After calculating Ai, AvNL use two port systems approach to calculate Ais, AvNL( sir will discuss how to calculate Ais, AvNL in topic of two port systems approach, don't worry) My suggestion to all is see this video again after watching two port systems approach to handle the circuits containing Rs, RL
Bhai thanks a lot for lecturing all d ckts😍😘🙏🙏🙏🙏🙏🙏🙏 Am going to engineering simply waste of tym for d sake of attendence✊ really u r helping me a lot🤝tq sir
watch the re fixed bias video, for the condition ro =>10Rc, we write ro in denominator in terms of( ro +Rc), then simply it cancels with the numerators r0 and we get Zo=Rc
because in AC, capacitor becomes a short circuit at low frequencies, and therefore current bypasses the resistor. This is also why the capacitor is called "bypass" one
You are an unbeatable teacher bro...never had a better class
After calculating Ai, AvNL use two port systems approach to calculate Ais, AvNL( sir will discuss how to calculate Ais, AvNL in topic of two port systems approach, don't worry)
My suggestion to all is see this video again after watching two port systems approach to handle the circuits containing Rs, RL
thank God.. you started Analog again :) :)
overall voltage gain is Avs= Av(zi/Rs+zi)
Bhai thanks a lot for lecturing all d ckts😍😘🙏🙏🙏🙏🙏🙏🙏
Am going to engineering simply waste of tym for d sake of attendence✊ really u r helping me a lot🤝tq sir
Nice explanation 👍🏼
sir plzz upload the rc coupled transistor amplifier.....
i find all.ur videos helpful for me
sayanwita saha I can help u with that.
What are the answers from?
Derivation of current gain (Ai).
Derivation of overall voltage gain (Avs).
Derivation of overall current gain (Ais).
I got the answers:
Ai = Beta(Rc/(Rc+RL))
Avs = Av(Zi/(Zi+Rs))
Ais = Ai(Rs/(Rs+Zi))
@@beep0666 Can Ai be simplified to Ai = Beta? I got that answer assuming RB1 || RB2 >> Beta re, and RL >> RC
Thank you so much sir!
what if there is no capacitors at RE ? so the zi will include RE right? I must add beta for RE right same like small re
Thank you sir. It much helpful
if Rc>=10ro then in that case r0 should be neglected coz it is much less than Rc quantity and it cant bring chnages in Rc.
it is ro=>10Rc
sir please let me know still how many topics are left to cover BJT entire syllabus
What if ro =♾ ,how do you calculate Zo,Av and Ai?
I think Zo=rc
while calculating Ai--> what is the value of RL
How to solve it when beta is not given?
Thank u sir❤🔥🔥🔥🤟🤟🤟
Do we have to assume any case in which R1|| R2 is much greater than (beta+1) re or something cause in that case the answer will be different
6:35 if u will neglect ro , then how Zo could be equal to Rc it should be Zo=ro in your case?
watch the re fixed bias video, for the condition ro =>10Rc, we write ro in denominator in terms of( ro +Rc), then simply it cancels with the numerators r0 and we get Zo=Rc
is there a video on the re Emitter bias configuration?
Alii Reb yes...
Sir could you make a video of input impedance, output impedance and voltage gain of the same with EFFECT OF Ro.
sir you applied current divider rule to find io.. i think the formula is wrong.. is this not a formula of vdr??
Sir I got Ai=beta.but I don't know how to calculate average voltage gain and average current gain
How to solve it if RL have value?
dont we calculate voltage gain by removing load resistance....otherwise voltage gain of an amplifier will be a functiion of RL
sir why we short circuit Re source in voltage divider bias??
because in AC, capacitor becomes a short circuit at low frequencies, and therefore current bypasses the resistor. This is also why the capacitor is called "bypass" one
Sir please upload mosfet
Thank u sir
how to find the voltage gain, if the input impedance, ro, Rl, and beta are known. while the collector resistance is unknown?
please send the actual question with the circuit if possible
sir Ai =Beta *Rc/RL...??? please tell me answer
Wrong
Ai=Beta(r not/r not+RL)
Why Rl = infinite?
Can u explain how u got ac equivalent ckt?
what is ro? need help
Output resistance
in previuos problem
why r u so late
Pls tell
sound quality is very very bad
Bro i didn't understand about voltage gain Pls send Reexplanation video in my account
Thank you so much sir!