设计了用于电流输入连续型电荷泵功率因数校正电子镇流器的调频电路，以减小电路的峰值系数。
Have designed the frequency modulation circuit in the CIC-CPPFC electronic ballast circuit, which would decrease the crest factor of circuit.
分析了电荷泵电路实现功率因数校正（PFC）的基本原理和条件；
The principle of charge pump for achieving power factor correction (PFC) and its unity power factor condition are analyzed.
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