2-phase digital stepper driver, 80-220V AC power supply for 2 phase Nema 34, 42 stepper motor, manufacturer direct sale.Features:
Driver Wiring DiagramInstallation Size (Unit: mm)Tips: Current comparison chopper drive method for stepper motorCurrent comparison chopper drive is to convert the stepper motor’s winding current into a certain percentage of voltage, which is compared with the preset value output by a D / A converter, the result of which comparison is used to control the switch of power tube for the purpose of control of the winding phase current.Advantages: To make motion control simulate characteristics of sine waves, greatly improving performance, relatively small speed and noises, higher subdivision able to be used, current popular control method.Disadvantages: The circuit is more complex. It is difficult to control circuit interference which should be consistent with theoretical requirements. Vibration is easy to occur. In the control of formation of crests and troughs of sine waves, high-frequency interference is easily led to, which further leads to heating of drive elements or aging because of excessively high frequency. That is also the main reason why red light protection tends to occur when many drives are used for more than one year.