The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Design and Making of a Buck Converter For Smart Phone Wireless Charging

스마트폰 무선충전용 강압 컨버터 설계 및 제작

  • 박종범 (남서울대학교전자공학과) ;
  • 신지희 (남서울대학교전자공학과) ;
  • 안성득 (남서울대학교전자공학과) ;
  • 임학진 (남서울대학교전자공학과) ;
  • 고윤석 (남서울대학교 전자공학과)
  • Received : 2017.06.16
  • Accepted : 2017.08.01
  • Published : 2017.08.31
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Abstract

In this research, buck converter was designed and manufactured to improve the wireless charging of smartphone through PWM control technology based on micro controller. A feedback control circuit was fabricated using a voltage sensor so that the output voltage follows the reference voltage. The buck converter, 311V is output as 12V, DC voltage 12V is connected wirelessly, and 5V charge voltage is output. We also confirmed the availability of the buck converter for wireless charging of smart phone through experiments.

본 연구에서는 마이크로 컨트롤러를 기반으로 한 PWM 제어 기술을 통해 스마트폰 무선충전을 위한 강압 컨버터를 설계 및 제작하였다. 전압센서를 이용해 출력전압이 기준전압을 따라가도록 피드백 제어 회로를 제작하였다. 강압 컨버터로 311V를 12V 로 출력하고 DC 전압 12V를 무선으로 연결하여 5V 충전 전압을 출력한다. 실험을 통해 스마트폰 무선 충전용 강압 컨버터의 유효성을 확인하였다.

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References

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