...功率因数校正； LED 驱动电源； 反激变换器； 临界连续模式 中图分类号： TM 910.2 文献标识码： B 文章编号： 1006 - 6047 （2011）06 - [gap=10104]Key words： electric power factor correction； LED driver power supply； flyback converter； boundary conduction mode ..
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Correction coefficient is important to electric charge refund, but its power factor Angle is unknown.
更正系数是补退电费的重要依据，但更正系数中的功率因数角也是未知数。
This paper makes an approach to the utilization of powers, selection of power circuits and correction of power factor for new electric passenger locomotive.
本文对新型客运电力机车功率利用、主电路选择和功率因数补偿等进行了初步探讨。
The simulation result proves: Used this converter's topology structure, the envelope curve of import electric current follows entering voltage change. And power factor correction has been realized.
仿真分析结果证明：该变换器拓扑结构能够使输入电流的包络随着收入电压变化，有效的实现了功率因数校正。
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