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A High-Voltage Dual-Input Buck Converter With Bidirectional Inductor Current for Triboelectric Energy-Harvesting Applications
- Issue Date
- Feb-2021
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Buck converter; dc-dc converter; dual input (DI); energy harvesting (EH); high-voltage (HV) sampling; inductor sharing; three-level gate driver (TLGD); triboelectric nanogenerator (TENG)
- Citation
- IEEE JOURNAL OF SOLID-STATE CIRCUITS, v.56, no.2, pp.541 - 553
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE JOURNAL OF SOLID-STATE CIRCUITS
- Volume
- 56
- Number
- 2
- Start Page
- 541
- End Page
- 553
- ISSN
- 0018-9200
- Abstract
- This article presents a high-voltage (HV) dual-input buck converter with a bidirectional inductor current ( IL) and a fully integrated maximum power point tracking circuit for triboelectric (TE) energy-harvesting applications. The proposed converter regulates HV inputs through a single shared inductor, and HV inputs can be isolated without using an additional HV protection circuit. In addition, the proposed diode-based HV sampling circuit can accomplish high ac voltage sampling and peak detection to perform the fractional open-circuit voltage method without any external components. Fabricated using a 180-nm bipolar-CMOS-DMOS (BCD) process, the proposed system with a self-manufactured polytetrafluroethylene (PTFE)based TE nanogenerator can regulate two HV inputs up to 70 V and achieve a power conversion efficiency of 84.7% and an end-to-end efficiency of 75.6%, which are 30.2% and 22.7% better than prior work, respectively.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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