• 제목/요약/키워드: 무전극 램프

검색결과 130건 처리시간 0.025초

무전극 램프 안테나의 권선수에 따른 휘도와 파라미터 특성 (Parameter and Brightness Characteristic of Antena according to Coil turns on Electrodeless Fluorescent Lamp)

  • 양종경;최기승;백광현;최용성;이종찬;박대희
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2004년도 추계학술대회 논문집 전기물성,응용부문
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    • pp.281-284
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    • 2004
  • In Recent, it became necessary to envelope the technology about electrodeless fluorescent lamp according to demand of the electrodeless fluorescent lamp system that used higher efficiency and advantage of long-lifetime. Especially, in the electrodeless fluorescent lamp which used H-mode, efficiency of lamp is decided from matching parameter of antena and inverter So it is of the utmost importance to design antena and inverter. Therefore, this paper used a transformer principle for efficiency rising of electrodeless fluorescent lamp and interpreted an equivalent circuit, used an impedance analyzer in order to confirm a performance enhancement of lamp along design of antenna, and confirmed parameter characteristic of R, L, C, Z, Phase, Q-factor along a change of magnetic flux density. Also, this paper confirmed a luminance characteristic of electrodeless lamp along parameter change with measuring optical characteristic along a change of magnetic flux density.

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무전극 램프의 안테나 파라미터 변화에 따른 휘도특성 (Brightness Characteristic as a Change of Antena Parameter on Electrodeless Fluorescent Lamp)

  • 양종경;최기승;백광현;최용성;이종찬;박대희
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2004년도 추계학술대회 논문집 전기물성,응용부문
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    • pp.164-166
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    • 2004
  • In Recent, it became necessary to develope the technology about electrodeless fluorescent lamp according to demand of the electodeless fluorescent lamp system that used higher efficiency and advantage of long-lifetime. Especially, in the electordeless fluorescent lamp which used H-mode, efficiency of lamp is decided from matching parameter of antena and inverter, so it is of the utmost importance to design antena and inverter. Therefore, this paper used a transformer principle for an efficiency rising of electrodeless fluorescent lamp and interpreted an equivalent circuit, and confirmed a luminance characteristic by ferrite change of antenna and change of coil turns. Also, this paper used the thermoelectric element which can let you cool ferrite and antenna and confirmed the luminance characteristic along a change of ferrite and an antenna temperature.

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2.5MHz급 무전극 램프 구동용 ZVS 인버터에 관한 연구 (2.5MHz Zero-Voltage-Switching Resonant Inverter for Electrodeless Fluorescent Lamp)

  • 박동현;김희준;조기연;계문호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1996년도 추계학술대회 논문집 학회본부
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    • pp.339-342
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    • 1996
  • Driving the electrodeless fluorescent lamp, the high ac voltage with high frequency is required. The linear power amplifier has been widely used as a driving circuit of electrodeless fluorescent lamp. However, the low efficiency of the power amplifier causes the driving circuit to be replaced by a PWM switching inverter. In order to use a PWM switching inverter as the driving circuit of an electrodeless fluorescent lamp, the high switching frequency is required. But due to the switching loss at switches of the inverter, the limitation of high switching frequency appears in the inverter. One solution to this limitation is to reduce the switching loss by using the zero voltage switching technique. In this paper, zero voltage switching resonant inverter for driving an electrodeless fluorescent lamp is discussed. The results of analysis about the inverter are presented and the equations for design are established. And the validity of the analyzed results are verified through the experiment.

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환형 무전극 형광램프의 전자계특성 (Electromagnetic Properties of Ring-Shaped Electrodeless Fluorescent Lamps)

  • 조주웅;이성진;최용성;김용갑;박대희
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2003년도 추계학술대회 논문집 Vol.16
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    • pp.521-524
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    • 2003
  • In recent, there have been several developments in lamp technology that promise savings in electrical power consumption and improved quality of the lighting space. Above all, the advantage of ring-shaped electrodeless fluorescent lamp is the removal of internal electrodes and heating filaments that are a light-limiting factor of conventional fluorescent lamps. The ring-shaped electrodeless lamp is intended as a high efficacy replacement for the incandescent reflector lamp in many applications. Therefore, the life time of ring-shaped electrodeless fluorescent lamps is substantially higher than that of conventional fluorescent lamps and last up to 60,000 hours. In this paper, maxwell 3D finite element analysis program (Ansoft) was used to obtain electromagnetic properties associated with the coil and nearby structures. The electromagnetic emitting properties were presented by 3D simulation software operated at 250kHz and some specific conditions.

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환형 무전극 형광램프의 최적 설계를 위한 특성조건 분석 (A study on Properties Condition for the most suitable design of the Ring-shaped electrodeless fluorescent lamp)

  • 조주웅;이성진;남중희;최용성;김용갑;박대희
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2004년도 하계학술대회 논문집 Vol.5 No.1
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    • pp.211-214
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    • 2004
  • The advantage of ring-shaped electrodeless fluorescent lamp is the removal of internal electrodes and heating filaments that are a light-limiting factor of conventional fluorescent lamps. Therefore, the life time of ring-shaped electrodeless fluorescent lamps is substantially higher than that of conventional fluorescent lamps and last up to 60,000 hours and is intended as a high efficacy replacement for the incandescent reflector lamp in many applications. In this paper, maxwell 3D finite element analysis program(Ansoft) was used to obtain electromagnetic properties associated with the coil and nearby structures. The electromagnetic emitting properties were presented by 3D simulation software operated at 250[kHz] and some specific conditions

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무전극 램프의 효율향상을 위한 안테나의 파라미타 특성 및 휘도특성 (Parameter and Brightness Characteristic Analysis of Antena for Efficiency Improvement on Electrodeless Fluorescent Lamp)

  • 양종경;최기승;백광현;최용성;이종찬;박대희
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2004년도 추계학술대회 논문집 Vol.17
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    • pp.531-534
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    • 2004
  • In Recent, it became necessary to develope the technology about electrodeless fluorescent lamp according to demand of the electodeless fluorescent lamp system that used higher efficiency and advantage of long-lifetime. Especially, in the electordeless fluorescent lamp which used H-mode, efficiency of lamp is decided from matching parameter of antena and inverter. So it is of the utmost importance to design antena and inverter Therefore, this paper used a transformer principle for efficiency rising of electrodeless fluorescent lamp and interpreted an equivalent circuit, used an impedance analyzer in order to confirm a performance enhancement of lamp along design of antenna, and confirmed parameter characteristic of R, L, C, Z, Q-factor along a change of magnetic flux density. Also, this paper confirmed a luminance characteristic of electordeless lamp along parameter change with measuring optical characteristic along a change of magnetic flux density

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무전극램프의 출력전력 변화에 따른 새로운 모델링 기법 (New Modeling Method for an Electrodeless Fluorescent Lamp Using the Relation of Lamp Output Power and the Modeling Coefficients of the Lamp)

  • 임병노;장목순;신동석;박종연
    • 전기학회논문지
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    • 제56권9호
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    • pp.1626-1631
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    • 2007
  • This paper presents a new modeling method using lamp output power and the modeling coefficients of the lamp. The proposed method utilizes the lamp modeling coefficients such as equivalent impedance Z(p), coupling coefficient of the transformer k(p), turns ratio of the transformer n(p), and plasma resistance Rp(p) as a function of lamp output power. The equivalent impedance Z(p) was developed from the equivalent resistance Req(p) and equivalent inductance Leq(p) of the lamp. Simulation and experimental results of the proposed model are presented in order to validate the proposed method. The modeling method can use to design an impedance matching circuit for a Class-D inverter.

무전극램프 전원장치에 대한 기술동향 (A Review of power supply technology of Electrodeless lamps)

  • 박석인;한수빈;정학근;정봉만
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2004년도 전력전자학술대회 논문집(2)
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    • pp.826-829
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    • 2004
  • This paper reviews electrodeless lamp technology. The lamp has very long life time but very high cost compared to conventional lamps such as fluorescent lamp. For optimizing the overall system in performance and cost, power supply as well as lamp is very important. First, this paper describes various electrodeless lamps and its market condition. Then, a lot of circuit technology for constructing the power supply is reviewed and circuit characteristics are discussed.

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무전극램프 에서의 Hysteresis와 모드 변환 특성 (Hysteresis and Mode Transition in Electrodeless Lamp)

  • 이주호;양종경;이종찬;박대희
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 제38회 하계학술대회
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    • pp.1560-1561
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    • 2007
  • Electrodeless fluorescent lamp exhibit two modes of operation : a low density mode in which the power is capacitively coupled to the plasma and which is known as the E-mode, and a higher density mode which is an inductive discharge known as the H-mode. The transition between these two(E to H) mode exhibits hysteresis. It is observed that transition currents change at different frequencies and hysteresis exists not only between the starting and minimum maintaining currents of the electromagnetic mode (H mode) discharge but also between the starting and minimum maintaining currents of the electrostatic mode (E mode) discharge. Hysteresis effect can be important role in dimming system.

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환형 무전극 형광램프의 전자계 시뮬레이션, 전기적 및 광학적 특성 (Electromagnetic Simulation of Ring-shaped Electrodeless fluorescent Lamps and its Electrical and Optical Characteristics)

  • 최용성;조주웅;이영환;김광수;박대희
    • 한국전기전자재료학회논문지
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    • 제17권5호
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    • pp.552-559
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    • 2004
  • In recent, there have been several developments in lamp technology that promise savings in electrical power consumption and improved quality of the lighting space. Above all, the advantage of ring-shaped electrodeless fluorescent lamp is the removal of internal electrodes and heating filaments that are a light-limiting factor of conventional fluorescent lamps. The ring-shaped electrodeless lamp is intended as a high efficiency replacement for the incandescent reflector lamp in many applications. Therefore, the life time of ring-shaped electrodeless fluorescent lamps is substantially higher than that of conventional fluorescent lamps and last up to 60,000 hours. In this paper, maxwell 3D finite element analysis program(Ansoft) was used to obtain electromagnetic properties associated with the coil and nearby structures. The electromagnetic emitting properties were presented by 3D simulation software operated at 250 KHz and some specific conditions. The optical characteristics were measured luminance and a temperature and an optical spectrum distribution for 10 min in a one minute interval at the same time. With a goal of finding alternative materials, we show measurement results of electrical characteristics of a ring-shaped electrodeless fluorescent lamp as a function of frequency and the number of coil turns using a highly permeable($\mu$$_{r}$(equation omitted) 2,000) Mn-Zn ferrite. These results are compared with those of conventional ring-shaped electrodeless fluorescent lamp. It is found that the resistance, inductance and impedance are increased while the quality factor decreases as frequency increases.s.