DC motor control

Discussion in 'General Electronics Chat' started by takeitapart, Aug 16, 2010.

  1. takeitapart

    Thread Starter New Member

    Jun 20, 2010
    21
    0
    I have similar questions. I came across this schematic to control a 90v dc motor. I know it is not ideal but for basic speed control? Any thoughts?

    DCmotor.jpg
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    I moved this because it does not appear to be homework, and it's a topic hijack - http://forum.allaboutcircuits.com/showthread.php?t=41774

    In the case you show, it will be an effective speed control. The AC becomes pulsating DC, so the SCR will turn off each cycle. This is a very different case form operating from batteries.
     
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