Motor drive device and electric power steering device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10833614
APP PUB NO 20190312536A1
SERIAL NO

16469660

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A motor drive device includes an inverter circuit, a first switching circuit to switch a path between a power supply and the inverter circuit to conduction and interruption, a second switching circuit to switch a path between the inverter circuit and the motor, a current detector to detect a current of the inverter circuit, a controller to, in a case in which a current value of the detected current is not within a predetermined range, output a command voltage which commands switching from the conduction to the interruption, a driver to boost the command voltage input from the controller and output the boosted command voltage to each switching circuit, and a delay circuit disposed between the second switching circuit and the driver to set a timing at which the command voltage is input to the second switching circuit to be later than a timing at which the command voltage is input to the first switching circuit.

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Patent Owner(s)

  • NIDEC CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujiwara, Hiroki Kyoto, JP 34 118
Kanno, Yoshihisa Kyoto, JP 28 332

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