Details

This stepper motor driver offers a compact, reliable stepper motor control system. An integrated chopper drive circuit safely provides the maximum motor torque for a given drive voltage, even one many times over the manufacture-specified voltage, offering tremendous torque and speed improvements over traditional stepper motor control circuits. Maximum coil current(2A) is easily set using a potentiometer, and can be dynamically adjusted. The highly efficient design of the drive circuitry makes it the ideal motor control solution for nearly any application.

Motor current for each phase is set using an on-board potentiometer and the controller is capable of handling motor winding currents of up to 2 Amps per phase. It operates from a DC supply voltage of 9-24V. The drive provides all basic motor controls, including full or half stepping of bipolar steppers and direction control. All signals (Step, Direction, Enable) can be interfaced to external logic or a microcontroller. You can easily control the motor from your computer's parallel port or microcontroller!

Stepper motors are rated by current and not by voltage. This is a chopper driver because it is switching on and off current allows a set current to be fed to the coils and not be dependent on the voltage of the power supply. The Chopper Driver also allows for the use of higher voltage power supplies (up to 24V) overcoming the effects of the inductance of the coils giving better performance and a higher top speed.

Full & half stepping, directional control, motor enable/disable, and automatic current regulation provide a powerful, easy-to-use motion control system. The built-in chopper frequency generation and current sensing circuitry drives the motor at a presettable coil current.

This controller is perfect for desktop CNC applications.



Features

• Easily adjustable motor current (0.3A to 2A)
• Full and Half stepping mode selection
• Step and Direction inputs directly from parallel port or microcontroller
• Enable input can be connected to ground to disable motor (Optional Input)
• Connections via screw terminals
• Develops maximum possible motor torque by using dual coil-current sensing & control loop circuits
• Allows use of drive voltage beyond rated motor specification for enhanced torque & speed
• Diodes and large filter capacitors for enhanced noise suppression
• Primary drive circuit thermal overload protection