Self-referencing power converter

Details Self-referencing power converter Self-referencing power converter

1978-09-19

1980-09-30

Miller, J. D.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

323 21, 323DIG1, H02P 1320

Patent

active

042259134

ABSTRACT:
A self-referencing power converter operates at a high frequency with a low loss, light weight ferrite core transformer. The transformer primary is selectively connected across a DC source of rectified AC power to provide energy storage followed by a predetermined time period of disconnect to provide energy transfer by way of transformer flyback. The energy storage cycle begins when the voltage across the primary winding of the transformer does not exceed a predetermined value and the predetermined time period of disconnect has ended. A current sensing circuit senses the current flowing through the primary winding, permitting such current to flow until a power reference is reached. A comparison circuit in the transformer secondary compares a reference voltage with an operating voltage and returns any error voltage to the primary circuit, the error voltage then being used to set the power reference.

REFERENCES:
patent: 3916281 (1975-10-01), Owen
patent: 4001663 (1977-01-01), Bray
patent: 4037271 (1977-07-01), Keller
patent: 4092709 (1978-05-01), Voigt et al.
patent: 4130862 (1978-12-01), Holt
patent: 4135234 (1979-01-01), Forge
patent: 4146832 (1979-03-01), McConnell

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