Homebrew PCBs

On Monday 20 June 2005 08:59 am, Robert Hedan wrote:
> I've done what I believe are improvements to the 12V stepper motor driver
> schematic I had in the Photo section.  It's no longer there, I moved it to
> the CNC folder of the Files section.
>
> I've added opto-couplers between the CMOS chips and the transistors,
> lowered the CMOS voltage down to 5 volts and increased the motor voltage to
> 24 volts (which is what my motors are rated).
>
> Comments please on the modifications.

What are you using for driver transistors there?