Start-up and running circuit for resonant transition power conve

Details Start-up and running circuit for resonant transition power conve Start-up and running circuit for resonant transition power conve

1994-08-12

1997-03-18

Wong, Peter S.

Electric power conversion systems

Current conversion

With starting arrangement

363 17, H02M 7517

Patent

active

056128606

ABSTRACT:
The start-up circuit comprises a large valued resistor and a storage capacitor. A voltage sensing switch is connected to the junction of the resistor and storage capacitor on one hand and a voltage doubler on another. The voltage doubler is fed through a capacitor driven by a pair of switching elements arranged in a bridge configuration. The switching elements are driven by a control circuit which is supplied by the start-up and run circuitry. The output of the bridge feeds a resonant tank which is parallel loaded through the resonant capacitor by means of a transformer.

REFERENCES:
patent: 4992919 (1991-02-01), Lee et al.
patent: 5282126 (1994-01-01), Husgen
patent: 5303137 (1994-04-01), Peterson
patent: 5452195 (1995-09-01), Lehr et al.

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