POWER CONVERSION APPARATUS AND BROWN-OUT PROTECTION METHOD THEREOF
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United States of America Patent
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Issued Date -
May 3, 2012
app pub date -
Jan 14, 2011
filing date -
Oct 27, 2010
priority date (Note) -
Abandoned
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Abstract
A power conversion apparatus and a brown-out protection method are provided. The brown-out protection method includes sampling a rectification signal relating to an AC voltage received by the power conversion apparatus by adopting a discrete sampling means; and when a peak value of the sampled rectification signal has reached to a predetei mined value within a predetermined duration, making a pulse width modulation (PWM) control chip in the power conversion apparatus provide a PWM signal to switch a power switch in the power conversion apparatus, and thereby making the power conversion apparatus provide an output voltage to an electronic device; otherwise, making the PWM control chip to stop providing the PWM signal.
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