32nd week of 2015 patent applcation highlights part 61 |
Patent application number | Title | Published |
20150222114 | METHODS AND SYSTEMS OF IMPEDANCE SOURCE SEMICONDUCTOR DEVICE PROTECTION - An electrical network configured to suppress voltage transients is disclosed. The network includes a capacitor and an electrical impedance in parallel with a diode. The capacitor is in series with the parallel connected diode and electrical impedance, and the electrical network is configured to suppress voltage transients occurring across the series combination of the capacitor and the parallel connected diode and electrical impedance. | 2015-08-06 |
20150222115 | PCU PPFC SURGE LIMITER - The present disclosure is directed to a surge limiting circuit electrically coupleable between a power source and a downstream component. The surge limiting circuit may include a transistor configured to operate in each of a first mode that allows an electric current to flow through the transistor, a second mode that cuts off an electric current from flowing through the transistor, and a third mode that only partially allows an electric current to flow through the transistor while partially cutting off the electric current. The surge limiting circuit may further include a control circuit coupled to the transistor and configured to control operation of the transistor in response to an electrical voltage at the transistor's output. The control circuit may further be configured to repeatedly cycle between controlling operation of the transistor in the first mode and the second mode such that the transistor operates in the third mode. | 2015-08-06 |
20150222116 | CONTROL BOARD FOR CONTROLLING CHANNEL SEQUENCING OF POSITIVE AND NEGATIVE DC VOLTAGE AND CURRENT - A controller board for controlling sequencing of positive and negative DC voltage and current to one or more devices or groups of device to achieve an optimum output from the one or more device or groups of devices using the least amount of energy is provided. The sequencing of signals may be programmed into or uploaded into the controller board for providing the order in which power is provided to the one or more devices or groups of devices. A sequence may be a set of paired outputs (one (+) and one (−)) turned On in the order they have been programmed/entered and at a selected frequency. According to one embodiment, there can be up to 8 steps (1 to 8) in a sequence. | 2015-08-06 |
20150222117 | BATTERY TRAY, BATTERY RACK, ENERGY SYSTEM, AND METHOD OF OPERATING THE BATTERY TRAY - A battery tray, a battery rack, an energy storage system, and a method of operating the battery tray are disclosed. The battery tray includes a pair of terminals including a first tray terminal, a battery including at least one battery cell; and a main switch including a first node electrically connected to the battery and a second node electrically connected to the first tray terminal. A main controller manages the battery and controls the main switch. A driving voltage control unit detects a battery voltage of the first node and terminal voltage of the second node, and controls operation of the main controller based on the battery voltage and the terminal voltage. | 2015-08-06 |
20150222118 | POWER TRANSMISSION AND DISTRIBUTION SYSTEM, CONTROLLER, ROUTER, POWER TRANSMISSION AND DISTRIBUTION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING PROGRAM - A controller has: risk information acquisition means for acquiring risk information on a power transmission and distribution section formed by two power routers being connected to each other; and control instruction means for calculating a risk score of the power transmission and distribution section based on the risk information, deciding a power transmission and distribution route including the one or more power transmission and distribution sections based on the risk score, and transmitting a control instruction based on the power transmission and distribution route to the power router. The power router has: transmitting and receiving means for outputting input electric power to the one or more power transmission and distribution sections; and transmitting and receiving control means for controlling the output of the transmitting and receiving means according to the control instruction. | 2015-08-06 |
20150222119 | SYSTEM AND METHOD FOR REDUCTION OF SIGNAL DISTORTION - A system for suppressing signal harmonic distortion caused by a main signal processing device provides processing for an electrical signal containing sine components of multiple frequencies. A post-processor reduces the amplitude of each frequency, relative to other frequencies, as the frequency increases, thus suppressing harmonics, which have higher frequencies than their respective elementary signals. To compensate for frequency distortion caused by the differential frequency suppression in the post-processing stage, a pre-processor provided upstream of the main signal processing device provides frequency-dependent signal processing having a generally opposite effect to that of the post-processor, increasing the amplitude of each frequency of the signal passing through the pre-processor, relative to other frequencies, as the frequency increases. The resulting output signal thus has substantially the same frequency spectrum as the original signal while distortion-causing harmonics are reduced or eliminated. | 2015-08-06 |
20150222120 | ELECTRICAL HOUSEHOLD APPLIANCE SYSTEM - A control device for an electrical appliance operatively set between an electrical supply line of the electrical appliance and a corresponding alternating current (AC) voltage supply source, the control device having a digital control system that encodes information via controlled interruptions of the AC voltage of supply of the electrical appliance and has a first controllable switch managing in an ON-OFF mode the AC voltage from the supply source to the electrical appliance, wherein the encoding comprises carrying out a coding of information as sequences of interruptions having fixed duration of the AC voltage of supply of the electrical appliance, said interruptions having fixed duration being separated by a corresponding interval having variable duration, wherein the information to be transmitted is associated to the variable duration of the interval and the fixed duration of the interruptions is such as not to perturb operation of the electrical appliance. | 2015-08-06 |
20150222121 | GENERATOR LOAD CONTROL - A power system for an electrical system with highly fluctuating loads is powered by one or more power sources that are slow to react to load changes. The power sources are connected to electrical equipment used on the drill rig which provide active load to the generators. One or more load banks may be positioned to provide passive load to the generators to maintain generally constant generator load, while allowing for instant access to power as active load increases. Generators may be run at 100% capacity, a maximum efficient capacity, or at a high enough level to allow for a sufficiently rapid increase in power output. At least one parameter of a drilling operation may be utilized to anticipate load demand changes. | 2015-08-06 |
20150222122 | METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR ADAPTIVE OUT OF STEP PROTECTION FOR POWER GENERATORS WITH LOAD RESYNCHRONIZATION CAPABILITY - Methods, systems, and computer readable media for adaptive out of step protection for power generators with load resynchronization capability are disclosed. According to one method, when a fault condition occurs in a load being supplied by a power generator, a number of pole slips expected to occur in the generator due to the fault before resynchronization is estimated. It is determined whether the estimated number of pole slips exceeds a threshold. An offline or online status of the generator is controlled based on the determination as to whether the estimated number of pole slips exceeds the threshold. | 2015-08-06 |
20150222123 | SYSTEMS AND METHODS FOR UNDER-FREQUENCY BLACKOUT PROTECTION - Detection of which generators are connected using a common, isolated sub-grid using information from intelligent electronic devices (IEDs) in communication with each generator is disclosed herein. Each IED receives rotor position information from a rotor position detection device of the generator. Each IED may then calculate rotor speed, information of the generator and transmit such information to a central IED. The central IED uses the rotor speed information to determine which generators are connected to a common, isolated sub-grid. The central IED may further use rotor position, rotor speed, and rate-of-change-of-speed information either calculated at the central IED or transmitted from the IEDs. | 2015-08-06 |
20150222124 | METHOD AND UNIT OF POWER HARVESTING - An electrical solution that avoids power-up problems due to excessive power consumption during start-up of for example microcontroller based electronics. According to the invention the power consuming electronics is disconnected from a power supply until all power storage elements of the power supply are charged up to a first predetermined level. The power consuming electronics will also be disconnected when the available energy falls under a second predetermined value. This behaviour is useful when all energy is harvested from a weak energy source and the attached power consuming electronics does not work continuously. | 2015-08-06 |
20150222125 | CONNECTOR WITH LOAD CIRCUIT - An Ethernet port is configured with a load circuit that reduces costs compared to the conventional Bob-Smith load circuit when providing Power Over Ethernet (POE). A first centertap from a first transformer is coupled to a first side of a first capacitor. A second centertap from a second transformer is coupled to a first side of a second capacitor. The second side of the first and second capacitors is coupled to a common node. The common node forms an electrical midpoint between the two centertaps. An avalanche diode can be placed between the two centertaps in parallel with the two series connected capacitors and power can be injected on the two centertaps to provide POE. A single resistor can be used to provide load termination before a safety capacitor. | 2015-08-06 |
20150222126 | EXTERNAL OR INTERNAL RECEIVER FOR SMART MOBILE DEVICES - The present disclosure may provide a receiver configuration and application, which may be used to provide wireless power transmission for smart mobile devices. Specifically, the receiver may include a plurality of antenna elements connected to at least one rectifier and one power converter. Additionally, the antenna elements may be arranged around the internal edge of any suitable smart mobile device, and antenna elements may include an optimal spacing to provide a better reception, efficiency, and performance of wireless power transmission. Moreover, the disclosed receiver may be used as an internal or external hardware in smart mobile devices. | 2015-08-06 |
20150222127 | RESONANT POWER TRANSFER SYSTEMS WITH PROTECTIVE ALGORITHM - Systems for tuning a wireless power transfer system are provided, which may include any number of features. In one embodiment, a TET system includes a receive resonator is adapted to be implanted in a human patient and is configured to receive wireless power from a transmit resonator. The system can include a controller configured to identify if a foreign object is interfering with the transmission of power or generating an induced voltage in the receive resonator. The controller can also be configured to control the transmit resonator to phase match with the foreign object. Methods of use are also provided. | 2015-08-06 |
20150222128 | RESONANT POWER TRANSMISSION COILS AND SYSTEMS - An improved wireless transmission system for transferring power over a distance. The system includes a transmitter generating a magnetic field and a receiver for inducing a voltage in response to the magnetic field. In various respects, the receiver is configured to be implanted in a body. The receiver may include a housing enclosing a receiving coil and associated electronic components, a covering around at least a portion of the housing, and at least two wires wrapped around the housing to form a plurality of turns. The covering may be formed of a ferrite material configured to both magnetically shield a respective portion of the internal volume of the housing and redirect incoming magnetic flux from the transmitter to improve efficiency. Methods of use are also provided. | 2015-08-06 |
20150222129 | Wirelessly Charged Battery System - The disclosure features power transmitting apparatus for wireless power transfer to a receiver that includes a housing having a form factor that corresponds to a container featuring lateral surfaces, a bottom surface, and an opening opposite the bottom surface, a first coil formed by a continuous path of electrically conductive material and featuring a plurality of non-planar loops that conform to a first pair of opposite lateral surfaces and to the bottom surface, and a second coil formed by a continuous path of electrically conductive material and featuring a plurality of non-planar loops that conform to a second pair of opposite lateral surfaces and to the bottom surface. | 2015-08-06 |
20150222130 | WIRELESS POWER RECEIVER DEVICE, WIRELESS POWER TRANSMITTER DEVICE, AND WIRELSS POWER TRANSCEIVER DEVICE - A wireless power receiver device includes a sheet-like electrode sheet section and a power receiver section. The electrode sheet section includes a power receiver side active electrode and a power receiver side passive electrode that are substantially coplanar and formed into sheet-like shapes; lead lines that are coplanar with both the electrodes, extended from the respective electrodes, and formed into sheet-like shapes; and an insulation sheet that covers both the electrodes and both the lead lines from both sides thereof. The power receiver section includes a step-down unit that steps down an alternating-current voltage induced between end portions of the lead lines; a power receiver module that rectifies and smoothes the alternating-current voltage that is stepped down by the step-down unit; and a connector for outputting an output voltage of the power receiver module. | 2015-08-06 |
20150222131 | BATTERY HOLDER, BATTERY RECEIVING CASE, BATTERY PACK, ELECTRICITY ACCUMULATION SYSTEM, ELECTRONIC INSTRUMENT, ELECTRIC VEHICLE, AND ELECTRIC POWER SYSTEM - There is provided a battery holder including: a plurality of battery cell receiving sections for receiving a battery cell. A deformation section elastically deformed depending on transmission of external impact, and a space section for allowing the deformation section to be elastically deformed are formed between a peripheral surface of one battery cell receiving section and a peripheral surface of another battery cell receiving section. | 2015-08-06 |
20150222132 | STORAGE BATTERY MANAGEMENT DEVICE, AND STORAGE BATTERY MANAGEMENT METHOD - A storage battery management device can efficiently charge a group of storage batteries connected in series. A storage battery management device ( | 2015-08-06 |
20150222133 | Charge redistribution method for cell arrays - Cell balancing aims to prolong the battery operating life by equalizing the Electro Motive Force (or Open Circuit Voltage) of the participating cells. Even perfectly balanced cells though will exhibit different output voltages because of differences in their internal impedances. The difference in voltage will depend on the load current frequency and intensity. A method is described for re-distributing charge in such a way so when the worst (from the point of view of voltage spread) possible load conditions occur, cells will have similar outputs and none will cross the under-voltage threshold causing a premature shut down of the battery. | 2015-08-06 |
20150222134 | ELECTRONIC CASSETTE CHARGER - A charger includes a loading chamber into which a battery pack is insertably/removably loaded. An insertion opening into which the battery pack is inserted is formed on an upper surface of the main body. The loading chamber is forwardly inclined to a front surface of the main body, and a bottom surface of the insertion opening is inclined with respect to a horizontal direction so that one end of the front surface side is located at a lower end and the other end of the back surface side is located at an upper end. A connecter for supplying power is disposed at the upper end side of the bottom surface. Even when the dust, rubbish or fluid entered from the insertion opening drops to the bottom surface, it flows down to the lower end side, so that less dirt adheres to the connecter. | 2015-08-06 |
20150222135 | CHARGING CIRCUIT AND ELECTRONIC DEVICE HAVING THE SAME - A charging circuit for charging a battery of an electronic device includes a first switch having one side connected to an interface into which external power is input, a second switch having one side connected to the other side of the first switch, a third switch having one side connected to the other side of the second switch, a fourth switch having one side connected to the other side of the third switch, a flying capacitor located between the other side of the first switch and the other side of the third switch, an inductor having one side connected to the other side of the second switch, and a control circuit for controlling a charging function of the battery by controlling on/off of the first switch, the second switch, the third switch and the fourth switch. | 2015-08-06 |
20150222136 | ELECTRONIC DEVICE, AND METHOD CONTROLLING ELECTRONIC POWER SUPPLY - An electric device including: a connecting unit connected to a connection line supplying an electric power of a predetermined rating and transmitting and receiving an information; a charging unit conducting a charging of a charging battery connected to an own device, by the electric power supplied by the connection line; an electric supplying unit supplying an electric power to a recording medium storing an information; a reading-and-writing unit performing a reading-and-writing operation of the recording medium; and an electronic source controlling unit performing a control of the electric power supplied to the charging unit, when the reading-and-writing unit performs the reading-and-writing operation of the recording medium, according to an access request to the recording medium via the connection line. | 2015-08-06 |
20150222137 | CONTROL METHOD FOR ACHIEVING POWER TRANSFER BETWEEN STACKED RECHARGEABLE BATTERY CELLS AND POWER TRANSFER CIRCUIT THEREOF - A control method for achieving power transfer between stacked rechargeable battery cells and a power transfer circuit are disclosed. The power transfer circuit includes an inductor, a first switch, a second switch and a controller. A loop of the rechargeable battery cell having higher power and the inductor is conducted so that the inductor stores power until the current flowing through the inductor meets the cutoff amount. Then, a loop of the rechargeable battery cell having lower power and the inductor is conducted so that the inductor releases the power saved in the inductor to the rechargeable battery cell having lower power until current flowing through the inductor changes direction. Therefore, balance between the rechargeable battery cells can be achieved. | 2015-08-06 |
20150222138 | WIRELESS CHARGING SYSTEM FOR MULTI-MODE DEVICE - A wireless charging system may provide charging to a multi-display device. A docking station in the system may include at least two transmission sources positioned so that a charger on the device may be in range of at least one of the transmission sources when docked. In some embodiments, the docking station may receive the device in a non-planar configuration and the charger may receive charge on whichever side of the docking station it is docked on. In some embodiments, the system may determine which side of the docking station is activated to provide charging. The multi-display device may be activated in a mode of operation associated with the side of the docking station determined to be providing charge. | 2015-08-06 |
20150222139 | WIRELESS BATTERY CHARGING - Systems and designs for charging a battery in a wireless power transfer system are provided, which may include any number of features. In one embodiment, an implantable wireless power receiver is coupled to a battery with a rectifier circuit. The receiver can include battery monitor circuitry configured to measure a parameter of the battery. The receiver can be configured to wirelessly communicate the parameter of the battery to the transmitter, which can control delivery of power from the transmitter to the receiver based on the measured battery parameter. Power can be delivered to the battery without utilizing a battery charge control circuit in the device or receiver. Methods of use are also provided. | 2015-08-06 |
20150222140 | SWITCHABLE ENERGY STORAGE DEVICE AND METHOD FOR OPERATING A SWITCHABLE ENERGY STORAGE DEVICE - Switchable energy storage device ( | 2015-08-06 |
20150222141 | ELECTRONIC DEVICE AND ITS OPERATION SYSTEM - An electronic device carried around by the user is desired to be used for a long period. In order to achieve this, a high-capacity battery may be incorporated. Since a high-capacity battery is large, its incorporation in an electronic device increases the weight of the electronic device. An electronic device used while being implanted in the body of the user, provided with an emergency power supply, is provided. In an electronic device provided with a plurality of batteries, a transmitting portion and a receiving portion conduct wireless charging among different batteries, and the battery to be charged or used is selected by a power supply management circuit depending on the circumstances. | 2015-08-06 |
20150222142 | Contactless Charging Device - A contactless charging device is disclosed having a power connector, a cable, and a charging head. The cable has a first end connected to the power connector. The charging head is connected to an opposite second end of the cable, and has a magnet or a magnetic substance, and an electromagnetic coil. | 2015-08-06 |
20150222143 | SEMICONDUCTOR DEVICE AND POWER RECEIVING DEVICE - An object is to provide a semiconductor device that is capable of wireless communication, such as an RFID tag, which can transmit and receive individual information without checking remaining capacity of a battery or changing batteries due to deterioration with time in the battery for a drive power supply voltage, and maintain a favorable a transmission/reception state even when electric power of an electromagnetic wave from a reader/writer is not sufficient. The semiconductor device includes a signal processing circuit, a first antenna circuit connected to the signal processing circuit, an antenna circuit group, a rectifier circuit-group and a battery connected to the signal processing circuit. The first antenna circuit transmits and receives a signal for transmitting data stored in the signal processing circuit and drives a power supply circuit, and each antenna circuit of the antenna circuit group receives a signal for charging the battery and includes an antenna which has a different corresponding frequency. | 2015-08-06 |
20150222144 | POWER RECEIVING CIRCUIT, CONTROL METHOD FOR WIRELESS POWER RECEIVING APPARATUS, AND ELECTRONIC DEVICE - A power receiving control circuit is provided that receives AC coil current I | 2015-08-06 |
20150222145 | POWERING A SELF-SERVICE TERMINAL - The present invention provides a method and apparatus for powering a Self Service Terminal (SST), comprising a primary power supply, a back-up power supply, at least one renewable power supply, and a power management controller for selectively using the renewable power supply when a first power level is available from the renewable power supply, and to supplement or replace the renewable power supply with the primary power supply and/or the back-up power supply when a second power level is required by the SST that exceeds the first power level. | 2015-08-06 |
20150222146 | SYSTEMS AND METHODS FOR UNINTERRUPTIBLE POWER SUPPLIES WITH GENERATORS - Systems and methods where a power-packet-switching converter is used to interface a synchronous AC connection (e.g. to the utility power grid, or to a microgrid) to a DC source (e.g. a battery bank, or possibly a photovoltaic cell bank) and to a non-synchronous AC power source (e.g. a wind turbine or a motor-generator). The power-packet-switching converter not only provides voltage conversion and other functions (e.g. DC to AC, AC-AC with frequency change, 2-phase to 3-phase, power factor correction etc.), but also provides phase correction to convert asynchronous AC to synchronous AC. | 2015-08-06 |
20150222147 | SYSTEMS AND METHODS FOR UNINTERRUPTIBLE POWER SUPPLIES WITH BIDIRECTIONAL POWER CONVERTERS - Electrical power systems and methods using bidirectional power converters to provide, among other functions, uninterruptible power supplies for loads such as cell towers. The power-packet-switching power converter can be connected, for example, to a photovoltaic array, batteries, and a critical load such as a cell tower. An AC generator can also be connected in order to power the cell tower and/or to charge the batteries as needed. Green energy utilization is maximized, power conversion efficiency is increased, and system costs are decreased, by having only a single power conversion stage for all conversions. | 2015-08-06 |
20150222148 | WIRELESS POWER TRANSMISSION SYSTEM - A wireless power transmission system for wirelessly transmitting electric power from a power transmitting device to a power receiving device using magnetic field coupling between a power transmitting coil and a power receiving coil is provided. The power transmitting device includes a power transmitting circuit generating an electric signal for transmitting electric power, first and second power transmitting coils compatible with first and second transmission methods, respectively, a first magnetic substance on which the first power transmitting coil is placed, a second magnetic substance on which the second power transmitting coil is placed, and a power feeding surface on which the power receiving device is to be placed. First and second attachment surfaces of the first and second magnetic substances, respectively, are located on the lower side of the power feeding surface and arranged on a same plane surface parallel to the power feeding surface. | 2015-08-06 |
20150222149 | ROTATION ASSISTANCE MECHANISM AND ROTATING POWER MECHANISM EQUIPPED WITH SAME - A rotation assistance mechanism equipped with an attraction unit having a pair of magnetic bodies for which the opposite poles of the bodies are arranged facing one another. A magnetic body driving unit changes the distance between the pair of magnetic bodies with a prescribed period by means of the rotation of a rear wheel. A shielding unit has a pair of magnetic surfaces, the poles of which are the same as the respective opposing surfaces of the pair of magnetic bodies. A shield-driving unit that, in conjunction with the prescribed period, propels the shielding unit into the interval between the pair of magnetic bodies when the distance between the pair of magnetic bodies is reduced, and retracts the shielding unit from the interval between the pair of magnetic bodies when the distance between the pair of magnetic bodies is increased. | 2015-08-06 |
20150222150 | ELECTRIC MOTOR - An electric motor includes a rotor including magnetic poles whose number of pole pairs is P, P being a natural number, and a stator including windings. The stator includes (3/2)×P large teeth with a first pole pitch and (3/2)×P small teeth with a second pole pitch smaller than the first pole pitch. The large teeth and the small teeth are disposed so as to circumferentially alternate. The windings are wound concentratedly only on the large teeth. When the first pole pitch in electrical angle is X and the second pole pitch in electrical angle is Y, X is in a range from 144 to 180 degrees, and Y is equal to (240−X) degrees. The circumferentially adjacent windings are supplied with currents having a phase difference of 120 degrees in electrical angle therebetween, respectively. | 2015-08-06 |
20150222151 | ELECTRICAL MACHINE - A segment for supporting electromagnetic coupling elements of a stator or rotor of an electrical machine comprises a plurality of elongate laminations which are stacked in a first direction to form a lamination stack with elongate edges of the laminations defining opposite first and second major faces of the lamination stack. The segment comprises a plurality of elongate compression devices passing internally through the lamination stack in the first direction and arranged to compress together the laminations in the lamination stack. | 2015-08-06 |
20150222152 | MOTOR AND ROTOR - A motor includes a stator, a rotor, and a case. The stator includes a stator core and windings. The rotor is provided inside the stator. The rotor includes first and second rotor cores and a field magnet. The first and second rotor cores each includes a core base and claw-shaped magnetic poles. The core bases are opposed to each other and the claw-shaped magnetic poles of the first and second rotor cores are alternately disposed in a circumferential direction. The field magnet is disposed between the core bases in the axial direction. The field magnet is magnetized in the axial direction so as to cause the claw-shaped magnetic poles of the first rotor core and the second rotor core to function respectively as first magnetic poles and second magnetic poles. At least part of an end part of the case in the axial direction is made of a non-magnetic body. | 2015-08-06 |
20150222153 | ROTOR OF AN ELECTRIC MACHINE, AND ELECTRIC MACHINE - A rotor of an electric machine includes a rotor lamination stack connected to a rotor shaft for conjoint rotation therewith. The rotor lamination stack extends from a first axial face of the rotor lamination stack to a second axial face when viewed in the direction of an axis of rotation of the rotor lamination stack. The rotor lamination stack has bores distributed around the axis of rotation and extending from the first axial face to the second axial face when viewed in the direction of the axis of rotation. A tie rod which protrudes from the axial faces when viewed in the direction of the axis of rotation is inserted into each bore. Fastening elements are attached to the tied rods at both axial faces so that the rotor laminations of the rotor lamination stack are pressed together. The tie rods are cast in the bores by a casting material. | 2015-08-06 |
20150222154 | COUPLING OF PERMANENT MAGNETS IN ELECTRIC MOTORS - A permanent magnet for a permanent magnet electric motor is bonded to a rotor. A hole having a chamfered outer edge is formed in the permanent magnet. A corresponding mounting hole is formed in the body of the rotor. A bolt is threaded through the hole in the permanent magnet and threaded into the mounting hole of the rotor. An O-ring is positioned between the head of the bolt and the permanent magnet. The O-ring may be made of an elastomeric material which may prevent cracking of the permanent magnet as components of the electric motor expand and contract with fluctuations in temperature. A magnet may be held to a rotor by a dovetail or may include a flange to be held to the rotor by a retaining ring. | 2015-08-06 |
20150222155 | Rotating Electric Machine and Method for Manufacturing Same - A rotating electric machine having downsized coil ends is provided. In a rotating electric machine having a stator | 2015-08-06 |
20150222156 | DRIVER APPARATUS - A seal member of a driver apparatus contacts a case and a first frame end. The seal member has an opening in which a lead wire is inserted and an inside wall surface of the opening contacts the lead wire. Further, the seal member is made of a stretchable material, and is held in position only by a binding force between the case and the first frame end. The seal member is fixedly held by the first frame end and the case after an insertion of the lead wire in the opening and disposition on the fixing member opposing face. Therefore, an installation of the seal member is performed by an inserting the lead wire into the opening and a positioning the seal member on the case. | 2015-08-06 |
20150222157 | System for converting mechanical energy into electrical energy using tiles - The invention disclosed is a system that converts mechanical energy into electrical energy from passing traffic on a floor unit. The system includes an assembly to convert the mechanical energy into electrical energy and a converter to regulate and store the electrical energy. The assembly generates electricity by converting both the upward and downward motion, received from passing traffic above the movable surface. The generated energy is stored in a dual-stage electrical energy storage device. | 2015-08-06 |
20150222158 | MOTOR FOR WASHING MACHINE AND WASHING MACHINE HAVING THE SAME - A washing machine includes a tub; a drum arranged in the tub; and a motor mounted on the rear wall, the motor including a stator and a rotor. The stator includes a stator core, a first insulator and a second insulator. The rotor includes a rotor frame including a bottom, air inlets formed at the bottom, and a side wall extended from the bottom. The first insulator is disposed between the stator core and the bottom of the rotor frame, the first insulator including at least one heat dissipation hole. The second insulator is disposed between the stator core and the rear wall of the tub, the second insulator including at least one guide member to position the second insulator on the rear wall of the tub. The guide member is exposed through the dissipation hole when the stator is coupled to the rear wall of the tub. | 2015-08-06 |
20150222159 | INTERNAL CLOSED LOOP COOLING - An electric motor having internal closed loop cooling includes a cooling chamber coupled to the stator cover of the electric motor. A fan is positioned to circulate air through the interior of the electric motor and the cooling chamber. A heat sink in the cooling chamber removes heat from the circulating air. The heat sink may be coupled to a fluid cooling jacket to transfer heat thereto or therefrom. | 2015-08-06 |
20150222160 | COOLING DEVICE FOR ELECTRIC MOTOR AND ELECTRIC MOTOR - A cooling device for an electric motor, comprising a cover which has a cylindrical-shaped main part which can house the electric motor, and a fan motor which is attached to the main part so as to blow air to the inside of the main part. The cover further has an abutting part which protrudes from an inside periphery of the main part and can abut against the electric motor. The abutting part forms a gap for blowing air between the main part and the electric motor. | 2015-08-06 |
20150222161 | DEVICE COMPRISING AN ELECTRIC MACHINE WITH A LIGHTWEIGHT DESIGN - A machine comprising a base body and an electric machine is provided. The electric machine includes a stator pack and a rotor. The rotor is mounted in a bearing device relative to the stator pack so that the rotor can be rotated about a rotational axis relative to the stator pack. The rotor is embodied as an outer rotor such that the stator pack is arranged between the rotor and the rotational axis when seen radially with respect to the rotational axis. The base body is arranged at least partially radially inside the stator pack. The stator pack is thermally coupled to a cooling device such that heat produced in the stator pack is transferred in the cooling device. | 2015-08-06 |
20150222162 | PRESSURIZED AND GRAVITY-FED LIQUID COOLING OF ELECTRIC MOTOR - A liquid cooling system for an electric motor includes: a pump for liquid to cool the electric motor; a heat exchanger that removes heat from the liquid; a manifold extending above a stator of the electric motor, the manifold receiving the liquid under pressure and having a first opening that directs a first liquid jet onto the stator; and a first tray above first end turns of the stator, the manifold having a second opening that directs a second liquid jet onto the first tray, the first tray having a third opening that performs gravity-fed liquid distribution onto the first end turns. | 2015-08-06 |
20150222163 | ALTERNATOR ROTOR - Alternator rotor, comprising:
| 2015-08-06 |
20150222164 | ELECTRIC MOTOR ROTOR - A rotor of an electric machine is disclosed that resists expansion of the rotor components even at high rotational speed. The rotor includes first and second pluralities of laminations having slots to accept rotor bars. A support disk, also having slots, is placed between the laminations. The support disk, into which the rotor bars are slid, restrains the rotor bars from bending outwardly at high rotational speeds of the rotor. The rotor bars are further restrained at the ends by end rings, which have apertures into which ends of the rotor bars are placed. In some embodiments, containment rings are placed over axial extension of the end rings to prevent outward bowing at high speeds. In some embodiments, the rotor includes a stiffener sleeve to provide additional resistance to expansion during high rotational speeds. | 2015-08-06 |
20150222165 | RELUCTANCE-BASED RESONANT LINEAR MOTOR - Reluctance-based resonant linear motors and methods of operation are provided. An example linear motor includes a spring having a plurality of coils. The linear motor includes a stator coaxially surrounding at least a portion of the spring. The stator includes a plurality of teeth. The linear motor includes a plurality of windings respectively positioned within a plurality of winding cavities respectively formed by the plurality of teeth. The application of electrical energy to the plurality of windings generates a magnetic field that flows through one or more of the coils of the spring. The flow of the magnetic field through the one or more coils of the spring causes the spring to actuate towards a compressed position. An example method includes periodically applying electrical energy to the plurality of windings such that the spring oscillates at a resonance frequency associated with the linear motor. | 2015-08-06 |
20150222166 | FLEXIBLE DEVICES, SYSTEMS, AND METHODS FOR HARVESTING ENERGY - Embodiments of the present invention relate to systems, methods, and apparatus for harvesting energy by transforming mechanical energy into electrical energy. Particularly, the energy can be harvested by converting mechanical energy produced during operations or movements of a body (e.g., a vehicle, a person, a machine, etc.) that generate alternating or periodic force, which can be received by the energy harvesting device. | 2015-08-06 |
20150222167 | Linear Motor and Linear Motor Drive System - A linear motor is capable of miniaturization of a device, sharing of effective magnetic fluxes between the magnetic poles adjacent to each other, and decreasing a magnetic attractive force acting between a mover and an armature, and a linear motor drive system. The linear motor includes a mover, formed by lining up a plurality of pieces of permanent magnets or magnetic materials while inversing a magnetization direction thereof, and an armature. First and second magnetic pole teeth are disposed in such a way as to vertically tuck the permanent magnet or the magnetic material. A magnetic material links the first magnetic pole tooth to the second magnetic pole tooth, thereby forming a path for a magnetic flux, and windings are disposed on the first magnetic pole tooth and the second magnetic pole tooth, respectively. At least two units of the armatures are lined to be linked to each other. | 2015-08-06 |
20150222168 | RESISTANCE GENERATING DEVICE - A resistance generating device for a vehicle includes first and second transmission members placed next to each other along a rotary axis of the transmission members and a fixing member provided to form a clearance between the fixing member and a set of the plural transmission members in a radial direction of the rotary axis of the set of the plural transmission members. Each of the transmission members includes a position changing portion generating or releasing a resistance against a rotary motion of a rotary body so that the first transmission member is aligned in line with, or is displaced from the second transmission member along the rotary axis in a case where the first transmission member and the second transmission member rotate in accordance with a rotation of the rotary body, or in accordance with a rotation of a power receiving portion in response to a power. | 2015-08-06 |
20150222169 | RESISTANCE GENERATING DEVICE FOR DRIVE UNIT - A resistance generating device for a drive unit of an opening and closing member of a vehicle includes a transmission member transmitting a rotary motion to a rotary body, and a fixing member provided to form a clearance between the fixing member and the transmission member in a radial direction of a rotary axis of the transmission member. One of the fixing member and the transmission member includes a magnet and the other includes a magnetic body. The magnet is disposed to face the magnetic body so that the facing position facing each other is changed as the transmission member rotates. The magnet is disposed to face the magnetic body so that magnetic poles at the facing position alternate as the transmission member rotates. The magnetic body and the magnet generate a magnetic force therebetween, the magnetic force generating a resistance against an opening and closing movement of the opening and closing member. | 2015-08-06 |
20150222170 | MULTI-STRING INVERTER HAVING INPUT-SIDE EMC FILTER - An inverter includes a DC/AC converter, a DC intermediate circuit on the direct current input side of the DC/AC converter, multiple DC/DC converters connected in parallel to one another on the output side to the DC intermediate circuit, multiple inputs each coupled to one of the DC/DC converters, and an EMC filter connected between the inputs and the DC/DC converters. The EMC filter includes chokes in all current-carrying lines between the inputs and the DC/DC converters and filter capacitors between the inputs and the DC/DC converters leading from all the current-carrying lines to ground. The chokes in all current-carrying lines from the at least two inputs are formed by means of choke windings on a common core of a current-compensated choke. | 2015-08-06 |
20150222171 | CURRENT DETECTION AND EMULATION CIRCUIT, AND METHOD THEREOF - A current detection circuit for detecting a current in a SMPS which has a first switch and a second switch; a current sensing circuit sensing a second switch current flowing through the second switch and providing a current sensing signal; and a current emulation circuit which generates a first current according to the current sensing signal and generate a second current according to the first current source, and the current emulation circuit further providing a current emulation signal based on the first current source and the second current source; wherein a current detection signal during a first period is proportional to the current emulation signal, and the current detection signal during a second period is proportional to the current sensing signal. | 2015-08-06 |
20150222172 | VOLTAGE CONVERTER - A voltage converter such as a DC-DC buck regulator includes a driver circuit that enables charge stored on the parasitic capacitance of a transistor switch to be transferred to a load capacitor. Hence, stored charge can be harvested for use by a load, thereby increasing efficiency of the regulator. | 2015-08-06 |
20150222173 | POWER CONVERTER WITH FAST DISCHARGE CIRCUIT - A power converter with fast discharging to adapt to a load disconnect. The power converter comprises a magnetic component coupled between an input of the power converter and an output of the power converter. The magnetic component includes a primary winding and a secondary winding. A switch controls transfer of energy from the primary winding to the secondary winding according to on and off times of the switch. A discharge circuit is coupled to the output of the power converter. The discharge circuit is adapted to receive a signal indicative of whether the load is disconnected and to decrease an output voltage at the output of the power converter based on the signal indicative of whether the load is disconnected. | 2015-08-06 |
20150222174 | Method and Circuit Arrangement for Switching a Semiconductor Switch - A method is disclosed for switching a semiconductor switch from a first static switch state to a second static switch state by controlling a control connection of the semiconductor switch. The method includes switching the semiconductor switch in a current-controlled manner starting from the first static switch state in a first switching phase by applying at least one first specified actuating current at the control connection of the semiconductor switch in a controlled manner, and switching the semiconductor switch in a voltage-controlled manner in a second switching phase following the first switching phase by applying at least one first specified actuating voltage to the control connection of the semiconductor switch in a controlled manner until the second static switch state is reached. In this manner, switching losses are reduced. | 2015-08-06 |
20150222175 | Power Use Reduction Transformer - A power conditioning device reduces capacitive-in-nature, out of phase current (verses voltage), non-linear distortion, and/or leading power factor “noise” in electrical current in an electrical panel, improving the power efficiency of devices connected to the panel. The physical and electrical specifications of the device allow it to be more easily installed and give it a more robust installation environment. | 2015-08-06 |
20150222176 | START-UP REGULATOR FOR HIGH-INPUT-VOLTAGE POWER CONVERTERS - A power converter system includes first and second input terminals; a converter connected to the first and second input terminals and including an output terminal; a start-up circuit connected to a first capacitor and configured to charge the first capacitor during start-up and hiccup conditions; a voltage source connected to the first and second input terminals and configured to provide, during the start-up and hiccup conditions, a voltage proportional to a voltage applied to the first and second input terminals; and a voltage buffer including a MOSFET with a gate connected to the voltage source, a source connected to the start-up circuit, and a drain connected to one of the first and second input terminals. | 2015-08-06 |
20150222177 | High efficient single stage half bridge power factor correction converter - A half-bridge single stage PFC power converter includes a forward transformer and a main transformer. The primary windings of two transformer are connected in series. The main transformer transmits energy from a primary circuit to a secondary circuit. The forward transformer transits energy to PFC windings of the forward transformer to correct an input current waveform. A capacitor is connected to the primary winding of the forward transformer to reduce the switching loss of the converter. | 2015-08-06 |
20150222178 | CONVERTER - A SEPIC-type voltage converter for converting an input voltage supplied by a power supply into an output voltage comprises an inductive component comprising primary and secondary windings, an output capacitor for delivering power to a load by way of an output node, an AC coupling capacitor, a first rectifier for rectifying the output voltage, and a switch for periodically switching between an ON state in which the primary winding is energised by the power supply and in which the secondary winding is energised by the coupling capacitor, and an OFF state in which the output capacitor is charged by both the primary winding and the secondary winding. A second rectifier is connected in series with the secondary winding and the secondary winding is inductively coupled to the primary winding such that the secondary winding is influenced by changes in the voltage applied across the primary winding by the power supply. | 2015-08-06 |
20150222179 | ELECTRIC POWER DEVICE AND METHOD FOR PROVIDING ELECTRIC POWER IN ELECTRIC POWER DEVICE - An electric power device and a method for providing an electric power in the electric power device capable of improving efficiency of a conductor while decreasing an area where the electric power device is mounted are provided. The electric power device includes an inductor, and a plurality of converters configured to output voltages using the inductor. | 2015-08-06 |
20150222180 | SWITCHING REGULATOR CONTROL CIRCUIT AND SWITCHING REGULATOR - Provided is a switching regulator configured to achieve a 100% Duty state and reduce an occurrence of an overshoot. The switching regulator has a configuration in which a clamp circuit configured to dynamically generate a clamp level clamps an output voltage of an error amplifier in accordance with a peak value of a triangular wave signal. | 2015-08-06 |
20150222181 | ENHANCED PEAK CURRENT MODE DC-DC POWER CONVERTER - Apparatus and methods are provided for feedback circuitry in a power converter, the feedback circuitry including a first resistor coupled to a first node between a high switch and a low switch, a first capacitor in series with the first resistor, the first capacitor coupled to a second node, a first comparator having a positive terminal connected between the first resistor and the first capacitor and a negative terminal connected to a third node, the first comparator configured to compare a voltage at the positive terminal to a voltage at the negative terminal, wherein the feedback circuitry is configured to generate a ramp waveform at the positive terminal of the first comparator, an amplitude of the ramp waveform based on a time constant of the first resistor and the first capacitor. | 2015-08-06 |
20150222182 | Shunt Integrated Voltage Regulator - A method and apparatus for augmenting an external voltage regulator with a shunt integrated voltage regulator is disclosed. In one embodiment, an integrated circuit (IC) includes a load circuit coupled to a supply voltage node. The supply voltage node is electrically coupled to receive a supply voltage from an external voltage regulator. The IC also includes a shunt integrated voltage regulator coupled to the supply voltage node and implemented on the same IC die as the load circuit. If the supply voltage falls below a specified value (e.g., to increased current demand), the integrated voltage regulator may begin supplying current to the load. This may cause the supply voltage to return to within its specified range of the specified value, while allowing the external voltage regulator sufficient time to respond to the increased current demand. Thus, voltage droops on the supply voltage node may be minimized. | 2015-08-06 |
20150222183 | VOLTAGE DROOP CONTROL IN A VOLTAGE-REGULATED SWITCHED MODE POWER SUPPLY - A switched mode power supply (SMPS) comprising a controller configured to control switching of the SMPS to regulate an output voltage at an output of the SMPS based on a feedback signal that indicates the output voltage, and a voltage droop control circuit. The voltage droop control circuit comprises a voltage droop control signal generator that detects a voltage drop across a component of the SMPS that is indicative of a current flowing through the output of the SMPS during operation. The voltage droop control signal generator is an active device arranged to generate, based on the detected voltage drop, an output voltage droop control signal for causing the controller to adjust the regulation of the output voltage. The voltage droop control circuit further comprises a reference voltage generator arranged to bias at least one of the first and second inputs of the voltage droop control signal generator. | 2015-08-06 |
20150222184 | DIFFERENTIAL OUTPUT MODE FOR A MULTI-MODE POWER CONVERTER - A switching power stage for producing an output voltage to a load may include a power converter and a controller. The power converter may include a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations. The controller may be configured to, based on a measured parameter associated with the switching power stage, select a selected operational mode of the power converter from a plurality of operational modes, and sequentially apply switch configurations from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to transfer electrical energy from an input source of the power converter to the load in accordance with the selected operational mode. | 2015-08-06 |
20150222185 | SYSTEMS AND METHODS FOR CONTROLLING COMMON MODE VOLTAGE OF MULTI-MODE POWER CONVERTER - A switching power stage for producing an output voltage to a load may include a power converter and a controller. The power converter may include a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations. The controller may be configured to, based on a measured parameter associated with the switching power stage, select a selected operational mode of the power converter from a plurality of operational modes, and sequentially apply switch configurations from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to transfer electrical energy from an input source of the power converter to the load in accordance with the selected operational mode. | 2015-08-06 |
20150222186 | Adaptive Critical-Duty-Cycle Clamp for Power Converters - Devices and methods provide a duty cycle clamping device for preventing an output voltage of a power converter from decreasing as the duty cycle of a pulse width modulation (PWM) signal driving the power converter increases, the clamping device including duty cycle clamping circuitry configured to determine a critical duty cycle for the PWM signal based on an input voltage, a top voltage of a flying capacitor and a bottom voltage of the flying capacitor, and configured to clamp an actual duty cycle of the PWM signal at the critical duty cycle if a desired duty cycle exceeds the critical duty cycle. | 2015-08-06 |
20150222187 | DIGITAL SLOPE CONTROL FOR SWITCHED CAPACITOR DC-DC CONVERTER - Representative implementations of devices and techniques minimize switching losses in a switched capacitor dc-dc converter. The slope of the charging and/or discharging phase may be modified, smoothing the transitions from charge to discharge and/or discharge to charge of the switched capacitor. | 2015-08-06 |
20150222188 | HIGH FREQUENCY TRANSFORMER FOR REDUCING LEAKAGE FLUX - Disclosed is a high frequency transformer for reducing leakage flux, including a voltage transformation unit for transforming a first voltage, which is inputted thereto, into a second voltage, wherein: a primary winding is divided; and a secondary winding is arranged between the divided primary windings. | 2015-08-06 |
20150222189 | RECTIFYING CIRCUIT AND METHOD FOR AN UNBALANCED TWO PHASE DC GRID - The present invention relates to a rectifying method and circuit using a magnetically coupled double flyback converter. The main circuit can consist of only one transformer, two switches, two low frequency diodes, two high frequency diodes and two capacitors, so that power is inherently distributed according to the demand on the two DC phases and a sinusoidal grid current can be obtained without sophisticated control. | 2015-08-06 |
20150222190 | POWER SUPPLY DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME - A power supply device includes a transformer including primary winding and secondary winding, a sensor configured to sense at least one of output voltage and output current in the power supply device, a pulse width modulation (PWM) controller configured to perform PWM switching so that voltage is selectively provided to the primary winding based on one of the sensed output voltage and output current, and a regulator configured to stop PWM switching of the PWM controller and keep the PWM switching in stopped state when at least one of the sensed output voltage and output current exceeds a preset value. | 2015-08-06 |
20150222191 | POWER CONVERSION APPARATUS - A power conversion apparatus is provided which includes a first DC/DC converter and a second DC/DC converter which are connected to each other in parallel, and a controller which changes a state of the second DC/DC converter between operation and stop, based on an input current or an output current of the power conversion apparatus, and at least one current threshold determined based on a first characteristic curve showing a relation between current and conversion efficiency in a state where the second DC/DC converter is stopped while the first DC/DC converter is operated and a second characteristic curve showing a relation between current and conversion efficiency in a state where the first DC/DC converter and the second DC/DC converter are operated. | 2015-08-06 |
20150222192 | ELECTRICAL CIRCUIT FOR DELIVERING POWER TO CONSUMER ELECTRONIC DEVICES - An electrical circuit for providing electrical power for use in powering electronic devices is described herein. The electrical circuit includes a primary power circuit and a secondary power circuit. The primary power circuit receives an alternating current (AC) input power signal from an electrical power source and generates an intermediate direct current (DC) power signal. The intermediate DC power signal is generated at a first voltage level that is less than a voltage level of the AC input power signal. The secondary power circuit receives the intermediate DC power signal from the primary power circuit and delivers an output DC power signal to an electronic device. The output DC power signal is delivered at an output voltage level that is less than the first voltage level of the intermediate DC power signal. | 2015-08-06 |
20150222193 | METHOD OF FEEDBACK COMMANDING A MONOPHASE RESONANT CONVERTER, A RELATED MONOPHASE RESONANT CONVERTER AND A POLYPHASE RESONANT CONVERTER - A resonant converter includes a primary switching circuit having a primary winding and a primary switching stage configured to drive the primary winding; a secondary resonant circuit having a secondary winding magnetically coupled to the primary winding, a resonance capacitor connected in parallel to the secondary winding, and first and second secondary inductors respectively coupled between an output terminal of the converter and respective terminals of the resonance capacitor; a rectification stage connected in parallel with the resonance capacitor, and having first and second switches coupled to form a half-bridge; and a feedback command circuit. The command circuit is configured to receive feedback signals representing an output voltage and an output current at the output terminal of the resonant converter, receive voltages at the terminals of the resonance capacitor, and turn on/off, independently with respect to each other, the switches of the rectification stage and the primary switching stage. | 2015-08-06 |
20150222194 | Current-Modulated Smart Distribution Transformers, Modules, Systems, and Methods - A smart transformer comprises a current-modulated electronic power converter with an Alternating Current input (AC Port | 2015-08-06 |
20150222195 | ELECTRIC POWER CONVERTER - An electric power converter has a semiconductor stacked unit, auxiliary electronic components, a pressing member, and a case for accommodating these components. The case has a front wall in a stacking direction, a rear wall, a pair of side walls, and inner walls. The inner walls include a partition wall that is disposed opposing the front wall, and a support wall that is formed so as to extend toward the rear wall from a rear end surface of the partition wall. A unit accommodation space for accommodating the semiconductor stacked unit and the pressing member is formed between the partition wall and the front wall. Auxiliary accommodation spaces for accommodating the auxiliary electronic components are formed between the partition wall and the rear wall. | 2015-08-06 |
20150222196 | ELECTRIC POWER CONVERSION APPARATUS - An electric power conversion apparatus includes a channel case in which a cooling water channel is formed; a double side cooling semiconductor module that has an upper and lower arms series circuit of an inverter circuit; a capacitor module; a direct current connector; and an alternate current connector. The semiconductor module includes first and second heat dissipation metals whose outer surfaces are heat dissipation surfaces, the upper and lower arms series circuit is disposed tightly between the first heat dissipation metal and the second heat dissipation metal, and the semiconductor module further includes a direct current positive terminal, a direct current negative terminal, and an alternate current terminal which protrude to outside. The channel case is provided with the cooling water channel which extends from a cooling water inlet to a cooling water outlet, and a first opening which opens into the cooling water channel. | 2015-08-06 |
20150222197 | USING VARIABLE IMPEDANCE TO KEEP UNDER-LOADED ELECTRONIC TRANSFORMERS DELIVERING OUTPUT POWER - A sub-circuit for keeping under-loaded electronic transformers delivering output power, includes connectors (AC | 2015-08-06 |
20150222198 | Method and System for Transmitting Voltage and Current Between a Source and a Load - For transmitting voltage and current between a source and a load, a magnetic amplifier with a power winding connectable with the source and the load and with at least one control winding is provided, and current and voltage difference between the source and the load are controlled by applying a portion of a rectified source voltage to the at least one control winding of the magnetic amplifier, and applying a portion of a rectified load voltage to the at least one control winding of the magnetic amplifier to prevent the current from exceeding a level which can endanger the source and/or the load and to minimize the voltage difference between the source and the load. | 2015-08-06 |
20150222199 | SINGLE-PHASE ACTIVE FRONT END RECTIFIER SYSTEM FOR USE WITH THREE-PHASE VARIABLE FREQUENCY DRIVES - A voltage source inverter comprises a rectifier having an input for receiving single-phase AC power from an AC source and converting the AC power to DC power on a DC bus. The DC bus has first and second rails to provide a relatively fixed DC voltage. A DC bus capacitor is across the first and second rails to smooth voltage ripple. An inverter receives DC power from the DC bus and converts the DC power to AC power. An active front end circuit comprises a pair of filter capacitors in series across the first and second rails to create a midpoint. A bidirectional switch is connected between the rectifier input and the midpoint. The bidirectional switch is controlled to inject current into the midpoint of the DC bus. | 2015-08-06 |
20150222200 | INTERLEAVED 12-PULSE RECTIFIER - Among other things, one or more techniques and/or systems are provided for converting a three-phase AC voltage to a 12-pulse DC voltage, drawing a 12-pulse AC current from a three-phase network. A rectifier ( | 2015-08-06 |
20150222201 | DUAL-ELEMENT POWER MODULE AND THREE-LEVEL POWER CONVERTER USING THE SAME - A first electrode that is connected to a higher-side potential portion of a first element pair, a second electrode that is connected to a connection portion between a lower-side potential portion of the first element pair and a higher-side potential portion of a second element pair, and a third electrode that is connected to a lower-side potential portion of the second element pair, are provided on one of the main-surface sides of a module casing. The first electrode and the third electrode are arrayed in a direction orthogonal to a longitudinal direction of the module casing on one of the end sides in the longitudinal direction. The second electrode is arranged on the other end side in the longitudinal direction of the module casing. Three dual-element triple-terminal power modules with the same configuration, configured as described above, are used to configure a three-level power converter of one phase. | 2015-08-06 |
20150222202 | TOPOLOGY FOR CONTROLLED POWER SWITCH MODULE - The present topology for controlled power switch module is concerned with a module where the parasitic inductance of the emitter of the top power switch is optimized to allow the injection of a sample of the overvoltage across this parasitic inductance in the gate drive circuit of the top power switch as a feedback to slow down the slope of the falling gate voltage during an overvoltage that is above a predetermined value. | 2015-08-06 |
20150222203 | ELECTROSTATIC ENERGY-HARVESTING DEVICE HAVING 3-DIMENSIONAL CONE SHAPE - An electrostatic energy-harvesting device is provided. The electrostatic energy-harvesting device with a 3-dimensional cone shape includes a first structure including a first substrate having a cone shape with an opened lower surface and a hollow inside, and a first rubbing electrified body disposed on an outer surface of the first substrate; a second structure including a second substrate having the same shape as the first substrate and a second rubbing electrified body which includes a material having opposite electrification characteristics to the first rubbing electrified body and disposed on an inner surface of the second substrate; and leader lines connected to each of the first rubbing electrified body and the second rubbing electrified body. | 2015-08-06 |
20150222204 | SYSTEMS AND METHODS FOR GENERATING POWER FOR AN ELECTRIC SUB-ASSEMBLY OF A MOTOR VEHICLE - A system for generating power for an electric sub-assembly of a motor vehicle may include at least one reverse electrowetting energy harvesting element coupled to a tire of the motor vehicle. The system may further include at least one controller configured to accumulate electric energy generated by the at least one reverse electrowetting energy harvesting element and supply the accumulated electric energy to at least one sub-assembly mounted on the tire. | 2015-08-06 |
20150222205 | MOTOR DRIVEN APPLIANCE AND PROTECTION METHOD THEREOF - A motor driven appliance in one aspect of embodiments of the present disclosure comprises a motor, a first switching element, a second switching element, an operation unit, a control unit, and a monitoring unit. The first and second switching elements are provided on a current path from a power source to the motor, and are connected in series to each other. The monitoring unit monitors an operating state of a protection function by the control unit, and, when the protection function is activated, outputs an OFF signal for turning off the second switching element. | 2015-08-06 |
20150222206 | MOTOR DRIVING CIRCUIT - A main control circuit (11) for driving a motor is configured so as to have: a Pch FET (T | 2015-08-06 |
20150222207 | DRIVE CONTROL DEVICE FOR DRIVE SYSTEM INCLUDING VERTICAL CARRIER MACHINE - An object of the present invention is to provide a drive control device for a drive system including a vertical carrier machine that makes effective use of regenerative power generated at a vertical carrier machine with a high proportion of regenerative operation. The drive control device for a drive system including a vertical carrier machine includes: a drive control device (A) for an electric motor (M | 2015-08-06 |
20150222208 | VEHICLE - An electric motor gives regenerative braking force to a hybrid vehicle by regenerative control. A regeneration level selector selects regenerative braking force of the electric motor by a driver's operation. When an ECO mode is applied, an ECU increases the regenerative braking force selected by the regeneration level selector as compared with the time when the ECO mode is not applied. | 2015-08-06 |
20150222209 | METHOD AND SYSTEM FOR CONTROLLING THE REGENERATIVE BRAKING OF A VEHICLE - A method of and a system for controlling the regenerative braking of a vehicle includes initiating a regenerative braking mode in response to an initiating control input to an accelerator of the vehicle, the initiating control input comprising a reduction in the degree of actuation of the accelerator of the vehicle, modifying a level of regenerative braking in the regenerative braking mode in response to at least one of a further reduction in the degree of actuation of the accelerator, application of a brake of the vehicle, application of a clutch of the vehicle, and a change of gear of the vehicle, and maintaining a modified level of regenerative braking after the additional control input has been terminated. | 2015-08-06 |
20150222210 | GENERATING MOTOR CONTROL REFERENCE SIGNAL WITH CONTROL VOLTAGE BUDGET - A method of controlling a motor in a motor control system is provided. The method determines a control voltage budget value based on an operating region of the motor. The method adjusts a supply voltage signal based on the control voltage budget value. The method determines a motor voltage command based on the adjusted supply voltage signal. The method applies a voltage corresponding to the motor voltage command to the motor in order to generate a desired motor torque. | 2015-08-06 |
20150222211 | SHIFT RANGE SWITCHING APPARATUS - An actuator control unit has a first pattern in which the energization phase is switched on every switching of pulse signals, and a second pattern in which, even when a switching timing of the energization phase due to the switching of the pulse signals exists, the energization phase is not switched during a predetermined period, and, in an acceleration period before a specific position in which the actual rotation angle position of the detent plate is going toward the target rotation angle position and then the rotation becomes stable, the energization phase is switched with the first pattern set, then, in a deceleration period after the specific position in which the rotation of the motor is stable and then the actual rotation angle position generally matches the target rotation angle position, the energization phase of the motor is switched with the second pattern set. | 2015-08-06 |
20150222212 | ELECTRIC POWER TOOL - An electric power tool comprising a voltage conversion circuit configured to control magnitude of a voltage applied to a motor in accordance with magnitude of load. | 2015-08-06 |
20150222213 | Field Current Profile - An output of a generator may vary according to the speed of the engine, physical characteristics of the engine, or other factors. A profile for a generator that describes a periodic fluctuation in an operating characteristic for the generator is identified. A field current of an alternator associated with the generator is modified based on the profile for the generator in order to counter variations in the output of the generator. | 2015-08-06 |