A Single-Voltage-Source Class-D Boost Multi-Level Inverter with Self-Balanced Capacitors

Jenn-Jong Shieh; Kuo-Ing Hwu; You-Yang Li

doi:10.3390/en15114082

Energies (Jun 2022)

A Single-Voltage-Source Class-D Boost Multi-Level Inverter with Self-Balanced Capacitors

Jenn-Jong Shieh,
Kuo-Ing Hwu,
You-Yang Li

Affiliations

Jenn-Jong Shieh: Department of Electrical Engineering, Feng Chia University, No. 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan
Kuo-Ing Hwu: Department of Electrical Engineering, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608, Taiwan
You-Yang Li: Delta Electronics (Taiwan), No. 16, Dongyuan Rd., Zhongli Dist., Taoyuan City 32063, Taiwan

DOI: https://doi.org/10.3390/en15114082
Journal volume & issue: Vol. 15, no. 11
p. 4082

Abstract

Read online

A symmetric single-source 7-level DC-AC converter with voltage gain of 3 and self-voltage balance is presented by combining the Class-D amplifier and the diode-clamped DC-AC converter. There is only one switch is switched for any time in this circuit. As a result, the conversion efficiency can be upgraded significantly as well as the control strategy can be simplified considerably. In the paper, the operation principle and circuit design of this converter are analyzed in detail, and its feasibility and effectiveness are verified by simulation and digital control, respectively.

Published in Energies

ISSN: 1996-1073 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology
Website: http://www.mdpi.com/journal/energies

About the journal

Abstract

Keywords