Blackman's impedance formula (Open loop gain)

AI Thread Summary
The discussion revolves around using Blackman's impedance formula to determine input resistance and open loop gain in a circuit. The user has the necessary resistor values and transistor data but is struggling to understand the teacher's example for calculating open loop gain. Clarification is sought on the specific steps taken to derive the open loop gain. It is noted that the circuit in question functions as a current divider. Understanding these concepts is crucial for accurately applying Blackman's impedance formula in practical scenarios.
Electro_vass
Messages
5
Reaction score
0

Homework Statement


Determine the input resistance using blackmans impedance formula.
I know all the ressisor values, and transistor data.

Homework Equations


[/B]
Blackmans impedance formula

The Attempt at a Solution



Our teacher has given us a example on how to find the open loop gain, but I don't understand what he has done. Do anyone know how he has found the open loop gain?
Bilde uten tittel.png
Bilde uten tittel.png
 
Physics news on Phys.org
Electro_vass said:
Do anyone know how he has found the open loop gain?
What is it, specifically, you're not sure about?

Note that the circuit shown is just a current divider.
 

Similar threads

Engineering Analyzing the output impedance and open loop gain of a IC-741 Op-Amp
Replies
2
Views
3K
Engineering Calculate impedance of a feedback circuit with Blackman's technique
Replies
38
Views
9K
What is the effect of feedback on input and output impedances?
Replies
4
Views
2K
Discrete Differential Amplifier
Replies
6
Views
2K
Engineering How can I find the open loop voltage gain of this opamp?
Replies
9
Views
2K
Predicting AC open-loop gain for an internally compensated op-amp
Replies
5
Views
2K
PLL - How to find all the gains of a PI corrector and fix Ki ? MATLAB
Replies
2
Views
736
Engineering Diff gain of a push pull degenerated differential pair
Replies
6
Views
1K
Output Impedance of an Inverting Op Amp
Replies
10
Views
5K
Understanding Total Gain and Phase Angle in Closed Loop Control Systems
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top