Electronic Devices - Op-Amp Applications - Discussion
Discussion Forum : Op-Amp Applications - General Questions (Q.No. 1)
1.
Calculate the output voltage for this circuit when V1 = 2.5 V and V2 = 2.25 V.
Discussion:
22 comments Page 2 of 3.
Sanjay said:
9 years ago
Asking a normal q here. When amplifier at v1 and v2 have supply voltage +10 &-10v then how v1 and v2 amplified out can use on the third opamp?
Sachin said:
9 years ago
v0 =A * (V2 - V1),
A = 1 + (2 * 5k)/500.
A = 1 + (2 * 5k)/500.
Prachi Tewari said:
9 years ago
@Arnesh Sen answer is correct .
Ram said:
1 decade ago
vo=v1+v2.
Nisha said:
1 decade ago
Why you have considered 2R1 in the formula?
SUJI said:
1 decade ago
The formula for finding output of op-amp is = A(V2-V1).
Masta said:
1 decade ago
What is Rf and R1? I don't get it.
Jinju said:
1 decade ago
Vo = (v2-v1)(1+2R1/Rgain)(R3/R2), R1=R2=R3=5K, Rgain=500,
= (.25)(21)(1).
= 5.25V.
= (.25)(21)(1).
= 5.25V.
Mathi said:
1 decade ago
Output Voltage = (Rf/R1)(1+(2R'/R))(v1-v2).
Mallik said:
1 decade ago
@ Bipin S.
You did a wonderful work but I would like to make slight modification to your formula used. Instead of being (V2-V1) this should have been (V1-V2). Though you have used it correctly in the following step by saying (2.5 - 2.25).
Nothing offensive. Just wanted to keep it clear.
You did a wonderful work but I would like to make slight modification to your formula used. Instead of being (V2-V1) this should have been (V1-V2). Though you have used it correctly in the following step by saying (2.5 - 2.25).
Nothing offensive. Just wanted to keep it clear.
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