简易的高功率因数电子镇流器

A Simple Electronic Ballast with High Power Factor

针对目前市场上电子镇流器产品成本偏高、性能不稳定而不利推广的缺点,提出一种研制性价比优良的新型电子镇流器的方法,并阐述其工作原理。指出该类型电子整流器是由一种单级电源电路分别和两种以集成电路555为核心的控制电路结合而成,因而具有电路简单、成本低、功率因数高的特点。

To reduce high cost and avoid unstability and unpopularity two high power factor electronic ballasts are presented in this paper, they are obtained from the integration of a single stage supply circuit with two control circuits individually. The supply circuit has two switch transistors, and the control circuits take integrated circuit 555 as the dominant factor. The ballast has advantages of simplicity, low cost, high power factor and stable output power.