A comparative study on dimming control methods for electronic ballasts

  • Ho Y
  • Lee S
  • Chung H
 et al. 
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Abstract

A comparative study on the performance characteristics between the variable switching frequency scheme (VFS) and variable voltage scheme (VVS) was carried out. By using the fundamental-frequency model and the nonlinear lamp resistance characteristics, the steady state solution and starting voltage characteristics were derived. It was shown that the VVS has several operational advantages over the VFS in dimming operation.

Author-supplied keywords

  • Dimmable electronic ballasts
  • Fluorescent lamps
  • Illumination
  • Illumination control

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Authors

  • Y. K.Eric Ho

  • Stephen T.S. Lee

  • Henry Shu Hung Chung

  • S. Y. Hui

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