公开(公告)号：US20110095731A1

公开(公告)日：2011-04-28

申请号：US12730155

申请日：2010-03-23

申请人： Qing-Lin Zhao ,  Ming-Zhu Li ,  Zhi-Hong Ye ,  Xue-Feng Tang ,  Xin Guo ,  Yu-Li Feng

发明人： Qing-Lin Zhao ,  Ming-Zhu Li ,  Zhi-Hong Ye ,  Xue-Feng Tang ,  Xin Guo ,  Yu-Li Feng

IPC分类号： G05F1/70

CPC分类号： H02M1/4225 ,  Y02B70/126 ,  Y02P80/112

摘要： A power factor correction controller is utilized for a power factor correction circuit in a critical conduction mode of an electric power converter. The power factor correction controller generates a control voltage according to an output voltage outputted from the electric power converter, and utilizes a first threshold value to detect the control voltage. The power factor correction controller can control the power factor correction circuit to operate in different modes according to various levels of a load. Therefore, an objective according to the present invention for reducing electric power consumption of the electric power converter in a light load or a no-load mode and improving energy transmission efficiency can be attained.

摘要翻译： 功率因数校正控制器用于电力转换器的临界导通模式中的功率因数校正电路。 功率因数校正控制器根据从电力转换器输出的输出电压产生控制电压，利用第一阈值检测控制电压。 功率因数校正控制器可以根据负载的各种级别控制功率因数校正电路在不同模式下工作。 因此，可以实现根据本发明的用于在轻负载或空载模式中降低功率转换器的功率消耗并提高能量传输效率的目的。