The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A New High Speed Pulsed Mode Switching DC Power Supply with High Power Factor

새로운 방식의 고속 펄스모드 스위칭 기능을 갖는 고역률 직류전원장치

  • 안종수 (부경대 공대 전기공학과) ;
  • 노의철 (부경대 공대 전기공학과) ;
  • 김인동 (부경대 공대 전기공학과)
  • Published : 2004.01.01
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Abstract

A new high voltage DC power supply is proposed. The proposed power supply is constructed with several power converters connected in series. It is easy to obtain high DC voltage for the same structure of each power converter. The output DC power of the proposed power supply can be disconnected from the load within several hundred microseconds at the instant of a load short-circuit fault. The rising time of the output DC voltage is also as small as several hundred microseconds, and there is no overshoot of the voltage because all of the output filter capacitors keep undischarged state even in load short-circuit condition. Therefore, the proposed scheme is suitable for the protection of frequent output short-circuit and fast on/off switching of output DC voltage. The proposed power supply has improved features such as simple structure, high power factor, and reduced size and volume compared with the conventional schemes. The operating principle is described and the validity of the proposed scheme is proved through simulations and experiments.

Keywords

References

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