DocumentCode
3142494
Title
Demodulation problems in a PWM power system
Author
Wachi, Shigeaki
Author_Institution
Circuit A&S, Tokyo, Japan
fYear
2009
fDate
15-18 Nov. 2009
Firstpage
1
Lastpage
4
Abstract
Pulse Width Modulation (PWM) technology has been used for minimizing the power-consumption in power systems. But the PWM system has three major problems: time delay; nonlinearity; and frequency response variation. All these phenomena that are not observed in a conventional analog system cause instability, narrowing bandwidth of the feedback system. In this paper, the nonlinearity and the frequency response variation are discussed. The technologies presented here are helpful for improving the performance of the PWM feedback system.
Keywords
demodulators; power consumption; pulse width modulation; PWM feedback system; PWM power system; demodulation problems; frequency response variation; nonlinearity; power-consumption; time delay; Delay effects; Demodulation; Filters; Frequency; Inductors; Power systems; Pulse amplifiers; Pulse width modulation; Space vector pulse width modulation; Switches; LC filter; PWM; demodulator; nonlinearity;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on
Conference_Location
Tokyo
Print_ISBN
978-1-4244-5177-7
Electronic_ISBN
978-4-88686-067-5
Type
conf
DOI
10.1109/ICEMS.2009.5382957
Filename
5382957
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