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Building a current booster circuit Answered

need to understand whats going on in this circuit which is a class project.

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Jack A Lopez

8 weeks ago

To me it looks like a signal amplifier with adjustable gain. That is the function of those relays, labeled {U5, U6, U7, U8, U9, U10, U11}. Turning on different combinations of those relays changes the resistance in the feedback path from the output of op-amp U4, to the inverting input of op-amp U2A.

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Downunder35m

8 weeks ago

I assume it is also the goal for said project to figure it out? ;)