- #1

- 49

- 0

Member warned to use homework template

In the following circuit, compute the values of R

I have marked 3 nodes, A, B and C. v

Consider node A.

v

Consider node B and C.

(v

I now stick at here...

I can write R

And for R3, the same problem exists.

First, is there anything wrong in my above computations?

Second, can I express R

_{1}and R_{3}in terms of R_{2}and R_{4}, such that v_{o}is always equal to v_{1}- 5v_{2}.I have marked 3 nodes, A, B and C. v

_{+}= v_{-}as assumption for the op-amp.Consider node A.

v

_{-}= v_{+}= v_{1}× (R_{2}/ (R_{1}+R_{2}))Consider node B and C.

(v

_{-}- v_{2}) / R3 = (v_{o}- v_{-}) / R4I now stick at here...

I can write R

_{1}in terms of R_{2}, but there exist v_{-}and v_{1}.And for R3, the same problem exists.

First, is there anything wrong in my above computations?

Second, can I express R

_{1}and R_{3}in terms of R_{2}and R_{4}without using other unknowns?