I didn't originally include the
eagle-format schematic and board for this project. Well, here it is.
I suggest revising this board to use separate Vdrive and Vcc power inputs
if Vdrive is above 12V. Another approach might be to switch to a TO-220
regulator—as I noted in the other entry, the TO-92 gets quite hot
if you try to run it on 24V. My first guess is that the logic draws up to
100mA, depending on the encoders. It would also be a good idea to ensure the
capacitors are appropriate to the task.
Files currently attached to this page: