西南交通大学学报Issue(2)：218-225,8.DOI:10.3969/j.issn.0258-2724.2015.02.003
谷值V2控制Boost变换器的频域与时域特性分析
Frequency-Domain and Time-Domain Characteristics of Valley V2 Controlled Boost Converter
摘要
Abstract
Based on the analysis of the output voltage ripple characteristics of boost converter,the V2 control technique was applied to Boost converter. The principle of operation of valley V2 controlled Boost converter was analyzed in detail and a small-signal model was established. Based on this model, the control-to-output,input-to-output,and output impedance transfer functions were deduced. The characteristics of valley V2 controlled Boost converter in time-domain and frequency-domain was analyzed,and it was also compared with valley current mode (VCM)controlled Boost converter. The results show that valley V2 controlled Boost converter has faster input and load transient response speed than VCM controlled Boost converter. The time domain simulation results show that,compared with the valley current control,when the input voltage increases and decreases,transient response time of valley V2 control is reduced by about 530μs and 800μs respectively,and when the load increases and decreases,it is reduced about 650 μs and 1 330 μs respectively. Experimental results are in agreement with simulation ones,demonstrating that the theoretical analysis is correct.关键词
谷值控制/Boost变换器/频域特性/瞬态响应Key words
valley control/Boost converter/frequency-domain characteristics/transient response分类
信息技术与安全科学引用本文复制引用
何圣仲,周国华,许建平,吴松荣,徐英雷,陈利..谷值V2控制Boost变换器的频域与时域特性分析[J].西南交通大学学报,2015,(2):218-225,8.基金项目
国家自然科学基金资助项目（51177140，61371033）；高等学校博士学科点专项科研基金资助项目（20130184120011）；四川省青年科技基金资助项目 （）
