Common-mode (CM) electromagnetic interference (EMI) reduction in resonant converters

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United States of America Patent

PATENT NO 10333410
APP PUB NO 20180074538A1
SERIAL NO

15682989

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An apparatus includes: a first inductor coupled to a first node and a second node; a second inductor coupled to a third node and a fourth node; a third inductor coupled to the fourth node and a fifth node, wherein the first inductor, the second inductor, and the third inductor form a transformer; and a compensation capacitor coupled to the fourth node and one of the first node and the second node and including, a compensation capacitance. A method of manufacturing a resonant converter, the method includes: obtaining the resonant converter, wherein the resonant converter includes a transformer; determining a parasitic capacitance of the transformer; calculating a compensation capacitance based on the parasitic capacitance; and adding a compensation capacitor across the transformer, wherein the compensation capacitor includes the compensation capacitance.

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Patent Owner(s)

  • FUTUREWEI TECHNOLOGIES INC.; UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dai, Heping Plano, US 84 675
Wang, Shuo Gainesville, US 171 1083
Zhang, Huan Gainesville, US 89 189

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