New member building PWM slot car controller

Discussion in 'The Projects Forum' started by 999alfred, Sep 26, 2010.

  1. 999alfred

    Thread Starter New Member

    Sep 16, 2010
    4
    0
    Hello,

    I am new to this forum, and what drew me here is a year old thread started by Unjust concerning a PWM slot car controller. As an old 1/24th sale racer from the sixties/seventies I was surprised when a new track opened up very near me (East TN Model Raceway, http://slotblog.net/index.php?showtopic=10286 ). I like to build all my equipment, that's the fun, and I started looking at a PWM mosfet controller. I have written code for a PIC micro I had laying around to use the ADC input, connected to an old Aurora HO trigger controller I still have, and use it to send out PWM from the PIC.
    Where I am hurting is understanding the MOSFET charge pump, etc interfacing. I got the last attachment drawing and was wondering Unjust, if you had a final working version.
    I found JayGee Racing's document describing PWM controllers, but again no detail on the charge pump circuitry.

    Thanks,
    tj
     
  2. SgtWookie

    Expert

    Jul 17, 2007
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  3. 999alfred

    Thread Starter New Member

    Sep 16, 2010
    4
    0
  4. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Well, Unjusts' last activity on here was about 10 months ago. If you would like a reply from them, I would suggest posting in that same thread (as they might be getting E-mail notifications when a reply is made) or sending a PM or E-mail to them.
     
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