Flyback switching power supply with bootstrapped gate drive

Details Flyback switching power supply with bootstrapped gate drive Flyback switching power supply with bootstrapped gate drive

1994-09-30

1996-09-24

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 56, H02M 3335, H02H 7122

Patent

active

055596835

ABSTRACT:
Method and apparatus for providing bootstrapped gate drive voltage in a flyback switching power supply. Switching transients and ringing caused by leakage inductance and capacitance in the flyback transformer are captured and used to provide a boosted gate drive voltage for the flyback switch, resulting in lower on resistance and lower switching losses.

REFERENCES:
patent: 4316242 (1982-02-01), Colangelo et al.
patent: 4609980 (1986-09-01), Hoffman
patent: 4761812 (1988-08-01), Hollis et al.
patent: 5390099 (1995-02-01), Rilly et al.
patent: 5394017 (1995-02-01), Catano et al.
patent: 5424932 (1995-06-01), Inou et al.
patent: 5459652 (1995-10-01), Faulk

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