Synchronous rectifier type DC-to-DC converter in which a saturab

Details Synchronous rectifier type DC-to-DC converter in which a saturab Synchronous rectifier type DC-to-DC converter in which a saturab

1996-10-02

1998-03-10

Nguyen, Matthew V.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 97, H02M 3335

Patent

active

057268690

ABSTRACT:
Disclosed is a synchronous rectifier type DC-to-DC converter capable of preventing an increase in losses occurring when a rectifier synchronous rectification switch and a flywheel synchronous rectification switch, which are responsible for rectification on the side of a secondary winding of a transformer, are turned on simultaneously, and the destruction of FETs or windings due to large currents. The DC-to-DC converter comprises a transformer, a primary switching device connected in series with a primary winding of the transformer, a control circuit for controlling turning on or off of the primary switching device, a rectifier synchronous rectification switching device, and a flywheel synchronous rectification switching device, and converts a voltage of a DC power source into another voltage. The DC-to-DC converter further comprises a rectifier rise delay inductive device connected in series with the rectifier synchronous rectification switching device and a flywheel rise delay inductive device connected in series with the flywheel synchronous rectification switching device.

REFERENCES:
patent: 3697851 (1972-10-01), Mast
patent: 4021720 (1977-05-01), Linnman
patent: 4441146 (1984-04-01), Vinciarelli
patent: 4977493 (1990-12-01), Smith
patent: 5434768 (1995-07-01), Jitaru et al.

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