• DocumentCode
    827494
  • Title

    A Simple Multiple Pulsewidth Modulated AC Chopper

  • Author

    Bhat, S.Ashoka Krishna ; Vithayathil, Joseph

  • Author_Institution
    Graduate student, Department of Electrical Engineering, University of Toronto, Toronto Canada M5S 1A4.
  • Issue
    3
  • fYear
    1982
  • Firstpage
    185
  • Lastpage
    189
  • Abstract
    A simple multiple pulsewidth modulated (MPWM) ac chopper using power transistors for 3-¿ power control is discussed. 120° chopping period is used for main transistors so that the circuit can accommodate resistive and lagging or leading power factor loads. Only 1-¿ sensing is used for 3-¿ control. An alternate economical power and control schemes for 3-¿ MPWM ac choppers suitable only for resistive loads is also suggested. The experimental results for 12 choppings per cycle are given.
  • Keywords
    Choppers; Counting circuits; Open loop systems; Phase locked loops; Power transistors; Pulse modulation; Reactive power; Space vector pulse width modulation; Voltage control; Voltage-controlled oscillators;
  • fLanguage
    English
  • Journal_Title
    Industrial Electronics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0278-0046
  • Type

    jour

  • DOI
    10.1109/TIE.1982.356661
  • Filename
    4180391
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=827494