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24V Stepper — Parallax Forums

24V Stepper

ArchiverArchiver Posts: 46,084
edited 2001-09-09 15:22 in General Discussion
Do any of you see a problem controlling a 24V, 150mA stepper motor
with a ULN2803 and a stamp BS2SX? For the 24 volts I am using an off
the shelf power supply. I see a lot of posts on here concerning
frying stamps and I want to make sure there is no risk of me doing
that.


Thanks

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2001-09-09 03:25
    This is fine. Remember to connect the +24 VDC to the K terminal on
    the 2803. This is the common point of the diodes in the 2803.

    To cut down on ground noise, you might run a separate lead from the
    GRD on the 2803 back to the wherever you are tying the +24 and +5 VDC
    ground together.

    Peter Anderson, http://www.phanderson.com/stamp/

    --- In basicstamps@y..., pstrittmatter@y... wrote:
    > Do any of you see a problem controlling a 24V, 150mA stepper motor
    > with a ULN2803 and a stamp BS2SX? For the 24 volts I am using an
    off
    > the shelf power supply. I see a lot of posts on here concerning
    > frying stamps and I want to make sure there is no risk of me doing
    > that.
    >
    >
    > Thanks
  • ArchiverArchiver Posts: 46,084
    edited 2001-09-09 15:22
    At 20:59 09/08/01, pstrittmatter@y... wrote:
    >Do any of you see a problem controlling a 24V, 150mA stepper motor
    >with a ULN2803 and a stamp BS2SX? For the 24 volts I am using an off
    >the shelf power supply. I see a lot of posts on here concerning
    >frying stamps and I want to make sure there is no risk of me doing
    >that.

    The ULN2803 is rated to do what you describe. Properly connected, your
    Stamp will not be at risk.


    Jim H
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