Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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A New High Efficiency and Low Pronto On-Board DC/DC Converter for Digital Car Audio Amplifier

  • Kim Chong-Eun (Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology) ;
  • Han Sang-Kyoo (Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology) ;
  • Moon Gun-Woo (Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology)
  • Published : 2004.07.01
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Abstract

A new high efficiency and low profile on-board DC/DC converter for digital car audio amplifier is proposed. The proposed converter shows the continuous input current, no DC excitation current of the transformer, the minimized electro-magnetic interference (EMI), no output inductor, and the low voltage stress of the secondary rectifier diodes. The 60W industrial sample of the proposed converter is implemented for digital car audio amplifier and the measured efficiency is $88.3\%$ at nominal input voltage.

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