how do i make a motor alternate in direction

Discussion in 'General Electronics Chat' started by ajaj69, Feb 22, 2007.

  1. ajaj69

    Thread Starter New Member

    Feb 22, 2007
    1
    0
    hi

    may b someone can help me, i am doin a university project where we need to build a device that will climb a ladder.

    i have a DC motor and i need it to change direction every 10 or may be 15 seconds. what component can i use that will enable me to do this.

    thanks

    aj
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    A double-pole double-throw relay can be used to switch the polarity of the applied voltage and reverse the motor.
     
  3. nomurphy

    AAC Fanatic!

    Aug 8, 2005
    567
    12
    Or, if you want to go solid-state, google on H bridge.
     
  4. Gompers

    Member

    Feb 21, 2007
    18
    0
    Years ago, In my youth,I built similar device using a stepped down motor and two limit switches . (Similar to a garage door opener's controls)
    I remember the switches were double pole-double throw micro switches

    ED
     
Loading...