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 3 of 3.
Sugin V said:
8 years ago
Here, V2/2 (1+Rf/Rs) + V1 (-Rf/Rs).
Rakesh said:
8 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.
ALI said:
8 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)
David khasu said:
7 years ago
Here, we can use {Rf÷R1}*(v1-v2).
Avi said:
6 years ago
[R3/(R1+R3][(R2+R4)/R2][V1]-[V2 (R4/R2)] is the formula. So it is 0V.
(1)
Shrestha said:
6 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)
Praveen said:
6 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)
Vaibhav said:
6 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)
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