Reverse recovery circuit, method of operation thereof and asymmetrical half-bridge power converter
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United States of America Patent
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Dec 17, 2002
Issued Date -
N/A
app pub date -
Feb 9, 2001
filing date -
Feb 9, 2001
priority date (Note) -
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Abstract
For use with an asymmetrical half-bridge power converter having a primary switching circuit coupled to a primary winding of a transformer and a rectifier coupled to a secondary winding of the transformer, a reverse recovery circuit a method of operation thereof. In one embodiment, the reverse recovery circuit includes an inductor that reduces current spikes in the primary switching circuit caused by a reverse recovery phenomenon associated with the rectifier. The reverse recovery circuit also includes a diode, coupled to the inductor, that clamps a voltage across the rectifier.
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