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Inverter

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


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Control device for rotating electric machine
Mitsubishi Electric Corporation
October 12, 2017 - N°20170294857

A control device for rotating electric machine, which controls a rotating electric machine as a charging electric generator, using an inverter circuit, the control device including: an energization amount generating unit for generating a first electric generation mode in which an energization amount for a field winding and an energization amount for an armature winding of the rotating electric machine ...
Power conversion device including primary inverter, transformer, secondary converter
Panasonic Intellectual Property Management Co., Ltd.
October 12, 2017 - N°20170294845

A power conversion device includes first and second terminals connected to a dc power source, third and fourth terminals connected to a commercial power system or a load, a transformer including a primary winding having seventh and eighth terminals and a secondary winding having fifth and sixth terminals, an inverter circuit connected between the first and second terminals and the ...
Wireless power transmission system
Panasonic Intellectual Property Management Co., Ltd.
October 05, 2017 - N°20170288474

A relay apparatus in a wireless power transmission system includes a relay power reception antenna that receives power transmission alternating current power from a power transmission power transmission antenna, a relay rectifier that converts the power transmission alternating current power into relay direct current power, a relay inverter circuit that converts the relay direct current power into relay alternating current ...
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Inverter controller and on-vehicle fluid machine
Kabushiki Kaisha Toyota Jidoshokki
September 28, 2017 - N°20170279393

An inverter controller is used to control an inverter circuit that drives an electric motor including a rotor and a stator. The inverter controller includes a voltage detector configured to detect input voltage, a current detector configured to detect motor current, an instruction value calculation unit configured to calculate an instruction value based on an external instruction value and a ...
Soft switching technique for a grid-tied inverter
Sunpower Corporation
September 28, 2017 - N°20170279375

A method, system, and computer-readable medium facilitate a soft switching technique for operating an inverter. In a full bridge inverter, a one of first set of transistors in the inverter may be rapidly activated and deactivated in pulses while one of a second set of transistor may be activated during a switching time period where the inverter matches the voltage ...
Power module
Toyota Jidosha Kabushiki Kaisha
September 28, 2017 - N°20170279366

A power module includes an inverter circuit and a pair of conductors that sandwich the inverter circuit. The inverter circuit includes a positive bus bar, a negative bus bar, output bus bars, and element pairs. The element pair has such a configuration that a semiconductor element coupled to the positive bus bar and a semiconductor element coupled to the negative ...
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In-vehicle inverter device and in-vehicle fluid machine
Kabushiki Kaisha Toyota Jidoshokki
September 28, 2017 - N°20170274735

An in-vehicle inverter device includes a noise reduction circuit, which has a common mode choke coil configured to reduce common mode noise and normal mode noise contained in dc power, and an inverter circuit, which receives the dc power in which the noise has been reduced. The noise reduction circuit includes: an input-side capacitor and an input-side resistor provided on ...
Oscillation circuit, booster circuit, and semiconductor device
Sii Semiconductor Corporation
September 21, 2017 - N°20170272060

Provided are an oscillation circuit, a booster circuit, and a semiconductor device capable of reducing power consumption when a power supply voltage is high. In a ring oscillator circuit which is the oscillation circuit, a pmos transistor in each of inverter circuits has a substrate connected to a first power supply voltage, and a source connected to a drain of ...
Wireless power transmission system and power transmission apparatus
Panasonic Intellectual Property Management Co., Ltd.
September 21, 2017 - N°20170271927

A power transmission apparatus includes an inverter circuit, a power transmission antenna that wirelessly transmits alternating current power output from the inverter circuit, and a power transmission control circuit that causes the inverter circuit to output the alternating current power. The power transmission control circuit causes the inverter circuit to output the alternating current power as binary communication data by ...
Inverter circuit, and air conditioner and refrigerator using the same
Samsung Electronics Co., Ltd.
September 14, 2017 - N°20170264186

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 ...
Centralized mppt exiting and switching method and application thereof
Sungrow Power Supply Co., Ltd.
September 14, 2017 - N°20170264099

Disclosed is a centralized mppt exiting method for a photovoltaic inverter comprising multiple dc chopper circuits and one inverter circuit. The method comprises: when the photovoltaic inverter is in a centralized mppt mode, mppt control is implemented independently for each photovoltaic cell in a photovoltaic component and the maximum power point for each photovoltaic cell is obtained; a reference value ...
Apparatus for discharging a high-voltage bus
Gm Global Technology Operations Llc
September 07, 2017 - N°20170257039

A power inverter includes a multi-phase inverter circuit electrically connected to positive and negative conductors of the high-voltage bus. A bi-stable switch is electrically connected in series with a discharge resistor between the positive and negative conductors of the high-voltage bus, and a capacitor is electrically connected between the positive and negative conductors of the high-voltage bus. First and second ...
Apparatus for discharging a high-voltage bus
Gm Global Technology Operations Llc
September 07, 2017 - N°20170256972

A power inverter including a multi-phase inverter circuit is electrically connected to a high-voltage dc power source, and includes a capacitor electrically connected between positive and negative conductors of a high-voltage bus. A normally-on discharge switch is electrically connected in series with a discharge resistor between the positive and negative conductors of the high-voltage bus. The discharge switch includes a ...
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Bonding p-type and n-type sheets to form complementary circuits
Polyera Corporation
August 17, 2017 - N°20170236874

A method for fabricating at least a portion of a complementary circuit, such as a complementary inverter circuit, includes fabricating a first sheet and a second sheet. Each of the sheets includes metal layers, a dielectric layer, and a semiconductor channel layer, configured so as to form a plurality of transistors of a respective polarity (i. E., p-type for one ...
Power quad flat no-lead (pqfn) package in a single shunt inverter circuit
Infineon Technologies Americas Corp.
August 10, 2017 - N°20170229383

According to an exemplary implementation, a power quad flat no-lead (pqfn) package includes a driver integrated circuit (ic) situated on a leadframe. The pqfn package further includes low-side u-phase, low-side v-phase, and low-side w-phase power switches situated on the leadframe. A logic ground of the leadframe is coupled to a support logic circuit of the driver ic. A power stage ...
Switching power supply unit
Tdk Corporation
August 03, 2017 - N°20170222562

A switching power supply unit includes an n-number (n: an integer of 2 or greater) of transformers; an n-number of inverter circuits; a rectifying smoothing circuit including a {2×(n+1)}-number of rectifying devices, a choke coil, and a capacitor; an additional winding disposed to be interlinked with each of magnetic paths formed in the n-number of transformers; and a driver. ...
Overvoltage limiting of ac voltage generation
Trumpf Huettinger Gmbh + Co. Kg
August 03, 2017 - N°20170222543

An overvoltage limitation device, for an alternating current (ac) voltage generating system having an inverter circuit unit configured to supply power to a load with dynamic load impedance, includes: input connections for connection to the inverter circuit unit, output connections for connection to an intermediate circuit voltage unit connected to the inverter circuit unit, a rectifier including an alternating current ...
Electric power conversion apparatus
Hitachi, Ltd.
July 27, 2017 - N°20170215304

An electric power conversion apparatus includes a channel case in which a cooling water channel is formed; a double side cooling semiconductor module that has an upper and lower arms series circuit of an inverter circuit; a capacitor module; a direct current connector; and an alternate current connector. The semiconductor module includes first and second heat dissipation metals whose outer ...
Starting device for a cdm lamp and starting method for the same
Hitachi, Ltd.
July 27, 2017 - N°20170215263

The present disclosure relates to a starting device for a cdm lamp, comprising: a full-bridge inverter, which at least provides an output as a starting power source to initiate the cdm lamp to work normally; a driving circuit for driving the full-bridge inverter; a single-chip microcomputer, which is connected to the driving circuit; an ignition determining module, one end of ...
Light attenuation controlling apparatus and method for a cdm lamp
Hitachi, Ltd.
July 27, 2017 - N°20170215262

The present disclosure relates to a light attenuation controlling apparatus for a cdm lamp, comprising: a full-bridge inverter as a power source to supply an output to the cdm lamp; a driving circuit for driving the full-bridge inverter; a single-chip microcomputer connected to the driving circuit; a tube voltage sensing module, one end of which is connected to the full-bridge ...
Brushless motor and washing machine provided with same
Panasonic Intellectual Property Management Co., Ltd.
July 27, 2017 - N°20170214358

A brushless motor for a washing machine is provided, and the brushless motor includes: a motor including a stator around which a winding wire is wound and a rotor holding a permanent magnet; a motor control microcomputer; an inverter circuit in which a power element is incorporated and controls an amount of a voltage applied to the winding wire; a ...
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