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Posted by Ashley Clarke on February 25, 2006, 7:02 pm
> So I've designed a translater using basic 74 series ttl gates. I've
> designed both a half and full step translater. I finished soldering
> together the parts and i tested out the four outputs and the full step
> sequence was correct. However I hooked up the outputs to a ul2003
> darlington array chip to the stepper motor and it would not move at
> all.... I probed the inputs and it looks like the translator output is
> greatly attenuated. is there a way to keep the origial signal without
> attenuating? could i just use a 7407 buffer between the driver and
> translator?
Look up "Bootstrapping".
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Ashley Clarke
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> designed both a half and full step translater. I finished soldering
> together the parts and i tested out the four outputs and the full step
> sequence was correct. However I hooked up the outputs to a ul2003
> darlington array chip to the stepper motor and it would not move at
> all.... I probed the inputs and it looks like the translator output is
> greatly attenuated. is there a way to keep the origial signal without
> attenuating? could i just use a 7407 buffer between the driver and
> translator?