Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2002.05a
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- Pages.176-179
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- 2002
A Study on Output Characteristics of the CO2 Laser with DC-DC Converter System
DC-DC Converter System에 의한 CO2 레이저 출력 특성에 관한 연구
- Kim, Geun-Yong (Dept. of Electrical Eng., Pusan national Univ.) ;
- Chung, Hyun-Ju (Dept. of Electrical Eng., Pusan national Univ.) ;
- Min, Byoung-Dae (Dept. of Electrical Eng., Pusan national Univ.) ;
- Kim, Yong-Chul (Dept. of Electrical Eng., Pusan national Univ.) ;
- Lee, Yu-Soo (Dept. of Electrical Eng., Pusan national Univ.) ;
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Kim, Hee-Je
(Dept. of Electrical Eng., Pusan national Univ.)
- Published : 2002.05.11
Abstract
Nowadays, CO2 lasers are used widely in many applications such as materials fabrication. communications, remote sensing and military purpose etc. It is important to control the laser output power in those fields. In this paper, current resonant half-bridge inverter and Cockcraft-Walton circuit are used to vary the laser output power. This laser power supply is designed and fabricated which has less switching losses and compact size. Also we used an IGBT(insulated Gate Bipolar Transistor) as a switching device of a power supply and PIC one-chip microprocessor are used to control the gate signal of the IGBT precisely. We investigated the output characteristics of this CO2 laser. As a result. the maximum laser output power of 26 [W] is obtained at the resonant frequency of about 13 [kHz].
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