High-precision five-phase stepping motor driving and controlling device and method

Abstract

The invention relates to a high-precision five-phase stepping motor driving and controlling device and method. Through the high-precision five-phase stepping motor driving and controlling device provided by the invention, the precise driving and control of a five-phase stepping motor is completed, and a low-cost precise application scene for realizing the five-phase stepping motor can achieve highprecision and high stability requirements. The high-precision five-phase stepping motor driving and controlling device mainly comprises an upper PC, a serial port communication circuit, a single chipmicrocomputer circuit, a high-speed optical coupling isolation circuit, an MOSFET high-side / low-side driving circuit and an MOSFET circuit; the upper PC is connected with the single chip microcomputer circuit through the serial port communication circuit; the single chip microcomputer circuit sends a power-on phase sequence signal to the MOSFET high-side / low-side driving circuit after passing through the high-speed isolation circuit; the MOSFET high-side / low-side driving circuit is connected with the MOSFET circuit; and the MOSFET circuit is connected to each winding inside the five-phase stepping motor to be controlled.

Description

technical field [0001] The invention belongs to the field of stepping motor drive and control, and relates to a high-precision five-phase stepping motor drive and control device and method. [0002] In particular, it relates to a kind of high-side and low-side drive of isolated control MOSFET based on single-chip microcomputer to generate precise power-on sequence to realize the precise operation of five-phase stepping motor, and use PWM method to adjust the winding current of the motor to adapt to different motors or different loads. A program-controlled high-precision five-phase stepping motor drive and control device and method with overcurrent protection measures and subdivision functions. Background technique [0003] Because stepper motors have the characteristics of low speed, high torque, high precision and no accumulation of errors, they are often used in precision control occasions. Compared with two-phase, three-phase and four-phase stepper motors, five-phase step...

AI Technical Summary

Problems solved by technology

[0009] 1. The drive mainly relies on imports, and the cost of system product development is relatively high;

[0010] 2. The existing driver-related chips that can be purchased are all imported, and the purchase channels are limited, so it is difficult to purchase in large quantities; at the same time, the drive circuits completed by the available driver-related chips have low precision and poor low-speed stability, submerging the five-phase motor. Application advantage

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