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 1 of 3.
Vaibhav said:
5 years ago
Simple and easy the circuit shown acts as a difference amplifier and output voltage is given by vo =( v2-v1)x(Rf/R1).
(5)
Praveen said:
5 years ago
Vo = (-RF/R1)V1 + (1+(RF/R1))V2'.
= -1 + (1+1)(20*V1/40),
= -2.
= -1 + (1+1)(20*V1/40),
= -2.
(4)
Shrestha said:
5 years ago
According to the differential amplifier fromula:
Vout = (R2/R1)*(V2-V1).
= (20/20)*(-1-1).
= 1*-2 = -2.
Vout = (R2/R1)*(V2-V1).
= (20/20)*(-1-1).
= 1*-2 = -2.
(2)
Avi said:
6 years ago
[R3/(R1+R3][(R2+R4)/R2][V1]-[V2 (R4/R2)] is the formula. So it is 0V.
David khasu said:
6 years ago
Here, we can use {Rf÷R1}*(v1-v2).
ALI said:
7 years ago
(20/20+20)(100+100/100)*V1-(100/100)V2 = V1-V2.
The resulting output voltage is seen to be the difference of the two input voltage.
The resulting output voltage is seen to be the difference of the two input voltage.
(1)
Rakesh said:
7 years ago
Vo=(-100/100)V1+(20/(20+20))((100+100)/100)V2.
Vo=-V1+(1/2)(2)V2.
Vo=-V1+V2,
Vo=-1+(-1) because -V2=1 => V2=-1,
Vo=-2 Volts.
Vo=-V1+(1/2)(2)V2.
Vo=-V1+V2,
Vo=-1+(-1) because -V2=1 => V2=-1,
Vo=-2 Volts.
Sugin V said:
7 years ago
Here, V2/2 (1+Rf/Rs) + V1 (-Rf/Rs).
Surya said:
8 years ago
It is diff amplifier Vo = (v2-v1) = (-1-1) =-2.
(3)
Shawn said:
9 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.
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