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Transformer output drawing + and -

quidam034 Posted messages 30 Registration date   Status Member Last intervention   -  
_Ritchi_ Posted messages 21130 Registration date   Status Contributor Last intervention   -

Hello, I would like to have confirmation regarding the drawing on the transformers for the positive and negative. In the photo, is the positive on the inside and the negative on the outside? I am 99% sure, but I would like confirmation. The negative on the outside should be the most common, right? To avoid touching the positive. Thank you for your responses.

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2 answers

  1.
    baladur13 Posted messages 47323 Registration date   Status Moderator Last intervention   14 387
     

    Hello,

    The drawing

    shows that the plus is at the center of the connector.

    See https://www.pcbasic.com/fr/blog/power_supply_symbols.html
    paragraph Power supply polarity symbols

    Very difficult to catch a black cat in a dark room.
    Especially when it's not there...

    1
    1. _Ritchi_ Posted messages 21130 Registration date   Status Contributor Last intervention   6 135
       

      Hello and thanks to baladur13 for this very informative link.
      Ritchi

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  2. brupala Posted messages 111142 Registration date   Status Member Last intervention   14 442
     

    Hello,

    You also need to use the correct terms: what you’re talking about is not just a transformer (at least not only) but a power supply or a charger that provides a continuous voltage and current, which a simple transformer does not do.

    In the output symbol, the solid line with 3 dashes above indicates a rectified continuous power supply, unlike a battery or a cell.

    And there you go....

    But goodness, the line spacing is so annoying!!

    0