Center-tapped Transformer

Discussion in 'General Electronics Chat' started by worldHello, Oct 19, 2014.

  1. worldHello

    Thread Starter New Member

    Oct 15, 2014
    23
    0
    So I need a transformer that has a center tap at the primary (not the secondary). Most transformers I found have center tap at the secondary.

    This is my strategy:
    Get two transformers and line them together. The middle is then the center tap.
    Does this strategy work?
     
  2. #12

    Expert

    Nov 30, 2010
    16,261
    6,770
    Yes. Just be sure to check the phase relationships of your secondaries so they add up instead of cancel each other.
     
  3. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,518
    2,369
    Yes if phased right if the secondaries are referenced to each other, What is the application?
    Max.
     
  4. alfacliff

    Well-Known Member

    Dec 13, 2013
    2,449
    428
    there are a whole bunch of transformers with center tapped primaries, called control transformers. used in industrial equipment to supply control voltage, and have either a center tapped primary or two primaries for a wider range of line voltages.
     
  5. crutschow

    Expert

    Mar 14, 2008
    13,000
    3,229
    I'm confused. :confused: Initially you said you want to make a transformer with a center-tapped primary and then you say you have a whole bunch of such transformers. So what do you want?
     
  6. atferrari

    AAC Fanatic!

    Jan 6, 2004
    2,648
    761
    Are they kind of autotransformers implemented on the primary? Isn't it easier to have that tap in the secondary?

    Sorry. I cannot grasp the concept.
     
  7. atferrari

    AAC Fanatic!

    Jan 6, 2004
    2,648
    761
    Haven't you mixed both posts, Carl?
     
  8. crutschow

    Expert

    Mar 14, 2008
    13,000
    3,229
    ...............................................
    Edit: I certainly did. :rolleyes: The same (default) avatar led to my confusion.
     
    Last edited: Oct 20, 2014
  9. djsfantasi

    AAC Fanatic!

    Apr 11, 2010
    2,802
    832
    The OP stated he needed one transformer with a center-tapped primary .

    Alfacliff said there was a whole bunch of such transformers.

    I think you mixed up the posts from two members.
     
  10. atferrari

    AAC Fanatic!

    Jan 6, 2004
    2,648
    761
    From what I could see by browsing the Web, primary seems to be two or more primaries, not actually one taped.
     
  11. MrChips

    Moderator

    Oct 2, 2009
    12,432
    3,360
    Get a transformer for dual AC mains input 120/240VAC. It will have two primary windings.
     
Loading...