A 1-mW solar-energy-harvesting circuit using an adaptive MPPT with a SAR and a counter

Hoonki Kim; Young Jae Min; Chan Hui Jeong; Kyu Young Kim; Chulwoo Kim; Soo Won Kim

doi:10.1109/TCSII.2013.2258262

A 1-mW solar-energy-harvesting circuit using an adaptive MPPT with a SAR and a counter

Hoonki Kim, Young Jae Min, Chan Hui Jeong, Kyu Young Kim, Chulwoo Kim, Soo Won Kim

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

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-μm CMOS process. The MPPT circuit reduces the transient response time by 76.6%, dissipates only 110 μW , and shows MPPT efficiency of 99.6%.

Original language	English
Article number	6514479
Pages (from-to)	331-335
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	60
Issue number	6
DOIs	https://doi.org/10.1109/TCSII.2013.2258262
Publication status	Published - 2013

Keywords

Energy harvesting
maximum power point tracking (MPPT)
solar cell
wireless sensor network (WSN)

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/TCSII.2013.2258262

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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-μm CMOS process. The MPPT circuit reduces the transient response time by 76.6%, dissipates only 110 μW , and shows MPPT efficiency of 99.6%.",

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AU - Jeong, Chan Hui

AU - Kim, Kyu Young

AU - Kim, Chulwoo

AU - Kim, Soo Won

PY - 2013

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AB - 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-μm CMOS process. The MPPT circuit reduces the transient response time by 76.6%, dissipates only 110 μW , and shows MPPT efficiency of 99.6%.

KW - Energy harvesting

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A 1-mW solar-energy-harvesting circuit using an adaptive MPPT with a SAR and a counter

Abstract

Keywords

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