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TMS320F28034: 目前在用此芯片做单相逆变器,问题如下

Part Number: TMS320F28034
Other Parts Discussed in Thread: C2000WARE, UC3842

1.逆变的时候用的TI的74HC595芯片,两片级联,发现74HC595很容易受干扰,示波器观察,发现逆变发波的时候有干扰波形经过28034和595的3.3V电源,请问这种干扰怎么消除或者降低影响?

2.C2000做数字电源的库哪里可以下载?有没有专门做推挽电源的例子?

3.28034的PWM做数字电源,请问有没有专门的库使用?数字电源的输出偏高或者偏低的时候,28034的PWM是立即改变CMPA或者CMPB的值还是周期性改变?或者一个周期可以改变数字PWM的值?

谢谢!