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研究一种新的单级高功率因数电子镇流器 ,详细分析该电子镇流器的运行原理 ,设计了实验电路。实验结果表明 ,采用该种结构的电子镇流器可以得到接近于 1的功率因数 ,输入电流总谐波畸变率 <8% ,灯电流波峰系数 <1 3。
A new single-stage high power factor electronic ballast is studied. The operating principle of the electronic ballast is analyzed in detail and the experimental circuit is designed. The experimental results show that the electronic ballast with this kind of structure can get the power factor close to 1, the total harmonic distortion of input current is less than 8% and the crest factor of lamp current is less than 1 3.