Multiple output self oscillating converter regulator power suppl

Details Multiple output self oscillating converter regulator power suppl Multiple output self oscillating converter regulator power suppl

1976-09-24

1978-05-30

Goldberg, Gerald

Electric power conversion systems

Current conversion

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

323 17, 323 22T, 363 89, 363 91, H02M 3315

Patent

active

040927091

ABSTRACT:
A multiple output switching regulator power supply operates as a self-oscillating circuit with a light weight ferrite core transformer and a sense winding used exclusively for voltage regulation purposes. A power transistor switch is employed to selectively connect the transformer primary across a DC source of power to provide energy storage when the switch is closed and to provide energy transfer when the switch is open, by way of transformer flyback. The power transistor switch is controlled by a feedback circuit which includes a current sink connected to selectively divert current away from the base of the power transistor switch and a timing circuit for controlling the operation of the current sink. A capacitor, connected across the sense winding is monitored by a high gain voltage comparison circuit which activates the timing circuit in dependence on the voltage variation on the capacitor.

REFERENCES:
patent: 3737756 (1973-06-01), Hasley et al.
patent: 3816809 (1974-06-01), Kuster
patent: 3889173 (1975-06-01), Klusmann
patent: 3974439 (1976-08-01), Holland
patent: 3975672 (1976-08-01), Lochocki

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