• 제목/요약/키워드: 황명근

검색결과 101건 처리시간 0.021초

무전극 램프의 기술동향과 전망 (Technology Trend and Prospect of Electrodeless Lamp)

  • 황명근;이종찬;박대희
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2001년도 학술대회논문집
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    • pp.23-26
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    • 2001
  • 1879년 T. Edison이 백열전구(incandescent lamp)의 발명, 1920년대에는 형광램프(fluorescent lamp)의 개발에 이어 1990년대에는 무전극(electrodeless) 형광램프가 처음으로 실용화 되어진 비교적 새로운 광원(light source)으로 종래의 광원이 지니지 못하는 특징들이 있다. 본 보고는 그의 원리와 특징, 실용화, 제 문제점 등을 소개하고, 금후의 전망에 대하여 언급한다.

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무전극 형광등 시스템의 성능평가 및 분석 (Performance evaluation and analysis of Electrodeless Fluorescent Lamp System)

  • 김현숙;이세현;신상욱;황명근
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2002년도 학술대회논문집
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    • pp.3-8
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    • 2002
  • In this paper, We measured an electric and optical characteristics for electrodeless fluorescent lamp system. We used the CCD(charged couple device) and Integrating Sphere Photometer to detect the accurate variation of data and got a characteristic of output voltage and current, luminance, luminous flux etc. And then we come to understand that the efficiency of electrodeless fluorescent lamps are similar to CFLs(compact fluorescent lamp) or HID(high intensity discharge lamp).

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ZnO 바리스타의 전압-전류 특성 연구 (A Study of Electrical Characteristics for ZnO Varistor in HST)

  • 황명근;이상엽;허창수
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1998년도 하계학술대회 논문집 D
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    • pp.1471-1474
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    • 1998
  • ZnO Varistor with composition of ZnO, $Bi_2O_3$, $Sb_2O_3$, CoO, NiO, $MnO_2$, $Cr_2O_3$, $Al_2O_3$ was fabricated by sintering methods. The purpose of this paper is to present certified voltage-current test data and a summary of electrical characteristics of the ZnO varistors.

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전철용 ZnO 바리스타(IEC 10kA)의 전기적 특성 연구 (A Study of Electrical Characteristics for ZnO Varistor in HST)

  • 황명근;연복희;허창수
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1998년도 하계학술대회 논문집 D
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    • pp.1519-1521
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    • 1998
  • A Gapless HST(high speed train) arrester design is not possible without the highly non-linear ZnO(ZincOxide) varistors. Zno varistors combine excellent protective characteristics with steady state performance to maximize protection, the ZnO varistors are selected for each unit based on leakage current and residual voltage, to verify that the residual voltage is the residual voltage published for HST arrester.

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배전용 고분자 피뢰기의 하우징과 전극구조 (Study on the Housing and Electrode of Polymer Arrester)

  • 김인성;조한구;황명근;김광호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1996년도 하계학술대회 논문집 C
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    • pp.1676-1678
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    • 1996
  • This paper introduced and study : new material electrode structures(cap type sealing structure, knuckle type electrode, stress relief housing electrode), and insulating housing which supporting shed and containg MOV(ZnO) and sub parts, of polymer arrester.

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형광램프의 점등방식에 대한 특성비교에 관한 연구 (A study on the characteristics by Ignition type of Fluorescent Lamps)

  • 황명근;임종민;신상욱
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2000년도 하계학술대회 논문집 C
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    • pp.2156-2158
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    • 2000
  • Proposals on optimized ignition type of fluorescent fixtures by comparing electrical and optical characteristics for magnetic ballast and electronic starter type, magnetic ballast and glow starter and electronic ballast.

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콤팩트 형광램프의 전극구조에 대한 고찰 (A Study on Electrode Construction of Compact Fluorescent Lamp)

  • 신상욱;이세현;조미령;황명근
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2004년도 춘계학술대회 논문집
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    • pp.149-154
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    • 2004
  • In this paper, we observed an electrode structure that is an important element that decide life of compact fluorescent lamp. We measured winding and application type of electron emission material and electrode damage with SEM(Scanning Electron Microscope). From now on, we need to measure rather several difference aging-time sample than analyze a relation electrode between life

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