• Journal of Power Electronics
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• 제12권1호
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• pp.215-222
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• 2012

Lighting represents a significant component of commercial buildings, particularly office buildings. Fluorescent lighting is invariably used in all commercial, industrial and residential areas. A significant amount of lighting energy is wasted every day by leaving the lights on and not utilizing daylight energy. However, if daylight illuminance can be harnessed, this will reduce the electricity consumption of fluorescent lamps and save energy. This paper explains possible significant savings in lighting energy consumption and hence in costs, without reducing the performance and visual satisfaction in office or industrial buildings. It is proposed to obtain energy saving by reducing the supply voltage without degradation in lighting performance. Experimental results confirm that as much as 20% of electrical energy can be saved by reducing about 9% of the supply voltage, without noticeably affecting light output while complying with lighting standard limits.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 1996년도 추계학술발표회논문집
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• pp.37-42
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• 1996

형광램프의 점등에 필요한 안정기를 전자화하여, 안정기의 소형경량화 및 안정기의 효율을 높일 수 있다. 또한, 동작주파수를 높일 수 있다. 또한, 동작주파수를 높임으로써 램프의 효율도 향상시킬 수 있다. 본 논문에서는 직관 형광램프(10W)와 콤팩트 형광램프(13W)에 대하여, 입력 주파수에 대한 형광램프의 발광효율의 변화를 실험하였다. 입력 주파수의 증가에 의하여 두 가지 램프의 효율이 증가하였고, 80[kHz] 이상에서는 효율의 변화가 둔화되었다.

• 조명전기설비학회논문지
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• 제13권3호
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• pp.14-16
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• 1999

본 논문은 수전설비 용량을 계산하기 위한 형광등 기구의 기초 자료룰 제공하고 잇다. 형광등기구는 전원전압 변동에 유효전력 및 무효전력이 비선형적으로 변환한다. 따라서 이들 자료는 실측에 의하여만 제공된다. 본 논문에서는 40[W] 형광램프를 사용하는 등기구를 대상으로 여러 가지 안정기 교류에 대하여 전원전압 교류 200∼240[V] 변동 범위 내에서의 유효전력 및 무효 전력을 측정한 데이터를 제공하고 있다.

• 한국전기전자재료학회논문지
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• 제21권12호
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• pp.1105-1110
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• 2008

In this study, plasma flat fluorescent lamps (FFLs) having two electrode type structures of surface discharge was fabricated by screen printing and were characterized using spectra-radiometer and square pulse power supply. Two types of FFLs (cross-type and line-type electrode structure) were compared with variation of discharge shape and electrode distance.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2004년도 추계학술대회 논문집 Vol.17
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• pp.644-647
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• 2004

Recently, the environmental problem has received considerable attention. so, many lamps have been developing for environmental requirement and energy efficiency, also, at glow discharge lamp researchers try to reduce energy spending that is power saving lamp. this kind requirement agree with strong points of electrodeless fluorescent lamp has received to now lighting sauce. In this paper, at the research and development of Electrodeless Fluorescent Lamp phase, according to ferrite C.F.D(Computational Fluid Dynamics) Simulation and lamp brightness character are measured to find optimization design requirements of RF antenna which is impotent for emission of lamp.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1995년도 하계학술대회 논문집 C
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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.

• 조명전기설비학회논문지
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• 제24권12호
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• pp.1-8
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• 2010

Recently, adjustable CCT(Correlated Color Temperature) luminaire for the human circadian rhythm and room atmosphere has been developed. Accurate CCT control is needed in the luminaire for the human circadian rhythm. Therefore, appropriate CCT calculation method for each of fluorescent lamps and white LEDs was examined using three CCT calculation methods in this study. To make accurate CCT combination, CCT for two different CCT lamps was separately measured. And this study compared and analyzed proportionally calculated CCT value with measured value from the compounded luminaire with the two lamps.

• 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.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2008년도 제39회 하계학술대회
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• pp.1007-1009
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• 2008

This paper presents an architecture for driving multiple paralleled cold cathode fluorescent lamps (CCFLs) for back lighting applications. The key to the architecture is a proposed capacitive coupling approach for lamp ignition. This system is consist of a flyback converter, a single inverter to drive multiple lamps and conductive floating reflector. The topology is capable of driving a number of parallel lamps with independent accurate lamp, current regulation and improving cost effectiveness with significant reduction in size and weight, compared to typical high frequency ac ballast. Experimental demonstration results for ten of parallel CCFLs with simultaneous ignition. This like the EEFL it will be able to use the CCFL is the thing. Also, it investigates the effect where the leakage current goes mad to the Lamp.

• 한국조명전기설비학회지:조명전기설비
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• 제9권3호
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• pp.67-72
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• 1995

In this paper, we investigate the numbers and electrical capacities of general and industrial Korean lighting apparatus. The results show that the number of lighting apparatus are 68,211,000 in general and 53,836,000 in industrial building and the capacities of lighting apparatus are 3,261,609 kW in general and 4,278,683 kW in industrial building. The ratio of Lighting apparatus is that fluorescent lamps are 56.9%, high intensity discharge lamps are 29.7%, and incandescent lamps are 12.1%.