Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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A System on the Digital-Control Algorithm of a High-Speed PWM Power System for MRI System

고속 PWM을 이용한 MRI 용 전원의 디지털 제어 알고리즘에 관한 연구

  • 허현구 (현대전자 통신사업부) ;
  • 백광렬 (부산대학교 전자전기통신공학부)
  • Published : 2000.03.01
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Abstract

In this paper a digital-control algorithm of a power system suing a high-speed PWM for a MRI system is proposed. The MRI system requires an elaborate ladder-shaped current source. And the load of current source is the inductance with resistance. For the inductive load a voltage output of the power system has hi호 frequency components. Therefore this system requires high-speed PWM above 80KHz, A high speed PWM control algorithm which satisfies those conditions is designed. Finally the performance of proposed control algorithm is shown by simulation.

Keywords

References

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