摘要
传统的两级APFC采用两套控制电路和至少两个功率开关管,增加了电路复杂程度及成本。随着PFC/PWM两级复合控制芯片的产生,两级APFC的这一缺陷可以得到大大改善。基于对PFC/PWM两级控制复合芯片ML4824功能的简介,对两级APFC技术进行了研究,并通过带PFC的蓄电池充电器的研制。
In the conventional active double-stage PFC approach, two sets of control circuits and at least two power transistors which have greatly influence on the complexity and cost arc needed. With the development of a new I'KC and PWM controller combo, the performance of active double-stage PFC approach can be greatly improved. Through the analysis based on ML4824, a charger of storage battery with power factor correction (PFC) is developed. Kxpenment results reveal that this PKC/PWM combo controller is feasible.
出处
《电源技术应用》
2002年第11期13-17,共5页
Power Supply Technologles and Applications
