共 9 条
A high efficient dual-output rectifier for piezoelectric energy harvesting
被引:14
作者:
Yuen, Peng Wah
[1
]
Chong, Gabriel
[1
]
Ramiah, Harikrishnan
[1
]
机构:
[1] Univ Malaya, Fac Engn, Dept Elect Engn, Kuala Lumpur 50603, Malaysia
关键词:
Piezoelectric Energy Harvesting (PEH);
Cross-Coupled Active NMOS Rectifier;
DC-DC combiner;
Voltage Conversion Efficiency (VCE);
CMOS;
CIRCUIT;
D O I:
10.1016/j.aeue.2019.152922
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
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 rectifiers 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 R-rec > 9 k Omega and a peak PCE of similar to 84% for R-rec = 12 k Omega. Compared to conventional piezoelectric rectifiers, the PCE of the proposed rectifier is significantly improved with comparative VCE performance. (C) 2019 Elsevier GmbH. All rights reserved.
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页数:7
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