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COMPARISON OF Si-IGBT AND SiC-MOSFET FOR ON-OFF AND VARIABLE ON CONTROLLED ZVS CLASS-E RESONANT INVERTER
Abstract
The variation of switch stresses in ZVS class-E resonant inverters, depending on different control techniques, input voltage, and output power, limits the use of the Si MOSFET as a power switch due to its limited current-carrying capacity against breakdown voltage. Si IGBT and SiC MOSFET are used instead of Si MOSFET to counter this limitation. In this study, the operations of on-off and variable on-controlled ZVS class-E resonant inverters are examined. Si IGBT and SiC MOSFETs are used as power switches in the inverter controlled by two different control techniques. An experimental setup consisting of an input power of 372W inverter, and a control circuit is established to verify the theoretical studies. The on-off and variable on-controlled class-E resonant inverters, operating at a basic frequency of 24kHz, are tested separately using two different power switches. In the inverter where Si IGBT and SiC MOSFET are used separately, the maximum output power is 200.77W and 191.83W, respectively, while the efficiency is 53.93% and 54.57%, respectively. In the on-off controlled inverter, the efficiency is 22.15% for a minimum output power of 27.48W, whereas, in the variable on-time controlled inverter, the efficiency is 65.25% for a minimum output power of 11.69W. As a result, it is observed that the inverter efficiency decreases significantly with decreasing output power in the on-off controlled inverter, compared to the variable on-controlled inverter. Additionally, it is observed that the performance of the power switches, Si IGBT and SiC MOSFET, in terms of inverter efficiency is very close to each other in the inverter controlled separately by both control techniques.
Keywords
Supporting Institution
Bandırma Onyedi Eylül Üniversitesi
Project Number
BAP-21-1003-011
Thanks
Bu çalışma Bandırma Onyedi Eylül Üniversitesi (BANÜ) Bilimsel Araştırma Projeleri Birimi tarafından desteklenmiştir (Proje Numarası: BAP-21-1003-011). Değerli destekleri için BANÜ’ye teşekkür ederim.
References
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Details
Primary Language
Turkish
Subjects
Circuits and Systems
Journal Section
Research Article
Authors
Salih Nacar
*
0000-0003-4843-9648
Türkiye
Publication Date
June 3, 2025
Submission Date
July 29, 2024
Acceptance Date
March 28, 2025
Published in Issue
Year 1970 Volume: 28 Number: 2