Engineering Solving Dependent Voltage Sources in AC Circuit Mesh Analysis

AI Thread Summary
In mesh analysis of AC circuits with dependent voltage sources, it is crucial to accurately identify the nature of the dependent source, as it simplifies the analysis. The dependent current source can be transformed into a voltage source for easier calculations, although there is uncertainty about the validity of source transformation for dependent sources. The voltage Vo can be calculated as the difference between currents I1 and I2, leveraging the relationship V = IZ, where the impedance is 1. By substituting I3 with the expression for Vo, the analysis can be streamlined, reducing the number of equations needed. Understanding these concepts is essential for effective mesh analysis in AC circuits.
jhmz
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Im doing mesh analysis on an AC circuit only problem is i don't know how to handle the dependant voltage source.

My circuit:
http://img139.imageshack.us/my.php?image=accircuitrx0.jpg

I think I am supposed to just assign a value for Vo but I am not sure. Is it possible to work out what Vo is?

Thankss
 
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There's a problem with using mesh analysis here: you don't know the potential drop across the dependent current source. Yes you can work out what V0 is. I did it using nodal analysis.

If you really want to use mesh analysis, you should use source transformation to convert that dependent current source to a voltage source.

EDIT: Ok, scratch out that the last sentence above. I can't remember if you can apply source transformation to a dependent source. Can someone confirm this?
 
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ok up until 5minutes after i posted this i thought that the dependent source was a voltage source (facepalm) i should have known it was a current source lol. So it makes things easier that it is a current source.

Vo is simply I1 - I2, as V = IZ but the impedance at the resistor is 1 so therefore:
V = IZ
V = I*1
V = I

Now instead of having 3 equations (for 3 mesh's) and unknowns to find you can simply replace what would have been I3 (in the third mesh) with 2Vo = 2(I1 - I2) which eliminates the need for the third equation

Thanksss
 

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