Active gate clamp circuit for self driven synchronous rectifiers

Active gate clamp circuit for self driven synchronous rectifiers

A DC-DC converter circuit includes a transformer with a resonate filter or snubber connected at a primary side and a switch for controlling operation of the converter. A secondary side of the transformer includes self-driven synchronous rectifiers (64,66) and an output filter. Transistors (58,60) ar...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PRIEGNITZ, ROBERT A, DEVRIES JR., CHARLES A
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Beschreibung
Zusammenfassung:A DC-DC converter circuit includes a transformer with a resonate filter or snubber connected at a primary side and a switch for controlling operation of the converter. A secondary side of the transformer includes self-driven synchronous rectifiers (64,66) and an output filter. Transistors (58,60) are provided at the gate leads of the rectifiers and themselves are provided with a fixed voltage (62) at their gates so as to clamp the peak voltages across to the rectifiers.