Using interfacing converters with a high boost factor and high efficiency is essential for utilizing the solar cells energy since these energy sources produce low voltage levels. Although employing a high-frequency transformer or coupled inductors in such converters results in high gain, these elements increase the weight, volume, and cost and affect the efficiency. This article presents a new topology for DC-DC converter with a high voltage gain to overcome the mentioned problems. The converter provides a higher voltage gain than conventional structures while it includes only one power switch. The switch is connected to the ground; thus, a simple control circuit is required. Besides, the proposed structure has a low output voltage ripple. In this paper, the operating modes of the proposed topology, the influence of parasitic elements on the boost factor, and the efficiency have been described in detail. These item has been examined by experimental verifications. A 500-W laboratory prototype confirms the proposed topology. Results demonstrate that the topology produces high efficiency and voltage gain.

中文翻译：

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一种用于光伏应用的具有高增益的新型升压 DC-DC 转换器

使用具有高升压因数和高效率的接口转换器对于利用太阳能电池能量至关重要，因为这些能源产生低电压电平。尽管在此类转换器中使用高频变压器或耦合电感器可获得高增益，但这些元件会增加重量、体积和成本，并影响效率。本文介绍了一种用于具有高电压增益的 DC-DC 转换器的新拓扑，以克服上述问题。该转换器提供比传统结构更高的电压增益，同时它仅包括一个电源开关。开关接地；因此，需要一个简单的控制电路。此外，所提出的结构具有低输出电压纹波。在本文中，所提出拓扑的工作模式，寄生元件对升压因子和效率的影响已经详细描述。这些项目已经过实验验证。一个 500-W 的实验室原型证实了建议的拓扑结构。结果表明拓扑结构产生高效率和电压增益。