A direct AC-DC and DC-DC cross-source energy harvesting circuit with analog iterating-based MPPT technique with 72.5% conversion efficiency and 94.6% tracking efficiency

Shin Hao Chen, Tzu Chi Huang, Shao Siang Ng, Kuei Liang Lin, Ming Jhe Du, Yu Chai Kang, Ke-Horng Chen, Chin Long Wey, Ying Hsi Lin, Chao Cheng Lee, Jian Ru Lin, Tsung Yen Tsai

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

The proposed cross-source energy (CSE) harvesting system accepts universal energy sources, including the ac and dc sources. The buck-boost conversion of CSE automatically converts ac or dc input into dc output without being limited by the type of universal energy source. The CSE technique simultaneously supplies the regulated output for the system loading and the battery charging output. A test chip fabricated in the VIS Bipolar, CMOS, and DMOS (BCD) process can optimally derive harvest energy with 72.5% power efficiency when one solar input source is used. A backup converter is designed to complement the CSE technique to guarantee the regulation of output voltage. The proposed analog iterating-based (AIB) maximum power point tracking (MPPT) technique achieves 94.6% tracking efficiency without complex data calculation and storage, which are better results compared with those of previous research.

Original languageEnglish
Article number7296671
Pages (from-to)5885-5899
Number of pages15
JournalIEEE Transactions on Power Electronics
Volume31
Issue number8
DOIs
StatePublished - 1 Aug 2016

Keywords

  • analog iterating-based (AIB) maximum power point tracking (MPPT) technique
  • cross-source energy (CSE) harvesting system
  • universal energy sources

Fingerprint Dive into the research topics of 'A direct AC-DC and DC-DC cross-source energy harvesting circuit with analog iterating-based MPPT technique with 72.5% conversion efficiency and 94.6% tracking efficiency'. Together they form a unique fingerprint.

Cite this