Switching mode power supply start-up circuit

Details Switching mode power supply start-up circuit Switching mode power supply start-up circuit

1989-10-16

1991-07-16

Beha, Jr., William H.

Electric power conversion systems

Current conversion

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

363 49, H02M 3335

Patent

active

050329707

ABSTRACT:
A start-up circuit for a switching mode power supply is described. The circuit has an initial supply means for initiating pulses from a pulse generator. Latches are used once a stable output current is established to disengage the initial power supply. Thus, the pulse generator and the switching transistor are protected from power surges.

REFERENCES:
patent: 3270270 (1966-08-01), Yemisey
patent: 3350625 (1967-10-01), Larsen
patent: 3470444 (1969-09-01), Bixby
patent: 3549990 (1970-12-01), Hochheiser
patent: 3611117 (1971-10-01), Schneider
patent: 4017787 (1977-04-01), Hara et al.
patent: 4130862 (1978-12-01), Holt
patent: 4389702 (1983-06-01), Clemente et al.
patent: 4686616 (1987-08-01), Williamson
patent: 4695936 (1987-09-01), Whittle

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