in our current control of the stepper motor, mainly by the decentralized device consisting of ring pulse distributor and software ring pulse distributor, there is a dedicated integrated chip ring pulse distributor.
So we choose the third option, go directly to the PMM8713 phase or four phase step motor pulse distributor, there is SI-7300A phase or four phase power drive, so you can go to the four phase stepper motor driver circuit, at the same time

To improve the integration and reliability, the main PMM8713 is Japan's SANYO Motor Company production of stepping motor pulse distributor, which is mainly applicable to the control of three-phase or four phase stepper motor, then control the three-phase or four phase stepper motor can choose 3 excitation modes.
As a result of each phase is the minimum current of 20mA inhalation and pull out, it not only meet the level of the power amplifier the input requirements but also in all its input terminals are embedded in Schmidt trigger circuit, which will have strong anti-interference ability, so the stepper motor driver

In the circuit we can be divided into voltage and current of the two driving way, then the current driving mode is the most commonly used is the PWM constant current chopper drive circuit, is our most commonly used high performance drive mode, the drive circuit is mainly used for CNC plasma cutting machine control system of the arc voltage.

The motor is in the system is a 42BYG009 type hybrid stepping motor above, then the drive voltage is DC 24V, we also proved the stepper motor driver circuit power control system has the advantages of simple structure, stable performance, and the work efficiency is very high, at the same time, the moment

Frequency characteristic is very good, we can be widely used in small electromechanical integration equipment inside.