Switched power supply comprising a free-running flow converter a

Details Switched power supply comprising a free-running flow converter a Switched power supply comprising a free-running flow converter a

1985-08-05

1987-03-31

Beha, Jr., William H.

Electric power conversion systems

Current conversion

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

363 37, H02M 3338

Patent

active

046547711

ABSTRACT:
A switched power supply has a rectifier arrangement for generating a DC voltage from an input AC voltage. A converter arangement in the power supply has a switching transistor and a transformer. The converter arrangement is designed as a free-running flow converter, whereby the switching transistor is switched on in the current-free condition. A control stage with an electrically separated control loop is provided at the secondary side, whereby the control stage acquires the deviation of an output DC voltage from a prescribed value and sets the pulse duty factor for the switching transistor via the control loop.

REFERENCES:
patent: 4328537 (1982-05-01), Schmidtner et al.
patent: 4378585 (1983-03-01), Bete
patent: 4443838 (1984-04-01), Yamada
patent: 4573112 (1986-02-01), Numata et al.
"Schaltnetzteile" by Joachim Wustehube, 1979, Expert-Verlag, Chapter 2.1.

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