A theoretical solution for PWM with non-ideal transient response

B. Zhou; W. H. Lau; Henry Chung

doi:10.1109/ISCAS.2005.1465126

A theoretical solution for PWM with non-ideal transient response

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 22_Publication in policy or professional journal

Overview

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Author(s)

Related Research Unit(s)

Department of Electrical Engineering

Detail(s)

Original language	English
Article number	1465126
Pages (from-to)	2469-2472
Journal / Publication	Proceedings - IEEE International Symposium on Circuits and Systems
Publication status	Published - 2005

Conference

Title	IEEE International Symposium on Circuits and Systems 2005, ISCAS 2005
Place	Japan
City	Kobe
Period	23 - 26 May 2005

Link(s)

DOI	DOI https://doi.org/10.1109/ISCAS.2005.1465126 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-67649109324&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(18f6492a-cf68-4526-81bc-013733b3278d).html

Abstract

The ideal theoretical spectral analysis for PWM has been available for decades. However, PWM actually suffers from non-ideal switching characteristics and their effects to the output spectrum have not been thoroughly studied theoretically due to the complexity involved. Transient ringing on both rising and falling edges is a common phenomenon during switching and it has been hold responsibility for harmonic distortion, judging from experimental results. In this paper, we will present a theoretical technique to model the PWM with transient ringing using a second-order circuit. This theoretical solution is the first of its kinds available in literature and it helps us to understand the distortion effects to the spectrum due to transient ringing. Simulations have been carried out to verify the correctness of the theoretical solution. © 2005 IEEE.