This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Net_PTB2是MCU的一个端口。一头雾水，按电容隔直通交的特点，并联的电阻有什么用呢？
R26是U2A的增益，R28、R29是U2B的增益。C26、C27是两个运放的补偿。
