A high efficient dual-output rectifier for piezoelectric energy harvesting

被引：13
|
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
来源：
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2019年 / 111卷
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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