US Patent 6894468 Control of DC/DC converters having synchronous rectifiers
Patent 6894468 was granted and assigned to Synqor on May, 2005 by the United States Patent and Trademark Office.
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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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Patent Inventor Names
Abram P. Dancy0
Joshua H. Bretz0
Leif E. LaWhite0
Martin F. Schlecht0
Date of Patent
May 17, 2005
0Patent Application Number
096113830
Date Filed
July 7, 2000
0Patent Primary Examiner
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US Patent 6894468 Control of DC/DC converters having synchronous rectifiers
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