37th week of 2017 patent applcation highlights part 62 |
Patent application number | Title | Published |
20170264122 | Systems and Methods for Simultaneously Charging a Battery with Multiple Power Sources - Systems and methods for power management are disclosed herein. In one disclosed embodiment, a battery charging system includes a battery charger for simultaneously charging a battery (and/or providing power to a system load) with multiple power sources, using a closed-loop charging servo target based on measurements taken by one or more gauges. In some embodiments, the multiple power sources may be utilized simultaneously according to a charging profile that specifies, e.g., one or more battery charging parameters, as well as according to determined priority levels for one or more of the multiple power sources coupled to the battery. In some embodiments, the priority level of a given power source is not fixed; rather, the priority level for the given power source may change based upon the characteristics of the given power source. In some embodiments, the priority levels for the multiple power sources are implemented using cascaded voltage target values. | 2017-09-14 |
20170264123 | BATTERY MANAGEMENT SYSTEM AND RELATED TECHNIQUES FOR ADAPTIVE, DYNAMIC CONTROL OF BATTERY CHARGING - A battery management circuit and method for managing a power supply and one or more battery strings includes a current sensing circuit and a battery measurement circuit. The current sensing circuit is configured to: receive a current signal from at least one of the battery strings at a first terminal of the current sensing circuit; measure a magnitude of the current signal; and provide a current sensing signal indicative of the magnitude of the current signal at a third terminal of the current sensing circuit. The battery measurement circuit is configured to: receive a current sensing signal at a third terminal of the battery management circuit; measure one or more characteristics of the at least one of the battery strings; and provide a power supply control signal at a first terminal of the battery measurement circuit. | 2017-09-14 |
20170264124 | REGULATION CIRCUIT HAVING ANALOG AND DIGITAL FEEDBACK AND METHOD THEREFOR - A regulation circuit for powering a device while charging a battery is provided. The regulation circuit includes at least one analog feedback loop, and a digitally controlled feedback loop. The digitally controlled feedback loop includes first and second comparators. The first and second comparators compare an input power supply voltage to first and second threshold voltages, respectively. The second threshold voltage is lower than the first threshold voltage. In response to the comparisons, the digitally controlled feedback loop controls a charging current for charging a battery while also regulating a current to power circuits of the device. If the input power supply voltage drops, the digitally controlled feedback loop responds faster than the analog feedback loop, reducing the risk that to supply voltage will drop too much to reliably power to the device circuits. A method for digitally regulating an output current to charge a battery is also provided. | 2017-09-14 |
20170264125 | ENERGY MANAGEMENT SYSTEM - An energy management system includes a power supply module, a charging module, an interface module and an energy management module. The power supply module provides an input power. The charging module generates, based on the input power, a first charge power and a second charge power in response to a first charge control signal and a second charge control signal. The interface module detects electrical energy stored in an energy storage device to generate a detection result. In response to the detection result, the energy management module determines an operating state of the energy storage device, and generates one of the first and second charge control signals. | 2017-09-14 |
20170264126 | System of Batteries and Method of Controlling this System - A system of electric batteries includes a plurality of batteries (HVB | 2017-09-14 |
20170264127 | STORAGE BATTERY CONTROL APPARATUS, POWER STORAGE SYSTEM, AND METHOD FOR CHARGING STORAGE BATTERY - A storage battery control apparatus is provided with which a system capable of charging a storage battery using power from an electric power system and also charging the storage battery using power from a power generation system is inexpensively built. A storage battery control apparatus includes a switching control unit and a switch for connecting a CT to a current sensor connecting portion in a power generation system during a period during which a storage battery is charged using power from an electric power system, and for connecting a CT to the current sensor connecting portion during a period during which the storage battery is charged using power from the power generation system. | 2017-09-14 |
20170264128 | Wireless Electrical Charging System - A wireless electrical charging system includes a wireless communication unit that may emit a radio frequency signal. An induction unit is electrically coupled to a power source. The induction unit is in electrical communication with the wireless communication unit. The induction unit may communicate an electrical signal to the wireless communication unit. Thus, the radio frequency signal may carry the electrical signal. A receiving unit is in electrical communication with the wireless communication unit. Thus, the receiving unit may receive the electrical signal from the wireless communication unit. The receiving unit may be selectively electrically coupled to an extrinsic electronic device. Thus, the receiving unit may charge the extrinsic electronic device. | 2017-09-14 |
20170264129 | ENHANCED WIRELESS POWER CHARGING SYSTEM - A network of participating geographically diverse organizations or locations that offer a bluetooth/wifi aggregated enhanced wireless charging system to charge personal digital assistants is provided. The enhanced wireless charging system includes a bluetooth charging outlet device that charges the personal digital assistant, and a bluetooth charging USB plug-in device. The bluetooth charging outlet device includes a function button that turns the bluetooth charging outlet device ON or OFF, ventilation slots that maintains air flow in the bluetooth charging outlet device to avoid overhearing The bluetooth charging USB plug-in device is coupled with the personal digital assistant. The bluetooth charging USB plug-in device includes a USB that connects the bluetooth charging USB plug-in device to the personal digital assistant, a function button that turns the bluetooth charging USB plug-in device ON or OFF, a USB charging port that charges the bluetooth charging USB plug-in device, and a Velcro that couples the bluetooth charging USB plug-in device to the personal digital assistant. | 2017-09-14 |
20170264130 | BI-PLANE WIRELESS POWER TRANSMISSION PAD - An apparatus includes a first charging coil with one or more conductors arranged in a first winding pattern, a second charging coil with one or more conductors arranged in a second winding pattern, and a ferrite structure with a main section with a top side, a first side section and a second side section. A portion of the top side of the main section is adjacent to a portion of the bottom side of the first side section and the second side section. A portion of the first and second charging coils are positioned adjacent to the top side of the main section interior in between the first and second side sections. A portion of the first charging coil is adjacent to the bottom of the first side section. A portion of the second charging coil is adjacent to the bottom of the second side section. | 2017-09-14 |
20170264131 | WIRELESS POWER RECEPTION DEVICE - A wireless power reception device includes an inner coil, a mounting member having the inner coil mounted thereon and a slit formed in an edge of the inner coil, and a first shielding member and a second shielding member laminated on the first shielding member and provided in correspondence with the inner coil, the mounting member being mounted on the first shielding member and the second shielding member. Accordingly, it is possible to improve efficiency of the wireless power reception device. | 2017-09-14 |
20170264132 | INDUCTIVE WIRELESS CHARGING SYSTEM - A charger, especially a chargeable mobile device for an inductive wireless charging system, is provided which includes at least one coil having a core part formed of a soft magnetic material, wherein the coil is embedded in a polymer bonded soft magnetic material. | 2017-09-14 |
20170264133 | Portable Pad for Wireless Charging - Some embodiments provide a system for charging devices. The system includes a master device and a slave device. Some embodiments provide a method for charging devices in a system that includes a slave device and a master device. The slave device includes (1) an antenna to receive a radio frequency (RF) beam and (2) a power generation module connected to the antenna that converts RF energy received by the slave antenna to power. The master device includes (1) a directional antenna to direct RF power to the antenna of the slave device and (2) a module that provides power to the directional antenna of the master device. | 2017-09-14 |
20170264134 | Wireless Charging of Devices in a Car - Some embodiments provide a system for charging devices. The system includes a master device and a slave device. Some embodiments provide a method for charging devices in a system that includes a slave device and a master device. The slave device includes (1) an antenna to receive a radio frequency (RF) beam and (2) a power generation module connected to the antenna that converts RF energy received by the slave antenna to power. The master device includes (1) a directional antenna to direct RF power to the antenna of the slave device and (2) a module that provides power to the directional antenna of the master device. | 2017-09-14 |
20170264135 | ENERGY MANAGEMENT APPARATUS, ENERGY MANAGEMENT METHOD AND PROGRAM RECORDING MEDIUM - An object of the present invention is to set a demand schedule for performing highly efficient demand-supply adjustment of electric power, to deal with electric power demand. To achieve the object, an energy management apparatus of the present invention is an energy management apparatus for performing demand-supply adjustment of electric power by use of a plurality of chargeable and dischargeable energy storage devices, comprising: a plan management means for acquiring a variation of a load of an electric power grid predicted during a target period; and a demand variation setting means for setting a value of an operational electric energy for charging and discharging of each of the plurality of energy storage devices to be a value corresponding to a halt state or a value between a minimum rated output and a maximum rated output, in a manner to make a difference between maximum and minimum values of the load be smaller than a difference that is predicted, by operation of the plurality of energy storage devices. | 2017-09-14 |
20170264136 | Multiple Energy Accumulator System for Motor Vehicle Electrical Systems - The invention relates to a vehicle electrical system that includes a first energy accumulator which has a first maximum open circuit voltage when the first energy accumulator is fully charged, and a second energy accumulator which has a second maximum open-circuit voltage when the second energy accumulator is fully charged. The second maximum open circuit voltage is higher than the first maximum open circuit voltage. The vehicle electrical system also includes a generator configured to generate electrical energy for the vehicle electrical system and a control unit that is configured to detect a recuperation mode of the vehicle. The control unit is also configured to cause the generator, while the vehicle is in the recuperation mode, to generate electrical energy with a charge voltage which is in or above a buffer voltage range, wherein the buffer voltage range lies between the first maximum open circuit voltage and the second maximum open circuit voltage. | 2017-09-14 |
20170264137 | METHOD FOR PREPARING AN EMERGENCY ENERGY STORE FOR OPERATION - Described and shown is a process for preparing an emergency energy storage device, with at least one energy storage element for operation, whereby the emergency energy store is designed to provide emergency electrical energy for at least one energy consumer, whereby the energy (E | 2017-09-14 |
20170264138 | UTILITY POWER GRID SUBSTATION AUXILIARY POWER SYSTEM - An auxiliary power system for electrical substations is provided. The auxiliary power system enables both AC and DC equipment to be powered during prolonged power outages, and utilizes a substation fuel cell to provide a backup power source for designated black start cranking path substations. | 2017-09-14 |
20170264139 | IMPEDANCE SHIFT ANALYSIS TO PREDICT FAILURES IN AN ELECTRICAL POWER DISTRIBUTION NETWORK - Embodiments of the present invention provide for impedance shift analysis for failure prediction in an electrical power distribution network. In an embodiment of the invention, the method includes receiving a sequence of electrical measurements indicative of an impedance measured for a segment of an electrical power distribution network over a period of time. Then, a set of impedance measurements is computed for the period of time and the set of impedance measurements is organized into a distribution correlating each one of the impedance measurement with a corresponding computed current measurement. A trend line for the distribution is identified and a slope computed of the trend line. Finally, on condition that the slope exceeds a threshold steepness, an impending failure in the segment is determined and a notification transmitted over a computer communications network to an end user requesting physical inspection of the segment. | 2017-09-14 |
20170264140 | INVERTER FOR INDUCTIVE POWER TRANSMITTER - A push-pull inverter for an inductive power transmitter including a DC power supply that supplies power to a first and second branches; a resonant inductor connected between a first node on the first branch and a second node on the second branch; a first switch, switched by a first switching signal, connected between the first node and a common ground; and a second switch, switched by a second switching signal, connected between the second node and the common ground. The first switching signal is based upon the second node when the second node is low and based upon a DC source when the second node is high. The second switching signal is based upon the first node when the first node is low and based upon a DC source when the first node is high. | 2017-09-14 |
20170264141 | METHOD AND APPARATUS FOR ADAPTING WIRELESS POWER TRANSFER BETWEEN WIRELESS POWER PROTOCOLS - A wireless power transfer adapter is provided. The wireless power transfer adapter comprises a receive coil configured to receive wireless power from a wireless power transmitter at a first frequency associated with a first wireless power protocol of a plurality of wireless power protocols. The wireless power transfer adapter comprises a rectifier circuit configured to convert the wireless power received by the receive coil from the first frequency to a second frequency associated with a second wireless power protocol of the plurality of wireless power protocols that is different from the first protocol. The wireless power transfer adapter comprises a transmit coil configured to transmit at least some of the wireless power to a wireless power receiver at the second frequency and according to the second wireless power protocol. | 2017-09-14 |
20170264142 | WIRELESS POWER TRANSMISSION DEVICE, WIRELESS POWER TRANSMISSION METHOD, NON-TRANSITORY COMPUTER READABLE MEDIUM AND WIRELESS POWER TRANSMISSION SYSTEM - A wireless power transmission device related to embodiments of the present invention includes a plurality of power transmission resonators, a communicator, a power transmission controller and a power transmission circuit. | 2017-09-14 |
20170264143 | WIRELESS POWER TRANSFER PAD AND GROUND ASSEMBLY HAVING THE SAME - A wireless power transmission pad for transmitting wireless power to a reception pad including a secondary coil includes: a rectangular-shaped primary coil having an X-width defined in an x-direction and a Y-width defined in a y-direction and having a central space; a ferrite coupled to the primary coil; and a housing supporting the primary coil and the ferrite. A first cross-sectional area of a first portion including the X-width of the primary coil is smaller than a second cross-sectional area of a second portion including the Y-width of the primary coil. | 2017-09-14 |
20170264144 | WIRELESS POWER TRANSMITTER AND RECEIVER - Disclosed is a method for wirelessly transmitting, by a power transmitter including a primary coil, power. The method may include detecting the placement of objects on a surface of an interface included in the power transmitter and selecting a power receiver which belongs to the detected objects and to which power is to be transmitted, performing digital ping for applying a power signal for detecting and identifying the power receiver to the power receiver and receiving a response to the digital ping from the power receiver, obtaining information about the configuration of the power receiver and establishing a power transfer contract with the power receiver using the configuration information, and wirelessly transmitting the power to the power receiver based on the established power transfer contract. | 2017-09-14 |
20170264145 | Wireless Charging Using Sound Waves - An ultrasound power transmitter comprising a transmit ultrasonic transducer array has a plurality of transmit ultrasonic transducers. The ultrasound power transmitter activates a set of transmit ultrasonic transducers in close proximity of an electronic device to be arranged to beam ultrasound energy to the electronic device. Alignment magnets of the ultrasound power transmitter are aligned with corresponding alignment magnets of the electronic device to manage the ultrasound beaming. The ultrasound energy may be converted into electric power to charge the battery of the electronic device. Feedbacks may be provided by the electronic device to the ultrasound power transmitter to increase power transmission efficiency. The ultrasound power transmitter may pair the electronic device with other different electronic devices utilizing ultrasonic signals. A spacer with good ultrasound power transmission properties may be located between the ultrasound power transmitter and an ultrasound power receiver of an intended electronic device to enhance power transmission. | 2017-09-14 |
20170264146 | LINEAR MOTOR - Disclosed is a linear motor that can exert a high propulsive force and reduce cogging. A stator has a plurality of core units in a stroke direction. Each of the core units has a first core having a first magnetic pole and a second magnetic pole, which is different in polarity from the first magnetic pole, coils wound around the first core, a second core having a third magnetic pole and a fourth magnetic pole, which is different in polarity from the third magnetic pole, and coils wound around the second core. The third magnetic pole faces the first magnetic pole, and the fourth magnetic pole faces the second magnetic pole. A movable element is sandwiched between the first magnetic poles and the third magnetic poles, and between the second magnetic poles and the fourth magnetic poles. | 2017-09-14 |
20170264147 | STATOR CORE - A stator core of a rotating electric machine, includes a base, teeth, slots, and cutouts. The base includes a through-hole having a substantially cylindrical shape surrounded by an inner circumferential wall around a center axis of the substantially cylindrical shape. Teeth are arranged around the center axis and extending along a radial direction of the substantially cylindrical shape from the inner circumferential wall toward the center axis. Each of the teeth has a first end surface and a second end surface opposite to the first end surface in the center axis. Each of the slots is defined between a tooth and another tooth adjacent to the tooth among the teeth such that a coil is to be provided into each of the slots. Each of the cutouts is provided in the first end surface to face an inner surface of a bent portion of the coil. | 2017-09-14 |
20170264148 | TOOL AND METHOD FOR USE IN ASSEMBLING A STATOR ASSEMBLY OF AN ELECTRIC MACHINE - An end cap for use with a stator assembly is provided. The end cap includes a tooth portion, a yoke portion, and a lip. The tooth portion includes a first end and an opposite second end and the yoke portion is formed at the first end of the tooth portion. The yoke portion includes at least one arm that extends from the tooth portion. The lip is defined along at least one of the tooth portion and the at least one arm portion. | 2017-09-14 |
20170264149 | MOTOR FOR A SUCTION ASSEMBLY OF AN ENHANCED-PERFORMANCE EXTRACTOR HOOD - A single-phase asynchronous motor ( | 2017-09-14 |
20170264150 | STRUCTURE FOR FIXING PERMANENT MAGNET AND MOTOR AND METHOD OF FIXING PERMANENT MAGNET - A fixing structure for a permanent magnet includes: a cylindrical housing; a permanent magnet housed inside the housing; and an adhesive layer formed in a gap G between the housing and the permanent magnet and having an adhesive for fixing the permanent magnet to the housing. The adhesive layer is formed such that a filling rate of the adhesive is higher in the gap at another axial end of the permanent magnet than at one axial end of the permanent magnet. The permanent magnet is configured such that a density at said other axial end is higher than the density at said one axial end. | 2017-09-14 |
20170264151 | PERMANENT MAGNET TYPE ROTATING ELECTRIC MACHINE - A permanent magnet type rotating electric machine includes a stator, a rotor core, and permanent magnets embedded in the rotor core. The permanent magnets include N-pole magnets, having N-poles opposed to the stator, and S-pole magnets, having S-poles opposed to the stator. The N-pole magnets are arranged adjacent to each other, and the S-pole magnets are arranged adjacent to each other. The outer circumferential portion of the rotor core includes a first N-pole corresponding section corresponding to an N-pole magnet that is not adjacent to an S-pole magnet and is partially wider in the radial direction than a second N-pole corresponding section that corresponds to an N-pole magnet that is adjacent to one of the S-pole magnets. | 2017-09-14 |
20170264152 | Electric Machine Rotor - An electric machine rotor includes a lamination configured to rotate about a central axis and a plurality of pairs of permanent magnets. Each pair of permanent magnets is arranged in a V-shaped pattern and affixed within the lamination to create a magnetic field for rotation of the lamination. The lamination also includes an outer periphery spanning circumferentially outside of the permanent magnets, wherein a mass-reduction cutout extends through the lamination nested within in a V-shape defined by the permanent magnets adjacent to an outer surface of the rotor. The lamination further includes a stress-reduction slot that extends through the outer periphery of the rotor. | 2017-09-14 |
20170264153 | Electric Machine Rotor - A rotor may include a planar lamination having permanent magnets arranged therein, and an inner edge defining an opening configured to receive a driveshaft. The planar lamination may include a driveshaft key, and a relief notch and scallop disposed on each side of the driveshaft key. The relief notch and scallop may distribute stress imparted to the driveshaft key and reduce deformation due to centrifugal loads during rotation of the rotor. The relief notches may be next to the driveshaft key. The relief notches may be sandwiched between the scallops. The inner edge may include additional scallops. | 2017-09-14 |
20170264154 | INDUCTION HEATING DEVICE, JOINING METHOD, JOINED COMPONENT AND ROTARY ELECTRIC MACHINE INCLUDING THE SAME - A joined component comprises a first heated body, a second heated body, a brazing material, a first heated portion and a second heated portion. The first body comprises an insertion opening and an inserted portion coupled with the insertion opening. The second body comprises an insertion portion inserted into the inserted portion through the insertion opening. The first heated portion is provided at a first position including at least a part of the inserted portion and at least a part of the insertion portion. The second heated portion is provided at a second position separate from the insertion portion where a ratio “L/D” satisfies being 0.4 or more and 0.8 or less, where “L” is a length from the insertion opening to the second portion and “D” is an outer diameter of the second heated body. | 2017-09-14 |
20170264155 | Dynamo-Electric Machine - There is provided a dynamo-electric machine that can provide excellent insulating properties by downsizing coil ends. A dynamo-electric machine includes a stator and a rotator. The stator has a stator iron core formed with a plurality of slots arranged in a circumferential direction, and a stator coil inserted into the slots of the stator iron core. The rotator is rotatably disposed on the stator iron core with a predetermined gap. The stator coil is provided with an insulating film. The stator coil includes a main coil and a lead wire with an alternating current terminal. The main coil has a plurality of segment coils connected to one another. The segment coil is a conductor in a rectangular cross section formed in advance in a nearly U-shape. The lead wire is led from the slot. The tip end of the segment coil is formed in a trapezoid cross section. | 2017-09-14 |
20170264156 | STATOR OF ROTATING ELECTRIC MACHINE - A stator of a rotating electric machine, includes a stator core, a stator coil, and a coolant guide. The stator core has a first end surface and a second end surface opposite to the first end surface in a rotational axis of the rotating electric machine. The stator core has slots that are arranged around the rotational axis and that extend along the rotational axis from the first end surface to the second end surface. The stator coil is provided in each of the slots. The stator coil has a first coil end protruding from the first end surface and a second coil end protruding from the second end surface. The coolant guide disposed between the first end surface of the stator core and the first coil end of the stator coil to guide a coolant to flow in a circumferential direction around the rotational axis. | 2017-09-14 |
20170264157 | STATOR - A stator that includes an annular stator core having a plurality of slots and a plurality of coils attached to the stator core, the plurality of coils each including a main body that is inserted in the plurality of slots and includes two slot housed portions and coil end portions including oblique portions extending obliquely with respect to the axial direction, a radially first side end portion formed from one of the slot housed portions, and a radially second side end portion formed from the other one of the slot housed portions. | 2017-09-14 |
20170264158 | ESP Motor with Sealed Stator Windings - Systems and methods for electric motor, where the stator core has one or more stator core sections, each of which is a single-piece unit formed of soft magnetic composite (SMC) material, and where the stator core sections are positioned end-to-end with seals at each end to form a plurality of stator slots, where each of the stator slots extends through each of the stator core sections and is in fluid communication with the others to form a sealed stator chamber. The sealed stator chamber may have an expansion chamber to allow expansion and contraction of dielectric fluid in the stator chamber while maintaining separation of the dielectric oil from lubricating oil which is within the motor but external to the stator chamber. The sealed stator chamber can prevent well fluids that leak into the motor from reaching the stator windings and degrading their insulation. | 2017-09-14 |
20170264159 | INNER-ROTOR-TYPE MOTOR AND ELECTRIC TOOL PROVIDED WITH SAME - An inner-rotor-type motor is configured such that a projecting portion is formed on an inner circumferential surface of a housing, a recess portion is formed on an outer circumferential surface of a stator, the stator is positioned with respect to the housing by the recess portion and the projecting portion being fitted to each other, the stator is configured by an annular insulator having an attachment surface being brought into close contact with a core end surface at one axial end of a stator core, a sensor substrate is attached to the insulator so as to be capable of detecting a rotation angle of a rotor, the recess portion of the stator is configured by a cutout portion being formed in an area that is a part of an outer circumferential surface of the insulator and includes a portion that is brought into close contact with the core end surface. | 2017-09-14 |
20170264160 | STRUCTURE FOR FIXING CABLE FOR WATERPROOF FAN CASE - A structure for fixing a cable for a waterproof fan case according to the present disclosure includes: a frame on which a motor is installed, and a blade is rotatably installed in a state in which a driving shaft of the motor is connected to a front side thereof; an insertion tube which extends rearward from the frame, has therein an insertion hole to which a power line connected to the motor is penetratively coupled in a front and rear direction, and has a gap portion formed to be split at one side in a transverse direction; and a coupling ring which has a hollow portion that is penetratively formed in the front and rear direction so that the coupling ring is correspondingly coupled to an outer circumference of the insertion tube in a male-female manner, and has a pressing protrusion that is formed to protrude on an inner circumferential surface of the coupling ring so as to press and support an outer circumference of the power line through the gap portion when coupling the coupling ring to the insertion tube. | 2017-09-14 |
20170264161 | Rotor Section With Center Tube For Submersible Pump Assembly Motor - A submersible well pump assembly has a pump driven by an electrical motor. The motor has a number of rotor sections axially separated from each other by radial bearings. Each of the rotor sections has disks stacked together, each of the disks having a central opening and slots circumferentially spaced around the central opening. Metal rods extend through the slots. A center tube extends through the central openings of the disks. The center tube has an outer diameter in an interference fit with the disks. A slot and key arrangement between the inner diameter of the center tube and the motor shaft rotates the motor shaft in unison. The ends of the center tube extend past end rings of the rotor sections and abut with center tubes of adjacent rotor sections. | 2017-09-14 |
20170264162 | RESIN MEMBER - An electric generator | 2017-09-14 |
20170264163 | HVAC ACTUATOR WITH ONE-WAY CLUTCH MOTOR - An actuator in a HVAC system includes a drive device and a motor coupled to the drive device. The drive device is configured to attach to a movable HVAC component and to drive the movable HVAC component between multiple positions. The motor includes a shell defining an outer perimeter of the motor, a rotor shaft contained within the shell and configured to rotate when an electric current is applied to the motor, a drive shaft extending through the shell and coupled to the drive device, and a one-way clutch contained within the shell and rotatably coupling the rotor shaft to the drive shaft. | 2017-09-14 |
20170264164 | Device and Method for Storing Energy - The present disclosure relates to energy storage. The teachings thereof may be embodied in a device and/or a method for storing electricity. For example a device for storing energy may include: a first vessel having a first holding space; a separating apparatus dividing the first holding space into a first chamber for holding a first medium and a second chamber for holding a gas phase; the separating apparatus movable to cause a simultaneous change in volume of the first chamber and the second chamber; a second vessel with a second holding space exchanging mass transfer of the gas phase in the second chamber; a temperature-control apparatus supplying or removing heat energy to the second vessel; a conveying apparatus conveying the medium into the first chamber; and an expansion apparatus driven by the medium. | 2017-09-14 |
20170264165 | SYNCHRONOUS GENERATOR OF A GEARLESS WIND TURBINE - A synchronous generator, in particular a multiple-pole synchronous ring generator of a gearless wind turbine, for generating electric current, comprising a rotor and a stator is provided. The stator has a large number of slots for receiving a stator winding in the form of conductor bundles, wherein the slots each have a slot base, whose surface is profiled in such a way that, during filling, a first layer on the slot base side of conductor bundles assumes an orientation which is preset by the profile. A stator for such a generator and to a wind turbine comprising such a generator is provided. | 2017-09-14 |
20170264166 | Conveyor Belt Driven Generator - A generator comprises a stator having a central axis and a rotor. The stator is configured and adapted to be supported by a portion of conveyor belt support structure. The stator comprises an opening aligned with the central axis configured and adapted to receive at least a portion of a shaft of a conveyor belt roller. The rotor is configured and adapted to connect to the conveyor belt roller in a manner such that the rotor and conveyor belt roller can collectively rotate about the central axis. The rotor encircles the stator and comprises a plurality of permanent magnets. | 2017-09-14 |
20170264167 | ROTARY ELECTRIC MACHINE - In a rotary electric machine, a power supply unit includes a metal casing, a power circuit unit mounted in the metal casing, and a control board for controlling an operation of the power circuit unit, and supplies power to a motor main body. The power circuit unit includes a plurality of power semiconductor components and a capacitor unit. The plurality of power semiconductor components and the capacitor unit are disposed alternately on a plane perpendicular to a rotary shaft of the motor main body. | 2017-09-14 |
20170264168 | ELECTRIC MOTOR WITH FAN MOTOR - An electric motor comprising: an motor main body, a fan motor for cooling the motor main body, and a casing which is attached to the motor main body to hold the fan motor, wherein the fan motor has engagement parts, and both of the motor main body and the casing are provided with engagement parts which can engage with the engagement parts on the fan motor to fasten the fan motor. | 2017-09-14 |
20170264169 | ELECTRODYNAMIC MACHINE COMPRISING A COOLING DUCT - A turbine generator of the reverse-flow type having a rotor winding and a stator winding and a cooling duct, wherein the cooling duct is designed as a diffuser. The diffuser is designed such that a device is arranged on an internal cooling duct wall, which device prevents the flow of the cooling medium from stalling, leading to an improved, more uniform flow to a cooling apparatus. | 2017-09-14 |
20170264170 | Refrigeration System with Internal Oil Circulation - A pumping system configured to be deployed in a wellbore includes a motor that is filled with a motor lubricant oil, a production pump driven by the motor, a heat exchanger and an internal oil circulation system contained within the pumping system. The internal oil circulation system circulates the motor lubricant oil between the motor and the heat exchanger. | 2017-09-14 |
20170264171 | MOTOR ASSEMBLY FOR DRIVING A PUMP OR ROTARY DEVICE, HAVING POWER PLANE WITH MULTI-LAYER POWER AND CONTROL PRINTED CIRCUIT BOARD ASSEMBLY - A motor assembly for driving a pump or rotary device features a power plane with a circular geometry to be mounted inside a space envelope having a similar circular geometry formed on an end-plate between an inner hub portion and a peripheral portion that extends circumferentially around the space envelope of the end-plate. The power plane is a multi-layer circuit board or assembly having: a power layer with higher temperature power modules for providing power to a motor, a control layer with lower temperature control electronics modules for controlling the power provided to the motor, and a thermal barrier and printed circuit board layer between the power layer and the control layer that provides electrical connection paths between the power modules of the power plane and the control electronics modules of the control layer, and also provides insulation between the power layer and the control layer. | 2017-09-14 |
20170264172 | COMPACT ARCHITECTURE OF ELECTRIC POWER TRAIN FOR AUTOMOTIVE VEHICLE - An electric power train for an automotive vehicle includes an electric motor, a power electronics system, a first casing containing the power electronics system, a second distinct casing that contains the motor, and a third distinct casing. The first casing includes a bottom and an opening for access to the power electronics system. The second casing bears on an exterior wall of the first casing bottom. The opening is opposite the second casing. The third casing is assembled on the first casing and contains an electric filtering system. The first casing includes a platform, which juts out relative to at least one portion of the first casing and on a face of which platform an assembly contour for assembling the third casing on the first casing is defined. The assembly contour is substantially parallel to an axial direction of the motor. The platform overhangs the second casing. | 2017-09-14 |
20170264173 | STATOR MANUFACTURING METHOD AND COIL - A stator manufacturing method in which a coil including a plurality of coil units formed by winding a rectangular wire is fitted in a cylindrical core having a plurality of slots extending in a radial direction and opening in a core inner peripheral surface so that the slots are distributed in a circumferential direction, the rectangular wire being a linear conductor having a rectangular section. | 2017-09-14 |
20170264174 | Support apparatus for guide pin - A support apparatus for a guide pin contains: an accommodation tube, an upright post, a connection shaft, a holder, two side plates, a guiding trench, a roller, a guide pin, and a driving mechanism. The accommodation tube includes a fork, a through groove, and an elongated slot. The upright post includes two first coupling segments, and the connection shaft passes through the fork and is located on the accommodation tube. The holder includes two parallel joining extensions, and the two side plates are separated from each other. The guiding trench passes through the holder, and the roller is accommodated between the two side plates and is rotatably fitted with the connection shaft, and a part of the guide pin inserts into the guiding trench. The driving mechanism is accommodated in the elongated slot and is in connection with the two first coupling segments and the two joining extensions. | 2017-09-14 |
20170264175 | ENCLOSED-VENTILATED, ELECTRICALLY EXCITED SYNCHRONOUS MACHINE - An enclosed-ventilated electrically excited synchronous machine includes a shaft and a rotor which is non-rotatably positioned on the shaft. The rotor includes a plurality of pole bodies which project radially outwards. The pole bodies have each an exciter coil and form in their entirety a rotor winding, with each pole body having an end face formed with a coil winding head. A protective element is provided on the coil winding head to protect the coil winding head against abrasion. | 2017-09-14 |
20170264176 | ROTARY ELECTRICAL MACHINE WITH HOMOPOLAR STRUCTURE - The rotary electrical machine having a homopolar structure includes a number Npe of electrical phases. The machine includes a juxtaposition, along the rotational axis of the rotary electrical machine, of at least one pair of armatures having a number of poles Np, placed on both sides of at least one inductive coil wound around the rotational axis, two adjacent armatures being angularly offset by any electrical angle θs, preferably between 0° and 180°/Npe, and at least one “passive” inductor of ferromagnetic material, separated from the armatures by an air gap. Either the armatures form the rotor, or the inductor and the other element form the stator. | 2017-09-14 |
20170264177 | BLDC MOTOR ASSEMBLY - A brushless direct current (BLDC) motor assembly may include a wheel provided to receive and discharge outside air, and having a coupling region defined therein, a rotor fixedly coupled in the coupling region to be integrated in the coupling region, the wheel being rotated by torque generated according to rotation of the rotor by a magnetic force, and a stator generating a magnetic force by interacting with the rotor, and comprising a stator core, a coil, and an insulator disposed between the stator core and the coil for integral coupling with the stator core and the coil, in which the stator may allow the insulator to be coupled to the rotor after a shaft is fixed to the insulator. | 2017-09-14 |
20170264178 | PERMANENT-MAGNET SYNCHRONOUS MACHINE AND MOTOR VEHICLE SYSTEM - A permanent-magnet synchronous machine comprises a rotor and a stator for holding at least one first stator winding and a second stator winding which is electrically insulated from said first stator winding. The second stator winding has a smaller conductor cross section and a larger number of turns than the first stator winding, wherein a first operating voltage is provided for motor operation of the first stator winding and a second operating voltage is provided for motor operation of the second stator winding. The second operating voltage has a higher rated voltage than a rated voltage of the first operating voltage. | 2017-09-14 |
20170264179 | Hybrid Electric Motor for Electric Submersible Pump - Systems and methods for constructing electric motors including both permanent magnet elements and inductive elements. In one embodiment, a motor is implemented of an ESP system has multiple rotor sections that are mounted end-to-end within the bore of the stator. The permanent magnet elements and inductive elements may be combined within individual rotor sections, or they may be segregated so that one rotor section has only one type or the other. The inductive elements of the rotor allow the motor to be started without a VFD, and without knowing the position of the rotor within the motor. The permanent magnet elements synchronize the rotor with the rotating stator fields when the rotor approaches the operating frequency of the drive. | 2017-09-14 |
20170264180 | MOUNTING PEG - A press-fit mounting peg ( | 2017-09-14 |
20170264181 | Capacitive-Discharge Electromagnetic Propulsion System - The present invention discloses systems and methods for electromagnetic spacecraft propulsion or thrust generation without the expulsion of reaction mass. The systems include capacitor assemblies with a switch-controlled conductive discharge path, a means of charging the capacitor assemblies, a means of generating magnetic fields using electromagnetic coils, and a means for periodically shaping the intensity, duration and polarity of magnetic fields from the coils. Thrust is generated through the interaction of the shaped magnetic fields and the segmented current in the conductive discharge path during capacitor discharge. | 2017-09-14 |
20170264182 | LINEAR-MOTOR STATOR WITH INTEGRAL LINE REACTOR - A linear-motor stator assembly comprising a stator and an integral line reactor in one housing. The reactor has inductor coils which are connected in series with the stator windings to compensate for unequal inductances in the stator phases and balance the polyphase currents into the stator. | 2017-09-14 |
20170264183 | IMPROVEMENTS IN OR RELATING TO THE CONTROL OF CONVERTERS - A method is provided for controlling a converter including at least one converter limb corresponding to a respective phase of the converter, the or each converter limb extending between first and second DC terminals and including first and second limb portions separated by an AC terminal, each limb portion including a converter arm, at least one of the limb portions including at least one director arm, the or each director arm including a director switch. The method comprises the steps of obtaining a respective AC current demand phase waveform for the or each converter limb, and a DC current demand, both of which the or each converter limb is required to track; determining a limb portion current; timing the current ramp profile of the determined director arm current for the director arm or the one of the director arms; and providing a limb portion voltage source for each limb portion. | 2017-09-14 |
20170264184 | SEMICONDUCTOR DEVICE - In a semiconductor device, a high-side potential determination circuit outputs an event signal when a high-side reference potential detected by a high-side potential detection circuit rises. If at that time an input logic signal for controlling a high side is at a low (L) level, a pulse generation circuit regenerates a reset signal for a high-side drive circuit. When the input logic signal for controlling the high side is at the L level and the event signal is inputted, an overcurrent detection determination circuit makes an overcurrent detection signal from an overcurrent detection circuit invalid. When the event signal is not inputted, the overcurrent detection determination circuit makes the overcurrent detection signal valid. | 2017-09-14 |
20170264185 | SWITCHED MODE POWER SUPPLY COMPENSATION LOOP - A controller, and related method, configured to generate a duty cycle control signal for controlling an output voltage of a switched mode power supply as a function of a reference signal. In one embodiment, the controller is configured to sample a signal indicative of the output voltage to generate a first sampled signal, filter out a ripple component of the first sampled signal to generate a filtered signal, and generate a feedback control signal based on the filtered signal. The controller is also configured to sample a signal indicative of an input voltage of the switched mode power supply to generate a second sampled signal, generate a feed-forward control signal based on the second sampled signal and a feed-forward reference voltage, and generate the duty cycle control signal based on the feedback control signal and the feed-forward control signal. | 2017-09-14 |
20170264186 | INVERTER CIRCUIT, AND AIR CONDITIONER AND REFRIGERATOR USING THE SAME - Disclosed are an inverter circuit, and air conditioner and refrigerator using the same. The inverter circuit includes a rectifier configured to rectify an input Alternating-Current (AC) voltage into a Direct-Current (DC) voltage; a smoothing portion configured to smoothen the DC voltage output from the rectifier; an inverter connected to a load, and configured to convert the DC voltage smoothened by the smoothing portion into an AC voltage, and to output the AC voltage to the load; and a suppressor installed between the rectifier and the smoothing portion, and configured to suppress an overvoltage or overcurrent of a DC link to which the DC voltage from the smoothing portion is applied. | 2017-09-14 |
20170264187 | A VOLTAGE SOURCE CONVERTER - A voltage source converter, for interconnecting electrical networks, comprises a converter structure which includes a terminal for connection to the first electrical network and a terminal for connection to the second electrical network. The converter structure also includes at least one module that is connected between the terminals. The module includes at least one energy storage device and at least one switching element. The energy storage element and switching element are operable to selectively provide a voltage source. The converter structure still further includes an integrated passive fault current limiter that is configured to present a first impedance to a normal current flowing in the voltage source converter during normal operation of the voltage source converter, and is configured to present a second impedance to a fault current flowing in the voltage source converter during a fault condition. The first impedance is lower than the second impedance. | 2017-09-14 |
20170264188 | RANDOM PULSE WIDTH MODULATION FOR POWER CONVERTERS - A power generation system, wind turbine, and method of pulse width modulation (PWM) for power converters are disclosed. The method generally includes generating a substantially random distribution of timing values, applying a filter to the random distribution to produce a modified random distribution, and delivering PWM ing signals based on the modified random distribution to the power converters. | 2017-09-14 |
20170264189 | APPARATUS FOR CHARGE RECYCLING - One example discloses an apparatus for charge recycling between a first power-domain operating at a first voltage and a second power-domain operating at a second voltage, including: a first power-delivery circuit configured to supply the first voltage to the first power-domain; and a second power-delivery circuit coupled to receive power from both the first power-delivery circuit and the first power-domain; wherein the second power-delivery circuit is configured to supply the second voltage to the second power-domain. | 2017-09-14 |
20170264190 | Type III Switching Converter Error Amplifier with Fast Transient Response Behavior - A transient response circuit provides faster transient response time of an electronic device so that less overshoot or undershoot of an output signal of the electronic device occurs when a large load and/or line transient signal is present at an input and/or output terminal of the electronic device. The transient response circuit has a transient detection circuit and an assist circuit. The transient detection circuit monitors a feedback signal applied to an input terminal of the control stage, and generates transient detection signals indicating that detection of a large load and/or line transient signal has occurred. The assist circuit communicates receives the transient detection signal and charges or discharges a loop filter capacitor of the control stage for causing the control stage to regulate the output signal to decrease overshoot or undershoot upon receipt of the transient detection signal. | 2017-09-14 |
20170264191 | CHARGE PUMP CIRCUIT AND INTERNAL VOLTAGE GENERATION CIRCUIT INCLUDING THE SAME - A charge pump circuit may include a charge pump unit suitable for performing a charge pump operation until an output voltage reaches a target voltage; and a multi-stage charge sharing unit comprising first to Nth capacitors coupled in parallel between the charge pump unit and a load circuit, the multi-stage charge sharing unit being suitable for sequentially performing first to Nth charge sharing operations between the first to Nth capacitors, respectively, and the load circuit after the charge sharing operation, wherein the first to Nth charge sharing operations are mutually and exclusively performed, and N is a natural number equal to or greater than 2. | 2017-09-14 |
20170264192 | SWITCHED CAPACITOR CONVERTER - A system comprising: a switched capacitor circuit comprising a plurality of voltage divider circuit stages including a first voltage divider circuit stage coupled to a second voltage divider circuit stage; and a controller configured to supply a clock signal to the first voltage divider circuit stage to provide a first voltage on an output node of the first voltage divider circuit stage during a first half cycle of the clock signal, and a second voltage on said output node during a second half cycle of the clock signal. The second voltage divider circuit stage is configured to charge to an input voltage during a half cycle of the clock signal, and the controller is configured to synchronize charging of the second voltage divider circuit stage to a selected one of (i) the first half cycle of the clock signal, wherein the first voltage is supplied as said input voltage, and (ii) the second half cycle of the clock signal, wherein the second voltage is supplied as said input voltage. | 2017-09-14 |
20170264193 | CURRENT MIRROR CIRCUIT AND CHARGE PUMP CIRCUIT - A current mirror circuit includes: a reference current circuit including a reference transistor and a constant current source coupled between a high potential source and a low potential source; a first proportional current circuit, including a first transistor that forms a first current mirror circuit with the reference transistor, to generate a first current having a first ratio to a reference current of the reference current circuit; a second proportional current circuit, including a second transistor that forms a second current mirror circuit with the reference transistor, to generate a second current having a second ratio to the reference current; a comparison circuit to output a difference between a drain voltage of the first transistor and a drain voltage of the second transistor; and a current adjustment transistor coupled to a drain of the second transistor and including a gate to which an output of the comparison circuit is applied. | 2017-09-14 |
20170264194 | STEP-DOWN CHOPPER CIRCUIT - In a step-down chopper circuit, a distance between a plurality of first mounting portions of a first semiconductor package that houses a switching device circuit and a distance between a plurality of second mounting portions of a second semiconductor package that houses a backflow prevention diode circuit are different from each other. | 2017-09-14 |
20170264195 | SOFT START SWITCHING POWER SUPPLY SYSTEM - A switching power supply system includes a switching converter, to convert an input voltage into an output voltage and to generate a switching signal; a feedback circuit, to generate a feedback signal; an error amplifier to generate an error signal; a triangle signal generator to generate a triangle signal; a constant on time control circuit to receive error signal and the triangle signal, and to generate a constant on time control signal to control power switch; in the system. The triangle signal has a DC bias based on either a soft start signal or a second reference signal. The system could perform soft start function and meanwhile keep matching between the error signal and the triangle signal. | 2017-09-14 |
20170264196 | SEMICONDUCTOR INTEGRATED CIRCUIT - According to one embodiment, in a semiconductor integrated circuit, a first input terminal of an error amplifier is electrically connected to a third node between a second node and a reference potential. A second input terminal of the error amplifier is electrically connected to a reference voltage. An output terminal of the error amplifier is electrically connected to a gate of an output transistor. A first input terminal of a comparator is electrically connected to a fourth node between the second node and the reference potential. A second input terminal of the comparator is electrically connected to the reference voltage. One end of a coupling capacitance is electrically connected to an output terminal of the comparator. A gate of an auxiliary transistor is electrically connected to the other end of the coupling capacitance. A drain of the auxiliary transistor is electrically connected to the second node. | 2017-09-14 |
20170264197 | BOOST CHOPPER CIRCUIT - In a boost chopper circuit, a distance between a plurality of first mounting portions of a first semiconductor package that houses a switching device circuit and a distance between a plurality of second mounting portions of a second semiconductor package that houses a backflow prevention diode circuit are different from each other. | 2017-09-14 |
20170264198 | SWITCHING CONTROL CIRCUIT AND CONTROL METHOD - A switching control circuit for controlling a multi-channel switching circuit can include: a logic control circuit that receives an external operation signal, and generates an enable signal, a trigger signal, and an order signal; a reference voltage regulation circuit that receives the enable signal, the trigger signal, the order signal, and a plurality of input voltage signals, and generates an adjustable reference voltage signal, where the reference voltage regulation circuit is also configured to select one of the plurality of input voltage signals based on the order signal; a feedback control circuit that receives the reference voltage signal, the plurality of input voltage signals, and the output voltage signal, and generates a feedback control signal; and a channel selection circuit that receives the order signal and the feedback control signal, and generates switching control signals to control switching operations of the multi-channel switching circuit. | 2017-09-14 |
20170264199 | POWER CONVERSION APPARATUS - At least one monitor circuit monitors a temperature of at least one monitored element of switching elements of a power conversion circuit. At least one arrival determination circuit determines that a temperature of at least one non-monitored element of the switching elements has increased and reached a passing temperature. Based on the temperature of the monitored element and arrival determination signals, a temperature estimating unit obtains a temperature difference by subtracting a current temperature of the monitored and non-monitored element at the arrival determination time from an output limitation temperature set for each of the monitored and non-monitored element, and estimates a limitation subject temperature of the monitored or non-monitored element having a smallest temperature difference among the temperature differences. An output limiting unit starts output limitation of the power conversion circuit when the limitation subject temperature reaches the output limitation temperature of the monitored element or the non-monitored element. | 2017-09-14 |
20170264200 | VOLTAGE CONVERSION CIRCUIT, ELECTRONIC DEVICE, AND METHOD OF CONTROLLING VOLTAGE CONVERSION CIRCUIT - [Object] To reduce power consumption of a DC-DC converter. | 2017-09-14 |
20170264201 | METHOD AND CIRCUIT FOR PEAK POWER IN QUASI-RESONANT CONVERTERS - Implementations of the present disclosure involve a circuit and/or method for a control circuit of a switched-mode power supply that allows the power supply circuit to temporarily provide up to 2.0× the nominal maximum power rating of the circuit without the need for large storage devices within the power supply. For example, a control circuit of a switched-mode power supply may cause the power supply to operate in a quasi-resonant mode. However, when the load on the circuit increases such that the feedback voltage measurement meets or exceeds a voltage threshold, the control circuit causes the switched-mode power supply to enter a power excursion mode with a fixed switching frequency. If the load on the switched-mode power supply continues to increase, the off time of the switched-mode power supply may be scaled in response to increase the power provided by the switched-mode power supply. | 2017-09-14 |
20170264202 | METHOD AND CIRCUIT FOR PEAK POWER IN QUASI-RESONANT CONVERTERS - Implementations of the present disclosure involve a circuit and/or method for a control circuit of a switched-mode power supply that allows the power supply circuit to temporarily provide up to 2.0× the nominal maximum power rating of the circuit without the need for large storage devices within the power supply. For example, a control circuit of a switched-mode power supply may cause the power supply to operate in a quasi-resonant mode. However, when the load on the circuit increases such that the feedback voltage measurement meets or exceeds a voltage threshold, the control circuit causes the switched-mode power supply to enter a power excursion mode with a fixed switching frequency. If the load on the switched-mode power supply continues to increase, the off time of the switched-mode power supply may be scaled in response to increase the power provided by the switched-mode power supply. | 2017-09-14 |
20170264203 | Buck-Boost Controller Achieving High Power Factor and Valley Switching - A high power-factor buck-boost converter having a rectified low-frequency AC line voltage input and a DC output is provided. The converter may include a magnetic element, a controlled switch having a gate terminal and a drain terminal that is coupled to the magnetic element, a rectifier diode coupled to the magnetic element, an output smoothing capacitor coupled to the rectifier diode, and a control circuit having an output coupled to the gate terminal of the controlled switch for repeatedly turning the controlled switch off for a first time duration and on for a second time duration. The second time duration may be determined as a function of the first time duration immediately preceding the second time duration. | 2017-09-14 |
20170264204 | POWER SUPPLY APPARATUS - A power supply apparatus supplies a bus voltage V | 2017-09-14 |
20170264205 | BIDIRECTIONAL ISOLATED MULTI-LEVEL DC-DC CONVERTER AND METHOD THEREOF - A DC-DC converter is operated in a boost mode by operating a plurality of low-voltage side switches with a first fixed duty cycle (greater than 0.5), with cutting off a plurality of the first high-voltage side switches and a plurality of the second high-voltage side switches, with conducting a plurality of the first diodes of the first high-voltage side switches and a plurality of the second diodes of the second high-voltage side switches, and with alternatively conducting and cutting off a bidirectional switch. In a buck mode, the low-voltage side switches are cut off and a plurality of diodes of the low-voltage side switches are conducted. Furthermore, the first high-voltage side switches are complemented and are operated with a second fixed duty cycle (less than 0.5) while the second high-voltage side switches are conducted and cut off alternatively and the bidirectional switch is switched on and off. | 2017-09-14 |
20170264206 | ACTIVE CLAMP FLYBACK CONVERTER - An active clamp flyback converter includes a low-side switch that serves as a power switch and a high-side switch that serves as a clamp switch. The high-side switch is operated in one of two active clamp switching modes, which is selected based on load condition. In a complementary active clamp mode, the switching frequency of the low-side switch is decreased as the load increases. In a modified active clamp mode, the high-side switch is turned on in a same switching cycle first by zero voltage switching (ZVS) and second by quasi-resonant switching (QRS), with a QRS blanking time being increased as the load decreases. A ZVS delay time and dead time between switching are adaptively set based on a duty cycle of the low-side switch. The output voltage of the active clamp flyback converter is sensed from an auxiliary voltage of an auxiliary winding of the transformer. | 2017-09-14 |
20170264207 | MODULAR HIGH VOLTAGE SUPPLY SYSTEM - A modular high voltage supply system has a mobile adapter transformer with a high-voltage output side and a low-voltage input side, electrical connecting input-terminals being foreseen at the mobile adapter transformer outer surface, a mobile container with a low voltage supply system, mounted stationarily therein, having a high current busbar and at least one electrical frequency converter connected thereto, electrical connecting output-terminals for the high current busbar being foreseen at an accessible the mobile container edge; and a modular interim busbar system, for temporary electrical connection of input- and output-terminals, having at least one interim busbar with at least one elongated busbar basic module mounted on a frame structure and respective resilient electrical connections on both busbar basic module ends forming an electrical connection to the input- and/or output-terminals and arranged such that a transmission of vibrations from the mobile adapter transformer to the mobile container is suppressed. | 2017-09-14 |
20170264208 | IMPROVEMENTS IN OR RELATING TO ELECTRICAL ASSEMBLIES FOR VOLTAGE SOURCE SUB-MODULES - An electrical assembly for a voltage source sub-module is provided, which comprises a first semiconductor device module which includes a plurality of first semiconductor devices. The electrical assembly also includes an energy storage device which in turn includes a plurality of energy storage sections that are configured to control the magnitude of a current portion flowing through each first semiconductor device. The energy storage sections are so configured by arranging each energy storage section in isolation from the or each other energy storage section to divide a current flowing through the energy storage device into a plurality of the said current portions and thereby cause each current portion to flow through a respective one of the plurality of energy storage sections. The energy storage sections are still further so configured by connecting each energy storage section to a respective one of the plurality of first semiconductor devices. | 2017-09-14 |
20170264209 | Rectifying Module and Generating Device use thereof - A rectifying module including an input end, a load end, a one way conduction element, an electricity storage device, a first switch, and a first control circuit is provided. The one way conduction element is electrically connected between the input end and the load end. The electricity storage device is used to store electricity energy. The first switch is electrically connected between the input end and the electricity storage device. The first control circuit is electrically connected to the output end, and is used to enable the first switch when the voltage of the load end is bigger than a predetermined value. A generating device use thereof is provided. | 2017-09-14 |
20170264210 | CHATTERING-LESS RECTIFICATION CIRCUIT - A rectification circuit connected to a coil and a capacitor, includes, on each terminal side of the coil, a high-side transistor connected between a terminal of the coil and the capacitor, first and second low-side transistors connected in parallel between the terminal of the coil and a fixed potential, a comparator that causes the first low-side transistor to be turned on when a voltage of the terminal of the coil decreases to a first value and then turned off when the voltage increases to a second value that is higher than the first value and lower than the fixed potential, and a controller that causes the second low-side transistor to be turned off when the voltage decreases to a third value that is higher than the second value and lower than the fixed potential, and then turned off when the voltage increases to the third value. | 2017-09-14 |
20170264211 | LOAD CURRENT MEASUREMENT - In an example embodiment, an apparatus includes a bridge rectifier circuit having branches between the AC and DC nodes formed by a set of transistors. A load current measurement circuit includes a current-controlled current source coupled to the bridge rectifier circuit. The current control current source is configured to generate a mirrored current that is a scaled version of a current through at least one of the set of transistors. A current integration circuit is configured to integrate the mirrored current by charging a capacitor with the scaled current in a first mode and discharging the capacitor in a second mode. A sample and hold circuit is configured to set an output node to a voltage equal to a voltage stored by the capacitor in response to the current integration circuit entering the second mode and prior to the discharge of the capacitor. | 2017-09-14 |
20170264212 | VERIFYING SYSTEM AND METHOD FOR VERIFYING THE DISCONNECTING MEANS OF A DC/AC CONVERTER - Verifying system and method for verifying the disconnecting means of a DC/AC converter which are connected in series through a midpoint in each phase between the converter and a power grid. The system comprises voltage detectors and a control unit in communication with said detectors and configured for determining the status of the disconnecting means depending on said voltages. The detectors comprise a detector associated with each phase for measuring the voltages between the corresponding midpoint and the neutral of the power grid, and an additional detector for measuring the voltage between said neutral and a reference point of the converter. | 2017-09-14 |
20170264213 | SECONDARY CONTROL METHOD AND APPARATUS OF PARALLEL INVERTERS IN MICRO GRID - The present invention discloses a secondary control method and apparatus of parallel inverters in a micro grid, comprising: generating frequency and amplitude of fundamental voltage in the voltage instruction of inverter by droop control according to output voltage and output current of inverter to obtain a fundamental voltage instruction value; extracting voltage values and current values of a first and second AC signals from output voltage and output current of inverter, generating frequency instruction values of the first and second AC signals by droop control to obtain voltage instruction values of the first and second AC signals; regulating the output voltage of inverter according to the voltage instruction value of the first AC signal, the voltage instruction value of the second AC signal and the fundamental voltage instruction value. | 2017-09-14 |
20170264214 | PIEZOELECTRIC DEVICE AND ELECTRONIC APPARATUS - A piezoelectric device includes an insulating substrate, a piezoelectric vibration device that is mounted on a device mounting pad, a metal lid member that seals the piezoelectric vibration device in an airtight manner, an external pad that is arranged outside the insulating substrate, an oscillation circuit, a temperature compensation circuit, and a temperature sensor. The lid member and the temperature sensor or the lid member and the IC component are connected to each other so as to be heat-transferable, and a heat transfer member having thermal conductivity higher than that of the material of the insulating substrate is additionally included. | 2017-09-14 |
20170264215 | Energy Sensing and Harvesting Cantilever - An energy harvesting cantilever formed from multiple curved sections, with each curved section wrapped within the prior curved section but in an opposing direction, is the proposed solution to the problems described above. Such an energy harvesting cantilever favors bending over torsion, can be manufactured at a small scale, and will generate useful electrical energy with low frequency inputs. | 2017-09-14 |
20170264216 | Air Conditioner and Startup Control Method and System for Outdoor Fan of the Air Conditioner - An air conditioner and a startup control method and system for an outdoor fan of the air conditioner. While in a process of charging a bootstrap capacitor in an actuator of a motor of the outdoor fan, an initial rotation state of the motor is detected in real time, and, when charging of the bootstrap capacitor is completed, startup of the motor is correspondingly controlled on the basis of the detected initial rotation state. This allows real time initial startup work state to be acquired when charging of the bootstrap capacitor is completed, thus allowing the motor to be started smoothly, increasing the success rate in starting the motor, and solving the problem of low success rate in starting the motor of an outdoor fan. | 2017-09-14 |
20170264217 | MULTIPLE SUPPLY VOLTAGE MOTOR ASSEMBLY - Various embodiments include determining an alternating current (AC) voltage and frequency of a supply voltage coupled to a circuit input. The circuit includes a soft starter circuit that is coupled between the circuit input and a first side of an AC motor. A stator winding configuration of the AC motor is determined. A control transformer is configured in response to the AC voltage and frequency, wherein the control transformer is coupled to the circuit input. A jumper device is configured on a second side of the AC motor in response to the stator winding configuration of the AC motor. | 2017-09-14 |
20170264218 | OBSTRUCTION DETECTION DEVICE AND MONITOR DEVICE - A monitor device includes exterior panel, chassis partly or wholly surrounded by exterior panel, and disposed so as to be movable in an internal space of exterior panel, a base member that movably supports chassis, first switch and second switch that detect a change of a relative position between exterior panel and chassis, a motor that causes chassis to move with respect to the base member, and a CPU that controls driving of the motor in response to a change of a relative position between exterior panel and chassis detected by first switch and second switch. | 2017-09-14 |
20170264219 | ELECTRIC TOOL - Provided is an easy-to-use electric tool with which braking force can be changed according to work conditions. When an operation switch | 2017-09-14 |
20170264220 | VARIABLE FREQUENCY DRIVE MOTOR CONTROL - Various embodiments include a variable frequency drive motor control apparatus. The apparatus includes a main controller having a first interface. A motor controller is coupled to and controls an electric motor, the motor controller further coupled to the main controller. A network switch is coupled to the main controller, the motor controller, and a remote controller over respective digital connections. The remote controller has a second interface. The network switches data between the first interface, the second interface, and the motor controller. A network coupler is coupled between a variable frequency drive controller and the motor controller. | 2017-09-14 |
20170264221 | MOTOR DRIVE CIRCUITRY - A motor drive circuit for use in driving a motor having two or more phases comprising a motor bridge having, for each phase of the motor, a bridge arm comprising an upper switch and a lower switch that in normal operation may be opened and closed to modulate the voltage applied to the respective phases in response to drive signals from a motor control circuit, at least one solid state phase isolation relay that is provided in series in an electrical path connecting a respective phase of the motor to a respective bridge arm, the relay being closed in normal operation so that current can flow in the phase and is held open in a fault mode of operation to prevent the flow of current in the phase. The circuit also includes monitoring means for monitoring the current waveform in the phase to provide, at least in a fault mode of operation, an output indicative of when it is safe to open the SSPIR without causing damage due to the SSPIR due to an avalanche mode, and a control circuit that during normal operation applies a voltage to each device that is sufficient to hold the SSPIR closed and which, in the fault mode of operation, responds to the output of the monitoring means to reduce the voltage applied to each SSPIR to a level that causes the SSPIR to open at the safe time. | 2017-09-14 |