Electronic Devices - Op-Amp Applications - Discussion
Discussion Forum : Op-Amp Applications - General Questions (Q.No. 4)
4.
Determine the output voltage when V1 = –V2 = 1 V.
Discussion:
28 comments Page 2 of 3.
Dhanabal said:
1 decade ago
/* The above example -v(inverting terminal) get more voltage than +v(non inverting) terminal*/
Vout = (v1-v2) * (-(rf/r1)).
= (1-(-1))*(-(100/100)).
= -2*1.
= -2.
Vout = (v1-v2) * (-(rf/r1)).
= (1-(-1))*(-(100/100)).
= -2*1.
= -2.
Neetu khadaria said:
1 decade ago
Since its a circuit of subtractor whose o/p voltage is = v1-v2= -2*v2 = -2*1 = -2.
Youmna said:
1 decade ago
R1 = 100K.
R2 = 100K.
Vo = R2/R1(V2-V1).
Vo = 100K/100K(-1-1).
Vo = 1(-2).
Vo = -2 Answer.
R2 = 100K.
Vo = R2/R1(V2-V1).
Vo = 100K/100K(-1-1).
Vo = 1(-2).
Vo = -2 Answer.
Atul Raghav said:
1 decade ago
Vo = (-100k/100k)*1+(1+100k/100k)*{(-1)*(20k/(20k+20k))}.
= -1*1+2*(-1)/2.
= -1-1.
= -2 Answer.
= -1*1+2*(-1)/2.
= -1-1.
= -2 Answer.
PUNAM said:
1 decade ago
Vo = -(Rf/R1)(V1-V2).
MISS said:
1 decade ago
Vo = -Rf/R1*V1-V2.
= -100/100*1-(-1) V.
= -2 V.
= -100/100*1-(-1) V.
= -2 V.
Bayan said:
10 years ago
Why v2 negative?
Kiran Borude said:
10 years ago
Opamp have one positive terminal & one negative terminal. That's why it is called one terminal is inverting & 2nd is non inverting.
Shawn said:
10 years ago
I think the answer should be 0 V.
Because the is not powered. So no amplification.
Because the is not powered. So no amplification.
Surya said:
9 years ago
It is diff amplifier Vo = (v2-v1) = (-1-1) =-2.
(3)
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