Center Tap Transformer Equivalent?

Discussion in 'General Electronics Chat' started by lookitsnichole, Mar 1, 2013.

  1. lookitsnichole

    Thread Starter New Member

    Feb 17, 2013
    4
    0
    Is there an equivalent circuit available for center tapped transformers? A normal transformer has the t-model that splits it into inductors, but I can't find any information about center tapped transformers.
     
  2. #12

    Expert

    Nov 30, 2010
    16,278
    6,789
    If you use 2 transformers which have secondaries that are half the total voltage you need, you can connect the secondaries in series and arrive at an excellent substitute for a center tapped transformer. I don't know about T-models.
     
  3. gootee

    Senior Member

    Apr 24, 2007
    447
    50
    A google.com search for "center tapped transformer model" gives 2,950,000 hits.

    Here is one of them:

    http://www.fmtt.com/Transformer SPICE Model 2-14-08.pdf

    You should also measure and model the leakage inductance and the resistance of each winding.

    You could probably just measure with one secondary and model it and the primary as one transformer, and then use two of those, and connect the secondaries of the two of them, as if the connection was the center tap.

    Here is one way to do the measurements:

    http://www.fullnet.com/~tomg/gooteesp.htm#1

    You can then also "per-unitize" the resulting model, so it is scalable to different VA ratings, Vrms output voltage ratings, frequencies, and input voltages.
     
    Last edited: Mar 1, 2013
    #12 likes this.
  4. lookitsnichole

    Thread Starter New Member

    Feb 17, 2013
    4
    0
    Thank you. I tried googling "center tap transformer equivalent" and some variations on that, but nothing useful came up.
     
  5. gootee

    Senior Member

    Apr 24, 2007
    447
    50
    Last edited: Mar 3, 2013
Loading...