摘要
采用恒导通时间(constant on time,COT)控制技术,研制了一台160 W的功率因数校正(power factor correction,PFC)装置,简化了电路的结构,实现了开关管的软开关,提高了电路的效率;在此基础上,引入电荷泵电路,实现了电路的自驱供电,省去了辅助电源的设计,讨论了变换器的工作原理,并给出了相应的实验结果。
A 160 W power factor correction (PFC) converter based on constant on time(COT)control technique was proposed, the structure of the circuit could be simplified, soft-switched of the power switch was realized and high efficiency of the circuit could be achieved. Then, self-supply network by employing charge pump eliminated the design of auxiliary power supply. Finally, the principle of operations was discussed briefly and the relevant experimental results were also presented.
出处
《电源技术》
CAS
CSCD
北大核心
2015年第12期2727-2728,2780,共3页
Chinese Journal of Power Sources
基金
广西自然科学基金资助项目(GXNSFAA118380)
南宁市科技攻关项目(南科攻201102096G)
关键词
功率因数校正
恒导通时间控制
电荷泵
power factor correction
constant on time control
charge pump