Three-phase AC control apparatus and three-phase AC control system

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United States of America Patent

PATENT NO 11349412
APP PUB NO 20200195167A1
SERIAL NO

16711720

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A three-phase AC control apparatus includes: an equal duty sensing circuit; and a PWM signal control circuit. The equal duty sensing circuit senses whether any two of a U-phase, a V-phase, and a W-phase of a three-phase AC current have an equal duty value. The PWM signal control circuit outputs, when it is sensed that any two of the U-phase, the V-phase, and the W-phase of the three-phase AC current have the equal duty value, a control signal that shifts a timing of start and a timing of stop of one of the two phases having the equal duty value.

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Patent Owner(s)

  • NABTESCO CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jinno, Takayuki Tokyo, JP 27 83
Ogawa, Takashi Tokyo, JP 318 3020
Okuno, Yoshiaki Tokyo, JP 45 400

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