POWER SWITCH CONTROLLERS AND METHODS USED THEREIN FOR IMPROVING CONVERSION EFFECIENCY OF POWER CONVERTERS
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United States of America Patent
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Issued Date -
Dec 20, 2012
app pub date -
Jun 20, 2011
filing date -
Jun 20, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Power switch controllers and methods used therein are disclosed. An exemplifying power switch controller includes a window provider, a sensor and a logic controller. The window provider provides minimum and maximum time signals to indicate the elapses of a minimum time and a maximum time, respectively. The sensor detects a terminal of an inductive device, to generate a trigger signal. The logic controller prevents a power switch connected to the inductive device from being turned on before the elapse of the minimum time, forces the power switch to be turned on after the elapse of the maximum time, and turns on the power switch if the trigger signal is asserted.
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