A simple multiple pulsewidth modulated AC chopper

Bhat, SAK and Vithayathil, J (1982) A simple multiple pulsewidth modulated AC chopper. IEEE Transactions on Industrial Electronics, 29 (3). pp. 185-190. ISSN 0278-0046

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Abstract

A simple multiple pulsewidth modulated (MPWM) AC chopper using power transistors for 3-amp;phi; power control is discussed. 120amp;deg; chopping period is used for main transistors so that the circuit can accommodate resistive and lagging or leading power factor loads. Only 1-amp;phi; sensing is used for 3-amp;phi; control. An alternate economical power and control scheme for 3-amp;phi; MPWM AC choppers suitable only for resistive loads is also suggested. The experimental results for 12 choppings per cycle are given

Item Type: Journal Article
Uncontrolled Keywords: Power control;Power factor;Power transistors;Three-phase power control;Multiple pulsewidth modulated AC chopper;Power transistors;Chopping period;Power factor loads
Subjects: ENGINEERING > Electronics and Electrical Engineering
Division/Department: Aerospace Electronics and Controls Division, Other
Depositing User: MS Jayashree S
Date Deposited: 10 May 2007
Last Modified: 24 May 2010 09:55
URI: http://nal-ir.nal.res.in/id/eprint/4184

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