12V input to +12V/+6V/-6V/GND output

Discussion in 'General Electronics Chat' started by borntonag, Dec 7, 2012.

  1. borntonag

    Thread Starter New Member

    Dec 7, 2012
    Hi everyone, I was searching online on how to make convert 12VDC to +12V/+6V/-6V/GND VDC outputs and found out this forum so I'll ask for help here.

    I currently have this circuit:
    (circuit attached)

    My idea is to supply the entire circuit through a DC connector, connecting to it a 12VDC adapter.
    So I need a circuit which can convert the 12V to +12V (VCC_I) and +6V/-6V (VCC_P/VCC_N), to replace the box on the left of my circuit.

    First of all, is this possible?

    If it is, can anyone make me a quick schematic of the circuit I need to this conversions?

    Best regards to all [​IMG]
  2. tindel

    Well-Known Member

    Sep 16, 2012
    There are a couple ways to accomplish this - but I'm a little fuzzy on what it is you're actually trying to do. There might be better ways to accomplish this if you give more details of what it is you're trying to do.

    But if you insist on doing whatever you're doing this way you can
    1. buy a hybrid converter that changes 12V to 6 and -6
    2. design a converter that changes 12V to 6 and -6
    3. use a LM127 to go from 12 to 6V and use a 555 to convert 6 to -6 - but this is a pretty wimpy supply line, but might work if you're just powering a couple op-amps.
  3. KJ6EAD

    Senior Member

    Apr 30, 2011
    Look up "rail splitter circuits" and "inverting regulators".