摘要
以单管Boost型PFC电路作为研究对象,分别针对电流断续、电流临界连续和电流连续3种工作模态,详细讨论了数字控制PFC的实现方法和设计过程,并分别给出了样机实验结果;此外,结合M C 56F 8013的外设资源特点,给出了基于DSP的PFC详细的系统接口设计,包括PWM控制策略和同步控制AD采样环节。对PFC的数字控制方案进行了系统研究,提供了不同工作模式下的完整数字控制解决方案,为功率因数的数字控制技术应用提供了较好的参考作用。
Digital signal processor （DSP） controlled power supply has many advantages over analog controlled one. DSP based digital control can combine the application of power electronic. The power factor correcting （PFC） is one of the most important applications in power electronic technology. There are various operation modes according to different applications. Based on the Boost PFC circuit, This paper describes the system principle and the detailed design for the digital control under three typical modes. Furthermore, the related primary interface design, such as the PWM control strategy and the synchronous AD control method are also introduced. Finally one prototype is built to verify each digital control scheme. The whole digital solution for PFC application provides a favorable reference for PFC application.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
2007年第2期164-170,共7页
Journal of Nanjing University of Aeronautics & Astronautics
基金
美国Freescale公司技术合作资助项目
关键词
数字信号处理
功率因数校正
数字控制
PI控制
digital signal processor （DSP）
power factor correcting （PFC）
digital control
PI control
