대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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연속전류모드를 위한 새로운 순회복 게이트 드라이브

A NEW SOFT RECOVERY DRIVE FOR CONTINUOUS CONDUCT10N MODE

  • Kim, Hack-S. (Dept. of Electrical Engineering, Korea Advanced Institute of Science and Technology(KAIST)) ;
  • Jung, Yong-C. (Dept. of Electrical Engineering, Korea Advanced Institute of Science and Technology(KAIST)) ;
  • Cho, Gyu-H. (Dept. of Electrical Engineering, Korea Advanced Institute of Science and Technology(KAIST))
  • 발행 : 1993.07.18
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초록

New soft recovery drive which can alleviate the loss due to reverse recovery of diode is proposed. By using this drive, the reverse current of the diode is minimized and stabilized because there is inner local feedback loop between the turn-on current of the power MOSFET and the reverse recovery current of the diode. The loss and EMI noise can be considerably reduced in this way. Brief operational principle and experimental results are included to verify the usefulness.

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