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What's the difference...

Discussion in 'd.i.y.' started by chiily, Jan 13, 2005.

  1. chiily

    chiily PFM Special Builder

    ...between an 'symmetrical power supply' and an 'asymmetrical power supply'?

    I'm building a couple of Velleman K4700 kits and the text mentions I have to figure out which type of PSU I have (Transformer, diodes, Big CAPS, VBE regulator board, NCC200, speaker -> smile!)

    The life of four resistor depends on your answers :)


    Bright idea...is one a switching PSU and the other a linear one?

    And then I googled and found a link.
  2. markt

    markt hello

    You have a symmetrical supply if it is centre tapped earth?

    If supply wires are either side of 0v.

  3. chiily

    chiily PFM Special Builder


    I have the two secondary windings' centres connected to the 0v between the two PSU caps, by passing the rectifier, so I'm sure it's symmetrical.


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