Allegro 電流センサー
高効率・高電圧設計向けの高精度電流検出
Allegroの電流センサは、ガルバニック絶縁、無損失動作、高精度を実現し、コンパクトなシステムで最高の効率と電力密度を可能にします。EVのトラクションインバータおよび補助インバータ、DC-DCコンバータ、オンボードチャージャ、ソーラーインバータ、産業用電源システム向けに設計された当社のソリューションは、最大5 kVRMSの絶縁定格、最小0.1 mΩの超低導体抵抗、およびGaN/SiCパワーエレクトロニクスに対応する最大5 MHzの帯域幅を提供します。
Documentation & Resources
Application Note
Crosstalk Error Estimation and Reduction Through Busbar Design for the ACS37610 Coreless Current Sensor
This application note can be used to estimate the crosstalk error for adjacent notched busbars in combination with the ACS37610 coreless differential Hall sensor. This information can be useful when designing, for example, the three phases of a traction inverter.
Guide
CT430-20AC Evaluation Board User Guide
The CT430 is a high bandwidth and ultralow-noise integrated contact current sensor that uses Allegro patented XtremeSense™ tunnel magnetoresistance (TMR) technology.
Brochure
Enhancing Robotic Design
With the continuously evolving robotic market and formation of new applications, there is a need for higher levels of system accuracy and reliability.
Guide
CT427-20AC Evaluation Board User Guide
The Allegro MicroSystems CTD427-20AC evaluation board contains the CT427—XtremeSense™ tunnel magnetoresistance (TMR) integrated circuit (IC).
Guide
CT220RMV-IS5 PT-15 Evaluation Board User Guide
The CTD221-PT-15 evaluation board is designed to demonstrate the current sensing capabilities of the CT220 linear magnetic sensor from Allegro MicroSystems.
Application Note
Grounding Techniques for the ACS37800, Allegro's Power Monitoring IC: Ensuring Proper Device Functionality and Measurement Accuracy
The ACS37800 is a highly versatile and integrated power monitoring IC designed for accurate power measurement in both AC and DC applications
Guide
ACS37630 Evaluation Board User Guide
This user guide documents the features, operation, and use of the ACS37630 current sensor with the ASEK37630 evaluation board.
Application Note
CT41x/CT42x Design Considerations
The objective of this document is to help design engineers implement and use the new Allegro MicroSystems XtremeSense™ TMR-technology-based CT41x and CT42x integrated contact current sensors in their designs.
Guide
CT431-50AC Evaluation Board User Guide
The CT431 is a high bandwidth and ultralow-noise integrated contact current sensor that uses Allegro patented XtremeSense™ tunnel magnetoresistance (TMR) technology.
Application Note
Convenient and Isolated Power Measurements via SPI or I2C using ACS71020 or ACS37800 Power Monitoring ICs
AN296180 - This application note describes the I2C and SPI interfaces on the ACS71020/ACS37800 Power Monitoring ICs from Allegro MicroSystems.
Brochure
Brochure: Innovative Current Sensor ICs
Allegro MicroSystems has been driving innovation in the current sensor industry for more than 17 years, with a history of first-to-market products that give our customers a competitive edge. Our advanced ICs help you achieve higher efficiency and power density in your designs.
Application Note
I2C Addressing and Fault Monitoring Using The ACS71020 or ACS37800 Power Monitoring IC Digital Input Output Pins
AN296172 - This application note describes methods of setting the I2C slave address of the ACS71020/ACS37800 and the added functionality of the digital input-output (DIO) pins when operating in I2C mode.
Application Note
Hysteresis Offset Error In Hall-Effect Current Sensors Using Soft Ferromagnetic Concentrator Cores
AN296182 - When measuring busbar current with a surrounding soft ferromagnetic concentrator cores, Allegro recommends using a linear IC, such as the A1365, A1367, or ACS70310, in conjunction with a ferromagnetic core for high-current measurement (above 200 A).
Application Note
Understanding Linearity Error for the ACS70310 Above 2000 G
AN296206 - The goal of this application note is to illustrate and discuss the linearity error of the ACS70310 when sensing fields greater than 2000 G.
Application Note
ACS37610 Busbar Geometry and Design Techniques for Coreless Differential Current Sensors
AN296194 - The purpose of this application note is to offer guidelines for selecting the optimum combination of ACS37610 and busbar geometry for a given current sensor application and its specific requirements.