Large Signal Model and Transient Characteristics of PSM Switching Converter LUO Ping,XIONG Fu-gui,LI Zhao-ji,CHEN Guang-jü

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Large Signal Model and Transient Characteristics of PSM Switching Converter LUO Ping,XIONG Fu-gui,LI Zhao-ji,CHEN Guang-jü

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- Large Signal Model and Transient Characteristics of PSM Switching Converter LUO Ping,XIONG Fu-gui,LI Zhao-ji,CHEN Guang-jü
- Acta Electronica Sinica Vol. 32, Issue 11, Pages: 1829-1832(2004)
- 作者机构：
  
  电子科技大学微固学院,四川,成都,610054
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN624
- Published：2004
- 稿件说明：
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Large Signal Model and Transient Characteristics of PSM Switching Converter LUO Ping,XIONG Fu-gui,LI Zhao-ji,CHEN Guang-jü[J]. Acta Electronica Sinica, 2004, 32(11): 1829-1832.
DOI：

Large Signal Model and Transient Characteristics of PSM Switching Converter LUO Ping,XIONG Fu-gui,LI Zhao-ji,CHEN Guang-jü[J]. Acta Electronica Sinica, 2004, 32(11): 1829-1832. DOI：

摘要

针对传统PWM调制具有轻载下效率低的缺点

论文作者提出一种新的高效调制模式——脉冲跨周调制PSM模式.本文对这种新的PSM开关变换器调制模式进行了包括大信号解析模型、离散模型和相平面模型的大信号建模工作

并借助变换器的解析解、离散模型和相平面分析法对PSM变换器开环/闭环系统的瞬态响应特性进行了分析.研究表明PSM变换器不仅较PWM调制模式轻载下效率高

而且具有响应速度更快

抗干扰性更好的特点.

Abstract

Aiming at normal PWM low efficiency at light loads

the author proposed a novel high efficiency modulation mode named pulse skip modulation mode PSM.This paper establishes the large signal model of the novel PSM switching converter mode

which includes large analytical model

discrete model and phase plane model.Basing on its analytical model

discrete model and phase portrait

the transient characteristics of the open and closed PSM converter are given in this paper.Compared with PWM converter

PSM converter has quicker response and better interference rejection besides high efficiency.

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