A high efficient dual-output rectifier for piezoelectric energy harvesting

Yuen, Peng Wah and Chong, Gabriel and Ramiah, Harikrishnan (2019) A high efficient dual-output rectifier for piezoelectric energy harvesting. AEU - International Journal of Electronics and Communications, 111. p. 152922. ISSN 1434-8411, DOI https://doi.org/10.1016/j.aeue.2019.152922.

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Official URL: https://doi.org/10.1016/j.aeue.2019.152922


In this paper, a high efficient active NMOS dual-output rectifier for piezoelectric energy harvesting (PEH) in CMOS technology is proposed. The rectifier adopts a cross-coupled active NMOS topology producing two output DC voltages. A DC-DC combiner at the rectifier's output is employed to sum the output DC voltages which improves the effective Voltage Conversion Efficiency (VCE) and Power Conversion Efficiency (PCE). Simulated on a standard 65-nm CMOS technology, the proposed rectifier achieves a VCE > 98% across a connected output load of Rrec > 9 kΩ and a peak PCE of ∼84% for Rrec = 12 kΩ. Compared to conventional piezoelectric rectifiers, the PCE of the proposed rectifier is significantly improved with comparative VCE performance.

Item Type: Article
Uncontrolled Keywords: Piezoelectric Energy Harvesting (PEH); Cross-Coupled Active NMOS Rectifier; DC-DC combiner; Voltage Conversion Efficiency (VCE); CMOS
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 04 Nov 2019 08:24
Last Modified: 04 Nov 2019 08:24
URI: http://eprints.um.edu.my/id/eprint/22955

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