Power converter with surge voltage suppression

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United States of America Patent

PATENT NO 9071166
APP PUB NO 20130170268A1
SERIAL NO

13809589

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A motor drive system wherein an LC circuit exists between an inverter and a motor is such that switching of semiconductor switching elements Su to Sw and Sx to Sz configuring the inverter is controlled by an on-signal formed of a first on-signal, a second on-signal, and an off-state period of a time the same as the first on-signal provided between the first on-signal and second on-signal, and by an off-signal formed of a first off-signal, a second off-signal, and an on-state period of a time the same as the first off-signal provided between the first off-signal and second off-signal, and surge voltage applied to an input terminal of the motor is suppressed by the time of the first on-signal and the time of the second off-signal being set to one-sixth of a resonance cycle specific to the LC circuit.

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First Claim

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Patent Owner(s)

  • FUJI ELECTRIC CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mino, Kazuaki Hino, JP 23 166
Yamada, Ryuji Hachioji, JP 112 554

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