POWER CONTROLLERS AND CONTROL METHODS
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United States of America Patent
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Issued Date -
Nov 14, 2013
app pub date -
Mar 13, 2013
filing date -
May 11, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed include power controllers and related control methods. A disclosed power controller has a pulse generator, a sample/hold device, a comparator, and a switch controller. The pulse generator provides an enable signal, defining an enable time. The comparator has two inputs capable of being coupled to a reference signal and a feedback signal, respectively, and an output coupled to a compensation capacitor. When enabled by the enable signal, the comparator charges/discharges the compensation capacitor. The switch controller controls a power switch according to a compensation voltage of the compensation capacitor. A feedback voltage of the feedback signal is able to correspond to an output voltage of the power supply.
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