3 pieces leadshine dm542-05 1a - 4.2a 20-50vdc for nema 17 nema 23 42 57 stepper motor 25000 pulse per rev ing

the dual voltage driven power interface is shown in figure 4. the basic idea of dual voltage driving is to drive with a lower voltage ul at a lower (lower frequency band) and a higher voltage uh at a high speed (high frequency band). this power interface requires two control signals, uh is the high voltage effective control signal, and u is the pulse width adjustment drive control signal.