基于DDS的可控正弦脉冲功率发生器的设计

摘要

设计一个小功率正弦波脉冲可调信号发生器。STC89C52RC单片机控制DDS芯片产生正弦信号,且对正弦信号变换后的脉冲信号进行计数,通过传输门控制正弦信号通过,将斩波后正弦信号进行甲乙类互补功率放大,波形变换。实验表明该脉冲功率发生器易于实现,可应用于小功率脉冲信号场合。%A low power sine wave pulse adjustable signal generator was designed in this paper.The STC89C52RC MCU controls the DDS chip generate sine signal,and counts the pulse signal after sine signal transforming.The transmission gate controls sine signal pass.Sine signal through the AB class complementary power amplifier after chopper and change sine wave into pulse wave.Experiment results show that the pulse power generator is easy to realize,and can be used for small power pulse situation.