ABSTRACT This paper proposes a non-isolated transformerless high step-up dc–dc converter. The presented converter voltage gain is higher that of the conventional boost, buck boost, CUK, SEPIC and ZETA converters. In addition, in this converter, only one power switch is utilized. The voltage stress across the power switch is low. Hence, the low on-state resistance of the power switch can be selected to decrease switching loss of the switch and improve efficiency. The principle of operation and the mathematical analyses of the proposed converter are explained. The validity of the presented converter is verified by the experimental results.

中文翻译：

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具有电压倍增器的无变压器高升压转换比dc-dc转换器

摘要 本文提出了一种非隔离式无变压器高升压 dc-dc 转换器。所呈现的转换器电压增益高于传统升压、降压升压、CUK、SEPIC 和 ZETA 转换器的电压增益。此外，在该转换器中，仅使用了一个电源开关。电源开关两端的电压应力很低。因此，可以选择功率开关的低导通电阻，以减少开关的开关损耗，提高效率。解释了所提出的转换器的工作原理和数学分析。实验结果验证了所提出转换器的有效性。