MB3001 UniPolar Stepper Controller
MB3002 Unipolar Stepper Controller
MB3003 Unipolar MicroStep Controller
MB2001 Dual Channel Instrument Amp
MB4001 Quad Relay Controller
MB6050 Powered Protoboard
MB3002 Unipolar Stepper Motor Controller
Based upon Allego Microsystem's SLA7050 Unipolar Stepper Motor Controller Chip, the MB3002 MechaBlox card is high performance and simple to use.
The MB3002 is part of the Mechablox system. It can be used alone, or combined with additional MechaBlox boards for more complex applications.
Small in size (70mmx70mm), but big in performance, The MB3002 is capable of delivering programmable drive currents in excess of 1 Amp per phase.
The MB3002 uses a Pulse Width Modulated "chopper" drive. It get's the extra performance you need out of your stepper motor without the inefficiency and excess heat of bulky "RL" drives using expensive forcing power resistors. Power level is software controlled via a 6bit DAC, giving a wide range of running torque settings, and as well as holding torque settings.
The SLA7050 controller chip is optimized for unipolar stepper motors. Phase drive is hardware encoded. Without the need for software phase encoding, this configuration gives the best step rate performance, and easiest programming.
The MB3002 has three complete digital sensor interfaces with source power and signal
conditioning, compatible with slow level changing photo-interrupters, Hall effect switches,
and reed switches. Typical use for these interfaces would be an step index indicator,
and left and right limit detection.
The MB3002 comes ready to use, preprogrammed with MechaView software which supports both simple standalone RS232C interface applications, or more complex networked RS485.
All software source code is available under a GPL license. The MB3002 can be reprogrammed
using the inexpensive Atmel AVRISP device and free Atmel AVR Studio software (available from
www.atmel.com for teaching, experimentation or other custom applications.
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