I just started learning, so I would like to ask you, what kind of circuit is this and what is its function?

蓝月帝江

I just started learning, so I would like to ask you, what kind of circuit is this and what is its function? [Copy link]

qwqwqw2088

The picture is not very clear. U2 is LM358, and the dual op amp uses one channel.

蓝月帝江

qwqwqw2088 posted on 2020-8-21 09:53 The picture is not very clear, U2 is LM358, and the dual op amp uses 1 channel

Yes, U2 is LM358, only one circuit is used.

chunyang

The op amp circuit needs to be drawn according to the op amp symbol. It is impossible to read the diagram directly if it is drawn according to the package.