반도체디스플레이기술학회지 (Journal of the Semiconductor & Display Technology)

한국반도체디스플레이기술학회 (The Korean Society Of Semiconductor & Display Technology)
권호 표지

RF무선충전을 위한 슈퍼커패시터 충전특성 측정

Measurement of Supercapacitor Charging Characteristic for RF Wireless Charging

  • 손명식 (순천대학교 전자공학과)
  • Son, Myung Sik (Department of Electronic Engineering, Sunchon National University, KOREA)
  • 투고 : 2021.09.03
  • 심사 : 2021.09.14
  • 발행 : 2021.09.30
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초록

In this paper, we studied the charging characteristics of high-capacity supercapacitor with high current for RF wireless charging system for smart phone charging. The dc output of the RF-DC receiver is connected to supercapacitor after which is connected to DC-DC converter for charging a smart phone. This configuration stably supplies voltage and current for charging it. Studies show that the higher charging current use, the rapidly shorter the charging time of supercapacitor is. The currents of 2A, 10A and 27A were used for charging supercapacitors. The charging time was measured for 3000F, 6000F, 12000F supercapacitors which is parallelly connected with 3000F supercapacitors.

키워드

과제정보

순천대학교 교연비 사업에 의하여 연구되었음.

참고문헌

  1. Biao Hu, Hao Li, Tianming Li, Haiyang Wang, Yihong Zhou, Xiaoyun Zhao, Xin Hu, Xuekun Du, Yulong Zhao, Xiang Li, Tian Qi, Mohamed Helaoui, Wenhua chen, Fadhel Ghannouchi, "A long-distance high-power microwave wireless power transmission system based on asymmetrical resonant magnetron and cyclotron-wave rectifier", Energy Reports 7, pp.1154-1161, 2021. https://doi.org/10.1016/j.egyr.2020.12.026
  2. Seong Hun Lee and Myung Sik Son, "5.8GHz 25W Microwave Wireless Power Transmission System Development and Measurement", Journal of the Semiconductor & Display Technology, Vol 16, No.1, pp. 21-24, 2019.
  3. Myung Sik Son, "Smart Phone RF Wireless Charging with 5.8-GHz Microwave Wireless Power Receiver", Journal of the Semiconductor & Display Technology, Vol. 20, No.2, pp. 25-28, 2021.
  4. Seong Hun Lee and Myung Sik Son, "RF-DC Voltage Multiplier Design and Fabrication for 5.8GHz Microwave Wireless Power Transmission", Journal of the Semiconductor & Display Technology, Vol 16, No.2, pp. 1-4, 2017.
  5. 1.5V to 37 Volt 30 Amp Power Supply, taken from http://www.zen22142.zen.co.uk/Circuits/Power/3730.htm