TMS570处理器NHET功能的直流无刷电机测速设计

Brushless DC Motor Speed Measurement Based on TMS570 Processor's NHET Function

介绍了一种基于TMS570处理器NHET功能的直流无刷电机测速方案,通过测量HALL信号周期,计算电机转速,在测速软件设计过程中采用IIR低通滤波、N版本程序设计,保证测速软件的正确性和可靠性。本文对该方案的原理、软件设计进行了详细论述,并进行了实际应用,结果表明该测速方案正确、可靠。

A scheme of the brushless DC motor speed measurement based on TMS570 processor＇s NHET function is introduced, which can calculate motor speed through measuring the HALL signal cycle. IIR low-pass filtering algorithm and N-version programming are used in the so{tware design to ensure correct and reliable of the software. The working principle, software design are introduced in detail. The scheme works correctly and reliably in real application.