Maybe this is good for you, if available locally;

https://www.olimex.com/Products/Robot-CNC-Parts/MotorDrivers/BB-VNH3SP30/open-source-hardware


On Wed, 14 Oct 2020 at 22:42, Gene Heskett <ghesk...@shentel.net> wrote:

> After it finally was delivered, testing looks good but now I need a
> controller, smaller and lower voltage than one of Jons pwm-servo's.
>
> This motor supposedly turns 220 rpms no load with 24 volts applied.
>
> It has an encoder on the rear which is making a 5.4khz quadrature signal
> when its running free, out of 4 wires, no index which is fine as I'll
> put a switch on the BS-1 for a home/index anyway.
>
> This motor draws 4 amps at max rated 100 watt input.
> No clue what the LRA amps is but it does jump pretty good getting started
> so I'd expect startup in-rush to be at least 10 amps.
>
> I'd like to control its position like a common rotary servo axis, so what
> do we have in our linuxcnc toolbox that looks like a bi-dir pwn
> controlled twin H bridge to run a 24volt brushed PMDC motor with a 10
> amp in-rush as if it were a servo?
>
> Thanks all.
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> If we desire respect for the law, we must first make the law respectable.
>  - Louis D. Brandeis
> Genes Web page <http://geneslinuxbox.net:6309/gene>
>
>
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