대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1996년도 하계학술대회 논문집 B
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- Pages.1304-1306
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- 1996
고압 나트륨램프용 자려식 전자식 안정기의 신호 증폭형 게이트 구동회로
Signal Amplifying Gate Driver of Self-Excited Electronic Ballast for High Pressure Sodium (HPS) Lamp
- Young, Yong-Sik (Deft. of Electrical Engineering, KAIST) ;
- Cho, Gyu-Hyeong (Deft. of Electrical Engineering, KAIST)
- 발행 : 1996.07.22
초록
A regenerative signal amplifying gate driver of self-excited electronic ballast is presented. It can be used for high pressure sodium (HPS) lamp without auxiliary external ignitor. Since the HPS lamp requires very high ignition voltage at start up, the resonant frequency of the circuit must be increased to obtain high voltage oscillations in spite of relatively small resonant current. The presented gate driver amplifies the current of gate drive transformer and raises the gate-source voltage Quickly to turn on the MOSFET switches. Hence, the resonant frequency can be increased more than 100kHz. The HPS lamp used in the simulation and experiment has the rating of 400W input power at 220V input ac voltage source. The experiments show that the resonant frequency is above 150kHz at start up.
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