A Bidirectional Current Sensor based on CT with Diode Rectifier and MOSFET for Bidirectional Current-fed DC-DC Converter

• Iyasu Seiji

  Research DIV. 3, SOKEN, INC.

• Hayashi Yuji

  Research DIV. 3, SOKEN, INC.

• Handa Yuichi

  Electrification Components ENG. DIV. 2, DENSO Corporation

• Nakamura Kimikazu

  Electrification Components ENG. DIV. 2, DENSO Corporation

• Wada Keiji

  Department of System Design, Tokyo Metropolitan University

Abstract

Electric vehicles are equipped with an isolated DC-DC converter for controlling the bidirectional DC power flow. In this case, a current sensor was installed inside the circuit. This paper proposes a current sensor using current transformers for bidirectional DC-DC converters. The current sensor comprises a current transformer (CT), diode rectifier, and MOSFET. The current sensor can detect a pulse current containing a DC component without any magnetic saturation. This paper shows a circuit configuration of the bidirectional current sensor, and the principle of the bidirectional current detection of the sensor is analyzed. The validity of this analysis is verified through an experiment with the DC-DC converter rated at 150V and 1.4kW.

Journal

• IEEJ Journal of Industry Applications

  IEEJ Journal of Industry Applications 8 (3), 437-443, 2019-05-01

  The Institute of Electrical Engineers of Japan

Keywords

• bidirectional DC-DC converter
• bidirectional current sensor
• current transformer

Details

• CRID: 1390282763111876224
• NII Article ID: 130007641628
• DOI: 10.1541/ieejjia.8.437
• ISSN: 21871108
• ISSN: 21871094
• NDL BIB ID: 029661153
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I029661153
• Web Site: https://www.jstage.jst.go.jp/article/ieejjia/8/3/8_437/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed