논문 해외 국제전문학술지(SCI급) An Auto-Configurable Dual-Mode MPPT for Energy Harvesting With 12 nW-180 mW Conversion Range
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2022-10
- 저자명 Heesung Roh, Youngwoo Ji, Jae-Yoon Sim
- 학술지명 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
- 발행처명 IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 3
홈페이지논문 초록 (Abstract)
This brief presents an energy harvester IC with the maximum power point tracking (MPPT) scheme for an ultra-wide input power range. In the energy harvester, the proposed auto-configurable dual-mode MPPT algorithm adaptively switches between a fixed charge search (FCS) mode and a fixed frequency search (FFS) mode, according to the input power level. The implemented chip in 180nm CMOS process achieves the widest input power range of 12nW-to-180mW with a peak efficiency of 93.6%, occupying 1.14 x 1.24mm(2). The proposed hill climbing-based MPPT scheme also shows a conversion efficiency of > 30% even at 12nW input power while consuming a quiescent current of 2.2nA.