- #1
Kerren
- 9
- 0
Hi guys This question has been bugging me for a REALLY long time so thanks in advance for the help !
Calculate the Hybrid Parameters for an inverting op amp shown below:
https://www.dropbox.com/s/45mjldud2ar5pwg/invOpAmp.jpg
And I need to get it into the form of:
https://www.dropbox.com/s/5vto0ipwtbre7qk/hequiv.jpg
[itex]V_1 = aI_1 + bV_2[/itex]
and
[itex]I_2 = cI_1 + dV_2[/itex]
I tried doing it like this:
https://www.dropbox.com/s/9gnpycdi3p6g1ys/p1.jpg
https://www.dropbox.com/s/5u7f3109u1i8zoa/p2.jpg
But I got stuck trying to get [itex]I_2[/itex], [itex]I_1[/itex] and [itex]V_2[/itex] all in the same equation.
So I redrew the equivalent model to see if maybe there was another loop I could use:
https://www.dropbox.com/s/p23mwsbjdmmpbex/p3.jpg
Which lead to the exact same result
So at the moment I'm thinking maybe it isn't possible to get the second equation?
Here the calculations are if they don't load:
Homework Statement
Calculate the Hybrid Parameters for an inverting op amp shown below:
https://www.dropbox.com/s/45mjldud2ar5pwg/invOpAmp.jpg
And I need to get it into the form of:
https://www.dropbox.com/s/5vto0ipwtbre7qk/hequiv.jpg
Homework Equations
[itex]V_1 = aI_1 + bV_2[/itex]
and
[itex]I_2 = cI_1 + dV_2[/itex]
The Attempt at a Solution
I tried doing it like this:
https://www.dropbox.com/s/9gnpycdi3p6g1ys/p1.jpg
https://www.dropbox.com/s/5u7f3109u1i8zoa/p2.jpg
But I got stuck trying to get [itex]I_2[/itex], [itex]I_1[/itex] and [itex]V_2[/itex] all in the same equation.
So I redrew the equivalent model to see if maybe there was another loop I could use:
https://www.dropbox.com/s/p23mwsbjdmmpbex/p3.jpg
Which lead to the exact same result
So at the moment I'm thinking maybe it isn't possible to get the second equation?
Here the calculations are if they don't load: