摘要
DC/DC变换器小信号建模是研究和分析其稳定性和瞬态响应的主要手段之一。针对单端正激变换器在一个周期内开关管导通和关断两种工作状态,建立了连续工作模式下的平均状态方程;建立小信号模型设计并仿真控制环路的幅频特性和相频特性;优化设计DC/DC变换器控制环路的补偿网络以提高系统的稳定性和瞬态响应,最后通过仿真和实验进行了验证。
This paper presents small signal model and compensation network of DC/DC converter,the state equation of single-ended forward converter is established to analyze its small signal model and to design and simulate amplitude-frequency characteristic and phase-frequency characteristic in continuous conduction mode.The stability and dynamic response of switch-mode power supplies are elevated by optimizing its compensation network.Tile results of the analysis are simulated and verified through experiment.
出处
《电力电子技术》
CSCD
北大核心
2009年第3期26-28,共3页
Power Electronics
关键词
变换器
稳定性
瞬态响应/小信号建模
补偿网络
converter
stability
transient response / small-signal modeling
compensation network
