• The Magazine for Energy Service Companies
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• s.71
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• pp.36-39
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• 2011

하나를 잘 하는 사람은 열 가지를 잘한다는 말이 있다. 이 말은 한 가지를 잘하기가 그만큼 어렵다는 뜻일 것이다. (주)화신이앤비가 만드는 무전극램프는 이미 국내를 넘어 세계에서도 그 가치에 주목하고 있다. 화신이앤비는 우리나라 4대 대기업인 삼성, 대우, 현대, LG 등에 제품을 납품함으로 80%의 에너지절감에 앞장섰다. 더 큰 열정으로 미래를 만들어 가고 있는 (주)화신이앤비를 찾아 그 희망찬 얘기를 들었다.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2002.11a
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• pp.9-13
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• 2002

This paper describes the first-year accomplishments in the R'||'&'||'D project entitled, "Electrodeless Fluorescent Lamp Technology Using High-Frequency Discharges (Linear and Circular Type)," supported by a contract from the Korea Energy Management Corporation (KEMCO). One of the most important accomplishments in the prihect is that the luminance of electrodeless fluorescent lamps is increased more than 25% when the hybrid technique of capacitive and inductive couplings is utilized for both linear and circular types of high-frequency discharge fluorescent lamps compared to the case where pure capacitive couplings are used. We present the results of the experiments and the status of the development efforts in the project.t.

• Proceedings of the KIEE Conference
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• 2005.07c
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• pp.2415-2417
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• 2005

본 논문에서는 고출력 방전 광원으로 사용되는 분자 가스 혹은 분자 증기 상태의 발광원의 종류, 그들의 물리적 및 광학적 특성, 그리고 방전 특성에 관하여 일반적으로 잘 알려지지 않은 사항들을 논의한다. 특히 고출력 조명 램프를 위한 광원으로서 연색성, 광 변환 효율, 물리화학적 특성들을 연관하여 설명한다. 최근 발견된 분자 증기의 종류 및 그들의 물리적 성질들을 중점적으로 설명한다.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.10 no.6
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• pp.487-495
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• 2017

The thermal characteristics of the electrodeless lamp are one of the main factors that determine the design and performance of the lamp. The coupler changes the impedance characteristic by heat and its use temperature is usually within about $150^{\circ}C$. In this study, we observed the phenomenon when the coupler was exposed at a temperature of $150^{\circ}C$ or higher, which has not been discussed so far. Two types of coupler A and coupler B with different spacing between the inner tube and the coupler were analyzed for electrical, thermal and optical properties and deterioration characteristics with different heat and heat shielding conditions. First, the impedance of the system is obtained and used as a criterion for analyzing the electrical characteristics through it. The diameters of the two types of couplers are 1 mm, and the experimental result shows that the coupler diameter is 1 mm, which can cancel out the loss of the magnetic field strength. Therefore, based on these results, when the coupler is exposed to high temperature of about $200^{\circ}C$, the efficient design method corresponding thereto is proposed.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.17 no.3
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• pp.1-10
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• 2003

Comparing to the conventional power systems, PV(photovoltaic) outdoor lighting system applications are evaluated as the most economical application. In this paper, we installed two PV lighting systems, which uses LPS(low pressure sodium) and electrodeless lame as their loads, and applied a computer-based data acquisition system using the Labview program for monitering purpose and effective operations, considering battery life time Also, we observed the generated power from the solar array, and energy losses comparing to its installed capacity. Because most PV system performance procedures have looked at the performance of the individual components and have deficiency of addressing how the integrated system works, we confirmed the decrease possibility of the solar amy capacity after analyzing the performance of the installed PV lighting systems.

• Proceedings of the KIEE Conference
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• 1995.07c
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• pp.1401-1403
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• 1995

This paper investigates the light output characteristics of an electrodeless H-discharge lamp. The existing cylindrical fluorescent lamps were wound around with an induction coil of varying size, and were driven by RF power. The light output and the luminous efficacy were measured according to variations of the induction coil gap and the lamp power, respectively. The experimental results show that the luminous efficacy of the lamp is as much as existing electrodeless lamps and the luminous efficacy of lamps are high between 10W and 20W. Theoretical analyses using computer simulation show that the circuit matching is easier in the external coil configuration than in the internal one, and that the current and the power distributions near the coil are shower in t.

• Proceedings of the KIEE Conference
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• 2006.04b
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• pp.264-266
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• 2006

This paper presents a impedance model for the simulation of both static and dynamic characteristics of the electrodeless fulorescent lamp. A behavioral, PSpice compatible, model has been developed for the electrodeless fluorescent lamp. The model was tested at steady-state for different power levels, with an LCC modulated drive. and this model is established from some equations and measured electrical characteristics of EEFL. The validity of proposed lamp model is verified from the simulation and experimental results.

• Proceedings of the KIEE Conference
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• 2004.11c
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• pp.487-489
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• 2004

As the electrodes are not needed, the electrodeless lamps using the induction discharge have a long lifetime and are robust against the variable output condition of a ballast. This paper proposed a dimmable resonant inverter for the electrodeless lamps. The proposed resonant inverter formed a half bridge inverter adopted FWM to control the average output power of the inverter and the illumination of a lamp. In this paper, the proposed dimming algorithm was described and the prototype experimental setup for 100W electrodeless lamps was carried out to verify the validity of the proposed dimming method.

• Proceedings of the KIPE Conference
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• 1997.07a
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• pp.261-265
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• 1997

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 th 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.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2003.05e
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• pp.92-95
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• 2003

In this paper, the emission properties of electrodeless fluorescent lamp were discussed using the inductively coupled plasma. To transmit the electromagnetic energy into the chamber, a RF power of 13.56MHz was applied to the antenna and considering the Ar gas pressure and the RF electric power change, the emission spectrum, Ar-I line, luminance were investigated. At this time the input parameter for ICP RF plasma, Ar gas pressure and RF power were applied in the range of 10~60m Torr, 10~300W respectively.