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String Inverters and Optimizers

Our reliable solutions extend the lifetime of your string inverters and optimizers. Integrated features, and low power losses reduce design complexity, system temperatures and improve efficiency.

Select a subsystem below to view related products. 

String Inverter and DC Optimizers Application Diagram
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    PV Input Current Sensors

    ACS37002 – High Isolation & Accuracy 400kHz Current Sensor
    CT432 – High Bandwidth and Accuracy Current Sensor
    CT433 – High Bandwidth and Accuracy Current Sensor

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    Optimizer Current Sensors

    ACS711 – 0A-31A Hall Current & Fault Sensor

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    Fully Integrated Isolated Gate Drivers

    AHV85110 – Self-Powered Single Channel Isolated GaNFET Driver

    AHV85111 – Self-Powered Single Channel Isolated GaNFET Driver

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    Fully Integrated Isolated Gate Drivers

    AHV85110 – Self-Powered Single Channel Isolated GaNFET Driver

    AHV85111 – Self-Powered Single Channel Isolated GaNFET Driver

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    Fully Integrated Isolated Gate Drivers

    AHV85110 – Self-Powered Single Channel Isolated GaNFET Driver

    AHV85111 – Self-Powered Single Channel Isolated GaNFET Driver

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    MPPT Current Sensors

    ACS37002 – 0-80A Current + Fault Sensor

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    Fully Integrated Isolated Gate Drivers

    AHV85110 – Self-Powered Single Channel Isolated GaNFET Driver

    AHV85111 – Self-Powered Single Channel Isolated GaNFET Driver

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    DC/DC Current Sensors

    ACS772 – High Power Current Sensor
    CT455 – Contactless Current Sensor
    CT456 – U-Core Current Sensor

     

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    System Power Conversion

    ARG81801 – Wide Input Voltage, 2.4 MHz, 3.0A Asynchronous Buck Regulator

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    AC Output Current Sensors

    ACS37002 – 0-80A Current + Fault Sensor

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Featured Products

Allegro's MA-LA-MC Packages

ACS37002

400 kHz, High Accuracy Current Sensor with Pin-Selectable Gains

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Self-Powered Single-Channel Isolated GaNFET Gate Driver with Power-Thru Integrated Isolated Bias Supply

AHV85110

The AHV85110 isolated gate driver is optimized for driving GaN FETs in multiple applications and topologies.

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ACS732-3 Product image

ACS732 and ACS733

1 MHz Bandwidth, Galvanically Isolated Current Sensor IC in SOIC-16 Package

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ARG81801 Product Image

ARG81801

Wide Input Voltage, 2.4 MHz, 3.0A Asynchronous Buck Regulator

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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 ...

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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.

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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 ...

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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 ...

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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 ...

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Application Note

Current Sensing for Power Delivery

March 11, 2022

AN296256 - This article will discuss the advantages of various current sensing methods in power delivery.

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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 ...

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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 ...

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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 ...

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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 ...

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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.

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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 ...

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