Dual DC Converters for split rails

Discussion in 'General Electronics Chat' started by fsonnichsen, Oct 29, 2013.

  1. fsonnichsen

    Thread Starter New Member

    Jun 6, 2013
    15
    0
    I need to build a split rail converter with 24V in and +15V, -15V out. There are not a lot of converter modules with this configuration however in the past I have succeeded by putting two 24->15 converters back to back sharing a common ground. (I don't want to start from scratch and build a converter but prefer to assemble with commercial modules)

    I would like to insure best practices here, and wonder if there is a "gotcha" document discussing any problems or procedures with this type of design.

    Any comments appreciated
    thanks
    Fritz
     
  2. antonv

    Member

    Nov 27, 2012
    149
    27
    I have successfully done the same, as long as their outputs are isolated so that they are floating.
     
  3. #12

    Expert

    Nov 30, 2010
    16,298
    6,808
    I have even floated a 5 volt switching supply on the 400 VDC output of a vacuum tube rectifier (5Y3). The isolation in those SMPS supplies can be very good. Read the documentation before trying several hundred volts!
     
  4. fsonnichsen

    Thread Starter New Member

    Jun 6, 2013
    15
    0
    OK guys--thanks for the advice!

    fritz
     
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