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 2, 2016
Grant Date -
Jun 26, 2014
app pub date -
Apr 11, 2013
filing date -
Dec 21, 2012
priority date (Note) -
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Abstract
A phase shift circuit may include a ramp generation unit charging or discharging a capacitor connected to a switch device to generate a ramp signal, a reference signal generation unit generating a predetermined reference signal from the ramp signal, and a comparison unit comparing the ramp signal with the reference signal to generate a clock signal, wherein at least one of the reference signal generation unit and the comparison unit changes a negative or positive value of offset components included in the reference signal or the ramp signal within every operating period of the switch device.
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