01:25 - Intro and Review 03:40 - Frequency Response of Followers 10:26 - Finding the Transfer Function of Followers 19:38 - Conclusions from the Transfer Function 21:40 - Input Capacitance of Followers 30:25 - Intuitive Explanation of Input Capacitance Lowering with Bootstrap Amplifier 39:15 - Output Impedance of Followers
01:29 Frequency response of emitter and source followers 04:20 Emitter/Source followers act as buffers to prevent significant gain drop due to lower impedance loads. 10:06 Analyzing the transfer function of the source follower circuit. 13:30 Analyzing current through RG and capacitance at gate node 20:01 In analyzing followers, numerical values are required to determine poles due to lack of flexibility 22:36 Finding input capacitance using Miller multiplication and input pole of a circuit. 28:24 Input capacitance of source follower lower than CGS 31:31 Voltage change in amplifier with gain of 1 does not deliver charge to capacitor. 38:15 The input capacitance of the source follower is affected by the gain. 40:57 Using a resistor in certain cases for impedance matching 46:56 Introduction to emitter/source followers Crafted by Merlin AI.
For Vout/Vin I have got the following: Vout/Vin = N / D N = (Cgs/gm)*s + 1 D = (Csb Cgd + Csb Cgs + Cgd Cgs) * (Rg/gm) * s^2 + ((Csb/gm) - (Cgs/gm) + Cgd Rg) * s + 1
01:25 - Intro and Review
03:40 - Frequency Response of Followers
10:26 - Finding the Transfer Function of Followers
19:38 - Conclusions from the Transfer Function
21:40 - Input Capacitance of Followers
30:25 - Intuitive Explanation of Input Capacitance Lowering with Bootstrap Amplifier
39:15 - Output Impedance of Followers
Sir I am very happy that u brought out 2nd series of this course while I am studing the first one
Output Impedance: (Vx/Ix) = (1+sCgs*Rg)/(gm+sCgs)
01:29 Frequency response of emitter and source followers
04:20 Emitter/Source followers act as buffers to prevent significant gain drop due to lower impedance loads.
10:06 Analyzing the transfer function of the source follower circuit.
13:30 Analyzing current through RG and capacitance at gate node
20:01 In analyzing followers, numerical values are required to determine poles due to lack of flexibility
22:36 Finding input capacitance using Miller multiplication and input pole of a circuit.
28:24 Input capacitance of source follower lower than CGS
31:31 Voltage change in amplifier with gain of 1 does not deliver charge to capacitor.
38:15 The input capacitance of the source follower is affected by the gain.
40:57 Using a resistor in certain cases for impedance matching
46:56 Introduction to emitter/source followers
Crafted by Merlin AI.
For Vout/Vin I have got the following:
Vout/Vin = N / D
N = (Cgs/gm)*s + 1
D = (Csb Cgd + Csb Cgs + Cgd Cgs) * (Rg/gm) * s^2 + ((Csb/gm) - (Cgs/gm) + Cgd Rg) * s + 1
I also got the same but in the expression for D, the "-" sign in "(Csb/gm) - (Cgs/gm)" should actually be a "+" sign
How Can We Remember This? Please Arrange The Terms In Such A That It Becomes Easy To Remember
Thank you i geted a+grade
Waiting eagerly for circuit theory I & II and the rest of the series.
@45:12 why is the current through RG same as the current through the capacitor Cgs?
Apply kcl at that node then
current through rg+current through Cgs=0
now I(rg) = -I(Cgs)
As current cant flow through gate, so it has nowhere else to go.
because it's the same wire
ممنون عالی بود
Is the output impedance at 47:00 is right?
in the numerator instead of gm it should be Cgs
he corrects it in the next lect
I am also worried about this, how does gm come in the numerator?
아 시발 이 명장을 이제 봤네
30:30