Self-starting power management circuits for piezoelectric and electret-based electrostatic mechanical energy harvesters

被引：30

作者：

Boisseau, S. ^{[1
]}

Gasnier, P. ^{[1
]}

Gallardo, M. ^{[1
]}

Despesse, G. ^{[1
]}

机构：

[1] CEA, Leti, F-38054 Grenoble, France

来源：

13TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS 2013) | 2013年 / 476卷

关键词：

D O I：

10.1088/1742-6596/476/1/012080

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper reports on an innovative power management circuit for piezoelectric and electret-based mechanical energy harvesters able to self-start and to power battery-free Wireless Sensor Nodes (WSN) from scratch without any initial energy. The key elements of this circuit are a depletion-mode MOSFET combined with self-powered Schmitt triggers that enable to switch between (i) a non-optimized passive diode-bridge-capacitor configuration to start the system and (ii) an active power conversion path to maximize the energy extraction from mechanical energy harvesters. A discrete circuit implementing this architecture is presented and its operation is validated on simple piezoelectric and electret-based devices. An ASIC, based on the same architecture, has finally been designed, fabricated and validated.

引用

页数：5

共 8 条

[1]

Boisseau S, 2012, SMALL-SCALE ENERGY HARVESTING, P91, DOI 10.5772/51360

[2] Cantilever-based electret energy harvesters [J].