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分析了开关功率放大器的基本工作原理和工作过程 ,设计了一种基于三电平电路结构的新型开关功率放大器 ,利用正弦波脉宽调制技术 ,突破了传统功率放大器中功率器件工作在线性区的局限 ,克服了普通开关功放失真度较大的缺点。对系统的工作原理、工作过程进行了分析
The basic working principle and work process of the switching power amplifier are analyzed. A novel switching power amplifier based on the three-level circuit is designed. By using the sine wave pulse width modulation technology, the power device in the conventional power amplifier breaks through the linear region Limitations to overcome the shortcomings of a larger general switching amplifier distortion. The working principle and work process of the system are analyzed