Inverter device for capable of performing overheating protection to switching elements when driving electric motor and control method thereof

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12255545
APP PUB NO 20220385207A1
SERIAL NO

17752875

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The disclosure provides an inverter device for driving an electric motor, including: an inverter circuit including a plurality of switching elements; and a control circuit controlling the inverter circuit. When a rotation speed of the electric motor is equal to or less than a preset rotation speed threshold and a torque of the electric motor is equal to or greater than a preset torque threshold, the control circuit changes a temperature estimation logic of the switching elements of the inverter circuit.

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Patent Owner(s)

  • NIDEC ELESYS CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Katsumata, Jun Kanagawa, JP 16 372
Watanabe, Toshiyuki Kanagawa, JP 201 1981
Yoshioka, Hirotaka Kanagawa, JP 13 59

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