工作于断续电感电流模式的PWM开关变换器的统一建模方法  

An Unified Approach to Modeling PWM Switching Power Converters in Discontinuous Inductor Current Mode Operation

作　　者：林波涛[1,2] 丘水生[1,2] 

机构地区：[1]华南理工大学电子与通信工程系 [2]香港理工大学电子工程学系

出　　处：《电子学报》1999年第2期40-43,共4页Acta Electronica Sinica

基　　金：广东省自然科学基金

摘　　要：基于通用的“高频网络平均法”，本文提出了一种新的ＰＷＭ开关变换器（断续电感电流模式）的统一建模方法．由此方法，我们得到变换器的低频等效电路模型．所得模型既利于建立电路的微分方程，又适合于ＳＰＩＣＥ的仿真，可获得变换器的直流特性及小信号特性．仿真及实验结果证明了该模型的正确性．Based on the method of “High Frequency Network Averaging”,an unified approach to modeling DC DC PWM converters in discontinuous inductor current mode operation is proposed.Low frequency behavior models are derived.These models,on the one hand,serve as a basis to derive differential equations of the converters,on the other hand,are very suitable for SPICE simulation,where DC and small signal characteristics can be easily obtained.Simulation and experimental results verifying the modeling are reported.

关 键 词：开关功率变换器 建模 CICM PWM 变换器 

分 类 号：TN624.02[电子电信—电路与系统]