Today, multilevel inverters are widely utilized in various applications. Reducing the number of components in the design of these converters is one of the crucial goals so that they have less volume and cost. This paper presents a single-source structure for a multilevel switched-capacitor inverter with voltage boost capability. The proposed structure can generate 25 sinusoidal-like step voltage levels with a six times amplitude increase compared to the input. This converter uses only one direct current (DC) power source, 14 switches, and four capacitors. The nearest level control switching method has been used to control the converter, create voltage levels, and select the switching modes. A comprehensive comparison has been made with other recently presented structures to demonstrate the efficiency of the proposed structure. The advantages of the proposed structure include using only one DC voltage source, the ability to increase the output voltage six times compared to the input, the use of fewer power electronics components compared to the number of voltage levels, proper efficiency, self-balancing of capacitors, and as a result, the lower cost. The performance accuracy of the proposed converter has been simulated in the MATLAB Simulink environment and then evaluated by a laboratory prototype.

中文翻译：

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一种基于单源开关电容器的低开关数 25 级六级升压逆变器

如今，多电平逆变器广泛应用于各种应用中。减少这些转换器设计中的元件数量是关键目标之一，以减少体积和成本。本文提出了一种具有升压能力的多电平开关电容逆变器的单源结构。所提出的结构可以生成 25 个类正弦阶跃电压电平，与输入相比，幅度增加了六倍。该转换器仅使用 1 个直流 (DC) 电源、14 个开关和 4 个电容器。最近电平控制开关方法已用于控制转换器、创建电压电平以及选择开关模式。与其他最近提出的结构进行了全面比较，以证明所提出结构的效率。所提出的结构的优点包括仅使用一个直流电压源、能够将输出电压比输入增加六倍、与电压等级的数量相比使用更少的电力电子元件、适当的效率、自平衡电容器，因此成本较低。所提出转换器的性能精度已在 MATLAB Simulink 环境中进行了仿真，然后通过实验室原型进行了评估。