Efficiency and Renewables
How to Overcome the Challenges of Next-Generation Energy Systems
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Clean Energy and Cloud Infrastructure
Dive into the core of innovation with Allegro! We’re not just about technology; we’re about sparking a revolution for a safer, greener tomorrow. Our cutting-edge power and sensing solutions are the building blocks of a cleaner world, powering everything from solar inverters and EV chargers to energy storage systems and heat pumps with unmatched efficiency, reliability, and simplicity.
Imagine a world where solar systems and heat pumps work at their peak, where EV charging and energy storage are not just ideas but affordable realities shaping our future. That’s the world Allegro is creating with our groundbreaking strides in current sensing, isolated gate drivers, and motor drivers. We’re making efficient technology integration a breeze and future-proofing our world, one innovation at a time.
Our sleek integrated circuits are game changers, integrating effortlessly to streamline design and supercharge energy transfer and conversion, all while minimizing power loss. This means getting your projects off the ground faster, with lower costs and a smaller footprint.
Join forces with Allegro and be at the forefront of the sustainable revolution. Discover our solutions to build a vibrant, sustainable future together. The future is promising with Allegro!
Browse by application
EVCI
Support fast, efficient EV charging with Allegro’s high-accuracy magnetic current sensors and isolated gate drivers that deliver lower power loss, faster response, and higher power density in compact form factors.
Data Center
Allegro delivers compact, high-performance solutions for power supply, power distribution and thermal management.
Solar Energy
Allegro’s high-voltage current sensors enable safe, efficient solar power conversion—supporting the growing demand for clean energy.
Energy Storage
Increase energy density and reduce system complexity with Allegro’s compact products, designed to minimize power loss and manage thermal performance.
Heat Pumps
Improve energy efficiency and climate impact with Allegro’s motor drivers and sensors that enable quiet, reliable operation in modern heat pump systems.
The worlds leading clean energy companies innovate with Allegro
Documentation & Resources
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.
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.
Video
GHSP and Allegro MicroSystems' Partnership
GHSP and Allegro MicroSystems' long-standing partnership has redefined EV design, pushing boundaries with cutting-edge technologies.
OnDemand Webinar
Highly Efficient Power Conversion in Clean Energy Applications
Discover how to achieve high efficiency in energy conversion of alternating current (AC) and direct current (DC) utilizing next generation field-effect transistors (FETs) made of gallium nitride (GaN).
Brochure
Allegro Company Overview
Our Energy Efficient ICs are at the Core of Sensing, Regulating, and Driving All Electrical and Electronic Equipment.
eBook
Overcome the Challenges of Next-Gen Energy Systems
Over the last few decades, there have been significant advancements in the development of clean energy systems and energy harvesting. Download the e-book today and learn!
Technical Article
Solving the Challenges of Increasing Power Density by Reducing Number of Power Rails
P0243 - This article overviews challenges associated with high-power-density solutions and the technologies that best enable the desired outcome.
Video
Allegro's Coreless Current Sensor Solutions
The ACS3761X Hall-effect sensor IC solution family is a coreless and shield-free solution, reducing BOM and overall inverter size and weight.
Application Note
Achieving Closed-Loop Accuracy in Open-Loop Current Sensors
Closed-loop current sensing technology is employed in many industrial and automotive applications for accurate current sensing. Allegro MicroSystems has developed magnetic-based current sensor IC solutions that achieve near closed-loop accuracy using an open-loop topology.
Brochure
Brochure: Code-Free Gate Drivers for Data-Center Cooling Fans
Our portfolio of three-phase BLDC motor drivers includes solutions with integrated MOSFETs or gate drivers, as well as options for power loss braking for high efficiency.
Infographic
How Sensor ICs Make Clean Energy Work
Sensor integrated circuits (ICs) are revolutionizing the world of clean energy. Explore the fascinating ways that sensor IC's are shaping out clean energy landscape and paving the way for a more sustainable future.
Video
Clean Energy Overview
In today’s ever-evolving world, clean energy is not just a necessity, but a global responsibility. Join us in paving the way for a cleaner, greener future! Watch Video.
Technical Article
Magnetic Current Sensing Drives Vehicle Electrification
Modern cars have become increasingly power hungry. Even the “least electrified” vehicles include advanced electronics for infotainment, safety, and engine control. Fully electric vehicles further add high-voltage power domains to charge and drive. Each of these systems shares the need for power monitoring and control, and this is where current sensors are used.
Brochure
DC Fast Charging: Faster and Farther
With an ever-growing number of EVs on the road, more charging stations are needed to sufficiently cover the vast road network and overcome a major consumer concern of range anxiety.
Brochure
Comfort Through Sustainability - Unlock the Power of Heat Pump Innovation
Heat pumps are at the crux of the energy efficiency revolution, unique in their ability to deliver more heating energy than the electrical energy they consume.
Brochure
Brochure: Integrated Power Monitoring with the ACS37800
Allegro’s ACS37800 offers its customers the capability to easily monitor and optimize the energy efficiency of power supplies, lighting, and motor control sub-systems in connected building automation solutions while simplifying the system design.
Application Note
Allegro Motor Driving with Angular Sensor IC
AN296171 - This application note will describe how to use Allegro’s motor driver and angle sensor solutions to enable precise driving and reliable monitoring of brushless DC (BLDC) motors.
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: Solar Energy Harvesting
Allegro’s current sensor ICs are ideal for use with solar applications, which include electronic subsystems like solar combiner boxes, DC/DC converters for maximum power point tracking (MPPT), and DC-AC inverters.
Application Note
Vertical Hall Technology Enables Effective Tamper Detection
A recent breakthrough in Hall-effect sensing has enabled the creation of omnidirectional magnetic sensor ICs that match all of the requirements for tamper detection.
Application Note
Differential Current Sensing with the 1 MHz Bandwidth ACS733
AN296154 - This application note describes the use of the new highly isolated, high bandwidth ACS733 Hall-effect current sensor integrated circuit (IC) from Allegro MicroSystems and gives an overview of its features and advantages over a highspeed current transformer (CT) current sensing solution.
Technical Article
Current Sensing For Renewable Energy
In grid-tied photovoltaic systems, designers must focus on minimizing cost per watt to deliver the best possible return on investment.
Application Note
Improved Performance and Features of Allegro’s Next Generation, High Power Density CB Package Current Sensors
This application note will describe the use of the new high current ACS772 Hall-effect current sensor integrated circuit (IC) from Allegro MicroSystems and will give an overview
of its features and improvements from previous Allegro high-current sensors.
Application Note
Common Mode Field Rejection in Coreless Hall-Effect Current Sensor ICs
Allegro current sensor ICs use the Hall-effect to measure the magnetic field produced by an integrated, current-carrying loop, translating the magnetic field to a voltage which is proportional to the current flow.
Application Note
Improving Efficiency in Smart Grid Applications With Fully Integrated Current Sensing ICs
With increasing concerns about the global demand for energy and environmental awareness, power electronics applications are under pressure to improve efficiency.
Application Note
Non-Intrusive Hall-Effect Current-Sensing Techniques Provide Safe, Reliable Detection and Protection for Power Electronics
As systems extend and expand the exploitation of the latest power semiconductors (IGBTs, MCTs, etc.) that manifest the very relentless advance in power output limits, a prerequisite (and parallel) demand for sensing these escalating current levels is (increasingly) very apparent.
Whitepaper
Demystifying GaN Drivers in Clean Energy Application
The next generation of electric switches based on wide bandgap semiconductors are gaining popularity in the market.
Technical Article
Facilitating a Clean Energy Future with Current Sensing Solutions
Clean energy technologies, like solar, EV batteries, wind, and hydroelectric, offer a sustainable way to meet energy needs without releasing toxic greenhouse gases.