For the circuit in figure(a) Find Vo in terms of V1 and V2.(b) If V1 = 2V and V2 = 6V, find Vo.(c)...

Question

For the circuit in figure(a) Find Vo in terms of V1 and V2.(b) If V1 = 2V and V2 = 6V, find Vo.(c) If the op-amp supplies are ± 12V, and V1 = 4V, what is the allowable range ofV2?

Robert · Accepted Answer

a) Applying KCL at node V 
?2 − ?
2?
=
?
1?
+
(? − ??)
2?
 
An ideal condition V1 = V 
?2 − ?1
2?
=
?1
1?
+
(?1 − ??)
2?
 
?2 − ?1
2?
−
?1
1?
−
?1
2?
= −
(??)
2?
 
−?2 + ?1
2?
+
?1
1?
+
?1
2?
=
(??)
2?
 
?? = 4?1 − ?2
b) V1 = 2V and V2 = 6V 
?? = 4?

For the circuit in figure (a) Find Vo in terms of V1 and V2. (b) If V1 = 2V and V2 = 6V, find Vo. (c) If the op-amp supplies are ± 12V, and V1 = 4V, what is the allowable range ofV2?

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