DocumentCode :
1963473
Title :
An autonomous piezoelectric energy harvesting IC based on a synchronous multi-shots technique
Author :
Gasnier, Pierre ; Willemin, Jerome ; Boisseau, S. ; Despesse, G. ; Condemine, Cyril ; Gouvernet, Guillaume ; Chaillout, Jean-Jacques
Author_Institution :
GEONAUTE Res., Villeneuve d´Ascq, France
fYear :
2013
fDate :
16-20 Sept. 2013
Firstpage :
399
Lastpage :
402
Abstract :
This paper presents a fully autonomous integrated circuit (IC) dedicated to piezoelectric harvesters. The IC implements a novel Synchronous Electric Charge Extraction (SECE) technique which optimizes the energy transfer from a highly charged piezoelectric harvester to a low voltage storage element. The system deals with piezoelectric powers in the range of 10 μW to 1mW and handles very high piezoelectric voltage values (>100V) limited by the off-chip components around the IC. The IC has been fabricated in AMS 0.35 μ m3.3V technology and its low power consumption (1 μW @ 5Hz) is particularly suitable for low frequency harvesters. The Multi-Shots SECE (MS-SECE) technique implemented in the IC increases the efficiency by up to 25% compared to a standard SECE technique and allows the use of small off-chip components. An efficiency of 61% has been reached with a 125mm3coupled inductor @ 40V. Moreover, the complete system self-starts and works without any battery.
Keywords :
energy harvesting; integrated circuits; piezoelectric transducers; MS-SECE; SECE technique; autonomous piezoelectric energy harvesting IC; energy transfer; integrated circuit; low frequency harvesters; low power consumption; multishots SECE; off-chip components; piezoelectric harvesters; synchronous electric charge extraction; Capacitors; Discharges (electric); Inductors; Integrated circuits; Low voltage; Switches; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
ESSCIRC (ESSCIRC), 2013 Proceedings of the
Conference_Location :
Bucharest
ISSN :
1930-8833
Print_ISBN :
978-1-4799-0643-7
Type :
conf
DOI :
10.1109/ESSCIRC.2013.6649157
Filename :
6649157
Link To Document :
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