Method of controlling switching regulator
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United States of America Patent
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Aug 30, 1994
Grant Date -
N/A
app pub date -
Oct 30, 1992
filing date -
Nov 13, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of controlling a current resonant parallel type switching regulator comprises providing a current circulating circuit for preventing a circuit loss increasing phenomenon from occurring due to an increase in a resonant current caused by an increase in a resonant voltage when an output load current is reduced, forming a closed circuit which connects the opposite terminals of a resonant circuit for inverting the polarity of the charge on the resonant circuit once, and then starting the operation of the regulator. The resonant current is reduced so that an excessive power is not supplied at a low load. Stresses on the switching elements and circuit losses are minimized.
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