Power factor correction circuit with over-voltage detection and driving method thereof
- 申请公布号：
- US8564257(B2)
- 申请号：
- US20100912329
- 申请日期：
- 2010.10.26
- 申请公布日期：
- 2013.10.22
- 申请人：
- PARK YOUNG-BAE;MOON SANG CHEOL;KIM BYOUNG HEON;CHOI BYUNG KWON;CHEN CHENG SUNG;FAIRCHILD KOREA SEMICONDUCTOR LTD.
- 发明人：
- PARK YOUNG-BAE;MOON SANG CHEOL;KIM BYOUNG HEON;CHOI BYUNG KWON;CHEN CHENG SUNG
- 分类号：
- G05F1/40;G05F5/00
- 主分类号：
- G05F1/40
- 摘要：
- The present invention relates to a power factor correction circuit and a driving method thereof. The power factor correction circuit includes a power switch controlling an inductor current flowing in an inductor, an auxiliary inductor coupled to the inductor with a predetermined turn ratio, and a power factor correction controller controlling output power by controlling a switching operation of the power switch. The power factor correction controller determines whether or not an output voltage of the output power is an over-voltage by using the sum of a source current and a sink current that control a zero current detection voltage to be included within a predetermined clamping range, the zero current detection voltage corresponding to an auxiliary voltage that is a both-end voltage of an auxiliary inductor.
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