A battery-free 225 nW buck converter for wireless RF energy harvesting with dynamic on/off time and adaptive phase lead control

Chun Yu Hsieh*, Yu Huei Lee, Yao Yi Yang, Tzu Chi Huang, Ke-Horng Chen, Chen Chih Huang, Ying Hsi Lin

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

A battery-free 225 nW buck converter is implemented by using 0.25-μm CMOS process with die area of 0.21 mm2. The dynamic on/off time (DOOT) technique can predict the on/off time at different input voltage, as well as suppress static power in the idle period. In addition, the adaptive phase lead mechanism can improve the initial delay from the comparator and improve load regulation by 60 mV.

Original languageEnglish
Title of host publication2011 Symposium on VLSI Circuits, VLSIC 2011 - Digest of Technical Papers
Pages242-243
Number of pages2
StatePublished - 16 Sep 2011
Event2011 Symposium on VLSI Circuits, VLSIC 2011 - Kyoto, Japan
Duration: 15 Jun 201117 Jun 2011

Publication series

NameIEEE Symposium on VLSI Circuits, Digest of Technical Papers

Conference

Conference2011 Symposium on VLSI Circuits, VLSIC 2011
CountryJapan
CityKyoto
Period15/06/1117/06/11

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  • Cite this

    Hsieh, C. Y., Lee, Y. H., Yang, Y. Y., Huang, T. C., Chen, K-H., Huang, C. C., & Lin, Y. H. (2011). A battery-free 225 nW buck converter for wireless RF energy harvesting with dynamic on/off time and adaptive phase lead control. In 2011 Symposium on VLSI Circuits, VLSIC 2011 - Digest of Technical Papers (pp. 242-243). [5986056] (IEEE Symposium on VLSI Circuits, Digest of Technical Papers).