DC to DC converter apparatus employing push-pull oscillators

Details DC to DC converter apparatus employing push-pull oscillators DC to DC converter apparatus employing push-pull oscillators

1991-03-12

1991-12-03

Stephan, Steven L.

Electric power conversion systems

Current conversion

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

363 24, 323266, 323907, H02M 3337

Patent

active

050704397

ABSTRACT:
A DC to DC converter employs a push-pull oscillator which employs a transformer having a primary winding and a plurality of secondary windings. The transformer has a core which is of a square loop hysteresis type. The push-pull oscillator is supplied operating voltage by means of a voltage regulator circuit which operates to regulate the voltage applied to the push-pull oscillator according to both input voltage variations and output load variations. An output secondary winding of the transformer is coupled to a full wave rectifier. The full wave rectifier output is fed back to the regulator to control the voltage applied to the push-pull oscillator via the regulator. Due to circuit operation, the output voltage is extremely well regulated while having low ripple.

REFERENCES:
patent: 4150423 (1979-04-01), Boschert
patent: 4755923 (1988-07-01), Maeba et al.
patent: 4783795 (1988-11-01), Yahata
patent: 4905136 (1990-02-01), Tanaka
patent: 5029062 (1991-07-01), Capel

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