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A Quadratic High Step-Up Converter with Zero-Current Switching
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Rasol Sareban   , Mohmmadreza Amini * , Majid Delshad , Mohammad Rouhollah Yazdani |
| Department of Electrical Engineering, Isfahan (Khrasgan) Branch, Islamic Azad University, Isfahan, Iran |
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Abstract: (67 Views) |
In this study, a novel high step-up converter without utilizing a coupled inductor at the input is presented. The converter incorporates two coupled inductors: one to enhance the voltage gain and the other to facilitate zero-current switching (ZCS) and transfer snubber energy. A lossless snubber is employed to achieve soft-switching conditions. All diodes in the circuit operate under ZCS, effectively eliminating the issue of reverse recovery. The converter features a continuous input current and reduced conduction losses due to low voltage stress on the switches. The proposed converter has been comprehensively analyzed, and a 60 W prototype was simulated in PSPICE and subsequently implemented to validate the circuit analysis. The converter achieves an efficiency of 96% under full-load conditions, representing a 6% improvement compared to a hard-switching boost converter.
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| Keywords: High Step-Up Converter, Continuous Input Current, Coupled Inductor, Zero-Current Switching (ZCS) |
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Full-Text [PDF 734 kb]
(35 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2024/06/26 | Accepted: 2024/10/1 | Published: 2024/11/30
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