Analysis and design of switched capacitor-based Quasi-Z-Source DC-DC converter with improved operation factors

In this study, a high-gain Quasi-Z-Source (QZS) DC-DC converter with continuous input current is investigated. In order to increase the voltage level from lower to higher, a switched capacitor (SC) branch is added to QZS. This converter has absolute common ground, high gain, continuous input current...

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Bibliographic Details
Published inInternational journal of electronics Vol. 111; no. 10; pp. 1780 - 1799
Main Authors Shahabadi, Gholam Reza, Naseh, Majid Reza, Es'haghi, Siavash
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 02.10.2024
Taylor & Francis LLC
Subjects
Capacitors
Current stress
DC-DC converter
Design analysis
Electric potential
Electrical grounding
High gain
Inductors
Low currents
Quasi-Z-source converter
switched-capacitor
Voltage
Voltage converters (DC to DC)
voltage stress
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Summary:In this study, a high-gain Quasi-Z-Source (QZS) DC-DC converter with continuous input current is investigated. In order to increase the voltage level from lower to higher, a switched capacitor (SC) branch is added to QZS. This converter has absolute common ground, high gain, continuous input current, and low current stresses across the inductors and power switch. In this article, the principles of the converter's operation have been reviewed, and then the voltage and current stress on the elements have been calculated. In addition, in order to analyse the efficiency of the proposed converter, it has been compared with other converters in detail. Furthermore, the parameters design of the main components is presented. The proposed converter is simulated in MATLAB, and the results validate the functionality of theoretical predictions.
ISSN:0020-7217
1362-3060
DOI:10.1080/00207217.2023.2241720