角位置传感器 IC
Allegro 的 2D 角度传感器可提供模拟和超低延迟(~10 µs)的数字输出,以实现汽车、工业和机器人应用中的精确电机控制。我们的传感器符合 ASIL-D 标准、支持双芯片冗余以及低至 ±0.3° 的角度精度,可确保平稳、高效和可靠的运行。
Featured Products
A33020
The A33020 is a stray field immune, 360° angle sensor IC that provides high-resolution angular position information based on magnetic sensing technology.
A33110
Precision TMR Angle Sensor with Integrated Diagnostics
AAS33001
Precision Angle Sensor IC with Incremental and Motor Commutation Outputs and On-Chip Linearization
CT310
The CT310 is a 2D angular sensor in a dual full-bridge configuration.
Documentation & Resources
Application Note
Two-Point-Programming for the A1330
AN296199 - This application note serves as a guide for using a two-point programming algorithm to calculate and program the values needed for short-stroke rotational position sensing with the A1330 angle sensor IC.
Application Note
Angle Error Correction with the A33230
This application note describes the mathematics to convert the analog sine/cosine outputs of the A33230 into an angular position.
Application Note
Using the A1335 in a Short Stroke Application
AN296166 - This application note is dedicated to short-stroke magnetic applications using Allegro angular position sensors based on circular vertical Hall (CVH) technology. Analyses and data used in this document are based on the A1335 angle sensor IC.
Application Note
A1337/A1338 System Timing
AN296138 - The A1337 and A1338 are high-speed high-accuracy magnetic angle sensor ICs, ideal for motor position sensing. This application note provides a brief description of the internal signal processing delays of the A1337 and A1338 angle sensors.
Application Note
Output Protocols for Angle and Linear Position Sensors
AN296191 - This application note describes working principles, lists advantages and limitations, outlines communication rates/delays, and defines error reporting tactics for digital and analog protocols used in angle and linear position sensing.
Application Note
Advanced On-Chip Linearization in the A1335 Angle Sensor IC
AN296127 - This document shows how magnetic-input-related errors in excess of ±20 degrees can be linearized by the A1335 to as low as ±0.3 degrees—roughly a 65× improvement.
Brochure
Brochure: Motor Position and Angle Sensing
The Allegro A33230 Hall-effect position and angle sensor IC is the smallest 3D Sine/Cosine sensor currently available in the market.
Application Note
Microcontroller-Based Linearization of Angular Sensor ICs
AN296160 - Magnetic angle sensors are often a good choice for fast, reliable, contactless measurement of the angular position of a system, especially in dirty environments where optical encoders may not be a good fit.
Technical Article
How Hardware Selection Impacts Driver Experience in EPS Systems
P0234: Electric power steering systems have become popular in automotive manufacturing, displacing their mechanical counterparts because they save space, weight, emissions, and reduce fit complexity.