A 1-mW Solar-Energy-Harvesting Circuit Using an Adaptive MPPT With a SAR and a Counter
- Authors
- Kim, Hoonki; Min, Young-Jae; Jeong, Chan-Hui; Kim, Kyu-Young; Kim, Chulwoo; Kim, Soo-Won
- Issue Date
- 6월-2013
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Energy harvesting; maximum power point tracking (MPPT); solar cell; wireless sensor network (WSN)
- Citation
- IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v.60, no.6, pp.331 - 335
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
- Volume
- 60
- Number
- 6
- Start Page
- 331
- End Page
- 335
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/103111
- DOI
- 10.1109/TCSII.2013.2258262
- ISSN
- 1549-7747
- Abstract
- This brief presents an energy-harvesting system that uses an adaptive maximum power point tracking (MPPT) circuit for 1-mW solar-powered wireless sensor networks. The proposed MPPT circuit exploits a successive approximation register and a counter to solve the tradeoff problem between a fast transient response and a small steady-state oscillation with low-power consumption. The proposed energy-harvesting circuit is fabricated using a 0.35-mu m CMOS process. The MPPT circuit reduces the transient response time by 76.6%, dissipates only 110 mu W, and shows MPPT efficiency of 99.6%.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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