DM542 is a type of two-phase hybrid stepping motor driver, The drive voltage of which is from 18VDC to 50VDC. 

It is designed for use with 2-phase hybrid stepper motor of all kinds with 42mm to 86mm outside diameter and less 

than 4.0A phase current. This circuit that it adopts is similar to the circuit of servo control which enables the motor 

run smoothly almost without noise and vibration. Hording torque when DM542 run under high speed is also significantly

 higher than the other two-phase driver, what's more, the positioning accuracy is also higher. It is widely used in middle

 and big size numerical control devices such as curving machine, CNC machine, Computer embroider machine, packing 

machines and so on.