power conversion

Discussion in 'General Electronics Chat' started by bwaley, Oct 5, 2008.

  1. bwaley

    Thread Starter Member

    Jun 1, 2008
    27
    0
    hallo! Can somebody tell me how i can convert +d.c to -d.c power.
    also why do telecommunication circuits use negative d.c power?
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Since the voltage readings are relative, reversing the leads should do the conversion.

    Are you speaking of RS-232 protocols that use -15 volts?
     
Loading...