35th week of 2015 patent applcation highlights part 65 |
Patent application number | Title | Published |
20150244199 | WIRELESS CHARGER AND MULTI-TERMINAL WIRELESS CHARGING METHOD - The present invention provides a wireless charger, comprising: a controller used for determining the priorities of at least two terminals in a wireless charging region of the wireless charger, and distributing charging electric energy to the at least two terminals according to the priorities. The present invention further provides a multi-terminal wireless charging method. With the technical schemes of the present invention, when a plurality of terminals are wirelessly charged at the same time, the distribution of electric energy can be optimized, thus improving the charging efficiency. | 2015-08-27 |
20150244200 | METHOD FOR PERFORMING WIRELESS CHARGING CONTROL OF AN ELECTRONIC DEVICE WITH AID OF FREQUENCY DETECTION, AND ASSOCIATED APPARATUS - A method for performing wireless charging control of an electronic device and an associated apparatus are provided, where the method includes the steps of: performing at least one frequency detection operation according to at least one signal of the electronic device to generate at least one detection result; and determining a specific set of program codes within a plurality of sets of program codes to be an active set of program codes according to the aforementioned at least one detection result, and loading the specific set of program codes from a non-volatile (NV) memory of the electronic device, to control wireless charging operations of the electronic device. For example, the aforementioned at least one signal of the electronic device can be at least one induced signal of a power input coil of the electronic device or at least one derivative of the aforementioned at least one induced signal. | 2015-08-27 |
20150244201 | Method of Handling Wireless Charging Authentication - A method of handling wireless charging authentication for an electronic device of a wireless charging system includes sending a first message to a controller of the wireless charging system to notify the controller that an authentication is required by a wireless charger of the wireless charging system; receiving a second message including authentication information from the controller; and sending a third message including the authentication information to the wireless charger, in order to satisfy the authentication. | 2015-08-27 |
20150244202 | VEHICULAR ELECTRICAL ARCHITECTURE OF BOTH WIRELESS POWER AND COMMUNICATION PERIPHERALS USING MRC - A system for providing power signals to peripheral devices on a vehicle using magnetic resonance coupling. The system includes a transmitter circuit having a variable current source, a base coil and a variable capacitor, where the current source and the capacitor are tuned to provide a predetermined AC current to the base coil so as to generate an oscillating magnetic field at a predetermined frequency. The system also includes a receiver circuit for each peripheral device, where each receiver circuit includes a receiver coil and a rechargeable power source. When the base coil is tuned to the receiver coil the power source can be recharged through magnetic resonance coupling to power the device. The transmitter circuit can be on the vehicle or can be separate from the vehicle, such as in a charging pad. | 2015-08-27 |
20150244203 | Wireless Charging Coil - A wireless charging coil is provided herein. More specifically, provided herein is a wireless charging coil comprising a first stamped coil having a first spiral trace, the first spiral trace defining a first space between windings, and a second stamped coil having a second spiral trace, the second spiral trace defining a second space between windings, the first stamped coil and second stamped coil in co-planar relation, the first stamped coil positioned within the second space of the second stamped coil, and the second stamped coil positioned within the first space of the first stamped coil, the first and second coils electronically connected and an adhesive covering and surrounding the first stamped coil and the second stamped coil to bond the coils together and to insulate the coils. | 2015-08-27 |
20150244204 | WIRELESS POWER MULTI-CHARGING METHOD AND POWER TRANSMITTER - A power transmitter and method are provided for wireless multi-charging. A power transmitter includes a resonator configured to wirelessly transmit power to one or more power receivers; and a controller configured to increase a transmission power of the resonator to charge a first power receiver when the first power receiver is located in a charging area of the resonator; decrease the transmission power of the resonator when a second power receiver is located in the charging area of the resonator; and increase the transmission power of the resonator to charge both of the first power receiver and the second power receiver. | 2015-08-27 |
20150244205 | Energy Supply - The invention is an energy supply for a field device that can be operated at a normal voltage, comprising the first energy supply having variable output voltage for the field device, an energy store, which can be charged by means of a charging circuit, which is arranged between the first energy supply and the energy store, wherein a first state, in which the output voltage is above a predetermined value, the charging circuit is switched in such a way that the field device is operated by means of the first energy supply and the energy store is charged, and in a second state, in which the output voltage is below the predetermined value, the charging circuit is switched in such a way that the field device is supplied by means of the first energy supply and the energy store. | 2015-08-27 |
20150244206 | 3-WIRE TRANSFORMER-FREE UPS SYSTEM AND METHOD OF CONTROL TO REDUCE COMMON MODE CURRENT - A common mode choke in a 3-wire transformer free UPS system with which different rectifier and bypass power sources are used is eliminated by using different types of PWM control depending on whether the inverter is paralleled with the bypass power source. When the inverter is paralleled with the bypass power source, a type of PWM control is used that does not have common mode voltage injection. When the inverter is not paralleled with the bypass power source, a type of PWM control is used that has common mode voltage injection. In an aspect, the PWM control that does not have common mode voltage injection is sine-triangle PWM and the PWM control that has common mode voltage injection is space-vector PWM. | 2015-08-27 |
20150244207 | DC/DC CONVERTER, METHOD OF CONTROLLING THE DC/DC CONVERTER AND DATA STORAGE APPARATUS - According to one embodiment, a DC/DC converter is supplied with a DC power supply voltage from a main power supply, or a backup voltage from a backup power supply, converts the DC power supply voltage to a DC conversion voltage or converts the backup voltage to a backup conversion voltage, and supplies the DC conversion voltage or the backup conversion voltage to a load. The converter includes a stop function for stopping the conversion operation of the DC power supply voltage in the converter part when the DC power supply voltage has lowered to less than a certain threshold voltage. This stop function is disabled when a backup power is supplied, and the converter continues the conversion operation of the backup voltage. | 2015-08-27 |
20150244208 | ENERGY MANAGEMENT APPARATUS AND METHOD OF CONTROLLING THE SAME - An energy management apparatus capable of taking an appropriate measure in the event of a power failure and a method of controlling the energy management system will be provided. A storage medium | 2015-08-27 |
20150244209 | ISLANDED OPERATING SYSTEM - The invention includes: charging/discharging devices including storage batteries and having a grid-connected function to perform charging/discharging operations on an electric power system and an islanded-operation function to supply the electric power system with a constant-voltage constant-frequency electric power; a monitor detects an electric power state of the charging/discharging device and to transmit detection output to the charging/discharging device; and a switching unit connects and disconnects commercial power source to and from electric power system. When a commercial power source is normal, the switching unit connects the commercial power source to the electric power system and charging/discharging devices establish a grid connection. When commercial power source fails, switching unit disconnects commercial power source from electric power system, charging/discharging device performs an islanded operation, and charging/discharging device performs a charging/discharging operation according to a detection output of monitor and performs control so that islanded operation electric power of charging/discharging device becomes constant. | 2015-08-27 |
20150244210 | REDUNDANT UNINTERRUPTIBLE POWER SUPPLY SYSTEMS - A system is provided. The system includes a plurality of uninterruptible power supplies (UPSs), a ring bus, at least one load electrically coupled to the plurality of UPSs and the ring bus, and a controller communicatively coupled to the plurality of UPSs. The controller is configured to calculate a phase angle for each UPS of the plurality of UPSs, wherein the phase angle is calculated relative to a common reference angle, and control operation of each UPS based on the respective calculated phase angles. | 2015-08-27 |
20150244211 | Switching Systems and Methods for Use in Uninterruptible Power Supplies - An uninterruptible power supply for providing an output power signal to a load has a ferroresonant transformer, a resonant capacitor operatively connected to the ferroresonant transformer, and an inverter operatively connected to the ferroresonant transformer. The inverter is configured to generate the output power signal based on at least one inverter control signal such that the output power signal is a quasi square wave having a first change of phase, an upper limit, and a second change of phase. The at least one inverter control signal is pulse-width modulated between the first change of phase and the upper limit, pulse-width modulated between the upper limit and the second change of phase, and held in an ON state when the output power signal is at the upper limit. | 2015-08-27 |
20150244212 | Uninterruptible Power Supply Systems and Methods for Communication Systems - An uninterruptible power supply to be connected between an AC line and a load has a battery system, an inverter, a transformer, and a controller. The battery system stores battery power. The inverter is operatively connected to the battery system. The transformer comprises a primary winding adapted to be connected to the AC line, a load winding adapted to be connected to the load, and an inverter winding operatively connected to the inverter. The controller controls the inverter to operate in a first mode in which the inverter supplies power to the battery system, a second mode in which the inverter supplies power to the load winding using battery power stored in the battery system, and a third mode in which the inverter supplies power to the primary winding using battery power stored in the battery system. | 2015-08-27 |
20150244213 | THIN AXIAL GAP MOTOR - A thin axial gap motor includes: a base, a circuit unit installed on the base; a stator module including at least one flat permeable frame and at least one winding, and the permeable frame having at least one support arm and an induced magnetic part connected to the at least one support arm, and the winding being wound around the support arm; a rotor module including a flat permanent magnet installed at the top of the induced magnetic parts and having an orthographic projection range corresponsive to the area of the induced magnetic part, and the at least one winding being disposed on an outer side of the permanent magnet; and a pivoting element installed between the base and the rotor module and including a bearing housing and a spindle plugged into the bearing housing for rotating the rotor module with respect to the base. | 2015-08-27 |
20150244214 | COMPONENT, ELECTRIC MACHINE AND ASSOCIATED METHOD - According to an embodiment of the present invention, a component for an electric machine, for example, an interlocking stator, rotor, armature or exciter, for use in an electric machine prepared by a process is provided. The process by which the component is prepared includes the steps of applying a first material to a first portion of a first surface to form a first stator lamination and applying the first material to a second portion of a first surface, spaced from the first portion, to form a first rotor lamination. The process by which the component is prepared further includes the steps of orienting the grains of the first material, applying a second material to the first portion of the first material, applying a second material to the second portion of the first material, and bonding the second material to the first material. | 2015-08-27 |
20150244215 | PERMANENT MAGNET EMBEDDED TYPE ROTOR OF ELECTRIC ROTATING MACHINE AND ELECTRIC ROTATING MACHINE - An outer edge of a first through hole near an outer periphery of a first core plate is closer to a permanent magnet than an outer edge of a second through hole near an outer periphery of a second core plate. Further, a second bridge length is less than a first bridge length. | 2015-08-27 |
20150244216 | POWER GENERATOR - Disclosed is a generator wherein a rotary shaft is rotatably supported by a rotary shaft rest, and an inner casing is formed in a cylindrical hollow shape in such a way that one side thereof is fixedly engaged to the rotary shaft, thus rotating by the rotary shaft, and another side thereof is engaged to a rotary shaft rest by an inner casing engaging support member which includes a thrust bearing, and a plurality of through holes and ventilation holes are formed at the side surfaces and outer circumferential surfaces of the inner casing and the outer casing. | 2015-08-27 |
20150244217 | ROTOR OF ELECTRIC MOTOR WITH MAGNETS ATTACHED TO OUTER CIRCUMFERENTIAL SURFACE OF ROTOR CORE, ELECTRIC MOTOR, AND METHOD OF PRODUCING ROTOR OF ELECTRIC MOTOR - A rotor of the present invention comprises a cylindrically shaped rotor core, and a plurality of magnets arranged at predetermined intervals at an outer circumferential surface of the rotor core. The outer circumferential surface of the rotor core is formed with a plurality of projections for positioning the plurality of magnets in the circumferential direction, and each of the projections extends over only part of outer circumferential surface of the rotor core in the height direction. The rotor core includes a projection-equipped cylindrical part which has an outer circumferential surface over which the plurality of projections extend, and a projection-less cylindrical part which has an outer circumferential surface over which the plurality of projections do not extend. | 2015-08-27 |
20150244218 | ROTOR FOR A PERMANENT MAGNET ELECTRIC MACHINE AND USE THEREOF | 2015-08-27 |
20150244219 | ASYMMETRIC MACHINES - A rotor for an axial flux permanent magnet machine is described. The machine has a stator comprising a stator housing enclosing a set of coils wound on stator bars or teeth and disposed circumferentially at intervals about an axis on the machine, and a rotor bearing a set of permanent magnets and mounted for rotation about the said axis. The rotor and stator are spaced apart along said axis to define a gap therebetween in which magnet flux in the machine is generally in an axial direction. The magnets are disposed circumferentially around said rotor and define a plurality, n, of matching sets of magnets. Each set of magnets includes a plurality of magnets, wherein said n sets of magnets on said rotor have n-fold rotational symmetry. Within a said set, the magnets have different shapes and/or relative circumferential spacings of adjacent magnets within the set of magnets are irregular. | 2015-08-27 |
20150244220 | Modular Micro Wind Turbine - An improved magnetic generator has been developed that is particularly suitable for creating modular micro wind turbines, although other power generation applications are contemplated. The generator utilizes a series of rotors with axially aligned magnets on each side of the rotor face. As a drive shaft rotates the rotors in proximity to stators, a magnetic flux and electricity is generated. In certain embodiments, the rotors utilize magnet pockets to stabilize the magnets. In the preferred embodiments, layers of magnets are placed in each magnet pocket to achieve magnetic amplification by having multiple magnets, and their respective fluxes, influence the stators. | 2015-08-27 |
20150244221 | ELECTRIC GENERATOR HAVING MULTIPLE ELECTRICAL MACHINES - The invention concerns an electric generator ( | 2015-08-27 |
20150244222 | ACTIVE ASSEMBLY OF A WIND TURBINE ROTATING ELECTRIC MACHINE - An active assembly of a wind turbine rotating electric machine has a magnetic guide having at least two slots separated by a tooth with a plane of symmetry; and a coil formed by a plurality of electric conductors, each with a substantially rectangular cross section and wound repeatedly about the tooth to fill the slots and form two heads close to the opposite ends of the tooth; the width of each electric conductor being less than a third of the distance between the electric conductor and the plane of symmetry. | 2015-08-27 |
20150244223 | SEPARATED COOLANT CIRCULATION STRUCTURE FOR WATER-COOLED POWER GENERATOR AND COOLING METHOD THEREOF - A separated coolant circulation structure for a water-cooled power generator includes a cooling circulation channel for a stator bar to cool heat of a stator bar winding, and a cooling circulation channel for a connector ring to heat of a connector ring, wherein the cooling circulation channel for the stator bar and the cooling circulation channel for the connector ring form separate coolant supply paths to improve cooling efficiency and reduce a pump load. | 2015-08-27 |
20150244224 | ELECTRIC MOTOR - When teeth ( | 2015-08-27 |
20150244225 | METHOD OF MANUFACTURING ROTOR COIL AND ROTARY ELECTRICAL MACHINE - A method of manufacturing a rotor coil of to an embodiment includes preparing a wire strand bundling a plurality of wires and a reinforcing member configured to reinforce the wire strand; arranging the wire strand and the reinforcing member to bring an end of the wire strand and an end of the reinforcing member into contact with each other, the wire strand being arranged to have a longitudinal direction perpendicular to a boundary between the wire strand and the reinforcing member and to include the plurality of wires with an inclined longitudinal direction thereof on a first outer surface inclining with respect to the longitudinal direction of the wire strand; rotary driving a tool at the boundary on the first outer surface so as to enter the boundary; and moving the rotary driven tool on the boundary along the first outer surface. | 2015-08-27 |
20150244226 | ELECTRIC TOOL - An electric tool includes a brushless motor having a plurality of phases, the brushless motor. The brushless motor includes a plurality of stator coils connected in parallel with each of the plurality of phases, and a plurality of crossover wires, each of the crossover wires being configured to electrically connect the plurality of stator coils for each of the plurality of phases to each other. The plurality of crossover wires for the plurality of phases are electrically connected to each other. | 2015-08-27 |
20150244227 | ROTARY ELECTRIC MACHINE - A rotary electric machine includes a rotor and a stator. A stator core has n in-phase slots provided in the circumferential direction and correspond to magnetic poles, and into each of which phase windings of the same phase are installed. Each of the phase windings is divided into 2n portions in an extending direction so that each of the phase windings is configured by a first partial winding, a second partial winding, . . . , and a 2n-th partial winding arranged from one end positioned in the extending direction in sequence. The first partial winding and the 2n-th partial winding are inserted into different in-phase slots of the stator core. Counted from one end positioned in the extending direction, the 2m-th (1≦m≦n) partial winding at an even-numbered position and the (2m−1)-th partial winding are inserted into different in-phase slots of the stator core. | 2015-08-27 |
20150244228 | Electric Generator and Turbine Comprising the Same - An electric generator for use with a turbine (e.g. wind turbine) is disclosed. The generator comprises a stator and a rotor mounted for rotation with respect to the stator. The rotor comprises an even number M of magnets and the stator comprises an odd number C of coils. The number M of magnets and the number C of coils are chosen such that they do not have a common divider except 1. The coils are also generally made of a large number of turns of small wires such that each coil outputs high voltage but low current. In addition, the output of each one of the coils is generally rectified individually. An electric generator assembly is also disclosed. The generator of the invention is connected to a turbine, preferably a wind turbine, for rotating the rotor of the generator. A method for producing electricity is also disclosed. | 2015-08-27 |
20150244229 | SPINDLE MOTOR - Embodiments of the invention provide a spindle motor including a stator including a base plate having a through-hole formed therein, a core provided in the base plate, and a flexible printed circuit applying a current to the core. According to at least one embodiment, the spindle motor further includes a rotor including magnet facing the core, wherein the flexible printed circuit includes a land part formed on one surface of the flexible printed circuit to allow a coil which is wound around the core to be soldered and connected thereto, and a coil leading hole formed to be in communication with the through-hole and formed at a position out of the land part to be separated. According to various embodiments, cold soldering defect and disconnection of the coil is prevented. | 2015-08-27 |
20150244230 | ALTERNATOR INCLUDING A STATOR CORE WITH SLOT LINERS - A stator core includes a plurality of stator teeth. The plurality of stator teeth defines a plurality of slots. Each of the plurality of slots includes a first side, a second side, and a base joining the first and second sides. A slot liner is arranged in at least one of the plurality of slots. The slot liner includes a first side portion, a second side portion, and a base portion. The first side portion extends from a first end to a second end joining the base portion through a first intermediate portion. The second side portion extends from a first end to a second end joining the base portion through a second intermediate portion. A bend is formed in the first intermediate portion. The bend creates a gap between the first side portion and the first side. | 2015-08-27 |
20150244231 | STATOR ARRANGEMENT - A stator arrangement for an electrical motor has several windings ( | 2015-08-27 |
20150244232 | Stator for an Electric Motor and Method for Producing the Stator - The invention relates to a process for producing a stator for an electric machine, comprising the following steps in the given sequence: Providing a cylindrical stator body having several stator slots, inserting at least one first coil in the stator slots, the first coil having a first coil end on at least one face of the stator body, and inserting the first coil end in at least one molded body for electrically insulating the first coil end. | 2015-08-27 |
20150244233 | STATOR OF ROTATING ELECTRIC MACHINE - A stator of a rotating electric machine includes plural slots disposed in a circumferential direction of a stator core, and a coil body formed by a coil that is disposed as a single conductor in the slot in the circumferential direction of a stator core and that is wound for plural turns in the slot in a radial direction of a stator core. The coil has a flat conductor section, a magnetic body layer provided around the flat conductor section, and an insulating film provided around the magnetic body layer. | 2015-08-27 |
20150244234 | ROTOR WITH END RING AND ELECTRIC MOTOR - An electric motor for high speed operation use and a rotor which enables use of common parts with electric motors for low speed operation use and which thereby enables reduction of the manufacturing costs. The rotor is provided with a shaft, a rotor core which is fastened to the shaft at the outside in the radial direction and has a first end face at one end in the axial direction and a second end face at the other end in the axial direction, a plurality of conductors which are arranged at the rotor core, and a pair of end rings which are respectively arranged adjoining the first end face and the second end face and which short-circuit the plurality of conductors with each other. The shaft has an outer circumference, while the end rings have outer circumferences which are arranged concentrically with respect to the outer circumference of the shaft. | 2015-08-27 |
20150244235 | GENERATOR - In a generator in which a stator is fixed to a housing which includes a first bracket having a bearing portion for pivotally supporting one end portion of a rotary shaft, and a second bracket covering a cooling fan that rotates with the rotary shaft, and a rotor surrounded by the stator is fixed to the rotary shaft, the stator is fixed to the first bracket, and the first bracket is integrally provided with a tubular portion which surrounds the stator permitting cooling air sucked in by the cooling fan to flow between the tubular portion and an outer periphery of the stator, and the second bracket is connected to the tubular portion. Accordingly, cost is reduced by connecting first and second brackets together without using long through-bolts, and efficiency of cooling the stator is enhanced by making the cooling air flow along the outer periphery of the stator. | 2015-08-27 |
20150244236 | ELECTROMECHANICAL STRUCTURE IMPROVEMENT DEVICE - An electromechanical structure improvement device, where a rotor taking a “U” shape is combined together through a connection, a plurality of magnetic steels are disposed on a “U”-shaped inner wall and present as an upper-and-lower corresponding relationship, the stator is disposed at a central portion of two corresponding ones of the plurality of magnetic steels, which may move in a posture cutting magnetic lines by passing double faces of a coil of the stator, whereby the efficacies of an increased power density, an enhanced electric efficiency, an increased electric dynamic energy and a promoted operational power are achieved. In addition to a single body form, at least two stators may be connected together by connecting their assemble connection portion and interconnection portion, and at least two rotors connects together, which may further connect a plurality of stator and rotor sets in series. | 2015-08-27 |
20150244237 | LINEAR MOTOR - A linear motor includes a stator, a mover that moves a subject to be moved linearly along the stator, and a multi-member spacer that is interposed between the mover and the subject to be moved. The stator includes a plurality of permanent magnets, the mover includes a plurality of coils arranged to be opposed to the permanent magnets, and the multi-member spacer includes two or more members different in thermal conductivity. | 2015-08-27 |
20150244238 | ROTARY COMPRESSOR - A rotary compressor includes a casing, an electric motor, a compression mechanism and a balance weight mechanism. The electric motor includes a stator fixed to the casing, and a rotor. The compression mechanism is connected to the electric motor via a drive shaft The balance weight mechanism is configured to cause centrifugal force to act on the drive shaft. The rotor includes a rotor core including a plurality of stacked electromagnetic steel sheets, and a rivet configured to clamp the rotor core at axial ends of the rotor core. The balance weight mechanism includes an insertion portion into which drive shaft is press fit, and a fiat portion forming a flat surface at an axial end of the drive shaft. The balance weight mechanism is disposed at an axial end portion of the rotor to cover a head of the rivet. | 2015-08-27 |
20150244239 | MODULAR ASSEMBLY OF MOTOR AND MAGNETIC BEARINGS, AND METHOD TO MANUFACTURE SUCH AN ASSEMBLY - A modular motor and magnetic bearing assembly comprising a positioning casing having a plane reference surface, an outer cylindrical reference surface, a central portion provided on an outer face with cooling liquid flow channels, and intermediate portions provided with openings for gaseous fluid entry and exit; a rotor presenting an inner cylindrical reference surface and a plane reference surface; an electric motor; radial magnetic bearings; an axial abutment; and auxiliary mechanical bearings. The modular assembly can then be incorporated in a main casing simply by sliding and it can be connected directly to a functional unit without reworking adjustments of the magnetic bearings. | 2015-08-27 |
20150244240 | POWER GENERATOR AND TURBINE COUPLING METHOD - Provided is a power generator and turbine coupling method for coupling an electric power generator, a first turbine and the second turbine in this order, according to an embodiment. The method includes the assembling the power generator, the first turbine, and the second turbine, aligning a generator rotating body of the power generator and a first turbine rotating body of the first turbine, connecting the generator rotating body and the first turbine rotating body, and connecting the first turbine rotating body of the first turbine and a second turbine rotating body of the second turbine. The assembling of the second turbine or the connecting of the first turbine rotating body and the second turbine rotating body is performed in parallel with or after the aligning of the generator rotating body and the first turbine rotating body. | 2015-08-27 |
20150244241 | ACTUATOR OF A FLAP OF A THERMAL ENGINE AIR CIRCUIT - The invention relates to a actuator ( | 2015-08-27 |
20150244242 | COOLING STRUCTURE FOR ELECTRIC MOTOR - A cooling structure for an electric motor includes: a motor case that houses a stator and a rotor therein, a groove opened on an end surface in an axis direction of the rotor being formed in the motor case; a motor control circuit attached to the motor case; and a terminal base that closes the groove to constitute the groove as a cooling water passage through which cooling water can flow, the terminal base connecting a power line of the motor to a power line of the motor control circuit. | 2015-08-27 |
20150244243 | CONNECTION DEVICE FOR A ROTARY ELECTRIC MACHINE AND USE OF SUCH A CONNECTION DEVICE IN AN ELECTRIC SUPERCHARGER - A connection device is provided for a rotary electric machine of the type supplied with power by a plurality of first pins arranged on a bearing of an axis of the machine at predetermined angular intervals around the axis at a first predetermined distance. The connection device includes a plurality of second pins that are arranged around the axis at a second predetermined distance, which is greater than the first predetermined distance, and that are electrically connected to a plurality of first terminals able to be connected to the first pins. The connection device also includes a main part made of plastics material with a plurality of overmoulded metal bars connecting the second pins and the first terminals. | 2015-08-27 |
20150244244 | METHOD OF PUNCHING CORE PIECE AND STACKED CORE - Disclosed is a method of punching a core piece having a bridge formed between a radially-outer end of a magnet insertion hole and an outer region of the core piece. The method includes punching out the magnet insertion hole, forming a through hole that defines a radially-outer contour of the bridge, and blanking the core piece in an exterior shape while avoiding an edge of the punch from coinciding with the radially-outer contour of the bridge. | 2015-08-27 |
20150244245 | CONTINUOUS ACTION, SELF-OPERATING MULTI-VOLTAGE ELECTRICITY PRODUCING UNIT AND METHODOLOGY - An apparatus and method provides off grid electricity in multiple forms and electric power levels to provide a plurality of levels of electricity to be used to power many levels of electricity simultaneously. | 2015-08-27 |
20150244246 | Switched-Mode Power Conversion - In accordance with an embodiment, a method of operating a switched-mode power converter includes driving a switching element in successive drive cycles, in which the switching element is driven to switch on for an on-period and subsequently driven to switch off for an off-period; sampling a feedback signal two or more times during the drive cycles, where the feedback signal includes a signal representative of an operation parameter of the switched-mode power converter and noise. The method further includes filtering the sampled feedback signal to extract the signal representative of the operation parameter from the sampled feedback signal and controlling the switching element according to the filtered feedback signal. | 2015-08-27 |
20150244247 | INVERTER APPARATUS CAPABLE OF CONTROLLING BURST MODE OPERATION AND CONTROL METHOD THEREOF - An inverter apparatus is provided. The inverter apparatus includes a direct current to direct current (DC/DC) converter, a direct current to alternating current (DC/AC) converter and a control circuit. The DC/DC converter is arranged for converting an input power to a DC power according to a control signal. The DC/AC converter is coupled to the DC/DC converter, and is arranged for receiving the DC power, and generating an AC power according to the DC power. The control circuit is coupled to the DC/DC converter, and is arranged for generating the control signal according to a reference power and the input power so as to control an operation of the DC/DC converter, detecting the control signal to generate a detection result, and controlling the reference power according to the detection result so as to adjust a duty cycle of the control signal. | 2015-08-27 |
20150244248 | Supply Voltage Management - A method for the start-up and/or the maintenance of a supply voltage for a driver circuit for a solid state light source is described. The driver circuit comprises a switched-mode power converter with a switch and a transformer. The switched-mode power converter converts an input voltage into an output voltage. The driver circuit has a controller which generates a gate control signal for putting the power converter switch into an on-state or an off-state. The driver circuit comprises a supply voltage capacitor to provide a voltage to the controller. A primary coil of the transformer is arranged in series with the power converter switch. A secondary coil arrangement of the transformer provides the output voltage. and is coupled to the supply voltage capacitor via a supply voltage transistor which is controlled such that the supply voltage provided by the supply voltage capacitor lies within a pre-determined voltage interval. | 2015-08-27 |
20150244249 | INVERTER DEVICE AND POWER CONVERTING METHOD THEREOF - The invention is directed to an inverter device and a power converting method thereof. A control unit adjusts a pulse width modulation (PWM) signal serving to control power conversion of an inverter circuit according to a current harmonic component detected by a detection unit to generate an offset current to be superposed to an AC current output by the inverter circuit. | 2015-08-27 |
20150244250 | REGULATION OF AN ELECTRONIC VOLTAGE ADAPTER MODULE - An electric module for adapting a first signal of a first system to a second signal of a second system, including: a power supply source supplying a first signal; a converter module configured to convert the first signal into an intermediate signal; a microcontroller controlling and regulating the converter module; and an inverter module configured to output a signal compatible with a second signal of a second system. | 2015-08-27 |
20150244251 | INVERTING APPARATUS AND DETECTION METHOD OF ISLANDING OPERATION - An inverting apparatus and a detection method of an islanding operation are provided. The inverting apparatus includes an inverting circuit and a control circuit; the inverting circuit is connected to a power grid, wherein the inverting circuit receives a DC input power, and converts the DC input power into an AC output voltage and an AC output current; the control circuit is coupled to the inverting circuit; the control circuit is configured to control the power conversion of the inverting circuit, wherein the control circuit generates a disturbance signal base on a preset time interval to disturb the AC output current generated by the inverting circuit, and detects whether the frequency of the AC output voltage is located within a preset frequency range, so as to decide whether to enable an islanding protection mechanism. | 2015-08-27 |
20150244252 | INVERTING APPARATUS AND AC POWER SYSTEM USING THE SAME - An inverting apparatus and an AC power system are provided. The inverting apparatus includes an inverting circuit, a detection circuit, and a control circuit. The inverting circuit receives a DC input voltage and converts the DC input voltage into an AC output voltage. The detection circuit samples the AC output voltage and compares the sampled AC output voltage respectively with a first reference voltage and a second reference voltage so as to generate a first indication signal and a second indication signal. The control circuit controls the operation of the inverting circuit. The control circuit determines whether the amplitude of the AC output voltage is located within an operating voltage range during each driving cycles according to the first and the second indication signals, and decides whether to enable an overvoltage protection or an undervoltage protection to control the power conversion of the inverting circuit according to the determination results. | 2015-08-27 |
20150244253 | INVERTING APPARATUS AND PHOTOVOLTAIC POWER SYSTEM USING THE SAME - An inverting apparatus and a photovoltaic power system using the same are provided. The inverting apparatus includes an inverting circuit, a control circuit, and a voltage regulator-based ground detection circuit. The control circuit controls the power conversion of the inverting circuit. The voltage regulator-based ground detection circuit samples an input voltage of the DC input power, and performs voltage regulation and voltage division on the input voltage to generate a ground indication voltage. The electric potential of the output terminal of the voltage regulator is built based on a photovoltaic ground terminal of a photovoltaic module. The ground indication voltage is the voltage difference between an output terminal of the voltage regulator and a device ground terminal of the inverting apparatus. The control circuit determines whether a ground fault occurs to the photovoltaic module and enables a ground protection mechanism to control the inverting circuit when the ground fault occurs. | 2015-08-27 |
20150244254 | Energy Recovery Snubber - An energy recovery snubber circuit for a power converter which includes a flyback transformer driven by a converter switch is disclosed. The snubber circuit includes two capacitors which are connected such that, when the snubber circuit is connected to a primary winding of the flyback transformer, the capacitors are charged in series by current flowing in a first direction in the primary winding when the converted switch is turned OFF, to recover energy stored in the leakage inductance of the transformer, and discharged in parallel to cause current flow in a second direction in the primary winding of the transformer, to thereby transfer the recovered energy to the transformer. | 2015-08-27 |
20150244255 | METHOD FOR CONTROLLING INVERTER APPARATUS BY DETECTING PRIMARY-SIDE OUTPUT AND INVERTER APPARATUS THEREOF - A control method for an inverter apparatus is provided. The inverter apparatus includes a direct current to direct current (DC/DC) converter and a direct current to alternating current (DC/AC) converter. An output side of the DC/DC converter is coupled to an input side of the DC/AC converter. The control method includes the following steps: outputting a DC power from the output side of the DC/DC converter; receiving the DC power from the input side of the DC/AC converter, and generating an AC power from an output side of the DC/AC converter according to the DC power; and detecting the DC power, and accordingly controlling an operation of the DC/AC converter. | 2015-08-27 |
20150244256 | CONVERTING APPARATUS AND CONTROL METHOD THEREOF - An inverting apparatus and a control method thereof are provided. The inverting apparatus includes an inverting circuit, a capacitor, and a control circuit. The inverting circuit receives a DC input power and is configured to convert the DC input power into an AC output power, wherein an AC output current of the AC output power is preset to a preset output current. The capacitor is connected to an output terminal of the inverting circuit. The control circuit is coupled to the inverting circuit and is configured to control a power conversion of the inverting circuit, wherein the control circuit superimposes a preset capacitor compensation current of which the phase leads to the preset output current on the preset output current, so as to control the inverting circuit to adjust the AC output current and provide the adjusted AC output current to a power grid. | 2015-08-27 |
20150244257 | ELECTRONIC DEVICE AND METHOD OF MANUFACTURING THE SAME - There is described an electronic device, the device comprising (a) a power supply terminal for connecting to a power supply ( | 2015-08-27 |
20150244258 | CHARGE PUMP INITIALIZATION DEVICE, INTEGRATED CIRCUIT HAVING CHARGE PUMP INITIALIZATION DEVICE, AND METHOD OF OPERATION - In an initialization phase of a charge pump, an input signal is supplied to an input electrode of a capacitor of the charge pump and to an initialization device of the charge pump. An initialization signal is supplied to the initialization device of the charge pump. The initialization device supplies an output signal to an output electrode of the capacitor. The output signal has a high level and a low level corresponding to a high level and a low level of the input signal, the input signal and the output signal causing a charge to be accumulated in the capacitor. In a pumping operation phase following the initialization phase, the initialization signal is removed from the initialization device to place the output electrode of the capacitor in a floating state, and a pumping action is performed with the charge accumulated in the capacitor. | 2015-08-27 |
20150244259 | BIPOLAR HIGH-VOLTAGE NETWORK AND METHOD FOR OPERATING A BIPOLAR HIGH-VOLTAGE NETWORK - An aircraft bipolar high-voltage network includes a DC voltage converter comprising two unipolar input connections, two bipolar output connections and a reference potential connection, and at least one unipolar device having two electrical connections which are each coupled to one of the two unipolar input connections. The DC voltage converter has a first DC voltage converter module coupled to a first of the unipolar input connections via a module input connection, to the reference potential connection via a module reference potential connection and to a first of the bipolar output connections via a module output connection, and a second DC voltage converter module coupled to a second of the unipolar input connections via a module input connection, to the reference potential connection via a module reference potential connection and to a second of the bipolar output connections via a module output connection. | 2015-08-27 |
20150244260 | ELECTRIC CIRCUIT OF A SWITCHABLE CURRENT SOURCE - An electric circuit of a switchable current source ( | 2015-08-27 |
20150244261 | BOOST CONVERTER AND CONTROL METHOD THEREOF - A boost converter includes an inductor configured to have one terminal connected with an input power source; a switching element configured to be connected between another terminal of the inductor and a reference potential terminal; a rectifier configured to be connected between the other terminal of the inductor and an output terminal; and a controller configured to boost a voltage of the input power source using the inductor by applying a duty drive to the switching element in a switching cycle so that a command value of a current to be flowing into the inductor is equivalent to an average value of a current flowing into the inductor during an off period during which the switching element is duty-off in the switching cycle, and to have the voltage output from the output terminal. | 2015-08-27 |
20150244262 | SWITCHING CONVERTER WITH CONSTANT ON-TIME CONTROLLER THEREOF - A control circuit for controlling a switching circuit has a ramp compensation circuit, a DC calibration circuit, a comparison circuit and a logic circuit. The ramp compensation circuit generates a ramp compensation signal. The DC calibration circuit generates a DC calibration signal by sampling and holding the ramp compensation signal. The comparison circuit generates a comparison signal according to the ramp compensation signal, a feedback signal representative of an output voltage of the switching converter, a reference signal and the DC calibration signal. The logic circuit generates a control signal to control the switching circuit according to an on-time signal and the comparison signal. | 2015-08-27 |
20150244263 | 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. | 2015-08-27 |
20150244264 | VOLTAGE CONTROL METHOD - The present invention discloses a voltage control method. First, the load voltage of the load is divided to generate a feedback voltage. Then, an absolute value of a periodic triangular wave signal is retrieved to generate a positive feedback signal, which and the feedback voltage are then combined to produce a sum signal. The sum signal is then compared with a target voltage and when the sum signal is less than the target voltage, a control signal is generated and thus the load voltage is updated and stabilized using an input voltage. In an alternative method, the feedback voltage and the periodic triangular wave signal are combined to generate a sum signal, which is compared with the target voltage. When sum signal is less than the target voltage, a control signal is generated and thus the load voltage is for updated and stabilized using an input voltage. | 2015-08-27 |
20150244265 | STARTUP CIRCUIT AND POWER SUPPLY CIRCUIT - In a startup circuit, an error amplifier receives a target voltage in a startup period that is a terminal voltage with a shape of a slope generated by charging a capacitor for soft starting with a current from a constant current circuit. A detecting circuit monitors variation of the terminal voltage and blocks pulse from a logic circuit until the terminal voltage, which has been zero volts at the moment of startup, reaches a predetermined threshold value. In this period, the detecting circuit disables the function of the error amplifier. It is not until the terminal voltage VCS reaches the predetermined threshold value and the PWM pulse begins to be delivered that the error amplifier is enabled. At this moment, startup control begins based on the difference between the terminal voltage and the feedback signal. Therefore, the output voltage never rises abruptly. | 2015-08-27 |
20150244266 | VOLTAGE CONVERSION CIRCUIT AND ELECTRONIC CIRCUIT - A voltage conversion circuit includes: a first voltage conversion unit configured to perform voltage conversion on an input signal, the voltage conversion causing a predetermined delay time, and supply a resultant signal as a first converted signal; a second voltage conversion unit configured to perform voltage conversion on the input signal, the voltage conversion causing a delay time that is different from the predetermined delay time, and supply a resultant signal as a second converted signal; and an output unit configured to generate and output an output signal corresponding to the first and second converted signals in a matching period of time in which voltages of the first converted signal and the second converted signal are matched with each other, and continuously output the output signal in a period of time excluding the matching period of time, the output signal being output in the matching period of time. | 2015-08-27 |
20150244267 | DC-DC CONVERTER AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME - a DC-DC converter, including a conversion unit configured to convert a battery voltage input to an input terminal of the DC-DC converter into a first voltage, and to output the first voltage to an output terminal of the DC-DC converter, a feedback voltage generation unit configured to generate a feedback voltage by dividing the first voltage, an error amplifier (AMP) configured to supply, to a pulse width modulation (PWM) control circuit, an error signal indicating a voltage difference between the feedback voltage and a reference voltage, the PWM control circuit being configured to control the conversion unit, corresponding to the error signal, thereby changing the first voltage, and a reference voltage supply unit configured to supply the reference voltage to the error AMP, and to change the reference voltage. | 2015-08-27 |
20150244268 | POWER CONVERSION SYSTEM WITH CONTROLLED NEUTRAL - Improved electrical power conversion system configured to transfer power between a DC voltage differential occurring between input DC terminals and lower DC voltage differential made up of the output differential voltages between a positive output DC terminal and a system neutral terminal and a negative output DC terminal and the system neutral terminal. The system actively controls the output differential voltages to account for variations in the electrical loading placed on the system. The system also actively controls the neutral voltage differential between the neutral terminal and Earth Ground. The output differential voltages are controlled to be maintained within an acceptable range for the types of electrical loads powered by the system (e.g. computers, servers, LED lighting) and to the extent the differentials vary, the system corrects the variances at frequencies which do not adversely affect system circuit protection or the electrical loading on the system. Similarly, control of the neutral voltage differential is performed to maintain the differential constant (preferably at about 0 volts) and corrects variances at frequencies which do not adversely affect system circuit protection or the electrical loading on the system. | 2015-08-27 |
20150244269 | SWITCHING MODE POWER SUPPLY WITH ADAPTIVELY RANDOMIZED SPREAD SPECTRUM - In described examples, a switching mode power supply includes an output filter, a driver, a pulse width modulator, and pulse adaptation circuitry. The output filter is configured to provide output of the switching mode power supply. The driver is coupled to the output filter and is configured to switch current to the output filter. The pulse width modulator is configured to generate pulses that control switching of current by the driver. The pulse width modulator includes spread spectrum logic configured to randomize timing of the pulses generated by the pulse width modulator. The pulse adaptation circuitry is configured to identify an instantaneous excursion of the output of the switching mode power supply beyond a predetermined threshold, and to modify the randomized timing of the pulses produced by the pulse width modulator based on the identified instantaneous excursion. | 2015-08-27 |
20150244270 | INTERMEDIATE BUS ARCHITECTURE POWER SUPPLY - An intermediate bus architecture power supply system including an output voltage feedback-regulated, isolated first stage switching voltage converter (SVC) such as an intermediate bus converter, connected via an intermediate voltage bus (IVB) to at least one second stage DC-to-DC voltage converter. The first stage SVC is configured to adjust its switching duty cycle to compensate for voltage fluctuations on the IVB. The voltage regulation mechanism of the first stage SVC may thus suppress oscillations in the IVB voltage which originate from the first stage SVC's input or from fluctuations in the system's load current, and consequently reduce electromagnetic interference as well as the amplitude of voltage and current fluctuations on the IVB. | 2015-08-27 |
20150244271 | BIDIRECTIONAL ISOLATED DC-DC CONVERTER - The present disclosure discloses a bidirectional isolated DC-DC converter, which comprises two ports, two voltage and current isolated acquisition units, a processing module, two filtering-circuit units, and a bidirectional power-converting module. One of the two ports is selectively used as an input terminal of the bidirectional isolated DC-DC converter, and another of the two ports is used as an output terminal. The two voltage and current isolated acquisition units are connected with the two ports respectively to sample voltages and currents at the two ports and generate corresponding feedback signals. The processing module receives the feedback signals and outputs corresponding control signals according to the feedback signals. The bidirectional power-converting module is connected via the two voltage and current isolated acquisition units to the two ports to perform the conversion of different voltages between the two ports according to the control signals output by the processing module. | 2015-08-27 |
20150244272 | VALLEY TO VALLEY SWITCHING IN QUASI-RESONANT MODE FOR DRIVER - Techniques are described to adjust the time when a switch is turned on from the time of one voltage valley to the time of another voltage valley for controlling an average load current or average load voltage. In some examples, the adjustment is instantaneous, and in some examples, the adjustment is gradual. Both of these example techniques provide for high switching efficiency of the switch. | 2015-08-27 |
20150244273 | VALLEY TO VALLEY SWITCHING IN QUASI-RESONANT MODE FOR DRIVER - Techniques are described to adjust the time when a switch is turned on from the time of one voltage valley to the time of another voltage valley for controlling an average load current or average load voltage. In some examples, the adjustment is instantaneous, and in some examples, the adjustment is gradual. Both of these example techniques provide for high switching efficiency of the switch. | 2015-08-27 |
20150244274 | System and Method for a Switched Mode Power Supply - In accordance with an embodiment, a method of controlling a switched-mode power supply includes operating the switched-mode power supply in a first operating mode by monitoring a feedback signal from an output of the power supply using a feedback interface circuit in a first configuration. The method further includes determining when the feedback signal crosses a first threshold in a first direction, and transitioning the switched-mode power from the first operating to a second operating mode by switching the feedback interface circuit from the first configuration to a second configuration. | 2015-08-27 |
20150244275 | Power Conversion with Delay Compensation - In accordance with an embodiment, a method includes driving an electronic switch in a switched-mode power converter in successive drive cycles, wherein driving the switch in each of the drive cycles comprises switching on the electronic for an on-period and subsequently switching off the electronic switch for an off-period. The method further includes establishing the on-period based on a comparison of an on-time signal with an off-threshold, calculating the off-threshold based on an output signal of the switched-mode power converter and a compensation offset, and calculating the compensation offset in one drive cycle based on an estimated delay time, wherein the estimated delay time is calculated based on a measured delay time and an estimated delay time of a previous drive cycle. | 2015-08-27 |
20150244276 | SWITCHING POWER CONVERTER, CLOCK MODULE, CONTROL CIRCUIT AND ASSOCIATED CONTROL METHOD - A power converter having a clock module and a method for controlling a clock signal of the power converter. The clock module is configured to provide the clock signal and to set a clock frequency of the clock signal to a first predetermined frequency at the moment when the power converter is powered on. The clock module is further configured to regulate the clock frequency to increase from the first predetermined frequency to a second predetermined frequency through a predetermined times of step type frequency increase during a startup procedure of the power converter. | 2015-08-27 |
20150244277 | Fuel cell system in a bipolar high-voltage network and method for operating a bipolar high-voltage network - A bipolar high-voltage network for an aircraft or spacecraft. The network includes at least one DC-DC converter having two unipolar input connections and two bipolar output connections as well as a reference potential connection, at least two fuel cell stacks which are coupled in series between the two unipolar input connections, and at least two discharge diodes, each connected in parallel with the output connections of one of the at least two fuel cell stacks. The DC-DC converter is operable selectively in a step-up converter mode of operation or a step-down converter mode of operation, as a function of an input voltage between the unipolar input connections. | 2015-08-27 |
20150244278 | POWER CONVERSION DEVICE AND POWER CONVERSION METHOD - There is provided a power conversion method of a power conversion device including a plurality of primary side ports disposed in a primary side circuit and a secondary side port disposed in a secondary side circuit magnetically coupled to the primary side circuit using a transformer, the power conversion device adjusting transmitted power transmitted between the primary side circuit and the secondary side circuit, and a duty ratio of the switching of the primary side circuit or a duty ratio of the switching of the secondary side circuit being changed, including fixing the first duty ratio or the second duty ratio to the third duty ratio when the phase difference is the upper limit value and the detected voltage of the first primary side port is less than the product of the target voltage of the second primary side port and 100/the third duty ratio. | 2015-08-27 |
20150244279 | ELECTRIC POWER CONVERSION CIRCUIT SYSTEM - There is provided an electric power conversion circuit system having a primary side electric power conversion circuit, a secondary side electric power conversion circuit, and a control circuit. The control circuit sets at least one of a half-bridge phase difference between a lower-left-arm transistor and a lower-right-arm transistor of the primary side electric power conversion circuit and a half-bridge phase difference of the secondary side electric power conversion circuit based on OFF periods of the primary side and secondary side electric power conversion circuits, dead-times of the primary side and secondary side electric power conversion circuits, and an amount of change of a power supply voltage so that a current in a non-transmission period of electric power is zero between the primary side and secondary side electric power conversion circuits. | 2015-08-27 |
20150244280 | DIRECT CURRENT POWER TRANSMISSION NETWORKS OPERATING AT DIFFERENT VOLTAGES - A direct current power transmission system includes a first direct current power transmission network operating at a first voltage level for delivering power to a second direct current power transmission network operating at a second voltage level, where the first direct current power transmission network comprised a group of rectifiers, each connected to an alternating current source, a DC/DC converter station including at least one DC/DC converter providing an interface between the first and second direct current power transmission networks, and a group of transmission lines, each connected between a corresponding rectifier and the DC/DC converter station. | 2015-08-27 |
20150244281 | CONVERTER CIRCUIT WITH ADJUSTABLE DC BUS VOLTAGE - A method for controlling voltage of a DC bus in a converter circuit is provided. The method includes monitoring a duty cycle of a switch that connects a resistive circuit across the DC bus, the switch being closed when the DC bus voltage reaches an upper voltage value and opened when the DC bus voltage reaches a lower voltage value and altering the lower voltage value based upon the duty cycle of the switch. | 2015-08-27 |
20150244282 | DIRECT AC POWER CONVERSION DEVICE - A DC link has first and second power supply lines. A first rectifying circuit has a plurality of input terminals that input an AC voltage and a pair of output terminals connected to the DC link. An inverter converts a voltage applied to the DC link into another AC voltage. A boost chopper has a capacitor at an output stage. A switch switches discharge and non-discharge from the capacitor to the DC link. In the boost chopper, charge into the capacitor is performed at least at a first period. The first period is a part of a period during which a discharge duty as a time ratio of continuity of the switch is larger than 0. | 2015-08-27 |
20150244283 | AC Input Power Converter With Multi-Functional Inductor - In certain embodiments, a power converter has an input side connected to receive AC input power at an input node and an output side connected to produce a regulated output power at an output node. The power converter has a transformer having at least one primary winding on the input side and at least one secondary winding on the output side. The power converter has at least one multi-functional inductor that supports both main regulation and supplemental regulation in a time-multiplexed manner such that, during main regulation, input energy is transferred from the input node to the output node via the multi-functional inductor, and, during supplemental regulation, the stored energy is transferred from the at least one energy storage element to the output node via the multi-functional inductor. Depending on the embodiment, the multi-functional inductor(s) may be one or two secondary transformer windings or a separate buck inductor. | 2015-08-27 |
20150244284 | Soft Switching Inverter - An inverter comprises a first switch coupled to an input of an output filter and a positive dc bus, a second switch coupled to the input of the output filter and a negative dc bus, a transformer coupled to a common node of the first switch and the second switch, a first freewheeling apparatus and a first soft switching switch connected in series, wherein the first soft switching switch is configured such that the first switch is of a first zero voltage transition during a turn-on process of the first switch and a second freewheeling apparatus and a second soft switching switch connected in series, wherein the second soft switching switch is configured such that the second switch is of a second zero voltage transition during a turn-on process of the second switch. | 2015-08-27 |
20150244285 | INVERTING APPARATUS AND CONTROL METHOD THEREOF - An inverting apparatus and a control method thereof are provided. The inverting apparatus includes an inverting circuit, a detection circuit, and a control circuit. The inverting circuit converts a DC input power into an AC output power. The detection circuit detects an input voltage and an input current. The control circuit provides a control signal for disturbing the input voltage, such that a voltage value of the input voltage is adjusted to a command voltage represented by the control signal. The control circuit calculates an input power corresponding to each of time points, calculates a power variation between the disturbed power and the undisturbed power, then determines whether the power variation is larger than a predetermined variation, and sets a disturbance voltage according to the determination result, based on an MPPT operation or based on a disturbance direction of the command voltage of the previous time point. | 2015-08-27 |
20150244286 | INVERTING APPARATUS AND CONTROL METHOD THEREOF - An inverting apparatus and a control method thereof are provided. The inverting apparatus includes an inverting circuit, a detection circuit, and a control circuit. The control circuit is coupled to the inverting circuit and the detection circuit and configured to provide a control signal to control the inverting circuit so as to adjust a voltage value of an input voltage into a command voltage represented by the control signal. The control circuit calculates a voltage difference between the detected input voltage and the command voltage so as to determine whether the voltage difference is greater than a preset value. When determining that the voltage difference is greater than the preset value, the control circuit sets the voltage value of the command voltage as the voltage value of the current input voltage. | 2015-08-27 |
20150244287 | POWER CONVERSION APPARATUS AND POWER CONVERSION METHOD - A controller of a power conversion apparatus according to an embodiment causes a chopper and an inverter to generate an alternating-current (AC) voltage including first and second parts of an AC voltage waveform and causes the inverter to output the AC voltage. The chopper generates the first part having an absolute value higher than a voltage of a DC power supply, and the inverter generates the second part having an absolute value lower than the voltage of the DC power supply. The controller is configured to alternately turn on the first and second switching elements in a period during which the controller controls the chopper to generate the first part of the AC voltage waveform. | 2015-08-27 |
20150244288 | INVERTING APPARATUS - An inverting apparatus including an inverting circuit and a control circuit is provided. The inverting circuit has a first bridge arm unit, a second bridge arm unit, and an energy charging/discharging unit. The energy charging-discharging unit is coupled between the first bridge and the second bridge arm units. The first bridge ail 1 unit is switched according to a first and a second control signals and the second bridge arm unit is switched according to a third and a fourth control signals, so as to converts a DC input voltage into an AC output voltage. The control circuit controls the power conversion of the inverting circuit by the control signals. The control circuit samples magnetizing currents flow through the first and the second bridge arm units so as to adjust switch timing of the control signals, and thus the inverting circuit is operated at the boundary conduction mode (BCM). | 2015-08-27 |
20150244289 | VIBRATOR, MANUFACTURING METHOD THEREFOR, AND ELECTRONIC APPLIANCE - A vibrator according to the invention includes: a substrate; a lower electrode that is formed on the substrate and has a through hole formed therein; an upper electrode that is disposed above the lower electrode so as to be spaced apart from the lower electrode, and includes a protruding portion that protrudes toward the through hole; and a facing portion that is formed on the substrate, and faces the protruding portion. A distance between the facing portion and the protruding portion is smaller than a distance between the lower electrode and the upper electrode. | 2015-08-27 |
20150244290 | SYSTEM AND METHOD FOR REGENERATIVE BRAKING IN ELECTRIC DRIVE SYSTEM - The present disclosure is related to a method for regenerative braking of a machine. The machine includes an electric drive assembly. The electric drive assembly includes a generator, a motor and a direct current bus and a regenerative brake assembly disposed between them. The regenerative braking assembly includes an inverter. The method includes connecting a phase leg between the direct current bus and the inverter. The phase leg includes an inductor and an electric switch. The phase leg boosts the regenerative voltage. The boosted regenerative voltage is then fed back to control a braking torque from the motor and directed back to the generator. | 2015-08-27 |
20150244291 | MOTOR DECELERATION METHOD AND MOTOR DRIVING SYSTEM USING THE SAME - A motor deceleration method for a motor driving system is provided. The motor driving system outputs a driving signal containing a voltage value, a current value and a frequency value for driving a motor. When a deceleration of the motor is launched, the descent speeds of the voltage value and the frequency value are controlled according to a preset deceleration time period. Then, a voltage compensation value is generated according to a result of comparing the current value with a preset current level, and the voltage value is increased according to the voltage compensation value, so that the current value is increased to the preset current level. According to a frequency compensation value, the current value is increased to and maintained at the preset current level. Finally, the rotating speed of the motor is gradually decreased to a preset speed. | 2015-08-27 |
20150244292 | SYSTEM AND METHOD FOR ENERGY MANAGEMENT FOR ELECTRIC DRIVE SYSTEM - The present disclosure is related to a method for energy management for an electric drive system during regenerative braking of a machine. The machine includes an electric drive assembly. The electric drive assembly includes a generator, a motor, a primary direct current bus and a secondary direct current bus having a regenerative brake assembly. The method of energy management includes connecting at least a chopper and a crowbar across the secondary direct current bus. Further, the method includes directing a secondary power stored during regenerative braking, from the primary or secondary or both the buses through the chopper or the crowbar during fault condition. | 2015-08-27 |
20150244293 | SYSTEM HAVING A FIRST ELECTRIC MOTOR AND A SECOND ELECTRIC MOTOR FOR DRIVING A STRING - An exemplary system includes a first electric motor and a second electric motor, which are coupled mechanically to one another via a common string of the system. The string has a torsional natural oscillation at a natural frequency. A first oscillating torque acts on the string by the first electric motor and a second oscillating torque acts on the string by the second electric motor. The second electric motor is arranged with respect to the first electric motor such that the effect of the second oscillating torque on the string results in damping of the excitation of the natural oscillation owing to the first oscillating torque. | 2015-08-27 |
20150244294 | DC ELECTRIC FAN AND DRIVING SYSTEM THEREOF - A DC electric fan receiving a first direct current voltage is provided. The DC electric fan includes a motor, a fan blade, a voltage converting device and a motor controller. The motor is directly driven by the first direct current voltage. The fan blade is connected to the motor and rotated by the driving of the motor. The voltage converting device receives and converts the first direct current voltages to a second direct current voltage, wherein the magnitude of the first direct current voltages is larger than the magnitude of the second direct current voltage. The motor controller receives the second direct current voltages to control a rotation direction of the motor, wherein the motor controller is not powered by the first direct current voltage and the first direct current voltage is a fixed direct current voltage. | 2015-08-27 |
20150244295 | DRIVING CIRCUIT AND DRIVING METHOD THEREOF - A driving circuit drives a motor containing a first coil and a second coil. The driving circuit includes a switching unit, an operation unit and a control unit. The switching unit receives a switching signal from the control unit for driving the motor. The control unit detects the rotation speed of the motor. When the rotation speed of the motor is greater than a predetermined rotation speed, the control unit outputs a first operation signal to the operation unit to couple the first terminals of the first and second coils and couple the second terminals of the first and second coils. When the rotation speed of the motor is less than or equal to the predetermined rotational speed, the control unit outputs a second operation signal to the operation unit to couple the second terminal of the first coil to the first terminal of the second coil. | 2015-08-27 |
20150244296 | ELECTRICAL POWER GENERATOR FOR A GAS TURBINE ENGINE - An aircraft electrical power generation system includes an AC generator having a rotor including a plurality of electromagnetic rotor-windings and stator including plurality of electrical stator-windings. The rotor mechanically coupled to a shaft of a gas turbine engine by transmission-system. The generator includes a frequency controller, a torque sensor determining a torque on the transmission-system by the generator and controller to operate the system in first and second modes. In first mode, the power output frequency of the generator controlled by the frequency controller within limits, and reduced idle signal going to a turbine engine controller. In second mode, the power output frequency of the generator not controlled by the frequency controller and increased idle signal going to the turbine engine controller. The controller operates the system in first mode when the torque is below a limit, and in second mode when the torque is above a limit. | 2015-08-27 |
20150244297 | SYSTEM AND METHOD FOR REDUCING ICE AND/OR CONDENSATION FORMED ON A POWER COMPONENT - The present subject matter is directed to a system and method for reducing ice or condensation that forms on a power component of a wind turbine during a power outage. The method includes determining an ambient temperature near the power component; providing one or more parameters of the power component; determining a down time of the power component for the power outage; determining a wait time for the power component to stay offline as a function of the ambient temperature, the one or more parameters, and the down time of the power component; and, heating the power component for the wait time before supplying power to the power component such that a surface temperature of the power component is raised above the ambient temperature. As such, the method prevents the power component from being energized when condensation or ice may be present. | 2015-08-27 |
20150244298 | ROTARY ELECTRIC MACHINE CONTROL APPARATUS AND CONTROL METHOD FOR ROTARY ELECTRIC MACHINE - A rotary electric machine control apparatus includes: a phase estimator configured to estimate a first estimated phase value based on a rotary electric machine current; a correction value storage configured to store correction information representing a plurality of second estimated phase values and a plurality of correction values; a first phase corrector configured to acquire, based on a second estimated phase value corresponding to the first estimated phase value, from the correction information, a correction value associated with the second estimated phase value, and configured to correct the second estimated phase values based on the correction value; a position controller configured to calculate a speed command based on a position command and the corrected second estimated phase value; and a speed controller configured to calculate a torque command value and a q-axis current command value based on the speed command and the corrected second estimated phase value. | 2015-08-27 |