MB3001 UniPolar Stepper Controller
MB3002 Unipolar Stepper Controller
MB3003 Unipolar MicroStep Controller
MB2001 Dual Channel Instrument Amp
MB4001 Quad Relay Controller
MB6050 Powered Protoboard
MB3003 Unipolar Stepper Motor Microstepping Controller
Based upon Allego Microsystem's SLA7042 Unipolar MicroStep Stepper Motor Controller Chip, the MB3003 MechaBlox card is complete high performance Microstepping Control Solution.
The MB3003 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 MB3003 is capable of delivering programmable drive currents in exceess of 1 Amp per phase, and because it is a 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.
The QUAD outputs of the MB3003 are independent, and not harware encoded. The level for each phase is controlled by an eight level DAC. All phase drive methods are by software control. This allows for experimenting with different drive methods such as Wave-Drive, or use with different stepping motor and unidirectional DC motor drive configurations.
Also, because the individual drivers are independent, the MB3004 can be used to drive four individual solenoids, relays etc...
The MB3003 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. Total 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 MB3003 has three complete digital sensor inferfaces with source power and signal conditioning, compatible with photo-interrupters, Hall effect switches, and mechnical switches. Typical use for these interfaces would be a step index indicator, and left and right limit detection. In addition, one unbuffered analog input to the A/D convertor is provided. Provision is made on the PWB to add a bias resistor to support a thermisitor for motor temprature sensing.
The MB3003 comes ready to use, preprogrammed with MechaView software which supports
both simple standalone RS232C
interface applications, or more complex networked RS485. In addition, all
software source code is available under a GPL license. The MB3003 can be reprogrammed
using the simple Atmel AVRISP device and free Atmel AVR Studio software tor custom
applications or experimentation.
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