Single stage LED driver system, control circuit and associated control method

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United States of America Patent

PATENT NO 9485819
APP PUB NO 20150208472A1
SERIAL NO

14603245

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Abstract

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A light-emitting element driver system has a power conversion circuit, a second switch and a control circuit, the power conversion circuit has a primary circuit, a transformer, a first rectified circuit and a second rectified circuit, the second rectified circuit provides a first signal, the second switch has a first terminal coupled to an output terminal of the first rectified circuit and a second terminal to provide a second signal, when a dimming signal is in a first state, the control circuit provides a first control signal to control the power conversion circuit based on the first signal, and meanwhile provides a second control signal to control the second switch based on the second signal.

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Patent Owner(s)

Patent OwnerAddress
CHENGDU MONOLITHIC POWER SYSTEMS CO LTDNO 8 KEXIN ROAD WEST ZONE OF HI-TECH ZONE CHENGDU SICHUAN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Bairen Hangzhou, CN 14 142
Qin, Hongqiang Hangzhou, CN 5 39
Sheng, Licheng Hangzhou, CN 5 55
Yang, Eric Saratoga, US 81 8860
Yu, Bo Hangzhou, CN 288 1714
Zhao, Qiming Hangzhou, CN 21 212

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