genuine yako ykd3606ma ykd3606m stepper motor drive for nema 17 nema23 nema24 nema34 stepper motor with dc 24 to 80v voltage

according to common sense, the operating frequency of the stepper motor driver uses high voltage uh power to increase the current leading edge of the conducting phase winding, and after the leading edge, the low voltage ul is used to maintain the winding current. this effect also improves the high frequency performance of the driver and eliminates the need to series resistor rs, eliminating additional losses.