Dubuque, IA Free Moderated Classifieds Site > OLD ADS FROM PREVIOUS YEARS
> 2001
> April
> Bipolar stepper motor driver, 50 volt, 3 amp, microstep
Bipolar stepper motor driver, 50 volt, 3 amp, microstep
Microstepping Bipolar Chopper Stepper Motor Driver Kit (55Vdc, 3 Amp)
Note that you will need to obtain the rest of the parts to assemble the board such that it looks like this:
These additional parts cost approximately $45-55 are all readily available from DigiKey, Jameco, Future and other similar sources. Complete parts list and other documentation on my website.
* Open Source - The schematic, parts list, and software are all free downloads!
* Hobbyist-friendly - No surface mount parts means allows this drive to be easily repaired!
* DMOS driver chips rated at 55V and 3 Amps.
* DIP Switch selectable modes of stepping:
1. Full Step, Both Phases On
2. Full Step, Wave Drive
* Optically isolated step, direction, & enable signals.
These signals are ground referenced so no +5VDC is required - hook directly to your parallel port.
* Selectable automatic idle current reduction to reduce motor heating.
Motor current can be reduced if no steps are received for 3 seconds. Oscilloscope Image
* DIP switch selectable motor test mode.
Allows for testing of motor/drive/wiring without an externally generated step signal.
* Motor braking can be activated when drive is disabled.
Alternatively, motor braking can also be disabled such that the motor will freewheel when drive is disabled.
* Motor current is adjustable by two potentiometers. (One for each motor phase)
* Removable screw terminals for all wiring connections.
* Status LED flashes during normal operation to let the user know the microcontroller is running.
Illuminates solid during a fault condition.
* Quality double-sided printed circuit board with ground plane and silkscreen legend.
Board size is 3.25" x 4.30" with mounting holes for #6 screws in each corner.
For schematics, parts list, design notes, AVR firmware and etc. please visit this website.
Let me know what you want. I have plenty of items in stock and will happy to list completely assembled and tested boards, parts kits, and/or larger quantities.
