摘要
应用能量守恒法建立了非理想Boost变换器的小信号模型,在该电路拓扑结构的基础上引入了峰值电流模式控制,并进一步推导出含有斜坡补偿的情况下电路等效功率级的精确模型,该模型具有更高的精度;然后以峰值电流模式Boost变换器为基础,针对该电路存在的缺点设计了电压控制器补偿网络,使得补偿后的系统具有更好的稳定性,并通过MATLAB软件仿真验证了该方案的优点和利用价值。
A non-ideal small signal model of Boost converter is established in the application of the energy conservation.Based on the circuit topology,a peak current mode control is introduced,and a more accurate equivalent power level circuit model is derived on the slope compensation.On the basic of the peak current mode Boost converter and considesed the defects of the circuit,and voltage control compensation network has designed to make the compensation system better stability.The results of the MATLAB software simulation show that the program binifits in use.
出处
《电子器件》
CAS
北大核心
2012年第2期184-189,共6页
Chinese Journal of Electron Devices
基金
安徽省高等学校省级自然科学研究重点项目(KJ2011A213)
合肥工业大学博士专项资助基金(2011HGBZ0953)
合肥工业大学校基金(2011HGXJ1063)
