蛍光ランプの高周波点灯における最適化について

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書誌事項

タイトル別名
  • On the Optimization of HF Operation of a Fluorescent Lamp
  • ケイコウ ランプ ノ コウシュウハ テントウ ニ オケル サイテキカ ニ ツイ

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説明

It was confirmed that the luminous flux of fluorescent lamps operated with high frequency (HF) current are determined by the wave forms of the lamp current. In this paper, current wave form of the dark angle part in case of 40 W linear shaped fluorescent lamp was investigated concerned with the luminous flux.<BR>In a HF operation, usually, the inverters are driven with the unsmoothed ripples from full wave rectifiers. In such cases, the envelope curve of the HF lamp current exhibits finite zero current phase region. The luminous efficacy would be reduced in considerable order because of the existence of dark angle part in HF lamp current.<BR>It was tried to make up continuous lamp current by additions of auxiliary sources in the lower region of rectifier voltage.<BR>It was proved experimentally that the luminous flux increased in every case of auxiliary power source.<BR>Further, the optimal form of the lamp current from the view point of the total efficiencies is investigated.<BR>The luminous flux can be calculated as a function of the wave form of the lamp current that might be regarded as an amplitude modulated HF.

収録刊行物

  • 照明学会誌

    照明学会誌 68 (10), 513-517, 1984

    一般社団法人 照明学会

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