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DCP0205D如何和经过光耦出来的PWM波形连接，才能起到放大PWM波形的作用？
我的电路图如下所示，
存在的问题是当光耦的输出不和DCP连接时，PWM波形幅值为5V且有一定占空比。但当连接起来后，PWM波形的幅值降低，达不到5V，与此同时芯片也不能工作，没有输出。
请问该如何去连接才能将PWM波形放大？
谢谢您的慷慨解答！
