Flyback converter and control circuit with standby mode
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United States of America Patent
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Dec 26, 2017
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app pub date -
May 12, 2016
filing date -
May 25, 2015
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Abstract
The present invention provides a power converter, and a control circuit and a standby power saving method thereof. The power converter provides an output voltage from an output terminal through an enable switch circuit to a power receiver. A detection signal shows whether a voltage at a signal transmission pin of the power converter is in a predetermined range, if not, the enable switch circuit is turned OFF. The power converter adjusts a feedback signal according to the detection signal or according to the detection signal and the output voltage, so as to adjust the output voltage to be lower than a normal operation level in a normal operation mode, to save power in a standby mode.
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