Apparatus and method for standby power reduction of a flyback power converter
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United States of America Patent
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Sep 2, 2014
Grant Date -
Mar 3, 2011
app pub date -
Aug 9, 2010
filing date -
Aug 14, 2009
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Abstract
An apparatus and method for a flyback power converter reduce the standby output voltage of the flyback power converter by switching the reference voltage provided by a shunt regulator of the flyback power converter or the ratio of voltage divider resistors of the shunt regulator, to reduce the standby power consumption by an output feedback circuit of the flyback power converter, the shunt regulator, and the voltage divider resistors, and thereby improve the power loss of the flyback power converter in standby mode.
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