Signals in circuit

[David Andre]

Hi everyone,

Please I need help with a circuit I am working with. I would please like to know what various signals I get at every point in the circuit as I can not figure it out. I have included a copy of the circuit. Thank you in advance for your help!

 

[AnalogKid]

What do you think the circuit is supposed to do?

Is this homework?

ak

 

[David Andre]

It senses the current and we can measure it from the sense resistor as shown in the diagram.

And no, its not a homework, its a project that myself and my team are working on in school but just don't understand the signals going through each part of the circuit

 

[Audioguru]

You need to lean about simple opamp circuits.

 

[hevans1944]

And no, its not a homework, its a project that myself and my team are working on in school...

YES, IT IS HOMEWORK! By your own admission in the above quotation, it fits our definition of "homework" exactly.

The screen shot you posted is taken directly from Analog Devices Application Note AN-968 "Current Sources: Options and Circuits. I suggest that you read and understand the entire application note before your "team" proceeds. You will need to understand, as @Audioguru suggested in post #4, simple operational amplifier circuits to comprehend the concepts discussed in the application note.

After cogitating on this for awhile, come back here and try to explain what you think is going on. Someone here will critique your understanding, but we will not do your homework for you.

 

[davenn]

Moved to homework section

As Hop said ......

After cogitating on this for awhile, come back here and try to explain what you think is going on. Someone here will critique your understanding, but we will not do your homework for you.