DOI QR코드

DOI QR Code

스마트폰 무선충전용 강압 컨버터 설계 및 제작

Design and Making of a Buck Converter For Smart Phone Wireless Charging

  • 박종범 (남서울대학교전자공학과) ;
  • 신지희 (남서울대학교전자공학과) ;
  • 안성득 (남서울대학교전자공학과) ;
  • 임학진 (남서울대학교전자공학과) ;
  • 고윤석 (남서울대학교 전자공학과)
  • 투고 : 2017.06.16
  • 심사 : 2017.08.01
  • 발행 : 2017.08.31

초록

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.

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.

키워드

참고문헌

  1. Y. Lho, "A Study on the Design of the Voltage Mode PWM DC/DC Power Converter," Journal of the Korean Society for Railway, vol. 14, no, 5, Oct. 2011, pp. 411-415. https://doi.org/10.7782/JKSR.2011.14.5.411
  2. J. Park, Y. Shin, S. Jo, D. Seo, and S. Jo "DC-DC Converter Design for Battery Charger,", Proc. of the 2015 Spring Korean Society of Automotive Engineering Conf., Sejong, Korea, May, 2015, pp. 1012.
  3. I. Choi, J. Choi, and S. Jung, "Modeling and Analysis of buck Converter in Photovoltaic System," J. of the Korea Institute of Electronic Communication Sciences, vol. 8, no. 7, 2013, pp. 1039-1048. https://doi.org/10.13067/JKIECS.2013.8.7.1039
  4. W. Do and Y. Chae, "Design of DC - DC Converter Controller using Analog Memory," J. of the Korea Institute of Electronic Communication Sciences, vol. 10, no. 3, 2015, pp. 357-364. https://doi.org/10.13067/JKIECS.2015.10.3.357
  5. C. Yoon, "A Study on the Design of High Efficiency Class E Power Amplifier and resonance Coil for High Efficient Wireless Power Transmission," J. of the Korea Institute of Electronic Communication Sciences, vol. 11, no. 10, 2016, pp. 935-940. https://doi.org/10.13067/JKIECS.2016.11.10.935
  6. Y. Chai and W. Do, "Development of 2KW Power Bidirectional LDC for Electrical Vehicle", J. of the Korea Institute of Electronic Communication Sciences, vol. 11, no. 1, Jan. 2016, pp. 65-72. https://doi.org/10.13067/JKIECS.2016.11.1.65
  7. S. Shin, I, Jang, B. Kim, J. Park, Y. Choi, B. Jung, K. Jo, and H. Beak, "Design of DC-DC Buck Converter using AVR," Proc. of the Spring Korean Institute of Electrical Engineers on Electrical Machine and Energy Conversion Systems Conf., Jecheon, Korea, Apr. 2010, pp. 194-196.
  8. D. Shin and C. Oh, AVR ATmega128 Learning Easy to Understand. Seoul: Ohm, 2016.
  9. Y. No, K. Jung, and N. Choi, Power Electronics Third Edition. Seoul: Munundang, 2011.
  10. J. Lim, G. Han, and D. Park, "Battery Charging System using Magnetic Induction," J. of the Korea Institute of Information and Communication Engineering, vol. 17, no. 10, 2013, pp. 2239-2244. https://doi.org/10.6109/jkiice.2013.17.10.2239
  11. M. Han and S. Jung, "RF-based Wireless Power Transfer System for Smartphone Wireless Charging Applications," Proc. of the Summer Korean Institute of Communications and Information Sciences Conf., Jeju, Korea, June 2014, pp. 303-304.