Phase shift circuit and power factor correction circuit including the same
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United States of America Patent
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Feb 23, 2016
Grant Date -
Jun 26, 2014
app pub date -
May 10, 2013
filing date -
Dec 21, 2012
priority date (Note) -
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Abstract
There are provided a phase shift circuit and a power factor correction circuit including the same. The phase shift circuit includes a switching circuit unit charging power in or discharging power from a capacitor through a plurality of switching devices and comparing a voltage of the capacitor with a predetermined reference voltage, and a clock generating unit generating a reference clock signal based on an output of the switching circuit unit, wherein the switching circuit unit turns the plurality of switching devices on or off, based on currents from inductors respectively included in a main circuit and a sub-circuit of a power factor correction circuit to determine a polarity of the voltage of the capacitor.
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