Hello Sir, The 2nd RC ckt you gave in which the initial conditions of capacitors were +1V and -1V. At t=0+ the Vo will be 1.5V and can be calculated using Qi=Qf on the capacitors and then Vo(t) = -u(-t) + (5 - 3.5*exp(-t/2RC))*u(t) and Vc1(t) = u(-t) + 3.5*exp(-t/2RC)*u(t). I also confirmed it on simulation.
Thanks Sir 👍 Very interesting circuit 😊 Guess [(v+-v-)*A-vout]*1/Rout=voutsCL....T.F(1) with no feedback (diff pair with active current mirror) Rout=ro2//ro4 A=vo/vd=gm*Rout Vin=v+-v- 🤔 The version is so merciful to Man! Case1 DC gain=5,db=20(1-log2) almost 13db Case 2 Cap have a initial value and my vc1 discharge and vc2 - 1to 2.5 and then exponential increase charge close to 5v waveform is the same as You Very interesting circuit 😁
22:25 Why is the capacitor impedance exponentially decreasing in frequency domain? Shouldn't it be 1/s? And due to the presence of resistor, the response is 1/(1+sRC).
Both of you solved the second question incorrectly. You guys didn't take the effect of initial condition on the capacitors into consideration. [ Vc1(0+) = 3.5V and Vc2(0+) = 1.5V ---> Assuming equal capacitances.] There should be an errata video of this instead of just letting it go, if you really want people to learn as you said in your video and not make silly mistakes like you did.
This is the magic of this questions...not considering the initial condition at the moment of your interview ... interviewer can check/test your skill oh his/her own style...☺️
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Hello Sir,
The 2nd RC ckt you gave in which the initial conditions of capacitors were +1V and -1V. At t=0+ the Vo will be 1.5V and can be calculated using Qi=Qf on the capacitors and then Vo(t) = -u(-t) + (5 - 3.5*exp(-t/2RC))*u(t) and Vc1(t) = u(-t) + 3.5*exp(-t/2RC)*u(t). I also confirmed it on simulation.
Yes,,,charge conservation is always valid
Good video!
Thanks vaiya !
How the pole is at zero frequency can you explain ?For last question.
ruclips.net/video/o0kaBseKBSw/видео.html
for finite way to slove your Q 👍
A infinite, 1/Req*Ceq=1/R*C
Thanks Sir 👍
Very interesting circuit 😊
Guess
[(v+-v-)*A-vout]*1/Rout=voutsCL....T.F(1) with no feedback (diff pair with active current mirror)
Rout=ro2//ro4
A=vo/vd=gm*Rout
Vin=v+-v-
🤔
The version is so merciful to Man!
Case1 DC gain=5,db=20(1-log2) almost 13db
Case 2 Cap have a initial value and my vc1 discharge and vc2 - 1to 2.5 and then exponential increase charge close to 5v waveform is the same as You
Very interesting circuit 😁
22:25 Why is the capacitor impedance exponentially decreasing in frequency domain? Shouldn't it be 1/s? And due to the presence of resistor, the response is 1/(1+sRC).
Yes Bhaiya
Yes 👍
Both of you solved the second question incorrectly. You guys didn't take the effect of initial condition on the capacitors into consideration. [ Vc1(0+) = 3.5V and Vc2(0+) = 1.5V ---> Assuming equal capacitances.] There should be an errata video of this instead of just letting it go, if you really want people to learn as you said in your video and not make silly mistakes like you did.
This is the magic of this questions...not considering the initial condition at the moment of your interview ... interviewer can check/test your skill oh his/her own style...☺️