Abstract : This paper proposes a linear motor position servo system based on a digital signal processor (DSP). The system fully utilizes the rich peripheral interfaces and high computing speed of the DSP, simplifying the designed system hardware and implementing state feedback control. Experimental results show that the system has a compact structure and good dynamic and static characteristics. Keywords : Digital signal processor; Linear motor; Position servo 1 Introduction The linear motor, as an electromechanical system, simplifies the mechanical structure while complicating the electrical control, conforming to the development trend of modern electromechanical technology. Its greatest feature is meeting the higher requirements for the servo performance of machine tool feed systems: high driving capability, fast feed speed, and extremely high rapid positioning accuracy. Compared with traditional mechanical structures (i.e., rotary motor + ball screw and other intermediate links), the linear motor no longer simply adds mechanical transformation links to the rotational motion of the rotary motor to obtain the final linear motion. It overcomes the shortcomings of traditional systems, such as feed speed of 90-120m/min, maximum acceleration of only 15g, and elastic deformation, friction, backlash, and nonlinear errors in mechanical components. Linear motors, as one of the key technologies of fourth-generation machine tools, can effectively perform "direct drive" and are therefore widely used. In high-precision micro-feed CNC machine tool servo drive systems, the control requirements for linear motors are very high. A suitable control algorithm can well meet the requirements of servo control. However, traditional motor control often uses microcontrollers, which are limited by CPU processing speed, resulting in high costs and difficulty in implementing many complex algorithms. In the 1990s, DSP technology saw remarkable development, reflected in the continuous improvement of DSP performance and specifications, and its increasingly wider application areas. Compared with traditional microprocessors, it offers a better performance-price ratio, higher processing speed and capabilities, and is a computationally intensive rather than a resource-intensive device. With technological advancements and price reductions, new application areas are constantly emerging. This paper uses the high-speed motor control chip TMS320F240 from TI (Texas Instruments) to construct a linear motor servo control experimental system, presents the system closed-loop control structure block diagram, and introduces the system control method and DSP hardware implementation circuit. [b][align=center]For more details, please click: DSP-based Linear Motor Position Servo System[/align][/b]