
3 次元磁気ポジション センサー
平面および垂直ホール技術における当社の幅広い専門知識を組み合わせた Allegro 3DMAG™ ポジション センサーは、堅牢で高性能な真の 3 次元磁気センシング ソリューションです。 これらのセンサーは、広範囲の非接触モーション検出を可能にし、ほぼすべての稼動磁石システムと連携して、磁気設計とシステム統合を簡素化します。
Allegro 3DMAG™センサーは次のメリットを提供します。
- 比類ない設計の柔軟性: 対象範囲が広いため、3DMAG センサーを機械的に便利な場所に配置し、目的の軸を選択して、測定する必要があるモーションをセンシングできます。
- シンプルな使用方法とプログラミング: シンプルなアナログ出力から完全な統合デジタル インターフェイスまで、さまざまな出力プロトコルを使用できる 3DMAG センサーは、回転モーションまたは直線モーションをセンシングできます。 それらのセンサーは、飽和することなく高い磁場で動作し、オンチップのコンセントレーターを排除し、複数のインターフェイスを介して直接プログラミングできます。
- 安全性の向上: 3DMAG センサーは、安全性が重視される自動車用途の厳しい要件を満たすために必要な測定の精度と性能を提供します。 優れた精度とオンチップの診断機能により、自動運転車と運転支援車のドライバー、同乗者、および公共の安全性を向上させるために役立ちます。
自動車、工業、コンシューマー用途向けの比類ない設計の柔軟性を備えた 3DMAG センサーはあらゆる角度をカバーしています。
3 次元磁気ポジション センサー IC 選択ガイド
設計リソース

Application Note
Achieving Fast SENT Message Response with A1346 Linear Hall-Effect Sensor ICs on Shared Bus
AN296131 - In safety-critical magnetic sensing applications, such as torque sensing in electronic power steering (EPS) modules, redundant sensors are often the approach used to achieve desired performance while maintaining strict safety requirements.

Application Note
Joystick with Allegro Position Sensor IC
Joysticks are widely used human-machine interfaces (HMI) that simultaneously report information on direction and amplitude. This document explains how to implement a 2D or 3D magnetic sensor to obtain a joystick with well-defined behavior.

Application Note
Signal Path Delay for A31315 3D Sensor
AN296263 - The delay in a signal path can be described as the trail between the real-time angle and the displayed output angle. This delay represents the time needed to convert the magnetic field data sensed by the Hall plates into angle information.

Brochure
3DMAG Position Sensors
Combining our proven planar and vertical Hall technologies, 3DMAG solutions offer robust, high-performing, three-axis magnetic field measurements in a single IC.

Application Note
3D Hall-Effect Sensor Magnetic Tamper Detection Smart Home Systems
AN296223 - The experiment results highlight several advantages of 3D Hall-effect sensors such as their ability to detect strong magnetic fields that are randomly applied to the outside of a smart home device.

Technical Article
Enhancing Smart Home Security with 3D Magnetic Sensors
P0173 - As consumers find new ways to outfit their living spaces with simple-to-use smart home and Internet of Things (IoT) products, they may be unaware of certain vulnerabilities and security features.

Application Note
3D Linear or 2D Angle Sensing with the ALS31300 and ALS31313 Hall-Effect ICs
AN296140 - This application note describes the use of the ALS31300 and ALS31313 3D Linear Hall-Effect Sensor integrated circuits (ICs) from Allegro MicroSystems for 3D linear sensing and 2D angle sensing applications.

Application Note
Position and Level Sensing Using Hall-Effect Sensing Technology
This paper introduces Hall-effect technology, then explores how it has been applied, in particular, differentiating between the primary types of Hall sensor ICs and the highly differentiated range of sensing behaviors they can support.

Application Note
Advanced Power Management Using the ALS31300 and ALS31313 3D Hall-Effect Sensor ICs with I2C Output
AN296144 - This application note discusses the unique and advanced low power modes available on the ALS31300 and ALS31313 3D Linear Hall-Effect Sensor ICs with I2C output available from Allegro MicroSystems.

Application Note
Chopper-Stabilized Amplifiers With Track-and-Hold Signal Demodulator
The conventional signal demodulator of a chopper amplifier can be substituted by track-and-hold (T/H) and averaging functions. This arrangement provides offset cancellation without requiring low-pass filters and can ignore the residual offset generated by input spikes.

Application Note
Analysis of a Hall-Effect System With Two Linear Sensor ICs for 30 mm Displacement
In this application note we are investigating how to extend the displacement range for linear detection by using two sensor ICs, using typical Allegro™ MicroSystems devices as examples.

Application Note
Guidelines for Using Allegro Angular Sensors
Many applications in different industries, such as in industrial automation and automotive sensors and actuators, require monitoring the angle of a rotating shaft either in an on-axis or off-axis arrangement. This application note is dedicated to a review of on-axis magnetic applications.

Application Note
Bipolar Switch Hall-Effect ICs
Bipolar sensor ICs are designed to be sensitive switches. (Note that the term "bipolar" refers to magnetic polarities, and is not related to bipolar semiconductor chip structures.) Hall measurement, bipolar switching, hall switch.

Application Note
Unipolar Hall-Effect Sensor 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. Unipolar switches are described in this application note.

Application Note
Omnipolar 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. Omnipolar switches are described in this application note.