Control circuit of a synchronous rectification type DC-DC conver

Details Control circuit of a synchronous rectification type DC-DC conver Control circuit of a synchronous rectification type DC-DC conver

1998-07-30

2000-07-18

Riley, Shawn

Electricity: power supply or regulation systems

Output level responsive

Phase controlled switching using electronic tube or a three...

323901, G05F 1613

Patent

active

060912340

ABSTRACT:
A DC-DC convertor is used as a power source for an electronic apparatus. In this converter, a synchronous rectification transistor is provided in parallel with a flywheel diode. A control circuit of the converter is configured in such a way that a synchronous rectification transistor isolating unit for compulsorily turning off the synchronous rectification transistor for a predetermined fixed period of time, at the activation time of the DC--DC convertor, is included.

REFERENCES:
patent: 5602464 (1997-02-01), Linkowsky et al.
patent: 5781000 (1998-07-01), Saeki et al.

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