Core Application丨Application of HXS320F28027PTT in Brushless DC Motor Driver

introduction

With the development of power electronics technology, new permanent magnet materials and DSP (digital signal processor) with fast computing capability, the application of brushless DC motors is becoming more and more popular. Brushless DC motors have excellent speed regulation performance similar to DC motors, and overcome the shortcomings of commutation sparks and low reliability caused by the mechanical commutation device of DC motors. They have the advantages of small size, light weight, high efficiency, and flexible shape and size of the motor. Therefore, they are widely used in servo systems, CNC machine tools, electric vehicles and household appliances, and have become the main direction of modern servo technology.

Introduction to DSP

DSP (Digital Signal Processing) is digital signal processing technology, and DSP chip refers to the chip that can realize digital signal processing technology. The DSP chip adopts Harvard structure with separate program and data, has a special hardware multiplier, widely adopts pipeline operation, and provides special DSP instructions, which can be used to quickly implement various digital signal processing algorithms. In today's digital era, DSP has become a basic device in the fields of communications, computers, consumer electronics, etc.

The birth of DSP chips is a necessity of the times. Since the 1960s, with the rapid development of computers and information technology, digital signal processing technology has emerged and developed rapidly. Before the emergence of DSP chips, digital signal processing could only be completed by microprocessors. However, due to the low processing speed of microprocessors, they could not meet the high-speed real-time requirements of increasing amounts of information. Therefore, the application of faster and more efficient signal processing methods has become an increasingly urgent social need.

Application Cases

Spark Automation uses the industrial-grade high-reliability and high-performance HXS320F28027PTT chip as the main control chip, and uses a unique control algorithm to achieve a low-voltage DC brushless driver. It is suitable for low-voltage DC brushless motors with a power of less than 500W. The product has a stable speed, strong resistance to load fluctuations, high output, integrated overvoltage, undervoltage, overcurrent, stall and other protection methods, and has the characteristics of small size, low heat generation, high reliability, long life, and easy use. It is suitable for various industries such as industrial robots, lathe equipment, and medical treatment.

Zhongke Haoxin BLDC brushless DC motor solution

Advantages of brushless DC motor solution application:

Wide speed regulation range, capable of high-speed operation;

Good load regulation performance and small speed fluctuation;

The limit torque is large and can meet the requirements of heavy load applications.

About HXS320F28027PTT chip