DocumentCode
104365
Title
50 mV-Input Batteryless Boost Converter for Thermal Energy Harvesting
Author
Weng, Po-Shuan ; Tang, Hao-Yen ; Ku, P.-C. ; Lu, Liang-Hung
Author_Institution
Department of Electrical Engineering and Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan, R.O.C.
Volume
48
Issue
4
fYear
2013
fDate
Apr-13
Firstpage
1031
Lastpage
1041
Abstract
A fully electrical startup boost converter for thermal energy harvesting is presented in this paper. The converter is implemented in a 65-nm bulk CMOS technology. With the proposed 3-stage stepping-up architecture, the minimum input voltage for startup is as low as 50 mV while the input voltage required for sustained power conversion is 30 mV. Due to the use of a zero-current-switching (ZCS) converter as the last stage and an automatic shutdown mechanism for the auxiliary converter, conversion efficiency up to 73% is achieved. By incorporating the boost converter and a thermoelectric generator (TEG), a miniaturized module is demonstrated for energy harvesting applications.
Keywords
Boost converter; conversion efficiency; energy harvesting; low input voltage; thermoelectric generator;
fLanguage
English
Journal_Title
Solid-State Circuits, IEEE Journal of
Publisher
ieee
ISSN
0018-9200
Type
jour
DOI
10.1109/JSSC.2013.2237998
Filename
6484920
Link To Document