Bootstrap drive for a two-transistor forward converter

Details Bootstrap drive for a two-transistor forward converter Bootstrap drive for a two-transistor forward converter

1985-03-01

1986-06-10

Wong, Peter S.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 21, 363131, H02H 7122, H02M 7537

Patent

active

045946493

ABSTRACT:
A DC to DC voltage converter of the type having one switching transistor on the top side of the transformer and a second switching transistor on the bottom side. Opposite ends of the transformer are diode clamped to the bottom rail reference voltage. A bootstrap winding configuration taken from the top of the transformer drives the top switching transistor to eliminate the need for a tertiary winding. A pulse width modulated circuit drives the bottom transistor.

REFERENCES:
patent: 3697852 (1972-10-01), Gerbitz
patent: 3946301 (1976-03-01), Love
patent: 4318168 (1982-03-01), Faxon

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