A battery-free energy harvesting system with the switch capacitor sampler (SCS) technique for high power factor in smart meter applications

Tzu Chi Huang*, Yao Yi Yang, Yu Huei Lee, Ming Jhe Du, Shih Hsien Cheng, Ke-Horng Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

This paper presented a battery-free energy harvesting system with an auto-startup mechanism to achieve AC power monitoring. The proposed switch capacitor sampler (SCS) technique suppresses the total harmonic distortion (THD) since the energy is derived from the AC power lines. It can improve the performance of the power factor correction (PFC) in the harvesting system to achieve high power utilization. As a result, the proposed method can be used as a smart meter for monitoring or controlling the power delivery decision. A battery-free energy harvesting system with the SCS control technique was implemented by using 0.25-μm CMOS process. The die area is 0.25 mm 2. The PF value can be raised to 0.98 with low THD of 17%.

Original languageEnglish
Title of host publication2011 IEEE/IFIP 19th International Conference on VLSI and System-on-Chip, VLSI-SoC 2011
Pages359-362
Number of pages4
DOIs
StatePublished - 22 Dec 2011
Event2011 IEEE/IFIP 19th International Conference on VLSI and System-on-Chip, VLSI-SoC 2011 - Kowloon, Hong Kong
Duration: 3 Oct 20115 Oct 2011

Publication series

Name2011 IEEE/IFIP 19th International Conference on VLSI and System-on-Chip, VLSI-SoC 2011

Conference

Conference2011 IEEE/IFIP 19th International Conference on VLSI and System-on-Chip, VLSI-SoC 2011
CountryHong Kong
CityKowloon
Period3/10/115/10/11

Keywords

  • AC-DC converter
  • Boost converter
  • DC-DC converter
  • Energy Harvesting
  • Power factor correction (PFC)
  • Switch capacitor

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