Based on T type filter, the new ballast can achieve a wide dimming range with a very narrow frequency variation range, and it can operate with low lamp current crest factor.
基于T型滤波器的调光方法，能在很窄的工作频率范围内实现深度调光，同时具有灯电流波峰因数低的优点。
In this paper has analysed high levels of harmonic currents and low Power factor of electronic ballast by circuit study.
通过电路分析对电子镇流器存在的电源电流谐波高和功率因数低等问题。
Traditional ballast components of inductance ballast has some disadvantages which include large volume, high self consumption, low power factor and difficult to adjust.
传统的高压钠灯配备的是电感式镇流器，其体积大，本身功耗大、功率因数低、调光困难等。
The paper discusses the action of computer aided analysis program in the research on high power factor electronic ballast by using PSPICE.
以PSPICE通用电路分析软件在高功率因数电子镇流器设计中的应用为例，分析了计算机辅助分析软件在工程应用中的作用。
The operation principle, unite power factor and parameters designing of CIC-CPPFC electronic ballast are explained in detail.
详细分析了CIC-CPPFC电子镇流器的工作原理、 单位功率因数的条件和参数设计。
A detail analysis of producing harmonics of electronic ballast is provided. The method to reduce the harmonics distortion and improve the power factor is derived.
分析了电子镇流器产生谐波电流的原因，并以一种新型电子镇流器为例，指出了降低谐波含量、提高功率因数的方法及其实际意义。
Have designed the frequency modulation circuit in the CIC-CPPFC electronic ballast circuit, which would decrease the crest factor of circuit.
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.
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。
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