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quad dc motor driver — Parallax Forums

quad dc motor driver

fixmaxfixmax Posts: 91
edited 2013-07-28 09:43 in Propeller 1
Hi folks,

Has anyone developed a brushed DC motor drive for the prop with at least the following specs:?

1) 4 motors
2) 25-36v range motor voltage
3) 10A - 25A continuous current capability
4) quick start prop header
5) ability to use quickstart Ethernet board

I'm thinking of designing and building one, but I don't want to if someone has already done so. I can buy single and dual motor drivers, like a Pololu or Dimension engineering board, but I cant find any that will handle 4 motors.

Comments

  • kwinnkwinn Posts: 8,697
    edited 2013-07-28 09:40
    I have not seen anything like that in my hunts on the internet, but then again I am not into robotics. If you plan on making this a commercial product may I suggest shooting for inclusion of 48V motors as well, so using a minimum of 60V mosfet drivers. That opens up another niche area for you that has very little in the way of inexpensive parts available.
  • tonyp12tonyp12 Posts: 1,951
    edited 2013-07-28 09:43
    > 25-36v range motor voltage at 10A - 25A
    Those are some pretty high values.
    Does the motor need to be bi-directional? or just off and forward?
    Is the median 18A peak values for a short time, or continues?


    4 of these: DRV8432 (let me know if you want me to design board)
    Current in Parallel Mode: 14 A Continuous (24 A Peak)
    http://www.mouser.com/ds/2/405/sles242d-127577.pdf
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