Precision calorimetry for the accurate measurement of losses in power electronic devices

  • Weier S
  • Shafi M
  • McMahon R
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Abstract

The direct measurement of losses in power electronic systems is possible through the use of a calorimeter. An improved and fully automated version of a double-jacketed closed-type calorimeter is described in this paper. The accuracy of the calorimeter has been confirmed by calibration tests and is better than 0.1 W in 25 W. The losses in mobile (cell phone) chargers and the ballasts of compact fluorescent lamps have been measured in this calorimeter and are compared to those obtained from conventional measurement methods.

Author-supplied keywords

  • Calorimeter
  • Compact fluorescent lamp (CFL)
  • Component
  • Loss measurement
  • Mobile charger

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Authors

  • Sven Weier

  • Mohsin A. Shafi

  • Richard McMahon

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