Thevenin Equivalent in AC circuit

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SUMMARY

The discussion focuses on calculating the Thevenin equivalent circuit in AC for a specific circuit configuration. Joaquim, an Electronic Engineering student, seeks confirmation on his calculations involving inductor reactance (Xl) and capacitor reactance (Xc). He correctly applies the formulas Xl = 2 * Pi * F * L and Xc = 1 / (2 * Pi * F * C), and combines these with resistances R1 and R2 to find the Thevenin resistance (RThevenin). The calculations are accurate as per the outlined method.

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jboavida
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Hi All,

My name is Joaquim and I'm new in this forums. I am a Electronic Engineer student (1st Year).

I have a question about a Thevenin equivalent circuit in AC.

I need someone to tell me if I'm doing the right math in finding the thevenin equivalent (AB point):

Please see the following circuit:

http://www.mydrive.ch/en/download.php/6748873/Cir1.bmp

I need to calculate the inductor reactance
(Xl) = 2 * Pi * F * L
The capacitor reactance
(Xc) = 1 / ( 2 * Pi * F * C )

And then I add R1 to L1 reactance and parallel with C1 reactance.
Finally, the result added to R2.

((R1+XL1) // XC1)+R2 = RThevenin

Are my calculations correct or I'm missing something?

Thanks in advance

Joaquim
 
Last edited by a moderator:
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Joaquim

couldn't see you circuit diagram? didn't seem to load up.

I think it would be a good idea if you had a read through Volume II AC

http://www.allaboutcircuits.com/vol_2/chpt_5/2.html
 
Thanks for your awnser.

Sorry, You should see the circuit now.

Joaquim
 

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