Allegro 为办公自动化、工业和汽车应用提供全面的步进电机驱动器系列。
我们的先进技术 QuietStepTM 采用专有算法，通过减小扭矩纹波和电流失真来尽可能地降低步进电机设计中的噪声和振动。QuietStep 在 PWM 周期内即时调整快速衰减量，以在各种工作条件下将电流纹波保持在低水平。该自适应功能提高了系统的性能，从而降低可闻电机噪声、降低振动并提高步进精度。
Stepper Motor Driver IC with Single-Step Control and Adjustable Microstep Resolution for Fine Positioning and Programmable Motion Control
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DMOS Microstepping Driver with Translator and Overcurrent Protection (OCP)
Quad DMOS Full-Bridge PWM Motor Driver
Technical Article
April 26, 2021
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.
Application Note
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.
Brochure
Achieve all of your design goals for voltage and power levels with a single-platform architecture by combining Allegro drivers, sensors, and regulators.
Whitepaper
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.
