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allegromicrosystems

Magnetic gear tooth sensor IC optimized for traction motor apps

November 19, 2019 By Aimee Kalnoskas

Allegro MicroSystems announced the launch of the ATS17501, the industry’s first gear tooth sensor IC designed to provide incremental position for electric vehicle traction motors operating up to 30k RPM. The device addresses engineers’ most pressing traction motor challenges—including vibration at startup and running mode, high rotational speed, mechanical space constraints, high operating temperatures, and ISO 26262 safety requirements. Market-leading features include: High speed switching up […]

Filed Under: Microcontroller Tips Tagged With: allegromicrosystems

Ultra-low current, low EMI DC/DC regulator optimized for keep-alive supply apps

November 14, 2019 By Aimee Kalnoskas Leave a Comment

Allegro MicroSystems announced the launch of the ARG81800—a robust, ultra-low Iq, low EMI DC/DC regulator ideal for keep-alive supply applications. The device sets a new standard, introducing features that help engineers easily achieve tightening OEM standards, such as: Ultra-low quiescent current mode 150°C operating temperature – for demanding automotive or industrial operating conditions Pin open/short […]

Filed Under: Power Electronic Tips Tagged With: allegromicrosystems

Three-phase BLDC driver integrates power loss brake

November 12, 2019 By Aimee Kalnoskas Leave a Comment

Allegro MicroSystems announced the launch of the world’s first three-phase BLDC driver IC with integrated power loss brake (PLB) features. The A89331 code-free, sinusoidal sensorless fan driver is designed to improve thermal efficiency, which reduces energy use and data center costs. The new PLB features also improve safety and reduce the bill of materials (BoM) […]

Filed Under: Power Electronic Tips Tagged With: allegromicrosystems

Surface-mount current sensors handle up to 400 A

November 7, 2019 By Aimee Kalnoskas Leave a Comment

Allegro MicroSystems announced significant ease-of-use enhancements to its popular high current fully integrated ACS772/3 current sensor “CB” package family. These industry-leading, automotive-grade high voltage isolation current sensors already provide economical and precise solutions for both AC and DC current sensing up to 400A. Building on that leadership and deep customer-understanding, Allegro’s new surface-mount leadform option for […]

Filed Under: Power Electronic Tips Tagged With: allegromicrosystems

How GMR wheel speed sensors help advance vehicle control and braking systems

August 13, 2019 By Lee Teschler Leave a Comment

Giant magnetoresistance sensors are strong candidates for the high-accuracy wheel-speed sensing necessary in autonomous vehicle systems. Christine Graham | Allegro MicroSystems The purpose of a braking system has evolved from simplistic stopping to critical functions in vehicle safety through highly accurate feedback to traction control (TCS) and advanced driver assistance systems (ADAS). These advances have […]

Filed Under: FAQ, Featured, Microcontroller Tips Tagged With: allegromicrosystems, FAQ

Code-free FOC BLDC motor drivers target fan, cooling apps

January 29, 2019 By Aimee Kalnoskas Leave a Comment

Allegro MicroSystems announced the launch of the company’s QuietMotion family. This family consists of the first-to-market Field Oriented Control (FOC) brushless DC (BLDC) electric motor controllers that are customer code-free. The devices are designed to provide reliable and efficient low audible noise performance while reducing design cycle time. Whereas most FOC BLDC drivers require software developers to […]

Filed Under: Power Electronic Tips Tagged With: allegromicrosystems

Advanced transmission speed sensor ICs designed to certified ISO 26262

January 16, 2019 By Aimee Kalnoskas Leave a Comment

Allegro MicroSystems has announced the release of its most advanced transmission speed sensor family members, complete with ASIL B certification. The A19520, A19530, and A19570 magnetic sensor ICs are the product of nearly 20 years of application-specific experience and technological advancement—including GMR and Hall effect technology—making them ideal for meeting the demanding requirements of today’s transmission applications. The A19520, […]

Filed Under: Uncategorized Tagged With: allegromicrosystems

Hall effect IC obtains speed and duty cycle information in position and timing apps

November 26, 2018 By Aimee Kalnoskas Leave a Comment

Allegro MicroSystems announced the A17301, a new Hall effect sensor IC ideal for two-wheeled vehicles, particularly in position and timing applications like speedometers and tachometers for engine control. Integrating electromagnetic capability (EMC) components into a small SIP package, the A17301 is a robust solution for digital ring-magnet sensing or ferromagnetic target sensing when coupled with a […]

Filed Under: Uncategorized Tagged With: allegromicrosystems

Top power electronics stories of 2017

December 31, 2017 By Aimee Kalnoskas Leave a Comment

Here are the power electronics features that got the most interest from readers in 2017.         Teardown: Inside Ikea’s smart LED bulb As smart LED bulbs go, this one is pretty simple. It doesn’t incorporate any sort of smartphone app and can’t be controlled over the Internet, like some other smart bulbs […]

Filed Under: Featured, Power Electronic Tips Tagged With: allegromicrosystems, infineontechnologies, onsemiconductor, texasinstrumentsinc

Secrets of measuring currents above 50 amps

March 6, 2017 By Lee Teschler

There is an art to getting accurate readings of high current values. It pays to know a few of the tricks. GEORGES EL BACHA, EVAN SHORMAN, HARRY CHANDRA | ALLEGRO MICROSYSTEMS LLC IT CAN BE CHALLENGING to sense currents exceeding 50 A because the task often involves thermal management, must take place in a limited […]

Power Electronic Tips

Filed Under: Featured, Power Electronic Tips Tagged With: allegromicrosystems

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