Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Micro-scale Solar Energy Harvesting System with a New MPPT control

새로운 MPPT 제어기능을 갖는 마이크로 빛에너지 하베스팅 회로

  • Yoon, Eun-Jung (Department of Electronics Engineering, Incheon National University) ;
  • Yoon, Il-Young (Department of Electronics Engineering, Incheon National University) ;
  • Choi, Sun-Myung (Department of Electronics Engineering, Incheon National University) ;
  • Park, Youn-Soo (Department of Electronics Engineering, Incheon National University) ;
  • Yu, Chong-Gun (Department of Electronics Engineering, Incheon National University)
  • Received : 2013.10.01
  • Accepted : 2013.11.06
  • Published : 2013.11.30
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Abstract

In this paper micro-scale solar energy harvesting system with a new MPPT control are proposed. In conventional solar energy harvesting systems, continuous perturbation techniques of the clock frequency or duty cycle of a power converter have been used to implement MPPT(Maximum Power Point Tracking) control. In this paper, we propose a new MPPT technique to control the duty cycle of a power switch powering a power converter. The proposed circuit is designed in $0.35{\mu}m$ CMOS process, and the designed chip area including pads is $770{\mu}m{\times}800{\mu}m$.

본 논문에서는 새로운 MPPT 제어기능을 갖는 빛에너지 하베스팅 회로를 제안한다. 기존의 빛 에너지 하베스팅 회로에서는 MPPT(Maximum Power Point Tracking) 기능을 구현하기 위해 전력 변환기(power converter)를 동작시키기 위한 클록의 주파수나 듀티 싸이클(duty cycle)을 지속적으로 변화시키는 방법을 사용하고 있다. 본 논문에서는 전력변환기에 전력 공급을 위한 전력 스위치의 듀티 싸이클을 제어하여 MPPT 기능을 구현하는 새로운 방법을 제안한다. 제안된 회로는 $0.35{\mu}m$ CMOS 공정으로 설계 되었으며 칩 면적은 패드를 포함하여 $770{\mu}m{\times}800{\mu}m$이다.

Keywords

References

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