DocumentCode
1250545
Title
Energy scavenging system utilising MEMS switch for power management
Author
Park, Kyung-Joon ; Kang, Sung-Mo ; Kim, Hak S. ; Baek, C.-W. ; Chung, T.K.
Author_Institution
Sch. of Electr. & Electron. Eng., Chung-Ang Univ., Seoul, South Korea
Volume
48
Issue
15
fYear
2012
Firstpage
948
Lastpage
949
Abstract
A novel light energy scavenging system is presented, which employs a MEMS switch as the gate driver of a MOSFET in a power management circuit, for scavenging energy in ultra-low light condition. Measurements show that, in a 5lx illumination condition, the wireless temperature sensor node powered by a palm-size solar cell array can autonomously transmit RF data to a receiver 20 m away every 9 minutes. The experimental results demonstrate the most sensitive energy scavenging system ever reported, and offer great potential for realising practical self-sustaining wireless devices.
Keywords
MOSFET circuits; energy harvesting; microswitches; power system management; solar cells; MEMS switch; MOSFET; gate driver; illumination condition; palm-size solar cell array; power management circuit; scavenging energy; self-sustaining wireless devices; sensitive energy scavenging system; ultra-low light condition; wireless temperature sensor node;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2012.1748
Filename
6248354
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