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Design Languages >> Verilog-AMS >> ideal transformer modelling
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Message started by tarullim on May 11^th, 2009, 9:14pm

Title: ideal transformer modelling
Post by tarullim on May 11^th, 2009, 9:14pm

hi there,

I am trying to model an ideal two winding transformer, 1:n turns ratio. I have tried to put two dependent sources, a current controlled current source on the primary and a voltage controlled voltage source on the secondary. However upon compiling and elaborating, I receive an error message indicating that the instance of the current controlled current source can only have 2 terminals, but has 4. If I am not mistaken, the proper syntax for the current relationship is I(p,n) <+ gain*I(ps,ns)? The Verilog AMS book states this is the proper syntax. I'm not sure why it doesn't work.

Any help is greatly appreciated, thank you in advance

Title: Re: ideal transformer modelling
Post by Geoffrey_Coram on May 14^th, 2009, 7:03am

It's not clear to me what your "current controlled current source" is: did you write a Verilog AMS model for it, or are you using a SPICE element? I think Spice3f5's CCCS uses a voltage source for its current probe. If you write your own VAMS model, with the syntax you suggest, then obviously you'd need to have a module with four ports.