Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Abram P. Dancy0
Joshua H. Bretz0
Leif E. LaWhite0
Martin F. Schlecht0
Date of Patent
October 10, 2006
0Patent Application Number
109102350
Date Filed
August 3, 2004
0Patent Primary Examiner
Patent abstract
A DC to DC power converter includes synchronous rectifiers which respond to a control waveform. Negative current from a load into the power converter is prevented by increasing the converter output voltage at a minimum current limit. The synchronous rectifiers may be held off in response to decision logic by activation of a hold-off circuit connected to a control terminal of a synchronous rectifier or of an ORing transistor at the converter output. When the synchronous rectifier is subsequently enabled, its control waveform may be increased slowly relative to the switching cycle.
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