Looking for a PWM Controller

Discussion in 'The Projects Forum' started by gte, Jul 22, 2010.

  1. gte

    Thread Starter Active Member

    Sep 18, 2009
    347
    4
    Any ideas where to buy an assembled PWM controller, 0-10v, adjustable frequency and pulse width, 10amps max would be fine.

    I have a frequency generator, should I try and use that?
     
  2. schmitt trigger

    Active Member

    Jul 12, 2010
    36
    7
    There are many kit offerings in the web, from Velleman, Ramsey, etc, which sell DC-motor controllers. Google those.
    These will satisfy most of your requirements, except the frequency which tends to be fixed; but if you find a suitable kit and post its schematic, people here will tell you how to hack it to change its frequency.
     
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  3. gte

    Thread Starter Active Member

    Sep 18, 2009
    347
    4
    Hi, thanks for the reply.

    Can something like this be modified? It's for a push/pull solenoid if that matters.

    http://cgi.ebay.com/DC-12-30V-30A-P...tem&pt=LH_DefaultDomain_0&hash=item20b2436ca3


    [​IMG]


     
  4. gerty

    AAC Fanatic!

    Aug 30, 2007
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    gte likes this.
  5. gte

    Thread Starter Active Member

    Sep 18, 2009
    347
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    Hi Gerty, that'd work well except for 1 thing, the fixed 100hz frequency, I'd need that to be about 312hz ... is that possible or have you modified that? Thanks!



     
  6. gte

    Thread Starter Active Member

    Sep 18, 2009
    347
    4
    Actually, I may be able to pulse this solenoid at 100hz without any adverse effects
     
  7. gerty

    AAC Fanatic!

    Aug 30, 2007
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    I overlooked the freq. Try this
    http://store.qkits.com/category.cfm/DCMOTOR

    You can select from others with different fixed, or variable frequencies.
    There are other manufacturers out there, this is just one that I have dealt with.
     
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