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A 0.2 -\hbox {1.2} V DC/DC Boost Converter for Power Harvesting Applications

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4 Author(s)
Richelli, A. ; Dept. of Electron., Univ. of Brescia, Brescia ; Colalongo, L. ; Tonoli, S. ; Kovacs-Vajna, Z.M.

In this paper, a dc/dc converter is presented that can boost very low voltages to the typical supply voltages of current integrated circuits (1.2 V-1.5 V). The converter is based on a new hybrid inductive and capacitive architecture and it is suitable for power harvesting applications too. The measured prototype can supply 1.2 V by converting an input voltage of 200 mV delivered by a thermopile exposed to a 5degC thermal gradient. A chip was designed and fabricated using a United Microelectronics Corp. (UMC) 180-nm low-threshold CMOS process. Measurements on the chip confirm the validity of the design.

Published in:

Power Electronics, IEEE Transactions on  (Volume:24 ,  Issue: 6 )

Date of Publication:

June 2009

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