Discussion in 'The Projects Forum' started by papmalik, Oct 21, 2009.

  1. papmalik

    Thread Starter New Member

    Oct 21, 2009
    hello :)
    I need your help so plz help me if you can thanks in advance. :)

    I want to build an electronic circuit that alow me to controle the exitation curent of the DC genrator

    basicly its a A Ward Leonard Control system

    I want to replace this

    (used to control the speed of dc motor hoked up to the output the dc generator ).

    with an elecronic circut that will do the same thing.(controling the excitation curent with potentiometer for exemple)

    other thing is it possible to replace all this systeme (too od) with a PWM circut ?
  2. JDT

    Well-Known Member

    Feb 12, 2009
    It is possible. What is the range of current and voltage that the armature needs?

    If you wanted to buy something ready made see: http://www.sprint-electric.com/index.php

    Although I have to say - that's a nice old bit of kit!
  3. t06afre

    AAC Fanatic!

    May 11, 2009
    I think it should not be to hard. The current used to exitate a DC generator is quite small compered to the output current. If I remember correct the relationship is about 1 to 90. I may be wrong here. But anyway be aware about one thing. The current has to be regulated. You can very quickly burn out the field windings if the armature is moving to slow or not mowing at all