jaydag71
New Member
I am trying to drive a bunch of those tiny bipolar steppers salvaged from 3.14floppy drives- they are pretty small 5V 2phase. I have a bunch of uc3770b stepper drive ic's but haven't been able to figure out how to hook everything togeter yet- confused about what to feed for a voltage ref, how to implement the phase, and some other parts are fuzzy too- I have enough parts around that I could assemble a bunch of hbridge transistor circuits which I'm sure would be a good fit but still confused about how to use phase with the discrete hbridges amoung other things....
The goal is to drive these steppers back and forth only a few degrees, say 90 forward then 90 back, in various looping patterns. Any help or tips to online resources would be great- I've been looking for days but not any luck for the IC and nothing simple for the discrete circuits.
The goal is to drive these steppers back and forth only a few degrees, say 90 forward then 90 back, in various looping patterns. Any help or tips to online resources would be great- I've been looking for days but not any luck for the IC and nothing simple for the discrete circuits.