SI-7500 Overview
5-phase Stepper Motor Star Connection Unipolar Driver IC SI-7500A s Ratings rating Type No. SI-7500A (µ s) Ttrig min typ 1.0 2.0 s Block diagram Main power supply VCC Auxiliary power supply Vb Variable current resistor Excitation signal 2-3 phase excitation Reference voltage parator amplifier Current controller Excitation signal amplifier Zener diode for canceling counter EMF ZD Rx Trigger pulse generator circuit M...