Flyback type switching power source device

Details Flyback type switching power source device Flyback type switching power source device

1977-11-02

1979-10-23

Pellinen, A. D.

Electric power conversion systems

Current conversion

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

363124, H02M 3335

Patent

active

041722760

ABSTRACT:
A flyback type switching power source device alternately having a time during which energy is stored in a transformer and a time during which the stored energy is taken out. A current flowing into the primary winding of the transformer or out of the secondary winding thereof is detected, and the current thus detected is converted into a DC voltage proportional to the magnitude thereof. Furthermore, a voltage resulting from superimposition of the DC voltage upon a reference voltage is compared with a DC voltage resulting from conversion of a voltage induced in a tertiary winding of the transformer during the time for taking out the energy stored in the transformer to control the time during which energy is stored in the transformer.

REFERENCES:
patent: 3295042 (1966-12-01), Evalds et al.
patent: 3702961 (1972-11-01), Erickson
patent: 3928793 (1975-12-01), Waltz
patent: 4034281 (1977-07-01), Morita et al.
patent: 4068158 (1978-01-01), Hicks et al.

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