52nd week of 2015 patent applcation highlights part 65 |
Patent application number | Title | Published |
20150372536 | METHODS AND APPARATUS FOR ELECTRONIC DEVICE POWER - Improved mechanisms for automated control of harvested energy delivery are described. A device harvests and stores energy and activates a controller when a sufficient level of stored energy is achieved. The controller retrieves previous power-off state information determines status information, and activates and powers a powered device. Just before insufficient energy remains to power the powered device, the controller stores shutdown status information and enters a power-off state. | 2015-12-24 |
20150372537 | SYSTEMS AND METHODS FOR PREVENTING ELECTRIC POWER CONVERTERS FROM OPERATING IN SLEEP MODE - A system for providing power to a load includes an output converter configured to provide power to a load, at least one battery coupled to the output converter, an input converter coupled to the at least one battery and the output converter, and a control circuit coupled to the input converter. The input converter is configured to provide an output voltage and an output current to the at least one battery and the output converter. The control circuit is configured to regulate the output voltage of the input converter at a defined voltage level to prevent the output converter from operating in a sleep mode. Other example systems, control circuits etc. are also disclosed. | 2015-12-24 |
20150372538 | CONTROLLED CONCURRENT UTILIZATION OF MULTIPLE POWER SUPPLIES - Technology for concurrently powering equipment from multiple power sources, and the control thereof is disclosed. One example implementation of the technology includes a first power supply that powers equipment from a first power source and a second power supply that also powers the equipment from a second power source while the equipment is being powered by the first power supply. A target direct current (DC) output voltage of at least one of the power supplies is changed, thereby changing a ratio of the power being drawn from the first power supply to the power being drawn from the second power supply. | 2015-12-24 |
20150372539 | SYSTEM AND METHOD FOR MONITORING AND CONTROL OF APPLIANCES - A system for monitoring and control of at least one appliance. The system comprises a computer server system and an electronic interface device installed remotely from the computer server system and in wireless communication with the computer server system. The interface device is configured to monitor power consumption of the at least one appliance and to control supply of power to the at least one appliance. The interface device is further configured to periodically transmit monitored power usage data to the computer server system, to receive at least one of data and commands from the computer server system and to control power to the at least one appliance based on the received at least one of data and commands. | 2015-12-24 |
20150372540 | WIRELESS POWER TRANSMISSION SYSTEM - A power transmission device includes a power-transmission-side active electrode and a power-transmission-side passive electrode. A power reception device includes a power-reception-side active electrode and a power-reception-side passive electrode. The power transmission device and the power reception device can be shifted along an X axis up to a maximum shift distance from a standard arrangement where electrode centers of the power-transmission-side active electrode and the power-reception-side active electrode oppose and are superposed with each other while maintaining the opposition surface area between the power-transmission-side active electrode and the power-reception-side active electrode. | 2015-12-24 |
20150372541 | RECTENNA CIRCUIT ELEMENTS, CIRCUITS, AND TECHNIQUES FOR ENHANCED EFFICIENCY WIRELESS POWER TRANSMISSION OR AMBIENT RF ENERGY HARVESTING - A rectenna includes (a) a multi-band multi-channel (MBMC) matching network, and/or (b) an adaptively reconfigurable rectifier or a breakdown-protected rectifier. An MBMC matching network includes a plurality of T-shaped transmission line matching structures coupled in series. An adaptively reconfigurable rectifier circuit includes a low input power rectifying portion, a high high input power rectifying portion, and a set of transistors configured for selectively and automatically transitioning the adaptively reconfigurable rectifier between a low input power operating configuration and a high input RF power operating configuration, in a manner correlated with input RF power level. A breakdown-protected rectifier includes a transistor-protected diode structure having a diode coupled to a transistor in a manner that protects the diode from direct exposure to negative voltages that would ordinarily cause the diode to break down in the absence of the transistor. | 2015-12-24 |
20150372542 | Variable Attractive Force Motor and Generator - An apparatus is disclosed for extracting electrical and mechanical energy from stored magnetic energy. The apparatus includes an axial flow turbine defined by a body having an increased magnetic density from a first exterior edge along a surface of the body to a second exterior edge. Also included is a magnetic element rotatably operable about the body of the axial flow turbine. The magnetic element is configured to cause increasingly level of the magnetic attraction from the first exterior edge to that of the second exterior edge. | 2015-12-24 |
20150372543 | SYSTEM AND METHODS OF ELECTRIC MACHINE ROTOR POSITION DETECTION - An electric machine includes a stator assembly defining a longitudinal axis. The stator assembly includes a substantially cylindrical stator core that is concentric with and extends longitudinally along the longitudinal axis. The stator core includes a stator pole having an inner surface spaced radially outward from the longitudinal axis. The stator pole includes a first aperture extending radially outward from the inner surface of the stator pole. The electric machine also includes a rotor assembly rotatable about the longitudinal axis. The rotor assembly includes a rotatable shaft and a rotor core. The rotor core is concentric with and extends longitudinally along the longitudinal axis. The rotor core also includes a rotor pole including an outer surface spaced radially outward from the longitudinal axis. The outer surface is spaced radially inward from the stator pole inner surface. | 2015-12-24 |
20150372544 | Rotary Electric Machine - It is necessary to keep the positional relation between a stator and a housing for a long time, so the stator and housing must be fixed to each other with increased adhesive strength. Since this kind of rotary electric machine is a mass-produced product, the fixing method is demanded to be simple enough to be suitable for mass production. In order to meet this demand, in a rotary electric machine, for bonding and fixing the stator and the housing for covering the stator by synthetic resin, a plurality of projecting parts are formed on the inner circumference of the housing and synthetic resin is poured into between the stator and housing to bond and fix the stator and housing. | 2015-12-24 |
20150372545 | AXIAL-FLUX ELECTRIC MACHINE WITH WINDING ROTOR AND METHOD FOR THE PRODUCTION THEREOF - An axial-flux electric machine with a winding rotor comprises a stator section and a rotor section, both developing around and axis. The rotor section comprises a rotor, which, in turn, comprises a toroidal rotor core made of a ferromagnetic material and a plurality of windings and of teeth, which are angularly distributed on the rotor core in an alternated configuration. The teeth have, on at least one lateral surface of theirs, a shaped profile defining at least one holding surface, which is such as to cooperate with a resin matrix, which is suited to steadily lock the teeth on the rotor core. | 2015-12-24 |
20150372546 | MECHANICALLY STABILIZED ROTOR FOR A RELUCTANCE MOTOR - A rotor for a reluctance motor includes a laminated core having a number of rotor sheet metal blanks. Each rotor sheet metal blank includes flux barriers cast with a non-ferromagnetic casting compound and at least one soft-magnetic rotor sheet which delimits the flux barriers. Flux barriers of adjacent rotor sheet metal blanks are arranged offset relative to one another so that the flux barriers of one of the adjacent rotor sheet metal blanks are delimited in an axial direction at least partially by the rotor sheets of the other one of the adjacent rotor sheet metal blanks, with the casting compound of the flux barriers adhering in an adhesion zone to the rotor sheets. | 2015-12-24 |
20150372547 | ROTOR AND ROTARY ELECTRIC MACHINE - Each of permanent magnets includes a magnet body formed across the radial direction of a rotor core, and a pair of magnet end parts bending toward the outer peripheral side of the magnet body and extending respectively from both ends of the magnet body in the peripheral direction toward the outer edge of the rotor core. Magnetization directions of the magnet end parts and a magnetic pole center line intersect with each other on the outer peripheral side of the magnet body. The inclination angle of each magnetization direction of the magnet end parts with respect to the magnetic pole center line is greater than the inclination angle of a magnetization direction of the magnet body with respect to the magnetic pole center line. | 2015-12-24 |
20150372548 | INTERIOR PERMANENT MAGNET MOTOR, COMPRESSOR AND REFRIGERATION AND AIR CONDITIONING APPARATUS - A rotor outer peripheral surface includes first arcs and second arcs. The first arc is positioned in a magnetic pole center portion. The second arc is positioned in an inter-pole portion. The first arc bulges toward a radially outer side to a higher degree than the second arc. An air gap is varied in a manner of being increased as approaching from each of the magnetic pole center portions to the adjacent inter-pole portions. A hole defining portion of a magnet insertion hole on the radially outer side has a curvature of a third arc, and a hole defining portion of the magnet insertion hole on a radially inner side has a curvature of a fourth arc. An opening angle of a tooth tip portion, an opening angle of the first arc, and an opening angle of the third arc coincide with each other. | 2015-12-24 |
20150372549 | MOTOR - A motor including a stator assembly and a rotor assembly. The stator assembly includes a stator core and a winding; the stator core includes a yoke and a plurality of teeth protruding inwards from the yoke; between two adjacent teeth formed is a winding slot; the winding is arranged in the winding slot, and winded on the teeth. The rotor assembly includes a rotor core and a permanent magnet. The rotor core includes an annular ring having a central axial bore and a plurality of magnetic induction blocks protruding outwards from an outer side of the annular ring. Between two adjacent magnetic induction blocks formed is a radial recess for mounting the permanent magnet. The magnetic induction blocks at both sides of an opening of the radial recess protrude with a hook block. The thickness of the rotor core is larger than that of the stator core. | 2015-12-24 |
20150372550 | MOTOR ROTOR ASSEMBLY AND MOTOR COMPRISING THE SAME - A motor rotor assembly including: a rotor core, a plurality of permanent magnets, and end plates. The permanent magnets are disposed on the rotor core, and the end plates are disposed at two end surfaces of the rotor core, respectively. A plurality of grooves is disposed at the outer edge of the top surface of the end plates, a plurality of convex columns protrudes from the bottom wall of the end plates. | 2015-12-24 |
20150372551 | STRUCTURE OF STATOR - A stator including a stator core having an annular yoke, a plurality of teeth protruding in a radial direction from a radial side surface of the yoke, and slots each formed between two of the teeth which are adjacent to each other in a circumferential direction; and a plurality of stator coils disposed in the circumferential direction in the stator core, formed by a rectangular conductor having a quadrilateral section, and each having two slot portions that are accommodated in different ones of the slots, and coil end portions that protrude outward in an axial direction from axial end faces of the stator core to connect the two slot portions. | 2015-12-24 |
20150372552 | THREE-PHASE ALTERNATING CURRENT ELECTRIC MOTOR PROVIDED WITH STRUCTURE REDUCING TORQUE RIPPLE - A three-phase alternating current electric motor wherein when a number of pole pairs of a rotor is P and a number of slots in which stator windings are inserted is N, N/(6P) becomes an irreducible fraction with a value of a denominator of 4 or more and wherein the relation of N>3P stands, in which the motor, for the layout of one layer of windings arranged in the slots, the UVW three-phases are arranged so as to have rotational symmetry of ±120 degrees in terms of mechanical angle from each other and, for the layout of the second layer, the windings are arranged reversed in direction by 180 degrees in electrical angle from the phases of the first layer of windings which have rotational symmetry and offset by M number of slots from the first layer, where T is a particular odd number for the relationship of 4/35≦|T−2PM/N|≦ 8/35 is given. | 2015-12-24 |
20150372553 | A STATOR ASSEMBLY FOR AN ELECTRIC SUPERCHARGER - An electric supercharger comprises a motor, for example a switched reluctance motor. The motor includes a stator assembly ( | 2015-12-24 |
20150372554 | CENTRALIZED POWER DISTRIBUTION MEMBER FOR MOTOR - A centralized power distribution member A for motor arranged on the outer periphery of a stator S of a motor and configured to feed power to windings of the stator S includes a plurality of annular busbars | 2015-12-24 |
20150372555 | WIRE TERMINAL JOINT OF MOTOR STATOR WINDING - A wire terminal joint of a motor stator winding, including: an external power wire, the external power wire including a core extending from one end thereof; a plurality of aluminum-enameled wires, each aluminum-enameled wire including an exposed aluminum wire at one end thereof; a first sleeve; and a second sleeve. The aluminum-enameled wires are disposed on the motor stator winding. The core extending from one end of the external power wire is interwound with and electrically connected to the exposed aluminum wire. The first sleeve has a larger diameter than the second sleeve. The second sleeve is sleeved on the core and the exposed aluminum wire. One end of the first sleeve is sleeved on external surfaces of the external power wire and the exposed aluminum wire, and another end of the first sleeve is sleeved on an external surface of the second sleeve. | 2015-12-24 |
20150372556 | GREASE LEAKAGE PREVENTING STRUCTURE FOR GEAR REDUCER - A grease leakage preventing structure is provided for a gear reducer of a dynamoelectric machine with a gear reducer, which is capable of preventing, if soft grease with high consistency is employed in a gear reducer driven at a high speed for high output power, leakage of grease from the reducer toward the dynamoelectric machine, by covering an output shaft of the dynamoelectric machine with a grease blocking member. In a grease leakage preventing structure for a gear reducer of a dynamoelectric machine with the gear reducer, in which gear teeth are provided in a leading edge portion of the output shaft of the dynamoelectric machine, the leading edge portion of the dynamoelectric machine output shaft is introduced into a case of the gear reducer via an input port of the gear reducer, and the dynamoelectric machine output shaft with the gear teeth is engaged with a gear arranged inside the case of the gear reducer, the grease leakage preventing structure is provided with a grease blocking member ( | 2015-12-24 |
20150372557 | PUMP UNIT - A pump assembly with an electric motor which includes a stator housing ( | 2015-12-24 |
20150372558 | BRUSHLESS MOTOR - A brushless motor having, a casing for containing a stator body and for a rotor with a driving shaft, an exit cap with an outlet for the driving shaft and a closure cap. The closure cap, includes an output for power cables and is disposed opposite the exit cap and supports an electronic board for controlling the brushless motor. The closure cap further includes a recess for containing the electronic control board, which is defined so as to be recessed in an axial direction with respect to the outer surface of the cap. | 2015-12-24 |
20150372559 | INVERTER CIRCUIT BOARD AND INVERTER-CONTAINING ELECTRIC COMPRESSOR USING SAME - Provided is an inverter circuit board to which a P-N terminal is attached firmly and attached such that stress applied to the circuit board can be distributed, making it possible to prevent detachment of the P-N terminal or damage to the circuit board or any components mounted thereon. Also provided is an inverter-containing electric compressor. A P-N terminal ( | 2015-12-24 |
20150372560 | Brush Motor - A brush motor has a housing, an end cap and a brush assembly. The brush assembly includes an brush card, brush cages disposed on the brush card, brushes mounted in the respective brush cages, terminals for connecting with an external power supply, and power supply circuits connecting the terminals to the respective brushes. The brush assembly further includes at least one grounding conductor mounted to the brush card and electrically connected to the power supply circuits. The grounding conductor includes a main portion fixed to the brush card and a tongue extending from the main portion. The tongue includes a bent portion for resilient connection to the end cap or housing. | 2015-12-24 |
20150372561 | MOTORIZED SERVO DEVICE HAVING BEARING FOR SUPPORTING SPINDLE OF MOTOR - A motorized servo device includes a case, a bearing and a motor. The case is provided with a top plate having a top surface and a bottom surface, an installing seat protruding from the top surface of the top plate, and an accommodating space located under the bottom surface of the top plate. The bearing is mounted in the installing seat of the case. The motor is disposed in the accommodating space and has a spindle penetrating through the top plate of the case and the bearing. As a result, the motorized servo device can output relatively higher power and has relatively higher structural reliability and motor accuracy, and simpler process of assembly. | 2015-12-24 |
20150372562 | MECHANICAL MOTOR SOFT START AND SYSTEMS AND METHODS RELATING THERETO - A system of providing a mechanical soft start of a load driven by an electrical motor is provided. The system includes, in addition to the rotor driven by the electric motor during normal operation, a drive belt coupled to both the electric motor and the rotor for communicating mechanical power from the electric motor to the rotor. The system further includes a secondary motor, and a primary roller coupled to the secondary motor, wherein the roller is selectively engaged with the drive belt during a mechanical soft-start to communicate mechanical power from the secondary motor to the rotor without requiring mechanical power from primary motor. | 2015-12-24 |
20150372563 | MOTOR DEVICE - A motor device may include a motor comprising a motor shaft protruded from a motor main body; a worm gear connected with the motor shaft through a coupling; a worm wheel engaged with the worm gear; and a frame on which the motor, the worm gear and the worm wheel are mounted. The coupling may include a motor side coupling part; a transmission member; and a worm gear side coupling part. The motor side coupling part and the transmission member may be relatively movable in a first direction perpendicular to the axial line direction. The transmission member and the worm gear side coupling part may be relatively movable in a second direction perpendicular to the axial line direction and intersecting the first direction. A compression coil spring may be disposed between the transmission member and an end part of the worm gear. | 2015-12-24 |
20150372564 | MOUNTING METHOD OF ELECTROMAGNETIC GENERATOR AND TIRE WITH BUILT-IN ELECTROMAGNETIC GENERATOR - When an electromagnetic generator | 2015-12-24 |
20150372565 | GENERATOR COOLING ARRANGEMENT - A cooling arrangement configured to cool stator windings of the stator of a generator, the cooling arrangement including an inflow guiding means for guiding a cooling airflow into axial winding channels, wherein an axial winding channel extends along a gap between adjacent stator windings in a direction essentially parallel to an axis of rotation of the generator, and subsequently into an interior cavity of the stator, and an outflow guiding means for removing the cooling airflow from the interior cavity of the stator is provided. A generator including an outer rotor and an inner stator, the stator including an arrangement of stator teeth about an annular supporting structure and a plurality of windings arranged pair-wise between adjacent stator teeth, and wherein the stator is configured for connection to a cooling arrangement is also provided. A wind turbine and a method is further provided. | 2015-12-24 |
20150372566 | GENERATOR ARMATURE - A generator armature including a plurality of laminate sheets stacked to form an annular arrangement of armature teeth, whereby each pair of adjacent armature teeth is separated by an axial winding slot extending a direction essentially parallel to an axis of rotation of the generator; and a plurality of radial cooling channels, whereby a radial cooling channel is realized to transport a cooling medium and extends from an axial winding slot to an interior cavity of the generator, and wherein a radial cooling channel includes a series of aligned notches in the laminate sheets of a laminate stack is provided. A laminate sheet for an armature of a generator, a cooling arrangement, a generator, a wind turbine, and a method of cooling stator windings arranged on an armature of a generator is also provided. | 2015-12-24 |
20150372567 | PURGE SYSTEM CAPABLE OF CONTROLLING FLOW RATE OF AIR - An air purge system includes an electric motor having an air purge device which supplies air to a space around the outer peripheral surface of an output shaft, an information acquisition unit which acquires operation information of the electric motor, and an air control unit, which controls the amount of air supplied from the air purge device in response to the acquired operation information. The air control unit increases the amount of the air supplied from the air purge device when the information acquisition unit acquires deceleration operation information of the electric motor. | 2015-12-24 |
20150372568 | ELECTRICAL MACHINE WITH DIRECT STATOR COOLING - An electromechanical transducer includes at least one rotor which is arranged on a shaft and is arranged in an encapsulated stator. The stator has a laminated core and a winding which are surrounded by an insulating cooling fluid. The cooling fluid can be introduced via first cooling ducts which are arranged radially with respect to the shaft in the center of the stator and can be discharged at each axial end of the stator radially with respect to the shaft via second cooling ducts in the winding head region, or vice versa. As a result it is possible to provide a compact and robust electromechanical transformer which owing to its lightweight design with a high torque density is suitable for use, for example, in aircraft or other vehicles. | 2015-12-24 |
20150372569 | Electric Motor - An electric motor has an end cap assembly having a ground connection. The motor has a housing, a brush assembly including brushes, electrical components and a terminal holder, an end cap, and a ground plate. The brush assembly is secured in an open end of the housing. The end cap is positioned on an outer side of the brush assembly and fixed to the housing. The ground plate is disposed between and is resiliently compressed by the brush assembly and the end cap. The plate includes a plurality of elastic structures. Each elastic structure resiliently bears against corresponding leads of at least some of the electrical components. The ground plate is electrically connected to at least one of the housing and the end cap to accomplish a ground connection. | 2015-12-24 |
20150372570 | APPARATUS AND METHOD FOR PRODUCING STATORS OF DYNAMO ELECTRIC MACHINES FORMED FROM AN ASSEMBLY OF POLE SEGMENTS - An apparatus and method for manufacturing stators of dynamoelectric machines, the stators being formed as an assembly of pole segments; the apparatus comprising a seat where the assembly of pole segments are seated. An engagement assembly engages first ends of the pole segments for translation of the pole segments from the seat to a transfer device. A first holding assembly comprises a first plurality of holding members for clamping the pole segments to hold the pole segments as an assembly of pole segments. The first holding assembly being arranged on the transfer device moveable to transfer the assembly of pole segments from a first position to a second position. A casing assembly is located at the second position and provided with a second plurality of holding members for holding the assembly of pole segments. The second plurality of holding members are positioned on the casing assembly to surround the assembly of pole segments that are located at the casing assembly. | 2015-12-24 |
20150372571 | METHOD FOR MANUFACTURING LAMINATED IRON CORE - In a method for manufacturing a laminated iron core from a thin sheet, the method includes coining the thin sheet from below to form a thinned bridge portion on an outer peripheral portion of an iron core piece, blanking the iron core piece from the thin sheet from above or below after forming the bridge portion, and laminating the iron core piece on another iron core piece to manufacture the laminated iron core. | 2015-12-24 |
20150372572 | METHOD FOR MANUFACTURING LAMINATED IRON CORE - In a method for manufacturing a laminated iron core from a thin sheet, the method includes coining the thin sheet from above to form a thinned bridge portion on an outer peripheral portion of an iron core piece, blanking the iron core piece downwardly from the thin sheet using a set of an outer-shape blanking punch and a die after forming the bridge portion, wherein the outer-shape blanking punch includes a projection portion fitted into the bridge portion when blanking, and laminating the iron core piece on another iron core piece to manufacture the laminated iron core. | 2015-12-24 |
20150372573 | METHOD AND APPARATUS FOR FORMING A CONCENTRIC WINDING COIL - A method for forming a concentric winding coil in which a coil end portion protruding from an axial end face of a stator core has a plurality of different nonlinear shapes, from a rectangular conductor wound in a predetermined number of turns, the method including forming the coil end portion into the plurality of different nonlinear shapes in one step by causing a die to make a stroke movement in a predetermined direction with respect to the rectangular conductor being set. | 2015-12-24 |
20150372574 | SINGLE-PHASE SHADED POLE INDUCTION MOTOR, CONVERTIBLE TO PERMANENT MAGNET MOTOR - The present invention refers to a shaded-pole single-phase motor convertible into a permanent magnet motor of the type that comprises a front casing, a stator element, a rotor element, a plurality of windings placed over the protruding poles of the stator element, and a rear casing, wherein the stator element presents a square-shape configuration with the four protruding poles rotated 45° relative to the horizontal and vertical symmetry axes in order to be aligned with the four corners of the stator element. | 2015-12-24 |
20150372575 | HIGH SPEED INDUCTION MACHINE WITH FRACTIONAL-SLOT TOOTH-COIL WINDING - A high speed induction motor assembly comprising a solid, multilayer rotor and a stator core with a fractional-slot tooth-coil winding is provided. The ratio of slots number per pole and phase is sub-unitary. The rotor includes a solid ferromagnetic core coated with a layer of copper. Due to the permeability of the copper material coating the solid rotor core, the motor assembly may have an effective radial magnetic air-gap that is larger than its mechanical radial air gap, which is defined between the inner surface of the stator core and the outer surface of the copper layer coating the solid rotor core. | 2015-12-24 |
20150372576 | INDUCTION MOTOR SQUIRREL-CAGE ROTOR BAR RELIEF - A rotor bar relief system and a method of manufacturing a squirrel-cage rotor including a rotor bar relief system are disclosed where a plurality of rotor bars affixed within corresponding slots of an end cap of the shaft of the rotor and where each of the rotor bars has a relief formed in the end of the rotor bar affixed to the slots of the end cap. The reliefs may have a variety of cross sections and the slots may have a variety of shapes. The reliefs can be formed as the rotor bars are extruded or subsequent to production of the rotor bars. The rotor bars may be further inserted along a substantial portion of their lengths into slots in laminations of a core around the shaft. The rotor bars can be used in induction engines or induction generators and are useful in cryogenic systems. | 2015-12-24 |
20150372577 | Rotor, Reluctance Machine and Production Method for a Rotor - A rotor for a reluctance machine is provided. The rotor includes a cylindrical soft-magnetic element having cutouts for forming magnetic flux barriers. Some or all of the flux barriers are divided by one or more webs, with the profile of the individual webs forming a closed line which divides the rotor in the radial direction into an inner and an outer region. The cut-outs may be partially or fully filled with a a paramagnetic or diamagnetic filler material. | 2015-12-24 |
20150372578 | MOTOR - A rotating portion of a motor includes magnets and a rotor core that holds the magnets in holding holes. Each of the magnets includes a first magnet element and two second magnet elements. The two second magnet elements are located on opposite circumferential sides of the first magnet element, and a coercivity of the two second magnet elements is smaller than the first magnet element. The rotor core includes a flux barrier including a void located on a radially inner side of the first magnet elements. A width of the magnets in a direction perpendicular or substantially perpendicular to a radial direction passing through a center of the corresponding first magnet element is larger than a width in the same direction of the corresponding flux barrier within a plane perpendicular or substantially perpendicular to the center axis. | 2015-12-24 |
20150372579 | PERMANENT MAGNET MOTOR HAVING REDUCED TORQUE RIPPLE - A permanent magnet motor, including: a stator assembly and a rotor assembly. The stator assembly includes: a stator core and a coil winding. The stator core includes: a yoke portion, a plurality of tooth portions, and a plurality of winding slots. The rotor assembly includes: a rotor core, a plurality of permanent magnets, and a rotor sheath. The tooth portions are extended out of the yoke portion. Each winding slot is formed between adjacent tooth portions. The permanent magnets are disposed at intervals on a surface of the rotor core and magnetic poles of two facing sides of adjacent permanent magnets are the same. The rotor sheath is disposed outside the rotor assembly and is divided into at least two segments axially. A magnetic conductivity of a first segment of the rotor sheath is different from a magnetic conductivity of a second segment of the rotor sheath. | 2015-12-24 |
20150372580 | MOVING MAGNET MOTORS - An apparatus includes a load, a lever that is coupled to the load, and an electric motor that is coupled to the lever for driving the lever in oscillatory, rotary motion about a pivot axis. The electric motor includes an armature and a stator. The armature is coupled to the lever and includes a permanent magnet. The stator defines an air gap within which the armature is disposed. The stator is configured for creating magnetic flux across the air gap for the permanent magnet to interact with, thereby to drive motion of the load. The electric motor is configured such that substantially no detent forces (a/k/a cogging forces) are generated between the stator and the permanent magnet as the lever is driven by the motor. | 2015-12-24 |
20150372581 | Kinetic energy system utilizing multi-size multi-use high speed rotating flywheel - Processes used in the past were hazardous due to the material with which they were constructed, the design, and the location of the flywheel used on the device. In addition, the energy was inefficiently drawn from the flywheel which caused them to be replaced by fuel driven engines which emitted CO/2 and other greenhouse gases. My invention will create kinetic energy with zero greenhouse gases and all safety issues are remedied by high grade materials and new safety specifications. My invention is to turn a flywheel containing more kinetic energy than required by an electrical generator to produce power. The flywheel will be driven by an external energy source and, by overcoming the required kinetic energy of the electrical generator with the kinetic energy of the flywheel spinning at a high R.P.M., it will create kinetic energy. | 2015-12-24 |
20150372582 | CONTROL OF A THREE-PHASE VOLTAGE CONVERTER IN UNBALANCED MODE - A method of controlling current in a three-phase voltage converter operating in current imbalance mode, the method being:
| 2015-12-24 |
20150372583 | OVERVOLTAGE PROTECTION AND POWER SAVING CIRCUIT FOR A SWITCHED MODE POWER SUPPLY - The present invention relates to electrical power supplies and, more particularly, to an overvoltage protection and power saving circuit in switched-mode power supplies (SMPS) ( | 2015-12-24 |
20150372584 | DC-AC CONVERSION DEVICE, CONTROL CIRCUIT CONTROLLING OPERATION OF DC-AC CONVERSION DEVICE, AND CONTROL METHOD FOR CONTROLLING OPERATION OF DC-AC CONVERSION DEVICE - Provided is a DC-AC conversion device capable of reducing ripple current output from a battery. | 2015-12-24 |
20150372585 | System and Method for a Normally-on Switched Mode Power Supply - A method for operating a switched mode power supply (SMPS) during a start-up sequence includes receiving an input current at a bias supply circuit while a first relay and a second relay coupled to a first side circuit within the SMPS are open, generating a first bias supply voltage based on the received input current, closing the first relay after generating the first bias supply voltage, conducting the input current through the first relay and through an in-rush resistor coupled in series with the first relay, and closing the second relay after a first time period. | 2015-12-24 |
20150372586 | Power Factor Correction Control Circuit and Power Adapter Thereof - Disclosed are a power factor correction circuit and a power adapter, and the power factor correction circuit includes a sampler, a controller and a current limiter, and the controller includes an error amplification unit, a peak value adjusting unit, an ON/OFF computing unit and a phase lock unit. The sampler is coupled to the phase lock unit, and the current limiter is coupled to the error amplification unit and the ON/OFF computing unit, so as to achieve the effects of enhancing the power factor property of the power factor correction circuit, lowering the manufacturing cost, and improving the electric power utilization. | 2015-12-24 |
20150372587 | POWER SUPPLY CIRCUIT AND POWER FACTOR CORRECTION CIRCUIT - A power supply circuit includes a switching element and a control section. The control section converts back electromotive force generated at the time of the operation of the switching element to optical energy and converts the optical energy to an electrical signal. Furthermore, the control section drives the switching element on the basis of the electrical signal obtained by converting the optical energy. Accordingly, unlike a case where surge energy is regenerated by resonance, there is no need to use a resonant element such as an inductor. As a result, circuit scale is reduced. | 2015-12-24 |
20150372588 | CONTROL CIRCUIT IN POWER FACTOR CORRECTION CIRCUIT - A control circuit in a power factor correction (PFC) circuit includes: a multiplier, used for multiplying a voltage sampling signal by a feedback signal, and outputting a first signal; and a waveform generating module, used for generating a second signal related to a filter capacitor connected in parallel to an input end and/or an output end of a rectifier bridge. A control signal for controlling a state of a main switch transistor is generated by using the first signal, the second signal, and a current sampling signal of the main switch transistor in the PFC circuit. | 2015-12-24 |
20150372589 | DRIVING CIRCUIT, OPERATION METHOD THEREOF AND DISPLAY APPARATUS - Provided are a driving circuit and its operation method and a display apparatus. The driving circuit comprises a boost circuit unit, a load unit and a voltage monitoring unit, the load unit is connected to a power source providing an initial input voltage, the boost circuit unit is connected to both the load unit and the voltage monitoring unit, the load unit is connected to the voltage monitoring unit; the load unit provides a resistor of fixed resistance value; and the voltage monitoring unit determines whether an actual voltage input into the boost circuit unit is smaller than a predetermined voltage, and generates a reset signal which is used to control the driving circuit to restart if it is determined that the actual voltage is smaller than the predetermined voltage. The driving circuit can perform self-detection of its own electro-static electricity, and perform self-recovery when detecting that an electro-static current exceeds the maximum current that the driving circuit can withstand, such that the capability of anti electro-static electricity of the display apparatus is improved. | 2015-12-24 |
20150372590 | CHARGE PUMP, POTENTIAL CONVERSION CIRCUIT AND SWITCHING CIRCUIT - A charge pump includes a positive potential generation circuit that generates a positive potential, and a negative potential generation circuit that generates a negative potential. The positive potential generation circuit includes rectifying elements connected in series between a reference potential node and an output node, and capacitors are connected to a node between each adjacent pair of rectifying elements and to one of a first and second clock signal port. The negative potential generation circuit includes rectifying elements connected in series between the reference potential node and the output node in an opposite direction to that of the first rectifying elements. Capacitors are connected to a node between each adjacent pair of rectifying element in the negative potential generation circuit and one of a third and fourth clock signal port. | 2015-12-24 |
20150372591 | POSITIVE AND NEGATIVE POTENTIAL GENERATING CIRCUIT - A potential generating circuit of includes a charge pump having a first node at which a positive potential is output and a second node at which a negative potential is output. The potential generating circuit also includes a first filter between the first node and a first terminal that removes noise and outputs a filtered positive potential at the first terminal. A first clamp circuit adjusts the level of the filtered positive potential. A second filter is between the second node and a second terminal to remove noise from the negative potential and output a filtered negative potential at the second terminal. A second clamp circuit adjusts the level of the filtered negative potential. In the potential generating circuit there is no direct connection between the first end node and a ground line or between the ground line and the second end node. | 2015-12-24 |
20150372592 | APPARATUS AND METHODS FOR LOW VOLTAGE HIGH PSRR SYSTEMS - Provided herein are apparatus and methods for low voltage high power supply rejection ratio (PSRR) systems. A charge pump converts a supply voltage to a larger charge pump voltage and provides the charge pump voltage to a circuit subsystem. The charge pump voltage is regulated to a state dependent reference. In the steady state the charge pump voltage is regulated with respect to an output voltage of the circuit subsystem; in this way PSRR of the circuit subsystem is enhanced. | 2015-12-24 |
20150372593 | AVERAGE CURRENT CONTROL FOR A SWITCHED POWER CONVERTER - A circuit for controlling a switch in a power converter in which peak current is regulated to achieve a specified average current through a load. Control logic is operable to monitor a voltage across a sensing resistor such that when the voltage across the sensing resistor reaches or exceeds a threshold value, the control logic generates a signal that causes a switch to be turned OFF. | 2015-12-24 |
20150372594 | CIRCUIT AND METHOD FOR ACTIVE CROSSTALK REDUCTION IN MULTIPLE-CHANNEL POWER SUPPLY CONTROLLERS - A comparator sense input is disconnected from a current sense resistor for the duration of a switching transition in an adjacent channel(s). Instead, the sense input receives a signal of the magnitude and the slew rate sampled prior to the transition. | 2015-12-24 |
20150372595 | ALTERNATING CURRENT INJECTION FOR CONSTANT-ON TIME BUCK CONVERTER - A REGULATOR CONTROL METHOD - The present invention discloses a voltage control method. At first, the load voltage of the load is divided to generate a feedback voltage. The feedback voltage and a triangular wave of a triangular wave periodic signal, including the positive voltage and negative voltage, are combined to generate a sum signal. The sum signal is compared with a target voltage, and when the sum signal is less than the target voltage signal, a control signal is generated to control the switches to turn on or off. Finally, the switch receives the control signal and accordingly providing an input voltage to update and stabilize the load voltage. | 2015-12-24 |
20150372596 | Maximum Power Point Tracking Controllers And Associated Systems And Methods - A maximum power point tracking controller includes an input port for electrically coupling to an electric power source, an output port for electrically coupling to a load, a control switching device, and a control subsystem. The control switching device is adapted to repeatedly switch between its conductive and non-conductive states to transfer power from the input port to the output port. The control subsystem is adapted to control switching of the control switching device to regulate a voltage across the input port, based at least in part on a signal representing current flowing out of the output port, to maximize a signal representing power out of the output port. | 2015-12-24 |
20150372597 | METHODS AND SYSTEMS FOR IMPROVING LIGHT LOAD EFFICIENCY FOR POWER STAGES OF MULTI-PHASE VOLTAGE REGULATOR CIRCUITS - Methods and systems are disclosed that may be employed to improve efficiency of smart integrated power stages (IPstages) of multi-phase VR systems while operating under relatively light, ultra-light, or partial or reduced loads. The disclosed methods and systems may be implemented to improve VR system light load efficiency by providing and enabling reduced power IPstage operating modes in one or more smart IPstage/s of a VR system, and by enabling state transition between IPstage active and reduced power operating modes such as IPstage standby and IPstage hibernation modes. | 2015-12-24 |
20150372598 | ELECTRIC POWER CONVERTER APPARATUS WHICH ATTENUATES FREQUENCY COMPONENTS OF RIPPLE IN OUTPUT CURRENT - An electric power converter apparatus incorporates a plurality of electric power converter circuits having respective output terminals connected in common, with output power being produced from the common output terminals. Each converter circuit uses an identical switching frequency, in executing power conversion based on PWM control of switching by a plurality of switching elements. The switching operations of the respective converter circuits mutually differ in phase, by an amount determined in accordance with the currently applied PWM duty ratio. The phase difference value is predetermined for minimizing the amplitude of specific harmonic frequency components of a ripple current component in the output current from the apparatus. | 2015-12-24 |
20150372599 | VOLTAGE CONVERTING CONTROLLER, VOLTAGE CONVERTING CIRCUIT, AND CONTROL METHOD FOR VOLTAGE CONVERTING - A voltage converting controller. When output current increases from a first current value to a second current value, the voltage converting controller temporarily sets a control frequency to a maximum frequency value. After a period of time, the voltage converting controller sets the control frequency to a target control frequency corresponding to the second current value. And, when the output current increases from the first current value to the second current value, the voltage converting controller temporarily sets a secondary-side output voltage to an transient output value; and after a period of time, the voltage converting controller sets a steady state value of the secondary-side output voltage to an output voltage steady state value corresponding to the second current value. | 2015-12-24 |
20150372600 | CONVERTER AND METHOD FOR CONTROLLING THE SAME - A method for controlling converter such as a Flyback converter is disclosed. A load of the Flyback converter varies between zero and a peak value. The method includes: a load detecting step for detecting the load; and an operating mode control step for controlling the Flyback converter to switch between two or more of a continuous conduction mode, a valley conduction mode and a burst mode according to the load. A converter such as a Flyback converter is also provided. | 2015-12-24 |
20150372601 | POWER SUPPLY SYSTEM AND SHORT CIRCUIT AND/OR BAD CONNECTION DETECTION METHOD THEREOF, AND POWER CONVERTER THEREOF - The present invention discloses a short circuit and/or bad connection detection method for use in a power supply system. The power supply system includes a power converter which converts an input voltage to an output voltage and supplies an output current to an electronic device. In the short circuit detection method, the conversion from the input voltage to the output voltage is disabled in a disable time period, and whether a short circuit occurs is determined according to the decreasing speed of the output voltage. In the bad connection detection method, an actual voltage and an actual current received by the electronic device are compared with the output voltage and the output current, to determine whether a bad connection occurs. | 2015-12-24 |
20150372602 | VOLTAGE CONVERTING CONTROLLER, VOLTAGE CONVERTING CIRCUIT, AND CONTROL METHOD FOR VOLTAGE CONVERTING - A voltage converting controller, in which when an output current increases from a first current value to a second current value, the voltage converting controller temporarily sets a control frequency to a maximum frequency value; and after a period of time, sets the control frequency to a target control frequency corresponding to the second current value. In addition, when the output current increases from the first current value to the second current value, the voltage converting controller temporarily sets a secondary-side output voltage to an transient output value; and after a period of time, sets a steady state value of the secondary-side output voltage to an output voltage steady state value corresponding to the second current value. | 2015-12-24 |
20150372603 | FLYBACK POWER SUPPLY CIRCUIT WITH PROGRAMMABLE FUNCTION AND CONTROL METHOD THEREOF - The present invention discloses a flyback power supply circuit with a programmable function and a control method thereof. The flyback power supply circuit includes: a transformer circuit, a power switch circuit, a primary side control circuit, an opto-coupler circuit, and a secondary side control circuit. The primary side control circuit determines whether an over voltage condition occurs, and further determines whether to generate an over voltage protection signal to turn OFF a power switch of the power switch circuit according to a rate of increase of a feedback signal and a control level, or according to the rate of increase of the feedback signal and a rate of change of a target control signal. | 2015-12-24 |
20150372604 | TECHNIQUES FOR CONTROLLING A POWER CONVERTER USING MULTIPLE CONTROLLERS - A power converter controller includes a primary controller coupled to operate in a first mode to control a power switch with a primary switching pattern. A secondary controller is galvanically isolated from the primary controller. The secondary controller is coupled to initiate a transition operation with the primary controller to take control of the power switch with one or more control signals through a communication link. The primary controller is coupled to acknowledge receipt of the one or more control signals to the secondary controller and transition from the first mode to a second mode. | 2015-12-24 |
20150372605 | CONTROLLING A SWITCHED MODE POWER SUPPLY WITH MAXIMISED POWER EFFICIENCY - A control circuit operable to generate a control signal to control the duty cycle of a switched mode power supply is provided. The control circuit comprises an input terminal for receiving a signal indicative of an input voltage (V | 2015-12-24 |
20150372606 | Control Device of DC-DC Converter - An object is to suppress deterioration of a high-voltage side battery regardless of the magnitude of a load current. Provided is a control device of a DC-DC converter that is constituted by a primary side circuit that is electrically connected between an input side and a transformer, and a secondary side circuit that is electrically connected between an output side and the transformer. The control device includes a command generating unit | 2015-12-24 |
20150372607 | PARALLEL RESONANT CONVERTER CIRCUIT WITH CURRENT-EQUALIZATION FUNCTION - A parallel resonant converter circuit with current-equalization function includes a power input terminal, a power output terminal, an output capacitor, first and second resonant converters and a third transformer. The first resonant converter is electrically coupled between the power input terminal and the output capacitor/power output terminal. The first resonant converter includes a first transformer. The second resonant converter is electrically coupled between the power input terminal and the output capacitor. The first resonant converter and the second resonant converter are coupled in parallel. The second resonant converter includes a second transformer. The third transformer includes a first coil winding set and a second coil winding set. The first coil winding set is electrically coupled between the power input terminal and the first transformer in series. The second coil winding set is electrically coupled between the power input terminal and the second transformer in series. | 2015-12-24 |
20150372608 | METHODS AND APPARATUS FOR SUPPLYING THREE PHASE POWER - The present invention provides methods and apparatus for converting a single phase power supply source into a three phase power supply source. The single phase power supply source is utilized as a first output of the three phase power supply source, while the second and third outputs of the three phase power supply source are created utilizing part of the single phase power supply source combined with a phase shifting inverting circuit. | 2015-12-24 |
20150372609 | CAPACITOR MODULE AND MATRIX CONVERTOR - A capacitor module applicable in a matrix convertor includes a module cover and a plurality of terminals. The module cover houses a plurality of AC capacitors. The plurality of terminals are disposed at least on a first side and a second side of the module cover in a widthwise direction of the module cover, and protrude from a bottom surface of the module cover. | 2015-12-24 |
20150372610 | MATRIX CONVERTER - Disclosed is a matrix converter that directly converts input three-phase AC power into three-phase AC power and outputs the converted three-phase AC power to a load. The matrix converter includes: a bidirectional switch circuit that switches on or off the supply of the three-phase AC power to the load; and a controller that performs different virtual AC/DC conversion processes according to a plurality of modes which are divided depending on magnitude correlation between respective phase voltages in the input three-phase AC power, with respect to the input three-phase AC power, selects two phases from the input three-phase AC power, and generates switching patterns of the bidirectional switch circuit so as to perform the different DC/AC conversion processes according to the plurality of modes with respect to line voltages of the two selected phases. | 2015-12-24 |
20150372611 | MODULAR HIGH-FREQUENCY CONVERTER, AND METHOD FOR OPERATING SAME - A converter includes multiple submodules that are serially connected on the input side to a DC power supply circuit via an inductor. Each submodule has an input-side half bridge and an at least single-phase output-side full bridge and an intermediate circuit capacitor connecting the half bridge and the full bridge forming an intermediate DC voltage circuit. According to the method, the submodules are alternately connected to the power supply circuit, thereby also connecting the intermediate circuit capacitor of the respective connected submodule to the power supply circuit, and the intermediate circuit voltage dropping across the respective intermediate circuit capacitor of each submodule is measured. The submodule to be connected is selected according to the voltage deviation of the corresponding intermediate circuit voltage from a specified target voltage value. | 2015-12-24 |
20150372612 | CONVERTER CELL WITH REDUCED POWER LOSSES, HIGH VOLTAGE MULTILEVEL CONVERTER AND ASSOCIATED METHOD - It is presented a converter cell ( | 2015-12-24 |
20150372613 | VOLTAGE CONVERTERS AND METHODS FOR USE THEREWITH - A voltage error signal V | 2015-12-24 |
20150372614 | AC-DC CONVERTER - An AC to DC converter is provided with: a rectifier circuit that rectifies an AC voltage generated by an AC voltage source; and a plurality of switching units that collectively receive an output voltage of the rectifier circuit through an inductor, and that are connected in series at an input side, each of the switching units having a semiconductor switching device, a diode, and a capacitor, and performing ON/OFF switching of the semiconductor switching device provided therein to step up a voltage received from the rectifier circuit, each of the switching units supplying the stepped-up voltage to the capacitor through the diode so that a resulting DC across the capacitor can be provided, as a DC output voltage of the switching unit, to a respective load to be connected to terminals of the capacitor. | 2015-12-24 |
20150372615 | CIRCUITS AND METHODS FOR PHOTOVOLTAIC INVERTERS - Circuits and methods for photovoltaic inverters are provided. In some embodiments, a power inverter circuit is provided, the inverter comprising: an input terminal for a direct current source coupled to a first conductor; a first side of a capacitor coupled to the input terminal; a second input terminal for the direct current source coupled to first sides of a first switch and second switch; a second side of the capacitor coupled to first sides of a third switch and fourth switch; a first side of a first inductor coupled to the first input terminal, the first side of the capacitor and the first conductor; a second side of the first inductor coupled to second sides of the first switch and third switch; and a first side of a second inductor coupled to a second conductor, and second sides of the second switch and fourth switch. | 2015-12-24 |
20150372616 | Rectifier with Bridge Circuit and Parallel Resonant Circuit - A rectifier circuit includes a bridge circuit configured to receive an alternating input signal. A parallel resonant circuit is coupled between the bridge circuit and an output. The circuit could also include a capacitive storage element coupled to the output and configured to provide an output signal. | 2015-12-24 |
20150372617 | MINIATURE MEMS ACTUATOR ASSEMBLIES - In one embodiment, an electrostatic actuator includes a generally planar fixed frame, a generally planar moving frame coupled to the fixed frame by a flexure for substantially coplanar, perpendicular movement relative to the fixed frame, a plurality of interdigitated teeth, a fixed portion of which is attached to the fixed frame and a moving portion of which is attached to the moving frame, and an elongated output shaft having opposite input and output ends, the input end being coupled to the moving frame. | 2015-12-24 |
20150372618 | ELECTROMECHANICAL TRANSDUCER DEVICE AND ANALYTE INFORMATION ACQUIRING APPARATUS - To suggest an electromechanical transducer device with a high S/N ratio, an electromechanical transducer device includes a first substrate; electromechanical transducer elements two-dimensionally arrayed on a front surface of the first substrate and configured to provide conversion between acoustic waves and electric signals; an electric wiring substrate that is a second substrate electrically connected with a back surface of the first substrate; a first acoustic matching layer provided between the first substrate and the second substrate; an acoustic attenuating member arranged on a back surface of the second substrate; and a second acoustic matching layer provided between the second substrate and the acoustic attenuating member. | 2015-12-24 |
20150372619 | FLOATING OFF-SHORE POWER GENERATION APPARATUS USING IONIC POLYMERIC METAL COMPOSITE - The present invention relates to a floating offshore power generation apparatus using an ionic polymer-metal composite, including: a floating body floating on water; an ionic polymer-metal composite that is attached to the floating body and generates electricity by bending in a vertical or horizontal direction according to the flowing state of sea water; a rectification unit that converts, into a direct electric current, the electricity generated in the form of an alternating electric current in the ion polymeric metal composite; and a load unit that is connected to the rectification unit and supplies or stores the produced electricity. According to the present invention, ionic polymer-metal composites having hydrophilicity are attached to one floating body instead of complicated mechanical parts vulnerable to the offshore environment, thereby facilitating maintenance and increasing power generation efficiency per unit area. | 2015-12-24 |
20150372620 | INTEGRATED MICRO/NANOGENERATOR AND METHOD OF FABRICATING THE SAME - The present disclosure discloses an integrated micro/nanogenerator and a method of fabricating the same The integrated micro/nanogenerator has a structure comprising a conducting layer, a PET layer, a PDMS layer, a micro-nano hierarchical PDMS array and a metal film layer, the conducting layer being manufactured on a surface of the PET layer, the PET layer being made of polyethylene terephthalate; the PDMS layer being made of polydimethylsiloxane, and the micro-nano hierarchical PDMS array being manufactured on a surface of the PDMS layer. The method comprises steps of: 1) fabricating a micro-scale structure on a substrate through a combination of lithography and chemical etching or physical etching; 2) fabricating a nano-scale structure with high density and high depth-to-width ratio directly on a surface of the micro-scale structure through a mask-free optimized deep reactive ion etching process; 3) using a PDMS casting film transfer process by adjusting and controlling process parameters, by means of using the mold of mirco-nano hierarchical array structure as a template; 4) fabricating a conducting layer on a surface of the PET layer by using an evaporation or sputtering or chemical vapor deposition process; 5) bonding the PDMS layer and the PET layer through high temperature bonding or normal temperature physical pressing; and 6) assembling in sequence and packaging the bonded structure obtained in step 5), the metal film layer, and another bonded structure obtained in step 5). | 2015-12-24 |
20150372621 | System for Converting Electromagnetic Radiation to Electrical Energy Using Metamaterials - Spectral tuning of heat source to emit radiation at a desired frequency or frequency band is accomplished using metamaterials. The metamaterials include a structured geometry having holes with dimensions and spacing chosen such that the resulting surface will emit radiation in the desired spectrum. A collector can be made of a similar metamaterial or antenna array to detect the emitted radiation and transfer it to a converter device that converts the detected radiation to electricity. Embodiments also provide efficient coupling to the converter device for energy harvesting. Cooling of the converter devices can be accomplished using a cooling sink or deep space. | 2015-12-24 |
20150372622 | METHOD AND INTEGRATED MOTOR DRIVE POWER ELECTRONICS SYSTEM WITH IMPROVED EFFICIENCY - Embodiments of an integrated motor drive power electronics system are generally described herein. In some embodiments, the integrated motor drive power electronics system includes an active line filter (ALF) configured to control and regulate current drawn from an input power source and to attenuate current ripple fed back to the input power source, an energy storage capacitance coupled to an output of the active line filter, and a bidirectional low voltage power supply (LVPS). In some embodiments, the bidirectional LVPS may provide regulated power to a load and may selectively recycle power back to the input power source and regulate voltage at the load to a predetermined output voltage. In some embodiments, the energy storage capacitance may serve as a local input power source for higher power motor drive electronics and the bidirectional LVPS. | 2015-12-24 |
20150372623 | DECOUPLING CURRENT CONTROL UTILIZING DIRECT PLANT MODIFICATION IN ELECTRIC POWER STEERING SYSTEM - A method of controlling an electric motor that generates an output current from an input voltage command that includes a sum of a first voltage command and a second voltage command is provided. The method receives the output current from the motor as a feedback. The method determines a first set of gain factors to generate the first voltage command based on the feedback such that the input voltage command causes the motor to generate the output current with reduced influence of variations of a set of operating parameters of the motor. The method determines a difference between the feedback and a desired current. The method determines a second set of gain factors to generate the second voltage command based on the difference such that the input voltage command causes the motor to generate the output current as a first, second or higher order response. | 2015-12-24 |
20150372624 | ELECTRIC MOTOR CONTROL SYSTEM - An electric motor control system includes an inverter, an element temperature observation data acquiring device, a rotational speed upper limit setting device, and a rotational speed limiter. The inverter includes switching elements. The element temperature observation data acquiring device is configured to acquire element temperature observation data indicating an observation value of a temperature of the switching elements of the inverter. The rotational speed upper limit setting device is configured to set a rotational speed upper limit of an electric motor in accordance with the observation value of the temperature of the switching elements so as to satisfy a first condition that a voltage applicable to the switching elements in a case where the electric motor is operated at the rotational speed upper limit is lower than or equal to a withstand voltage of the switching elements. | 2015-12-24 |
20150372625 | SYSTEM FOR SUPPLYING ELECTRICAL POWER TO A LOAD AND CORRESPONDING POWER SUPPLY METHOD - This system for supplying electrical power to a load includes an asynchronous generator including a cage rotor intended to be driven by motor means and a rectifier adapted to rectify the voltage delivered by the generator. The rectifier is a rectifier employing unidirectional electronic components. The power supply system further includes a reactive power source for magnetizing the asynchronous generator. | 2015-12-24 |
20150372626 | VOLTAGE ADJUSTMENT FOR AN ENERGY HARVESTER - An arrangement for voltage adjustment for an energy harvester comprises: a first input terminal and a second input terminal adapted to receive a AC voltage therebetween, the AC voltage having an input magnitude, the AC voltage being supplied at an inductance; a switch module connected between the first input terminal and the second input terminal for controllably connecting the first input terminal with the second input terminal; and a controller adapted to receive an input signal indicative of the input magnitude of the voltage, and to control the switch module to operate selectively in a first mode or a second mode depending on the input magnitude, in order to adjust the voltage to have an output magnitude in a predetermined range. | 2015-12-24 |
20150372627 | APPARATUS AND METHOD FOR CONTROLLING TEMPERATURE CHANGE IN MOTOR - An apparatus for controlling a temperature change in a motor may include a rotor resistance estimator calculating a rotor resistance estimation value of the motor utilizing a DQ-axis voltage command value and a coordinate conversion DQ-axis current value, a synchronous angle estimator estimating a synchronous angle utilizing the rotor resistance estimation value, a rotor angular velocity of the motor and a DQ-axis current command value, a coordinate converter creating the coordinate conversion DQ-axis current value utilizing the synchronous angle and a sensing current value, a current controller creating the DQ-axis voltage command value utilizing the the DQ-axis current command value and the coordinate conversion DQ-axis current value, and a power conversion unit converting the power according to the DQ-axis voltage command value and supplying the converted power to the motor. | 2015-12-24 |
20150372628 | INDUCTION MOTOR CONTROL APPARATUS AND INDUCTION MOTOR CONTROL METHOD - An induction motor control apparatus controls an induction motor connected to drive wheels by setting a motor torque command value on the basis of vehicle information. The induction motor control apparatus calculates a first torque current command value and a first excitation current command value on the basis of the motor torque command value and estimates a rotor magnetic flux on the basis of the first excitation current command value. The induction motor control apparatus calculates a first torque command value on the basis of an estimated value of the rotor magnetic flux and the first torque current command value. Further the induction motor control apparatus calculates a second torque command value by applying filter processing to the first torque command value, a natural vibration frequency component of a drive shaft torque transmission system in a vehicle being removed in the filter processing. Then the induction motor control apparatus controls drive of the induction motor on the basis of the first excitation current command value and the second torque current command value. | 2015-12-24 |
20150372629 | SYSTEM, METHOD AND APPARATUS OF SENSOR-LESS FIELD ORIENTED CONTROL FOR PERMANENT MAGNET MOTOR - A sensor-less control system, a method and an apparatus of sensor-less field oriented control for permanent magnet motors are provided. The sensor-less control system includes a Clarke transform module, a Park transform module and an angle estimation module. The Clarke transform module generates orthogonal current signals in accordance with motor phase currents. The Park transform module generates a current signal in response to the orthogonal current signals and an angle signal. The angle estimation module generates the angle signal in response to the current signal. The angle signal is related to a commutation angle of the permanent magnet motor. The current signal is controlled approximate to zero. The angle signal associated with an angle-shift signal is configured to generate three phase motor voltages. | 2015-12-24 |
20150372630 | FAN MOTOR DRIVE DEVICE AND BLOWER DEVICE - A fan motor drive device configured to drive a fan with a motor includes a position speed estimating calculator configured to calculate estimated values of a rotation angle and a rotation speed of the motor, a multiplier configured to calculate a control target value by multiplying the rotation speed calculated in the position speed estimating calculator and a flow coefficient, and a current vector controller configured to control a drive current of the motor by feedback control based on the control target value. A rotor magnetic flux intensity of the motor is calculated based on at least a drive current obtained by a current sensor and the rotation angle obtained from the position speed estimating calculator, and a control value used in driving the motor is changed by the rotor magnetic flux intensity thus calculated. | 2015-12-24 |
20150372631 | MOTOR FAULT DETECTOR - A motor control circuit includes a processor configured to calculate a plurality of motor impedances from measurements of an excitation voltage on a power bus to a motor and measurements of a plurality of currents through the motor resulting from the excitation voltage, and the processor configured to calculate individual winding inductances in the motor, based on the measured motor impedances, and configured to determine whether there is an inter-turn winding fault based on the calculated individual winding inductances. | 2015-12-24 |
20150372632 | ELECTRIC VEHICLE - An electric vehicle includes an electric motor, a transmission, a drive unit, a converter, and an electronic control unit. The transmission is provided in a power transmission path between a rotary shaft of the electric motor and drive wheels of the electric vehicle. The drive unit is configured to drive the electric motor. The converter is configured to regulate a voltage supplied to the drive unit. The electronic control unit is configured to control the converter, and determine the voltage regulated by the converter, based on a first quantity of state associated with torque of an output shaft of the transmission, and a second quantity of state associated with a rotational speed of the output shaft. | 2015-12-24 |
20150372633 | POWER TOOL - A hammer drill ( | 2015-12-24 |
20150372634 | LATERAL PHOTOVOLTAIC DEVICE FOR NEAR FIELD USE - A device, method and process of fabricating an interdigitated multicell thermo-photo-voltaic component that is particularly efficient for generating electrical energy from photons in the red and near-infrared spectrum received from a heat source in the near field. Where the absorbing region is germanium, the device is capable of generating electrical energy by absorbing photon energy in the greater than 0.67 electron volt range corresponding to radiation in the infrared and near-infrared spectrum. Use of germanium semiconductor material provides a good match for converting energy from a low temperature heat source. The side that is opposite the photon receiving side of the device includes metal interconnections and dielectric material which provide an excellent back surface reflector for recycling below band photons back to the emitter. Multiple cells may be fabricated and interconnected as a monolithic large scale array for improved performance. | 2015-12-24 |
20150372635 | MODULAR ROOF MOUNTING SYSTEM FOR PHOTOVOLTAIC PANELS - A Modular Roof Mounting System utilizes an assembly Jig that makes assembly of the structural units very easy and repeatable. The assembly Jig incorporates a photovoltaic panel mounting frame that the structure is required to support. In addition to the photovoltaic panel mounting frame it includes only two low cost universal components: two South rail locators and two North rail locators. The North and South rail locators are attached to the mounting holes in the panel frame, two on the South edge and two on the North, and produce a rail spacing that lines up with the same holes. The North Rail Locators have additional locating features to position the cross beams. Using a photovoltaic panel mounting frame to create a Jig that automatically determines the configuration of the Precision-Modular assembly and requires no adjustments and allows for the assembly of mounting structures for various photovoltaic panel geometries. | 2015-12-24 |