Single-phase and three-phase compatible ac-dc conversion circuit and method of detecting input current thereof

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12244214
APP PUB NO 20230035838A1
SERIAL NO

17714841

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Abstract

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An AC-DC conversion circuit provides a three-phase power source. The AC-DC conversion circuit includes a first inductor, a second inductor, a third inductor, a switch bridge arm assembly, and a control unit. The switch bridge arm assembly includes three switch bridge arms, and each switch bridge arm includes an upper switch and a lower switch. A plurality of common-connected nodes between the upper switches and the lower switches are coupled to the three-phase power source through the first inductor, the second inductor, and the third inductor. The control unit turns on the upper switch and the lower switch to provide a current detection loop. The control unit acquires a magnitude of a first current flowing through the first inductor and a magnitude of a third current flowing through the third inductor, and determines whether a current detection mechanism of the first current and the third current is normal.

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Patent Owner(s)

  • DELTA ELECTRONICS INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Nian-Ci Taoyuan, TW 1 1
Chuang, Chih-Yuan Taoyuan, TW 74 224
Hsueh, Cheng-Hao Taoyuan, TW 1 1
Li, Cheng-Te Taoyuan, TW 3 1

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