Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Design of a High-Voltage Piezoelectric Converter for Airbag Ignition Modules

  • Xiao, Hongbing (School of Computer and Information Engineering, Beijing Technology and Business University) ;
  • Du, Yu (School of Mechanical, Electrical and Information Engineering, Shandong University) ;
  • Bai, Chunyu (Beijing Changjiangyuan Science and Technology CO., LTD.) ;
  • Guo, Zerong (School of Mechatronics Engineering, Beijing Institute of Technology) ;
  • Yen, Kang K. (Electrical and Computer Engineering, Florida International University)
  • Received : 2012.10.09
  • Published : 2014.01.20
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Abstract

Due to the requirements for high reliability and accuracy, safety issues for airbag ignition systems need to be studied. In this paper, a high-voltage piezoelectric converter is designed to improve these requirements in airbag ignition systems. The proposed converter includes an inverter drive circuit, a Rosen piezoelectric transformer (PZT), an output circuit and a feedback control circuit. The key components of the high-voltage piezoelectric transformer are analyzed in detail. In addition, the proposed converter system is simulated and implemented for testing. The experimental results show that when the power supply is turned on, the charging time is less than 800ms. Furthermore, the output voltage of this converter can be kept between 2.9kV and 3.1kV, under high-efficiency constant current charging mode and zero-voltage switching conditions.

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References

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