Method and circuit configuration for increasing the efficiency o

Details Method and circuit configuration for increasing the efficiency o Method and circuit configuration for increasing the efficiency o

1989-11-07

1991-07-16

Beha, Jr., William H.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363131, H02M 7537, H02M 7538

Patent

active

050329723

ABSTRACT:
A method and circuit configuration for closed-loop control of trigger signals of switching transistors in a resonant converter power supply circuit element having closed-loop control dependent on a zero crossing recognition, wherein a prematurely responding zero crossing detector is provided, includes comparing a period of time between the generation of a trigger signal and the switching of a power transistor with a time interval between a premature response of a zero crossing detector and an actual zero crossing. This is done in order to obtain a closed-loop control signal for controlling a deviation action threshold of the zero crossing detector.

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