摘要
针对Buck变换器这样一个非线性、时变、周期性系统,采用平均开关模型方法建立了CCMBuck变换器的小信号模型,得到了相应的交流小信号传递函数。利用SG3525实现有源超前滞后补偿网络对闭环系统进行了校正,实验结果验证了模型和控制方法的合理性。
For the non-linear、time-varying and periodic Buck DC-DC converter, the small-singal models are set up with average switching-mode, the AC small-signal transfer funcations are deduced. The active lead-lag compensation net is made up of SG 3525 to correct the closed system.The experimental results show the models and control method are rationality.
出处
《电气技术》
2007年第12期32-35,共4页
Electrical Engineering
基金
陕西省教育厅资助项目(07JK203)
