摘要
根据状态空间平均法建立了有源钳位正激变换器连续导电模式下的小信号模型,以此分别得出等效功率级传递函数和电压环路传递函数,并且使用MATLAB软件绘制了系统传递函数的幅频特性曲线并分析了钳位电路对系统传递函数幅频特性曲线的影响,最后对环路进行了补偿设计。
A small signal model of active clamp forward fedback-flyback convert with CCM mode.is built by state-space averaging approach. The transfer functions of equivalent power and open-loop voltage are presented, respectively. The amplitude-frequency curve is ploted by the Matlab simulation, and the analysis of the influence of the active-clamp circuit is also presented. Last, the feedback loop compensation design is given
出处
《电源世界》
2009年第7期21-25,共5页
The World of Power Supply
关键词
有源钳位正激变换器
双环
峰值电流
小信号
Active-clamp forward converter, Double circle, Peak current, Small signal
