Hallo, everybody!
I am trying to use an ideal transformer (TF from Lumped Components) and I cannot understand why the DC current doesn’t flow through it. I also tried a very simple simulation, two DC constant current sources (1 mA each) supplying the two turns (primary and secondary) and, instead of obtaining 0 V across the inductors, I obtained 1 GV (obviously, this is a numerical error due to the impossibility of convergence). I also tried connecting resistors in series or in parallel with the turns, no success. Is this a bug of the ADS, or have I made an error? Thank you!
Alex
I am trying to use an ideal transformer (TF from Lumped Components) and I cannot understand why the DC current doesn’t flow through it. I also tried a very simple simulation, two DC constant current sources (1 mA each) supplying the two turns (primary and secondary) and, instead of obtaining 0 V across the inductors, I obtained 1 GV (obviously, this is a numerical error due to the impossibility of convergence). I also tried connecting resistors in series or in parallel with the turns, no success. Is this a bug of the ADS, or have I made an error? Thank you!
Alex
The reason your test with two sources failed is because you have two current entering the tranformer on opposite side with the same magnitude and hence the magnetic flux generated in each winding will cancel each other.
If you place just one of the sources and on the other side you place a load resistor it will almost work as expected. I say almost because the second winding will have a DC current and voltage which in a real transformer is impossible. We recommended you place a DC_Block component in series with the second winding if this is a problem.