A Transformerless Step-up Converter with Lossless Snubber

被引：0

作者：

Faraj, Karrar Saad ^{[1
]}

Delshad, Majid ^{[1
]}

Abdul-Adheem, Wameedh R. ^{[2
]}

Yazdani, Mohammad Rouhollah ^{[1
]}

Fani, Bahador ^{[1
]}

机构：

[1] Islamic Azad Univ, Isfahan Khorasgan Branch, Fac Engn, Esfahan, Iran

[2] Baghdad Univ, Coll Engn, Baghdad, Iraq

来源：

2025 12TH IRANIAN CONFERENCE ON RENEWABLE ENERGIES AND DISTRIBUTED GENERATION, ICREDG | 2025年

关键词：

Step-up converter; lossless snubber; ZCS; ZVS; DC-DC CONVERTER; COUPLED-INDUCTOR;

D O I：

10.1109/ICREDG66184.2025.10966106

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study presents a high voltage gain converter featuring a lossless snubber, designed to achieve high efficiency and reliability. Key attributes of the proposed converter include zero current switching (ZCS) during switch turn-on, zero voltage switching (ZVS) during switch turn-off, minimal use of additional circuit switches, and a low number of snubber elements. The design effectively absorbs leakage inductance energy, eliminates reverse recovery problem in diodes, and ensures increased voltage gain with reduced voltage stress on the switch. Additional advantages include PWM control and low circulating current in the auxiliary circuit, making it a robust and efficient solution for high voltage gain applications. To validate the circuit analysis, a 150W prototype was implemented.

引用

页数：5

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