The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Phase-Shifted Full Bridge(PSFB) DC/DC Converter with a Hold-up Time Compensation Circuit for Information Technology (IT) Devices

홀드 업 타임 보상회로를 가진 IT 기기용 Front-end PSFB DC/DC 컨버터

  • Yi, Kang-Hyun (School of Electronic and Electric Eng., Daegu University)
  • Received : 2013.07.08
  • Accepted : 2013.09.09
  • Published : 2013.10.20
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Abstract

A hold-up time compensation circuit is proposed to get high efficiency of the front-end phase-shifted full bridge DC/DC converter. The proposed circuit can make the phase-shifted full bridge front-end DC/DC converter built with 0.5 duty ratio so that the conduction loss of the primary side and voltage stress across rectifier in the secondary side are reduced and the higher efficiency can be obtained. Furthermore, the requirement of an output filter significantly can diminish due to the perfect filtered waveform. A 12V/100A prototype has been made and experimental results are given to verify the theoretic analysis and detailed features.

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References

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