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1. 发明申请

US20100109615A1 Power Factor Correction Circuit And Method Of Driving The Same 有权
标题翻译：功率因数校正电路及其驱动方法
公开(公告)号：US20100109615A1
公开(公告)日：2010-05-06
申请号：US12608727
申请日：2009-10-29
申请人： Jong-Tae HWANG , Jin-Sung KIM , Moon-Sang JUNG , Dae-Ho KIM , Sung-Yun PARK
发明人： Jong-Tae HWANG , Jin-Sung KIM , Moon-Sang JUNG , Dae-Ho KIM , Sung-Yun PARK
IPC分类号： G05F1/70
CPC分类号： G05F1/70 , H02M1/4225 , H02M2001/0025 , Y02B70/126
摘要： The present invention relates to a power factor correction circuit and a method of driving the power factor correction circuit. The power factor correction circuit according to the present invention includes a power transfer element configured to receive an input voltage, an input current corresponding to the input voltage flowing through the power transfer element, and a switch connected to the power transfer element and configured to control an output voltage generated by the current flowing through the power transfer element. The power factor correction circuit is configured to detect a zero voltage edge timing of the input voltage by detecting the input voltage, generate a reference clock signal having a frequency that varies according to the detected edge timing, generate a reference signal using the reference clock signal, generate an error amplification signal based on a difference between the output voltage and a predetermined error reference signal, generate the amplification reference signal by multiplying the reference signal by the error amplification signal, and control a switching operation of the switch using the amplification reference signal and a detection signal corresponding to a current flowing through the switch.
摘要翻译：本发明涉及一种功率因数校正电路和驱动功率因数校正电路的方法。根据本发明的功率因数校正电路包括功率传输元件，其被配置为接收输入电压，对应于流过功率传递元件的输入电压的输入电流，以及连接到功率传输元件的开关，并且被配置为控制由流过功率传递元件的电流产生的输出电压。功率因数校正电路被配置为通过检测输入电压来检测输入电压的零电压边沿定时，产生具有根据检测到的边沿定时而变化的频率的参考时钟信号，使用参考时钟信号产生参考信号基于输出电压和预定误差参考信号之间的差产生误差放大信号，通过将参考信号乘以误差放大信号产生放大参考信号，并使用放大参考信号来控制开关的开关操作以及与流过开关的电流对应的检测信号。

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