlet, and to guide the aligned magnet parts so as to be inserted from the magnet outlet to the magnet insertion slot. A size of the magnet inlet of the guiding unit is larger than a size of the magnet insertion slot, a size of the magnet outlet is the same as or smaller than the size of the magnet insertion slot, and the guiding unit is formed so that a shape from the magnet inlet to the outlet becomes a taper shape. | 2016-03-10 |
20160072371 | INNER ROTOR-TYPE PERMANENT MAGNET MOTOR WITH ANNULAR MAGNETIC POLES - A motor includes poles P having a remanence Mr of 0.9 T or more, a coercivity HcJ of 0.80 MA/m or more, and a maximum energy product (BH) | 2016-03-10 |
20160072372 | LATCHING SECTOR MOTOR ACTUATOR AND FOR A FAILSAFE SECTOR MOTOR ACTUATOR HAVING AN AVAILABLE OPERATING RANGE NOT LIMITED TO 90 DEGREES - In one embodiment, a latching sector motor actuator includes a housing, a permanent magnet, and a pole piece. The permanent magnet rotates relative to the housing. The pole piece has a polarity and a pair of wound wire coils, is fixedly attached to the housing, and communicates with the permanent magnet to cause the permanent magnet to rotate one of clockwise and counterclockwise, depending upon the polarity of the pole piece. In another embodiment, a failsafe sector motor actuator has a pole piece with a singularly wound wire coil and further includes an auxiliary permanent magnet. The auxiliary permanent magnet is adjustably attached to the housing to extend rotation of the permanent magnet from 80° to 120°, depending upon location and magnitude of the auxiliary permanent magnet. | 2016-03-10 |
20160072373 | SELF-POWERED ALTERNATIVE ENERGY MACHINE TO GENERATE ELECTRICITY - An alternative energy generating apparatus is provided. The apparatus comprises a stationary metal coil or coils positioned by, above, below, or beside a magnet or a rotor of magnets with one or more imbedded magnets (e.g., rare earth magnets). Magnets may be imbedded along an outer part of a disc-like rotor. The one or more coils may be held in a coil plate apparatus, essentially parallel to the magnet rotor. The provided apparatus further comprises a shaft having a gear ratio for turning the rotor of magnets, such as by hand or by a motor in order to achieve a high turning velocity. The magnets generate an electromagnetic field, which when rotated against the stationary metal coils, produce an electric current. | 2016-03-10 |
20160072374 | Low-carbon economical electromagnetic fan cluth - A low-carbon economical electromagnetic fan clutch includes a spindle and a fan fixing disc, wherein the low-carbon economical electromagnetic fan clutch further includes an eddy current disc. The fan fixing disc and the eddy current disc are sequentially arranged at a left end of the spindle along an axial direction from left to right; one or multiple groups of permanent magnets are arranged on the fan fixing disc around the spindle, and a conductive non-magnetic-conductive material is fixed at a corresponding position of the eddy current disc; the fan fixing disc is rotationally connected with the spindle through a first bearing, and the eddy current disc is rotationally connected with the spindle through a second bearing. In the low-carbon economical electromagnetic fan clutch, an electromagnetic eddy current high heat accumulation area is effectively separated from the fan fixing disc rotating at a high speed. | 2016-03-10 |
20160072375 | SYSTEM AND METHOD FOR SERIES CONNECTING ELECTRONIC POWER DEVICES - A system and method for series connecting electronic power devices are disclosed. In one embodiment, a switching device system includes a first upper arm electrically coupled to a first lower arm and a second upper arm electrically coupled to a second lower arm. Each of the arms include a plurality of low voltage sub-modules connected in series and each plurality of low voltage sub-modules includes an auxiliary switching device, a series switching device, and a capacitor. Each plurality of low voltage sub-modules is configured to be sequentially switched using the auxiliary switching device and the series switching device separately in the upper arms and the respective lower arms to control change in voltage over time (dV/dt) while selectively blocking a desired high voltage. Further, a capacitor voltage balancing (sorting or rotating) algorithm may be used to actively balance voltage across each plurality of low voltage sub-modules. | 2016-03-10 |
20160072376 | Rectifying Devices and Rectifier Arrangements - A rectifying device includes a power transistor, a gate control circuit and a capacitor structure arranged on a single semiconductor die. The power transistor includes a source or emitter terminal connected to a first terminal of the rectifying device, a drain or collector terminal connected to a second terminal of the rectifying device, and a gate. The gate control circuit is operable to control a gate voltage at the gate of the power transistor based on at least one parameter relating to at least one of a voltage and a current between the first terminal and the second terminal. | 2016-03-10 |
20160072377 | POWER SUPPLY AND APPARATUS INCLUDING THE SAME - A power supply may include a control signal generating unit outputting a control signal in response to a load information signal input thereto, a controlling unit activating and outputting a first gate signal or activating and outputting first and second gate signals in response to the control signal, a first power factor correction unit operating in response to the first gate signal, and a second power factor correction unit operating in response to the second gate signal. | 2016-03-10 |
20160072378 | ACTIVE POWER FACTOR CORRECTION CONTROL CIRCUIT, CHIP AND LED DRIVING CIRCUIT THEREOF - In one embodiment, an active power factor correction (APFC) control circuit, configured to generate a pulse-width modulation (PWM) control signal to control the operation of a power converter, can include: (i) an inductor current zero crossing detection circuit coupled to a common node between a power switch of the power converter and a first switch that are coupled in series, where the inductor current zero crossing detection circuit is configured to generate a comparison signal based on a voltage signal at the common node; (ii) the comparison signal being activated when an inductor current of the power converter decreases to zero; and (iii) the APFC control circuit being configured as a source driver, wherein a control terminal of the power switch is coupled to a constant voltage supply. | 2016-03-10 |
20160072379 | POWER SUPPLY DEVICE - A DC power supply circuit outputs an output voltage, which varies with an input voltage. The output voltage therefore occasionally deviates from a normal output voltage range although the DC power supply circuit is normal. However, the DC power supply circuit converts the input voltage in a predetermined relation between the input voltage and the output voltage. When the output voltage of the DC power supply circuit deviates from a predetermined normal output voltage range, a determination circuit determines that the DC power supply circuit is abnormal when the input voltage and the output voltage of the DC power supply circuit are not in the predetermined relation. It is thus prevented that the DC power supply circuit is erroneously determined to be abnormal although operating normally. As a result, it is possible to eliminate erroneous determination in determining the operation state itself. | 2016-03-10 |
20160072380 | CHARGE PUMP POWER SUPPLY WITH OUTPUT VOLTAGE SENSING USING RESIDUAL CHARGE ON A FLYING CAPACITOR - A regulated charge pump power supply is implemented with a QP regulation loop providing QP clocking to control pumping operation based on sensing output voltage using residual charge on a flying capacitor Cfly. Cfly is used not only in normal charge pumping operation as an active charge shuttle element, but also to determine/measure output voltage VOUT. Voltage sensing using measured residual charge on Cfly is accomplished by introducing a sample phase into the normal charge pumping operation—after the pump phase and before the charge phase. In the sample phase, VOUT is determined (sampled) based on the residual charge on Cfly corresponding to (Vsense=VOUT−VIN). During the sample phase, the Cfly bottom plate is connected to ground, and the Cfly top plate is sampled (such as with a sense capacitor), with the sample phase completed prior to initiating a charge phase (by connecting the Cfly top plate to VIN). | 2016-03-10 |
20160072381 | ANALOG TIMER CIRCUIT WITH TIME CONSTANT MULTIPLICATION EFFECT - An analog timer circuit comprises a pulse source, a charge storage element, and a charge pump coupled between the pulse source and the charge storage element. A pulse signal generated by the pulse source is utilized to charge the charge storage element via the charge pump. The analog timer may further comprise a discharge pump coupled between the pulse source and the charge storage element. The pulse signal generated by the pulse source is also utilized to discharge the charge storage element via the discharge pump. For example, the charge pump and the discharge pump may be driven by respective ones of complemented and uncomplemented versions of the pulse signal generated by the pulse source. An up/down driver circuit is configured to select between charging of the charge storage element via the charge pump and discharging of the charge storage element via the discharge pump. | 2016-03-10 |
20160072382 | CONTROLLING A POWER SUPPLY VOLTAGE FOR A HIGH-SIDE GATE DRIVER - This disclosure describes techniques for controlling a power supply voltage for a high-side gate driver that is used in a power converter. In some examples, in response to an overvoltage condition that occurs on an input voltage lead of a power converter, a power converter may decouple a terminal of a charge pump capacitor from the input voltage lead, and couple the terminal of the capacitor to a reference voltage lead. In further examples, in response to an overvoltage condition that occurs on an input voltage lead of a power converter, a power converter may turn off both switching transistors. | 2016-03-10 |
20160072383 | System and Method for a Controlled Feedback Charge Pump - According to various embodiments, a circuit includes a charge pump and a feedback circuit. The charge pump includes a first input, a second input configured to receive an offset signal, and an output terminal configured to provide a charge pump signal based on the first and second inputs. The feedback circuit includes a first input coupled to the output of the charge pump, a second input configured to be coupled to a reference signal, an enable input configured to enable and disable the feedback circuit, and a feedback output coupled to the first input of the charge pump. | 2016-03-10 |
20160072384 | HYSTERETIC CONTROL DC/DC CONVERTER SWITCHING FREQUENCY WITH REDUCED DEPENDENCE ON VOLTAGE AND CURRENT - In a hysteretic control DC/DC converter apparatus having a coupling circuit that couples a voltage input to a voltage output, a control signal is generated based on a node voltage at a node in the coupling circuit. The node is alternately connected to a fixed potential and disconnected from the fixed potential in accordance with a frequency of the control signal. | 2016-03-10 |
20160072385 | FEEDFORWARD LOOP TO STABILIZE CURRENT-MODE SWITCHING CONVERTERS - A circuit includes a current sensor to sense a switching current flowing at input side of a switching DC-DC converter. An output capacitor filters an output voltage at an output side of the switching DC-DC converter. A feed-forward circuit passes a portion of the sensed switching current to a feedback path on the output side of the switching DC-DC converter simulating a changing effective series resistance (ESR) of the output capacitor to facilitate operating stability in the switching DC-DC converter. | 2016-03-10 |
20160072386 | SWITCHING POWER SUPPLY - According to one embodiment, a first transistor is a high-side switching transistor. A second transistor is a low-side switching transistor. A third transistor has one end that is connected the other end of the first transistor and a control terminal that is connected to the ground potential, and is a normally-on type transistor. A diode has a cathode that is connected to the other end of the third transistor and an anode that is connected to the ground potential. | 2016-03-10 |
20160072387 | DC/DC CONVERTER - For a DC/DC converter with high dynamics and for high-voltage conditions, a provision is made that a capacitor series connection ( | 2016-03-10 |
20160072388 | METHOD AND DEVICE FOR CONTROLLING A MULTIPHASE RESONANT DC/DC CONVERTER, AND CORRESPONDING MULTIPHASE CONVERTER - The control method according to the invention concerns a multiphase resonant DC/DC converter comprising a plurality of identical elementary DC/DC converters connected in parallel. Supply currents (IR1, IR2, . . . IRn) are measured in the elementary DC/DC converters in order to balance these same currents. According to the method, switching frequencies of the elementary DC/DC converters are controlled on the basis of the supply currents in such a way as to achieve the balance. Another feature involves setting the supply currents to a common reference intensity (Iref) determined on the basis of a difference between an output voltage (Vo) of the multiphase converter and a nominal voltage (Vref). | 2016-03-10 |
20160072389 | MULTIPLE-PHASE POWER CIRCUIT - A multiple-phase power circuit includes multiple voltage conversion units, a pulse-width modulation (PWM) signal generator and a surge detection circuit. Each voltage conversion unit converts an input voltage to a driving voltage of a pre-set phase. The pulse-width modulation (PWM) signal generator is coupled to the voltage conversion units to output PWM signals of different phases to the voltage conversion units. The surge detection circuit samples the input voltage and compares the input voltage with a reference voltage. Then the surge detection circuit outputs multiple first control signals. The PWM signal generator further stops outputting the PWM signals of different phases when the PWM signal generator receives the multiple first control signals. | 2016-03-10 |
20160072390 | BIDIRECTIONAL DC/DC CONVERTER - During a dead time, a resonance current generated by a load current that flows in a resonance inductor and a resonance current generated by an excitation current of a transformer flow in a resonance circuit constituted by the resonance inductor and capacitors that exist in parallel to respective switching elements. A controller performs a turning off operation on the switching elements at a timing that the resonance current generated by the load current and the resonance current generated by the excitation current are cancelled each other during the dead time. | 2016-03-10 |
20160072391 | SWITCHING POWER SUPPLY DEVICE - A switching power supply device includes a switching control circuit that generates a switching control signal such that a desired output voltage is generated from an input voltage, a drive circuit that turns on/off an output transistor in accordance with the switching control signal, and an on-pulse stop circuit that generates a pulse stop signal such that the number of ON pulses of the switching control signal is reduced in a state where a load is heavier than a first threshold but is lighter than a second threshold. | 2016-03-10 |
20160072392 | Power Supplies - Circuits and techniques for improving power converter efficiencies and controllability are disclosed. For example, a first converter stage includes a push-pull circuit topology and an isolating element including a magnetizing inductance for isolating a primary side of the first converter stage from a secondary side of the first converter stage. The magnetizing inductance may vary as a function of a current flowing in the primary side of the first converter stage. For example, the isolating element can be a transformer with a stepped gap core and have a varying magnetizing inductance profile. | 2016-03-10 |
20160072393 | BIDIRECTIONAL CURRENT-SENSE CIRCUIT - A bi-directional voltage converter with a current-sensing circuit includes a first sub-circuit including a high-voltage terminal, a first switching device, and a first primary winding of a first transformer; a second sub-circuit including a second switching device, a second primary winding of a second transformer, and ground; a low-voltage terminal connected, via an inductor, to a point between the first the second sub-circuits; a third switching device connected to a first secondary winding of the first transformer; a fourth switching device connected to a second secondary winding of the second transformer; and a control circuit configured to control the switching devices. The third and fourth switching devices are included in the current-sensing circuit and are connected to a current-sense terminal, and the current-sensing circuit generates a voltage waveform at the current-sense terminal representing a current flowing through at least one of the first and the second switching devices. | 2016-03-10 |
20160072394 | MULTI-CELL POWER CONVERSION METHOD AND MULTI-CELL POWER CONVERTER - A method includes converting power by a power converter comprising a plurality of converter cells, and selectively operating at least one converter cell of the plurality of converter cells in one of an active and an inactive mode based on a level of a power reference signal. | 2016-03-10 |
20160072395 | MULTI-CELL POWER CONVERSION METHOD AND MULTI-CELL POWER CONVERTER - A power converter circuit includes a plurality of converter cells. At least a first converter cell of the plurality of converter cells has a first operational characteristic. At least a second converter cell of the plurality of converter cells has a second operational characteristic different than the first operational characteristic. | 2016-03-10 |
20160072396 | MULTI-CELL POWER CONVERSION METHOD AND MULTI-CELL POWER CONVERTER - A method includes receiving a periodic voltage by a power converter comprising a plurality of converter cells and, in a series of time frames of equal duration, alternating an average power level of power converted by at least one converter cell of the plurality of converter cells. Each of the series of time frames corresponds to a time period between sequential zero crossings of the periodic voltage. | 2016-03-10 |
20160072397 | MULTI-CELL POWER CONVERSION METHOD AND MULTI-CELL POWER CONVERTER - A method includes converting power by a power converter comprising a plurality of converter cells and at least one filter cell, receiving a cell input power at a cell input and providing a cell output power at a cell output of at least one of the plurality of converter cells, and operating the filter cell in one of an input power mod, in which the filter cell receives an input power, and an output power mode, in which the filter cell provides an output power. | 2016-03-10 |
20160072398 | MULTI-CELL POWER CONVERSION METHOD AND MULTI-CELL POWER CONVERTER - A power converter circuit includes a power converter with a plurality of series connected converter cells. Each of the plurality of converter cells includes at least one first half-bridge circuit including a first silicon MOSFET (Metal Oxide Semiconductor Field-Effect Transistor) and a second silicon MOSFET. At least one of the plurality of converter cells is configured to operate in a continuous current mode. | 2016-03-10 |
20160072399 | INSULATION-TYPE SYNCHRONOUS DC/DC CONVERTER - The synchronous rectifier controller is provided at the secondary side of the insulation-type synchronous DC/DC converter and controls the synchronous rectifier transistor. The controller is coupled to the output of the feedback photo coupler and drives the switching transistor according to the feedback signal. The synchronous rectifier controller includes a driver circuit and an abnormal detection circuit and is configured as a single module. The driver circuit drives the synchronous rectifier transistor. The abnormal detection circuit detects an abnormal condition in the secondary side of the DC/DC converter. FAIL terminal is coupled to notify outside of an occurrence of the abnormal condition. | 2016-03-10 |
20160072400 | Universal Power Conversion Methods - Methods and systems for transforming electric power between two or more portals. Any or all portals can be DC, single phase AC, or multi-phase AC. Conversion is accomplished by a plurality of bi-directional conducting and blocking semiconductor switches which alternately connect an inductor and parallel capacitor between said portals, such that energy is transferred into the inductor from one or more input portals and/or phases, then the energy is transferred out of the inductor to one or more output portals and/or phases, with said parallel capacitor facilitating “soft” turn-off, and with any excess inductor energy being returned back to the input. Soft turn-on and reverse recovery is also facilitated. Said bi-directional switches allow for two power transfers per inductor/capacitor cycle, thereby maximizing inductor/capacitor utilization as well as providing for optimum converter operation with high input/output voltage ratios. Control means coordinate the switches to accomplish the desired power transfers. | 2016-03-10 |
20160072401 | POWER CONVERSION DEVICE - A power conversion device implementing an electrical-path-cutoff only if a power semiconductor element short-circuits, and to implement the cutoff at a timing earlier than when a battery fuse fuses, includes a pair of power semiconductor elements configured to be an upper arm element and a lower arm element, being connected in series between a positive-polarity electrode and a negative-polarity electrode; a short circuit detection circuit configured to detect a short circuit in the lower arm element; switching element for fusing, configured to be disposed between positive-polarity-side terminal of upper arm element on the positive-polarity electrode side, and negative-polarity-side terminal of lower arm element on the negative-polarity electrode side, and to be driven to have the positive-polarity-side terminal connected with the negative-polarity electrode when the short circuit is detected; and a cutoff part configured to be made of thin metallic wire for having the negative-polarity-side terminal connected with the negative-polarity electrode. | 2016-03-10 |
20160072402 | RECTIFYING CIRCUIT AND CONTACTLESS IC CARD - The rectifying circuit includes a first and a second transistor, a first and a second rectifying element, a first and a second switch element. A current path of the first transistor is connected between a reference potential and a first antenna terminal. A current path of the second transistor is connected between the reference potential and a second antenna terminal. The first rectifying element is connected between the first antenna terminal and a rectified current output node, a forward direction is from the first antenna terminal to the rectified current output node. The second rectifying element is connected between the second antenna terminal and the rectified current output node, a forward direction is from the second antenna terminal to the rectified current output node. The first switch element is connected in parallel with the first transistor. The second switch element is connected in parallel with the second transistor. | 2016-03-10 |
20160072403 | PWM RECTIFIER INCLUDING CAPACITANCE CALCULATION UNIT - A PWM rectifier includes a main circuit unit carrying out AC-DC power conversion by PWM-control, a PWM control unit PWM-controlling the main circuit unit, a DC voltage detection unit detecting a DC voltage across a smoothing capacitor connected to the DC-side of the main circuit unit, a DC voltage storage unit storing respective DC voltages at the start and end times of an initial boost period during which the smoothing capacitor having been charged to an AC voltage peak value is further charged to a higher voltage, an input power calculation unit calculating input power flowing in from the AC-side based on an AC voltage and current, an integral power calculation unit calculating integral power from the input power over the initial boost period, and a capacitance calculation unit calculating the capacitance of the smoothing capacitor based on the respective DC voltages and the integral power. | 2016-03-10 |
20160072404 | SYNCHRONOUS BUCK INVERTER - A power inverter, such as a synchronous buck power inverter, that is configured with a high frequency switching control having a (PWM) controller and sensing circuit. Controller provides a low frequency oscillating wave to effect switching control on a synchronous-buck circuit portion that includes a plurality of switches to invert every half cycle of the frequency provided by controller. The inverting process thus creates a positive and negative transition of the oscillating wave signal. A low frequency switching stage includes a further plurality of switches configured to operate as zero voltage switching (ZVS) and zero current switching (ZCS) drives Charge on an output capacitor is discharged to zero on every zero crossing of low frequency switching stage and advantageously discharges energy every half cycle. During this discharge of energy, the zero crossing distortion in the low frequency sine wave is greatly reduced. | 2016-03-10 |
20160072405 | GATE DRIVING CIRCUIT, SEMICONDUCTOR DEVICE, AND POWER CONVERSION DEVICE - A gate driving circuit of embodiments is provided with a first transistor which controls a gate-on voltage applied to a gate electrode of a switching device, a second transistor which controls a gate-off voltage applied to the gate electrode of the switching device, a driving logic circuit which controls turn-on/turn-off of the first and second transistors, a first power source which supplies the gate-on voltage to the gate electrode when the first transistor is turned on, a second power source which supplies the gate-off voltage to the gate electrode when the second transistor is turned on, a first gate resistance variable circuit in which a plurality of field effect transistors is connected in parallel, a second gate resistance variable circuit in which a plurality of field effect transistors is connected in parallel, and a gate resistance control circuit which controls gate voltages of a plurality of field effect transistors. | 2016-03-10 |
20160072406 | CONTROL METHOD AND CONTROL SYSTEM OF THREE LEVEL INVERTER - A three-phase inverter includes three-level inverters connected in parallel to one another, each being capable of outputting a DC high voltage, DC middle voltage, and DC low voltage. A method for controlling the three-phase inverter produces on-time ratios in one switching period of switching elements in the three-level inverters, so as to make the three-phase inverter for one phase alternately output the DC high voltage and the DC middle voltage, to make the three-phase inverter for another phase output the DC middle voltage, and to make the three-phase inverter for the remaining phase alternately output the DC middle voltage and the DC low voltage. | 2016-03-10 |