A High-Efficient Wireless Power Receiver for Hybrid Energy-Harvesting Sources

Danial Khan, Seong Jin Oh, Sungku Yeo, Youngho Ryu, Sol Hee In, Reza Eftekhari Rad, Imran Ali, Young Gun Pu, Sang Sun Yoo, Minjae Lee, Keum Cheol Hwang, Youngoo Yang, Kang Yoon Lee

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


This article presents a power-efficient hybrid energy-harvesting system that scavenges energy from solar, vibration, and radio frequency (RF) energy sources and converts into regulated output dc voltage courtesy buck-boost dc-dc converter. The proposed architecture incorporates tetra-paths for maintaining high power conversion efficiency (PCE) over extended input power range (-10 to 30 dBm). A time-domain maximum power point tracking technique is proposed for solar energy harvester. A high-efficiency full wave rectifier is designed for triboelectric rectifier. A 5.8-GHz RF-dc converter with adaptive matching is proposed to increase dynamic range of the input power. The chip is implemented in 0.18-μm bipolar-CMOS-DMOS process. The die area of the chip is 2.8 mm × 5.0 mm, including the pads. The solar and triboelectric energy harvesters achieve a measured peak efficiencies of 75.4% and 92.3%, respectively. The high-power 5.8-GHz RF-dc converter achieves measured PCE of 76% at 30 dBm input power. The low-power dual-band RF-dc converter operating at 900 MHz and 2.4 GHz obtains measured peak efficiencies of 73% and 71.9% at 0 dBm input, respectively. The buck-boost dc-dc converter employed in the proposed hybrid energy harvesting system achieves a measured peak PCE of 94.5%.
Original languageEnglish (US)
Pages (from-to)11148-11162
Number of pages15
JournalIEEE Transactions on Power Electronics
Issue number10
StatePublished - Oct 1 2021
Externally publishedYes

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Generated from Scopus record by KAUST IRTS on 2023-09-23


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