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J Electromagn Eng Sci > Volume 14(1); 2014 > Article
Journal of Electromagnetic Engineering and Science 2014;14(1):25-30.
DOI: https://doi.org/10.5515/JKIEES.2014.14.1.25   
Rectifier Design Using Distributed Greinacher Voltage Multiplier for High Frequency Wireless Power Transmission
Joonwoo Park1, Youngsub Kim1, Young Joong Yoon1, Joonho So2, Jinwoo Shin2
1Department of Electrical and Electronic Engineering, Yonsei University
2Agency for Defense Development
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.
Key words: Conversion Efficiency, Greinacher Voltage Multiplier, Rectifier, Schottky Diode, Wireless Power Transfer


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