Reverse biasing active snubber
AssigneeTyco Electronics Power Systems, Inc.
InventorRobert J. Taylor
Life of this patent
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Abstract
The present invention provides a transient suppression circuit for use with a rectifier coupled to a transformer. In one embodiment, the transient suppression circuit includes a triggering section configured to provide a timing signal corresponding to a dead time of the rectifier. Additionally, the transient suppression circuit also includes a biasing section coupled to the triggering section and configured to apply a reverse bias voltage to the rectifier based on the timing signal.
Claims27
A transient suppression circuit for use with a rectifier coupled to a transformer, comprising:
- a triggering section configured to provide a timing signal corresponding to a dead time of the rectifier;
- and
- a biasing section coupled to the triggering section and configured to apply a reverse bias voltage to the rectifier based on the timing signal.
A method of operating a transient suppression circuit for use with a rectifier coupled to a transformer, comprising:
- providing a timing signal corresponding to a dead time of the rectifier;
- and
- applying a reverse bias voltage to the rectifier based on the timing signal.
A power converter, comprising:
- a primary circuit having primary switches to couple a DC voltage source to a primary winding of a transformer;
- a rectifier coupled between a secondary winding of the transformer and an output filter circuit;
- and
- a transient suppression circuit coupled to the rectifier, including:
- a triggering section that provides a timing signal corresponding to a dead time of the rectifier, and
- a biasing section, coupled to the triggering section, that applies a reverse bias voltage to the rectifier based on the timing signal.
Dependencies are inferred from the claim text.