目前对于分体式(即独立式)电子镇流器,大多采用了异常状态保护和功率因数校正等较复杂的电路。但对于一体化节能灯来说,由于其功率和体积均较小,故与之配套的电子镇流器至今仍采用比较简单的电路。即使在发达因家也是如此。 预热起动式一体化16W节能灯电子镇流器电路如图1所示。其中,输入电路中R_v是氧化锌压敏电阻,起过电压保护作用;L_1、L_2和C_1组成射频滤波器,电解滤波电容C_2、C_3串接可降低其耐压要求, At present, split-type (that is, independent) electronic ballasts, mostly used more abnormal state protection and power factor correction circuit. But for the integrated energy-saving lamps, because of its power and size are small, so the matching electronic ballast still uses a relatively simple circuit. Even in developed countries as well. Preheat start integrated 16W energy saving lamp electronic ballast circuit shown in Figure 1. Among them, the input circuit R_v is a zinc oxide varistor, over-voltage protection; L_1, L_2 and C_1 form a radio frequency filter, electrolytic filter capacitor C_2, C_3 series can reduce the voltage requirements,