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OnDemand Webinar

Magnetic Sensing: Maximizing Battery Life in Industrial and Consumer Applications

Join our webinar for a refresher on magnetic sensing technologies and an exploration of the latest technical innovations aimed at reducing power consumption in these versatile, reliable, and high-performance solid-state sensors.

Blog

Switches vs. Latches: Understanding the Key Differences and Their Applications

Discover how Hall-effect switches and latches, essential magnetic sensors, power smartphones, industrial equipment, automotive systems, and DC motors. Learn their differences and applications in this insightful blog post.

Application Note

Two-and-Three-Wire-Sensor-Interfaces

AN296233 - Electrical interfaces for active sensor integrated circuits (ICs) include both two-wire and three-wire interfaces. These two technology styles are named for the number of required connections needed to communicate the sensor output. This application note discusses use and tradeoffs of both interface styles.

Blog

The Power of Precision: Revolutionizing Switches and Latches with TMR Technology

This blog explores the benefits of TMR technology for switches and latches, highlighting how it's transforming these essential components.

Improved Speed and Direction Sensing Using Vertical Hall Technology

The A1262 2D dual-channel Hall-effect sensor IC is offered in a 5-pin SOT23W surface-mount package, as well as a 4-pin SIP through-hole package. It features operation with traditional planar—as well as vertical—magnetic field direction.

Digital Position Sensor ICs—Continuous-Time to Chopper-Stabilized Cross-Reference Guide 

This application guide will outline the differences between the two sensor types and provide system designers with the tools needed in order to select the appropriate sensor for their system.

Vehicle Safety Systems

Occupant safety is one of the most critical elements of the automobile design. As a result, safety systems continue to become more sophisticated in order to limit, and ultimately prevent, personal injury in the case of an accident.

Ring Magnet Speed Sensing for Electronic Power Steering

Proper control of Electric Power Steering (EPS) systems requires both speed and direction information from the steering input shaft. This control will typically come from both high-resolution speed information and fairly coarse position information.

Programming a Back Biased Switch for Proximity Sensing

This application note assumes the user is programming an Allegro fully integrated back biased Hall effect switch or that the user has designed an appropriate magnetic circuit to accommodate the programming range of a programmable unipolar Hall effect switch.

Air-Gap-Independent Speed and Direction Sensing Using the Allegro A1262

The A1262 integrated circuit is an ultrasensitive dual-channel Hall-effect latch. As with conventional dual-channel latches, the quadrature outputs of the A1262 indicate rotation direction and position/speed of a rotating ring magnet target.

Micro-Power Position Sensing in Cell Phone Applications

This note will show how to use the Allegro™ A1171 in a standard flip or slide phone, as well as techniques for sensing three positions using only one magnet and one Hall device in a multipurpose application.

Latching Switch Hall-Effect IC Basics

There are four general categories of Hall-effect IC devices that provide a digital output: unipolar switches, bipolar switches, omnipolar switches, and latches. Latching Hall-effect sensor ICs, often referred to as "latches," are digital output Hall-effect switches that latch output states.

Application Note

The Role of Sensors in Electric Bicycles: A Comprehensive Guide

An electric bicycle, commonly known as an e-bike, is a bicycle equipped with an electric motor and battery to assist with pedaling. The rapid market growth of the e-bike is attributed to its clear advantages.

Guide

APS11900 Programming Guide

This document describes two approaches to programming the APS11900 and should be used as a companion to the product datasheet.

Application Note

Introduction to Hall-Effect Switches and Conversion from Mechanical Switches

AN296192 - This application note will discuss the technical considerations necessary to aid with the replacement of an on/off mechanical switch with a Hall-effect switch.