This paper focuses on the design and practical implementation of the effective and improved switching modulation and filter circuits for a three-phase five-level diode-clamped inverter. The proposed switching modulation circuits illustrate the three-phase control signals, carrier signals, and signals for drive circuits. The paper presents also an efficient control and drive circuits, which are used to operate the power switches (power MOSFETs). An improved analog dead-band circuit is practically analyzed and implemented to minimize the overlapping periods of any two complement power switches and consequently reduce the noise/spikes caused by those overlapping periods. The proposed improved switching modulation circuit is verified by simulation results along with their analogous experimental results for the switching modulation, control circuits, and power circuits.

中文翻译：

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三相五电平二极管钳位逆变器改进相位PWM的实验验证

本文重点介绍用于三相五电平二极管钳位逆变器的有效和改进的开关调制和滤波电路的设计和实际实现。所提出的开关调制电路示出了三相控制信号，载波信号和用于驱动电路的信号。本文还介绍了一种有效的控制和驱动电路，用于操作功率开关（功率 MOSFET）。实际分析并实施了改进的模拟死区电路，以最大限度地减少任何两个互补电源开关的重叠周期，从而减少由这些重叠周期引起的噪声/尖峰。所提出的改进开关调制电路通过仿真结果以及开关调制、控制电路、