Direct Current-Modulation of a Xenon Lamp

DOI Web Site 12 References
  • IWATA Tetsuo
    Department of Mechanical Engineering, Faculty of Engineering, University of Tokushima
  • IMAMOTO Yohei
    Department of Mechanical Engineering, Faculty of Engineering, University of Tokushima
  • ARAKI Tsutomu
    Division of Bioengineering, Graduate School of Engineering Science, Osaka University
  • UCHIDA Teruo
    Department of Mathematics and Physics, Faculty of Engineering, Setsunan University

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Other Title
  • キセノンランプの直接電流変調
  • ソウチ ト ギジュツ キセノンランプ ノ チョクセツ デンリュウ ヘンチョウ

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Description

We have developed a technique for modulating a xenon (Xe) lamp that is usually driven by a direct-current (dc) mode. The lamp current is sinusoidally modulated using a metal-oxide-semiconductor field-effective-transistor (MOSFET), which is connected in series to the Xe lamp.To operate in a high frequency region, an LC filter is attached on the anode side of the Xe lamp.The degree of modulation was 90% at a frequency 1 kHz and was 25% at a frequency 100 kHz, respectively. In combination with a lock-in amplifier, fluorescence measurement under the dc background light was carried out to demonstrate the performance of the modulated Xe lamp.

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