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±12 to ±18 V split rail power supply

Discussion in 'Electronic Projects Design/Ideas/Reviews' started by jonny4059, Apr 19, 2011.

  1. jonny4059

    jonny4059 New Member

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    I don't know if i'm being a bit stupid but:

    Essentially I want start with a (12V) battery and end with a ±12 to ±18 V split rail power supply. After a bit of googling I can't seem to see and easy way of achieving this (without making up my own PCB)

    I presume a "±12 to ±18 V split rail power supply" could have +12V 0V -12V rails or +13V 0V 13V or +18V 0V -18V etc etc

    Thanks for any help in advance!
     
  2. MikeMl

    MikeMl Well-Known Member Most Helpful Member

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    How much current at +V?
    How much current at -V?
     
  3. jonny4059

    jonny4059 New Member

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    30 mA for both.
     
  4. dave

    Dave New Member

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  5. Reloadron

    Reloadron Well-Known Member Most Helpful Member

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    You want a DC/DC converter something like one of these. I just happen to use Cosel USA as an example and these are pretty common units. Input voltsge between 9 and 18 volts and output (dual) +/- 15 VDC (Isolated too). They are pretty cheap as to the power you are looking for. They are also carried by a good number of distributors.

    Ron
     

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