A 37.5kV A Class Power Supply for Diagnostic X -ray by High-Frequency Resonant Inverter Type

37.5kVA급 고주파 공진형 인버터식 진단 X선 전원장치

  • 김학성 (한국전기연구소 전력전자 연구부) ;
  • 유동욱 (한국전기연구소 전력전자 연구부) ;
  • 임근희 (한국전기연구소 전력전자 연구부) ;
  • 완충연 (성균관대학교 공과대학 전기공학과)
  • Published : 1996.12.01

Abstract

This paper presents a 37.5kVA (125kVp, 300mA) high frequency inverter type power supply for diagonostic X-ray generator with two HFHV (high-frequency high-voltage) isolating transformers. The output regulations, X-ray tuve voltage and tube current, are obtained by two high frequency inverters with the each other feedback PI controller and operating time switch for selecting shooting time and synchronizing two inverters. The operating modes and design consideration of the proposed power supply are given. Issues in the design of two HFHV isolating transformersfors high volage genrating and filament heating are discussed. Experimental results are presented to verify the performance of the designed power supply for varying load conditions. The proposed apparatus has several advnatages, e.g., the fast rising time of tube voltae, accuracy and reduced component size etc.

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