Apparatus and methods for sensing resonant circuit signals to enhance control in a resonant converter

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United States of America Patent

PATENT NO 11522464
APP PUB NO 20200336075A1
SERIAL NO

16923066

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Apparatus and methods for sensing resonant circuit signals to enhance control in a resonant converter are described herein. A buffer circuit coupled in parallel with or across a resonant component (e.g., a transformer) input port avails a buffered primary port signal for use in resonant conversion. The buffered primary port signal is a comprehensive signal including information relating to both input voltage and input power; and it may be used to advantageously enhance switching and power conversion in an inductor-inductor capacitor (LLC) converter. Additionally, the LLC converter uses a sense interface circuit to provide a scaled replica of the buffered primary port signal. In one example the scaled replica can advantageously be used with a secondary side controller to control output power based on the comprehensive information contained within the buffered primary port signal.

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Patent Owner(s)

  • POWER INTEGRATIONS INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Colbeck, Roger Ottawa, CA 33 413
Horwitz, Hartley Fred Ottawa, CA 15 90
Mayell, Robert J Los Altos, US 42 198
Schulz, Frank Joseph Ottawa, CA 6 22

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