Development of High-voltage Semiconductor Switch for Command Charging

지령충전을 위한 고전압 반도체 스위치 개발

  • Park, S.S. (Pohang Accelerator Laboratory, POSTECH) ;
  • Lee, K.T. (Pohang Accelerator Laboratory, POSTECH) ;
  • Kim, S.H. (Pohang Accelerator Laboratory, POSTECH) ;
  • Park, S.W. (Pohang Accelerator Laboratory, POSTECH) ;
  • Nam, S.H. (Pohang Accelerator Laboratory, POSTECH)
  • 박성수 (포항공과대학교 가속기연구소) ;
  • 이경태 (포항공과대학교 가속기연구소) ;
  • 김상희 (포항공과대학교 가속기연구소) ;
  • 박상욱 (포항공과대학교 가속기연구소) ;
  • 남상훈 (포항공과대학교 가속기연구소)
  • Published : 1999.07.19

Abstract

To improve the reliability of the klystron-modulator systems, the stable operations of the thyratron an important factor of the system are required. The thyratron always has a possibility of self-fire according to the conditions of the applied high voltage and this induces the system fault. Therefore a command charging method was introduced to reduce the applied tim8 of the high voltage into the thyratron. The high voltage switch used in the command charging method is the SCR (1.6 kV, 50A) and consists of 10 SCRs in series to discharge 10 kV. A pulse transformer was used to apply the trigger pulse. The objectives of this research are the fabrication of the semiconductor switch and the study of the experimental result of the operation characteristics of the high voltage semiconductor switch.

Keywords