摘要
在分析恒流输出反激变换器基本工作原理的基础上,根据恒压输出反激变换器的稳态关系推导出恒流输出反激变换的稳态关系。定义了连续度的概念,以便于分析变换器不同工作模式。分析了恒流输出反激变换器的输入电压和负载电阻对连续度、占空比和峰值初级电感电流的影响,得出连续度、占空比和峰值初级电感电流随输入电压和负载电阻变化的规律。设计了一台恒流输出反激变换器,仿真和实验结果验证了理论分析的正确性。
The basic principle of flyback converter with constant current output was introduced. The steady-state relationship of flyback converter with constant current output was derived according to flyback converter with constant voltage output. The concept of continuity degree was defined to facilitate the analysis of operation mode. The change process of continuity degree, duty cycle and peak primary inductor current were analyzed in detail with different input voltage and load resistance of flyback converter with constant current output. The change law was obtained. A flyback converter with constant current output was designed and the validity of the theoretical analysis was verified with the experimental and simulative results.
出处
《电源技术》
CAS
CSCD
北大核心
2013年第4期641-642,671,共3页
Chinese Journal of Power Sources
基金
江苏省"青蓝工程"(2010)
关键词
恒流输出
反激变换器
连续度
占空比
峰值电感电流
constant current output
flyback converter
continuity degree
duty cycle
peak inductor current
