The_UnforgiveN
New Member
That orange colored ICs? These photos r from stepper drivers FET3 and FET4
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The_UnforgiveN said:@bloody-orc, if I could see the text on them, I would not ask. How can you be such smart?
@Papabravo and @ronsimpson, thank you for your info. Probably they're networks. I don't have any part name or number, or any part list for this card.
Too bad. You probably won't have much luck duplicating the card either. I guess that is what you get when you ask someone to reverse engineer or copy something instead of designing a new and better one. BTW - great movie!The_UnforgiveN said:@bloody-orc, if I could see the text on them, I would not ask. How can you be such smart?
@Papabravo and @ronsimpson, thank you for your info. Probably they're networks. I don't have any part name or number, or any part list for this card.
What makes you think that current is going through the resistor packs? They could be just for biasing. Without a circuit diagram we can speculate endlessly and still be full of brown.justDIY said:what is the advantage of using that high-current driver IC (the ones with the heavy duty pins in the center), only to have its outputs routed through a resistor network, into bjts ultimately controlling mosfets.
wouldn't it be simpler to have the driver IC directly drive some power bjt's or mosfets?