Regulated resonant converter
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United States of America Patent
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-
Aug 10, 1999
Grant Date -
N/A
app pub date -
Mar 11, 1997
filing date -
Mar 23, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A regulated resonant converter comprises a series resonant circuit through which current is switched alternately in opposite directions by a pair of switching transistors, a rectifier via which the switching transistors are fed with d.c. current from an a.c. mains supply input, operation of the switching transistors being controlled by signals generated in a control circuit, in dependence upon a fed-back sample of a convertor output developed in the resonant circuit in accordance with the amplitude of which regulation is effected, and a cross-over voltage associated with current reversal in an inductor which forms a part of the resonant circuit, which cross-over voltage is fed to the control circuit via a differentiator whereby switch operation is effectively enhanced.
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