Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Rectifier Design Using Distributed Greinacher Voltage Multiplier for High Frequency Wireless Power Transmission

  • Park, Joonwoo (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Kim, Youngsub (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Yoon, Young Joong (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • So, Joonho (Agency for Defense Development) ;
  • Shin, Jinwoo (Agency for Defense Development)
  • Received : 2014.01.28
  • Accepted : 2014.03.10
  • Published : 2014.03.31
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Abstract

This paper discusses the design of a high frequency Greinacher voltage multiplier as rectifier; it has a greater conversion efficiency and higher output direct current (DC) voltage at high power compared to a simple halfwave rectifier. Multiple diodes in the Greinacher voltage multiplier with distributed circuits consume excited power to the rectifier equally, thereby increasing the overall power capacity of the rectifier system. The proposed rectifiers are a Greinacher voltage doubler and a Greinacher voltage quadrupler, which consist of only diodes and distributed circuits for high frequency applications. For each rectifier, the RF-to-DC conversion efficiency and output DC voltage for each input power and load resistance are analyzed for the maximum conversion efficiency. The input power with maximum conversion efficiency of the designed Greinacher voltage doubler and quadrupler is 3 and 7 dB higher, respectively;than that of the halfwave rectifier.

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References

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