步进电机驱动器

This paper will focus on the basics of the sensorless control algorithm, the advantages of different sensing techniques, and how the GUI can drive a full-featured sensorless sinusoidal BLDC motor with no software programming required.

AN295015 - Allegro MicroSystems’ stepper motor ICs are power ICs encapsulated in DIP (dual in-line), SOIC (small outline integrated circuit), and PLCC (plastic leaded chip carrier) packages. The silicon die is directly bonded to a heat-spreading lead frame (batwing).

With decades of experience, our embedded motion control algorithms in our motor driver ICs simplify designs while improving motor performance and time to market. Download brochure to learn more.

Achieve all of your design goals for voltage and power levels with a single-platform architecture by combining Allegro drivers, sensors, and regulators.

This report outlines hot-swap test results for A5977 and A5979 stepper motor drivers. To duplicate the hot-swap conditions, we have selected an IC motor supply voltage (VBB) of 24 V and motor current of 1.5 A per winding for our tests.

Many applications require reliable detection of reaching a mechanical endpoint without using an external sensor, and motor stall detection can be used instead. This article describes an innovative method of small stepper motor stall detection and its application.

Stepper motors offer unique advantages over direct current (DC) and brushless DC (BLDC) motors in many applications. A bipolar stepper provides accurate open-loop position as well as zero-speed torque without using a control loop or external sensors.