一个三角波:Simulink/Sources/ Repeating Sequence三个正弦波:Simulink/Sources/Sine Wave三个比较模块:Simulink/Commonly Used Blocks/ Relational Operator三个否定:Simulink/Commonly Used Blocks/Logical Operator一个馈线:Simulink/Commonly Used Blocks/Muxpwm模块的设计,参考如下:一个三角波:simulink/sources/ repeating sequence三个正弦波:simulink/sources/sine wave三个比较模块:simulink/commonly used blocks/ relational operator三个否定:simulink/commonly used blocks/logical operator一个馈线:simulink/commonly used blocks/mux