Noise control circuit for a switching mode power supply and a method thereof

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12249907
APP PUB NO 20230170788A1
SERIAL NO

17983544

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Abstract

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A noise control circuit of a switching mode power supply is disclosed. The switching mode power supply has a primary switch, a secondary switch and a transformer with a primary winding and a secondary winding. The noise control circuit includes a reverse noise generating circuit having a first input terminal coupled to a first pulse terminal or a second pulse terminal of the primary switch, a second input terminal configured to receive an adjusting signal, and an output terminal configured to provide a noise control signal. The secondary winding has a first terminal and a second terminal. The noise control signal is coupled to either terminal of the secondary winding of the transformer.

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Patent Owner(s)

  • CHENGDU MONOLITHIC POWER SYSTEMS CO., LTD.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Hui Hangzhou, CN 1361 15841
Wang, Shuai Hangzhou, CN 194 423

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