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LCpCs 공진 탱크를 이용한 방전등용 전자식 안정기의 감도특성 해석
박종연(Park Chong yeon),최현희(Choe Hyeon hui) 강원대학교 산업기술연구소 2008 産業技術硏究 Vol.28 No.1
This paper studied the sensitivity characteries of the electronic ballast for the discharge lamps, which implies variation ratio of the output power by the passive element variation. We have derived the equation to represent the lamp power, and obtained the sensitivity characteristic equations. The simulation result shows that the proposed equations are correct and very useful to design the electronic ballast with the LCpCs-type resonant tank.
250 Watt 메탈할라이드 램프용 전자식 Dimming 안정기 개발
박종연(Chong-Yeon Park),정광현(Kwang-hyun Jung),신동석(Dong-suk Shin),박영길(Young-gil Park) 한국조명·전기설비학회 2006 한국조명·전기설비학회 학술대회논문집 Vol.2006 No.5월
In this paper, the dimmable electronic ballast for the 250W metal halide lamp was realized by three stage structure. We developed stable the dimming ballast by using a Micro-controller, and measured the output wattage in the dimming range(illumination) from 100% to about 20%. Under the 35% dimming level, it is possible to cause the redution of lamp"s life. The dimming performance can reduce the light system"s wattage but can reduce the luminance efficiency(lux/watt).
전력선모뎀 및 조광제어 안정기를 이용한 400W Metal Halide Lamp의 조광제어 시스템 개발
박종연(Park, Chong-Yeon),최왕섭(Choi, Wang-Seop) 강원대학교 산업기술연구소 2009 産業技術硏究 Vol.28 No.B
In this paper, we developed remote dimming control system of electronic ballast for 400W metal halide lamp. This ballast could limit ignition current and soft start-up technique by the inverter with LCsCp resonance tank. The dimming circuit can dim from 400W to 200W by varying of the inverter switching frequency. The PLM consists of coupling circuit, BPF(Band-Pass Filter), FSK(Frequency Shift Keying) Modem and μ-controller(Micro Controller). By coupling electronic ballast with PLM, the system that able to dimming the lamp through PLM is demonstrated by experimental results.
세라믹 MHL 의 컨덕턴스 모델을 이용한 전자식 안정기 설계
박종연(Park Chong Yeon),신동석(Shin Dong Seok) 강원대학교 산업기술연구소 2008 産業技術硏究 Vol.28 No.1
This paper presents the conductance model at high frequency of the Ceramic Metal Halide Lamp and the designing method of the electronic ballast with the LCC resonant tank type by using that model. Conductance model is based on a physical phenomenon in the discharge tube of the lamp and model constants of conductance model are obtained by Least Squares Method. After equivalent impedances are determined by the conductance model, The LCC resonance tank is designed by using the equation of the lamp power. Simulation result using PSpice software and experimental results show that the conductance model in this paper is very useful to design the electronic ballast at high frequency for the Ceramic Metal Halide Lamps.
박종연(Chong-Yeon Park),이현진(Hyeon-Jin Lee),최성촌(Seong-Chon Choi) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
본 논문은 HID-Lamp용 하이브리드 안정기의 조도제어 시퀀스에 사용되는 저가의 ZCD(Zero Current Detection)방법을 제안하였다. 이를 위해 램프의 자기식 안정기 구동으로 인한 Dimming 시 인덕터 전류와 램프전압, 전류의 관계와 특성을 파악하여 램프전압으로 인덕 터전류의 상태를 파악할 수 있다는 결론을 얻었으며, 실험을 통하여 제안한 회로의 적용이 타당함을 확인하였다.
250W HID 램프용 전자식 안정기의 손실 특성 분석
박종연(Chong-Yeon Park),정광현(Kwang-Hyun Jung),석경수(Kyung-Su Suk),박창열(Chang-Yeol Park) 한국조명·전기설비학회 2005 한국조명·전기설비학회 학술대회논문집 Vol.2005 No.11월
We have studied the loss characteristics of the electronic ballast for the 250 watt HID lamps. The researched electronic ballast has a low loss, a low THD for input current and the other reliable characteristics. By the experimental results and the analytical method, we concluded that the switching devices loss is 33%, and the Inductances loss is 42.6% of the total losses.