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Inverter

Inverter-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Electric drive device and control method for same
Mitsubishi Electric Corporation
January 04, 2018 - N°20180006594

Provided is an electric drive device which controls a current supplied to coils during normal operation so as to be less than a current limit value when normal, which is determined from heat generating properties and heat radiating properties of a thermally coupled body that includes the coils and an inverter circuit. When an abnormality in each group or each ...
Systems, methods, and devices for simultaneous wireless and wired power transfer
The Board Of Trustees Of The University Of Alabama
January 04, 2018 - N°20180006555

Systems, devices, controllers, and methods for simultaneous transfer of wireless and wired power are described herein. An example device can include a power converter or inverter circuit having a switch, a power inductor, a wired power output loop for delivering wired power to a wired load, and a wireless power output loop for delivering wireless power to a wireless load. ...
Radiation irradiation device
Fujifilm Corporation
December 28, 2017 - N°20170374728

Provided is a radiation irradiation device that can improve the degree of freedom of an arm part and can reduce the number of noise suppression components, such as a ferrite core. A radiation irradiation device includes a radiation generating part having a radiation source that generates radiation; an arm part having the radiation generating part attached to one end thereof; ...
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Power conversion device for electric vehicle
Toyota Jidosha Kabushiki Kaisha
December 28, 2017 - N°20170373628

A power conversion device includes a main battery, an auxiliary battery, an inverter circuit, a high-voltage wiring, a smoothing capacitor, a main wiring, a subsidiary wiring, a dc-dc converter and a controller. The dc-dc converter is connected to a high-potential wire of the main wiring, a low-potential wire of the main wiring, a high-potential wire of the subsidiary wiring, a ...
Wireless power transmitter and receiver for vehicle
Lg Electronics Inc.
December 28, 2017 - N°20170368945

According to an embodiment of present invention, a wireless power transmitter for a vehicle that transfers power to a wireless power receiver includes: a coil assembly comprising first and second bottom coils placed adjacent to each other in a line and each consisting of a single layer of 11 turns and a top coil stacked on the first and second bottom ...
Device and method of monolithic integration of microinverters on solar cells
The Regents Of The University Of Michigan
December 21, 2017 - N°20170366135

A method of fabricating a photovoltaic cell having a microinverter is provided. The method may include fabricating a monolithic microinverter layer through epitaxy and operably connecting the at least one microinverter layer to at least one photovoltaic cell formed on a photovoltaic layer. A photovoltaic device is also provided. The device may have a photovoltaic layer comprising at least one ...
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Permanent-magnet three-phase duplex motor and electric power steering apparatus
Mitsubishi Electric Corporation
December 21, 2017 - N°20170366115

A permanent-magnet three-phase duplex motor is provided with two systems, namely a system that includes a first three-phase winding and a first inverter circuit, and a system that includes a second three-phase winding and a second inverter circuit, and a controlling apparatus is configured such that when one system fails, the controlling apparatus stops operation of the inverter circuit of ...
Semiconductor device, method for manufacturing semiconductor device, inverter circuit, driving device, vehicle, and elevator
Kabushiki Kaisha Toshiba
December 21, 2017 - N°20170365709

A semiconductor device according to an embodiment includes a sic layer having a first and a second plane, a first sic region of a first conductivity type, second and third sic regions of a second conductivity type provided between the first sic region and the first plane, a fourth sic region of the first conductivity type provided between the second ...
Semiconductor device, inverter circuit, driving device, vehicle, and elevator
Kabushiki Kaisha Toshiba
December 21, 2017 - N°20170365664

A semiconductor device according to an embodiment, includes: a silicon carbide layer; a gate electrode; and a gate insulating layer, the gate electrode including a p-type silicon carbide region containing aluminum, the gate insulating layer having a first region and a second region, the first region including a silicon oxide or a silicon oxynitride, the second region being positioned between ...
Photovoltaic air-conditioning system and photovoltaic air conditioner having same
Gree Electric Appliances, Inc. Of Zhuhai
December 14, 2017 - N°20170358926

Disclosed are a photovoltaic air-conditioning system and a photovoltaic air conditioner having same. The photovoltaic air-conditioning system comprises a photovoltaic battery, a switch module, an inverter circuit, a rectification circuit and a compressor inverter; an input end of the switch module is electrically connected to a power grid; a first output end of the switch module is electrically connected to ...
Controller and a method to drive an inverter circuit for a permanent-magnet synchronous motor
Robert Bosch Engineering And Business Solutions Private Limited
December 07, 2017 - N°20170353140

A controller is provided to drive an inverter circuit for a pmsm. The inverter circuit is connected to a battery through a dc link capacitor, and is driven in one safe state during a fault condition. The controller monitors at least one parameter with respective threshold value to drive the inverter circuit in one safe state comprising an active short ...
Controller-integrated rotating electrical machine
Denso Corporation
November 30, 2017 - N°20170346429

A controller-integrated rotating electrical machine incudes a rotating electrical machine and a control device. The rotating electrical machine is equipped with a stator and a rotor. The control device is equipped with a control circuit for an inverter circuit and an angle position sensing device which works to measure an angular position of the rotor. The control device has first ...
Charge-discharge control apparatus and charge-discharge control apparatus method
Toshiba Tec Kabushiki Kaisha
November 30, 2017 - N°20170346330

According to an embodiment, a charge-discharge control apparatus includes a rectifier-voltage decrease detector circuit and an over-discharge suppression controller circuit. On the condition that the rectifier-voltage decrease detector circuit detects that voltage output from a rectifier circuit of a power-receiving device is decreased below a voltage threshold, the over-discharge suppression controller circuit suppresses over-discharge of an inverter circuit of a ...
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Organic inverter and method of forming the same
Agency For Science, Technology And Research
November 30, 2017 - N°20170345871

Various embodiments provide a method of forming an organic inverter including a first transistor and a second transistor. The method may include providing a substrate with a dielectric layer formed on top of the substrate; depositing a first semiconductor polymer layer on a first region of the dielectric layer; forming a first electrode and a second electrode on the first ...
Semiconductor device, method for manufacturing semiconductor device, inverter circuit, driving device, vehicle, and elevator
National Institute For Materials Science
November 30, 2017 - N°20170345657

A semiconductor device according to an embodiment includes a silicon carbide layer, a gate electrode, and a silicon oxide layer disposed between the silicon carbide layer and the gate electrode, a number of single bonds between carbon atoms being larger than that of double bonds between carbon atoms in the silicon oxide layer.
Electric tool
Hitachi Koki Co., Ltd.
November 30, 2017 - N°20170341213

In order to provide an electric tool with good operability that can extend the life of and suppress breakage of a switching element for controlling energization of a brushless motor, a control unit (50), after an operation switch (5) is turned off, does not immediately turn off an inverter circuit (43) (does not set the duty of a pwm signal to 0), and instead ...
Power conversion apparatus and power semiconductor module
Mitsubishi Electric Corporation
November 23, 2017 - N°20170338734

A power conversion apparatus includes a main capacitor to store therein dc power, and an inverter circuit to convert the dc power stored in the main capacitor to ac power. The main capacitor and a power semiconductor element that constitutes the inverter circuit are connected to each other by a p-side common wire through which a switching current flows. A ...
Motor control device
Omron Automotive Electronics Co., Ltd.
November 16, 2017 - N°20170331399

A motor control device includes: an inverter circuit including a semiconductor switching element for drive which drives a motor; a cut-off circuit including a semiconductor switching element for cut-off which cuts off an electric connection between the motor and the inverter circuit; a failure detection unit; a rotation number detection unit; and a control unit. In a case where the ...
Inverter device
Mitsubishi Electric Corporation
November 16, 2017 - N°20170331391

An inverter includes: a converter circuitry to convert an alternating-current voltage to a direct-current voltage; an inverter circuitry to convert a direct-current voltage obtained by conversion by the converter circuitry to an alternating-current voltage and to supply the alternating-current voltage obtained by conversion to a load; a current detector to detect an output current of the inverter circuitry; a calculator ...
Intelligent cooperative control system and method for multi-unit permanent magnet synchronous motor
Shenyang University Of Technology
November 09, 2017 - N°20170324361

An intelligent cooperative control system and method thereof. A parallel structure for low-voltage multi-module permanent magnet synchronous motor cooperative control units is adopted to realize control of low-voltage high power, control of low-speed large torque and system redundancy control; a double-parallel pwm rectifier circuit structure is used, when the system is in unbalanced power supply network environments; a resonant pole-type ...
Apparatus and methods of controlling electric drive with reconfigurable winding
Gm Global Technology Operations Llc
October 26, 2017 - N°20170310263

An electric drive system for a three-phase pm electric machine. The drive system includes a split stator winding for each phase of the machine including a first winding section and a second winding section, and an inverter circuit including a pair of inverter switches for each phase, where the pair of inverter switches for each phase is electrically coupled to ...
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