Series resonant inverter with integrating feedback control loop

Details Series resonant inverter with integrating feedback control loop Series resonant inverter with integrating feedback control loop

1983-12-12

1988-07-12

Beha, Jr., William H.

Electric power conversion systems

Current conversion

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

363 98, H02M 3337

Patent

active

047574321

ABSTRACT:
Current flow in a transistorized series resonant inverter is switched in an inherently simple and stable manner by time integrating the difference between the electrical output and a reference and varying the switching frequency of the inverter so as to null the time integrated difference in a feedback control loop. Each transistor is on for about half the resonant period of the tank circuit so that it is cut off at or slightly after the zero-crossing of the sinusoidal collector current.

REFERENCES:
Resonant Zero Crossover DC-to-DC Converter, R. W. Carlsten, Jan. 1980, IBM Technical Disclosure Bulletin, vol. 22, No. 8B.
DC-to-DC Power Converter, Q. L. Benedict, J. M. Joyce and W. R. Wheeler, Oct. 1980, IBM Technical Disclosure Bulletin, vol. 23, No. 5.

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