Allegro 電流センサー
Allegro は、20 年近くにわたり、電流センサー業界において市場に最初に製品を投入することでイノベーションを促進し、お客様に競争上の優位性を提供してきた実績を誇ります。当社の高度な IC は、お客様の設計においてより高い効率性と出力密度を実現するうえで役立ちます。当社の完全な統合ソリューションは、設計を容易にします。
当社の電気自動車用メイン走行モーターおよび補助インバータは市場をリードしています。また、OEM は DC-DC コンバータおよびオンボード充電器などの用途で Allegro に信頼を寄せています。
また当社は、住宅用および産業用の太陽光インバータ用途に最適な業界をリードする最大 1100Vrms の絶縁定格により高電圧用途を得意としています。
機能およびイノベーション
DC 使用電圧
当社のパッケージは競合製品を凌ぐ最大の使用電圧を SOIC-16 フットプリントで提供します。
過電流検出機能
Allegro の電流センサーは高精度アナログ出力に加え高速過電流検出機能を搭載しています。
大きな電流トランスに取って代わる高速センサー
大きな電流トランス (CT) に取って代わり、スマートな内蔵型高速センサーが搭載されています。
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Featured Products
ACS37220
The ACS37220 simplifies high-current sensing in automotive applications, offering ultra-low resistance (<100µΩ) for improved efficiency.
CT455
The CT455 is a high bandwidth and low noise integrated contactless current sensor that enables high accuracy current measurements.
ACS37610
The ACS37610 is a truly coreless, high precision, Hall-Effect current sensor with common-mode field rejection and high bandwidth ideal for electric vehicle (EV) applications.
ACS37041 and ACS37042
ACS37041 and ACS37042 are fully integrated Hall-effect-based current sensor ICs that provide a galvanically isolated voltage output proportional to the sensed current.
Documentation & Resources
Blog
Current Sensors in Robotics: Precision, Efficiency, and Safety in Every Movement New
The world of robotics is rapidly evolving. We marvel at robotic arms assembling intricate electronics with superhuman precision, surgical robots performing minimally invasive procedures with unparalleled dexterity, and autonomous vehicles navigating complex environments with seemingly effortless grace.
Technical Article
Solving EV Charging with High-Performance Gate Drivers and Current Sensors
Before EVs can reach true widespread adoption, one of the biggest obstacles is the accessibility, reliability and performance of EV chargers.
Technical Article
Rethink PCB Current Sensing
This article will discuss two new innovative approaches to measure currents up to 600 A in PCB: a near-lossless Hall-based current sensor with an integrated conductor and a non-invasive standalone core-free and shield-free differential Hall current sensor.
Technical Article
New 400 kHz Current Sensors Enable More Sustainable Designs in Switch-Mode Power Designs
Really Cool. Really Efficient. New 400 kHz current sensors enable more sustainable designs in switch-mode power designs.
Technical Article
Solar Energy Systems – New Market Trends in Current Sensing
P0103 - As solar installations grow larger and more ambitious by the day, new trends in current sensing are emerging for this expanding energy market.
Application Note
CMTI Comparison for Allegro Integrated Conductor Current Sensors
Common-mode transient immunity (CMTI) test injects transient voltages with high slew rates across the isolation barrier of the current sensor. During the transient event, the output stability of the device is observed.
Blog
Magnetic Sensors are a Great Alternative to Traditional Shunt Resistors for Industrial Current Sensing
Magnetic sensors have entered the market, bringing a whole new level of performance, safety, and reliability to the table, much like what Allegro is doing with our current sensor portfolio. So, what makes them so special? Let's discuss.
Brochure
Brochure: Lift Designs to the Next Level
Drive mobile robots with unmatched precision and control.
Video
XtremeSense™ TMR Technology
Allegro MicroSystems empowers engineers to deliver top-tier solutions with XtremeSense™ TMR technology, enabling industry-leading precision and cost efficiency in current and position sensors.
Application Note
ACS37030/2 High Bandwidth 5 MHz Current Sensor Enables High-Speed Control and Protection in Power Converter Applications
The ACS37030/2 is the first integrated 5 MHz bandwidth current sensor, which enables these systems to extract more benefit from faster and lowerloss switches.
Application Note
An Effective Method for Characterizing System Bandwidth in Complex Current Sensor Applications
This application note describes multiple methods for measuring
and characterizing system bandwidth, with a focus on
the impulse response method. Allegro’s ACS720 is the perfect device to validate the test methods outlined here.
Application Note
High-Current Measurement with Allegro Current Sensor IC and Ferromagnetic Core: Impact of Eddy Currents
AN296162 - The technique of measuring bus bar current with a surrounding ferromagnetic core is common knowledge. For highcurrent measurement above 200 A, Allegro recommends using a linear IC of the A136x family
Technical Article
Allegro is Driving the Future with Reliable eMobility Solutions
Techmezine speaks with Andreas P. Friedrich on Allegro’s Battery Management Solutions and latest innovation for EV.
Application Note
Increasing System Safety using the A1365 Programmable Linear Hall-Effect Sensor IC with Self-Test Diagnostic Mode
As safety goals multiply throughout the system design process, customers demand smart sensors that can be used to diagnose abnormalities in a system. The built-in Self-Test mode of the A1365 grants users such insight into their systems.
Brochure
Brochure: Industry's First ASIL-C Field Current Sensor for eMobility
The ACS37601 is Allegro’s latest and most advanced linear Hall-effect sensor IC for core-based current sensing, developed in accordance with the ISO 26262 functional safety standard to achieve an ASIL C safety rating.