驱动器

Efficient and Reliable Solutions to Meet New Emission Standards in Two-Wheelers

June 05, 2023

P0255: This article discusses the challenges that two-wheeler designers face when switching to an EFI system, notably a 100 ms fast startup requirement.

Single Gate Driver Design Enables Wide Range of Battery Voltages for Various Motor Power Levels

April 10, 2023

P0239 - This article discusses the challenges of trying to accommodate wide-ranging battery voltages and motor powers in a single driver design.

Integrated Power Loss Brake Features Lower Energy Consumption and Reduce Costs in Data-Center Fan Applications

October 12, 2022

Service interruptions of servers can result in adverse scenarios including inefficient airflows created by fan blades that have lost power to maintenance in the presence of fan blades. This article introduces power loss brake (PLB) functionality and how lost power can be harnessed to improve ...

Sensorless and Always Without Reverse Rotation: Rapid and Accurate Startup for Blower Fan Motors

September 09, 2022

P0211 - This article describes how initial rotor position detection techniques can overcome torque generation challenges to provide anti-reverse, fast, sensorless startup.

Hall-Based BLDC Gate Drive Saves Microprocessor IO and Provides Zero Speed Torque

September 08, 2022

P0127: Many BLDC motor applications require Hall-based position sensing to accommodate direction changes quickly and provide holding torque.. Allegro gate driver ICs with integrated Hall commutation are designed with the Hall-based commutation engine integrated into the IC.

Modern Motor Drivers Enable a Common Platform for Power Tool Designs

April 15, 2022

Our brushless DC motor drivers help you design a common platform to address both high power and lower power designs. We integrate functions to allow for a single-platform approach, reducing engineering development cycles and improving time to market.

Improving Batwing Power Dissipation

AN295015 - Allegro MicroSystems’ stepper motor ICs are power ICs encapsulated in DIP (dual in-line), SOIC (small outline integrated circuit), and PLCC (plastic leaded chip carrier) packages. The silicon die is directly bonded to a heat-spreading lead frame (batwing).

A Scalable Approach to Power Tool Designs

Achieve all of your design goals for voltage and power levels with a single-platform architecture by combining Allegro drivers, sensors, and regulators.

Brochure: Driving EV Powertrains

With the industry’s largest portfolio of grade 0, 80V motor drivers, Allegro’s suite of fully integrated gate drivers effectively address the critical need for efficient, flexible, reliable solutions for your hybrid and electric vehicles (EV).

Bootstrap Supply and Circuit Guidelines

This application note describes the operation of the bootstrap circuit and guidelines in selecting a bootstrap capacitance value to ensure normal operation of the gate drives.

Estimating Maximum MOSFET Switching Frequency

AN296216 - This application note describes how to calculate the maximum power MOSFET switching frequency in BLDC motor gate drives.

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.

单一平台设计可降低无绳电动工具的研发成本

P0193 - Power Tool engineers are duplicating resources with current product designs as they often use different motor drivers, manufacturers, design layouts for each product variation. This article reviews options to utilize a single platform in a wide array of applications – saving design time ...

AMT49100 & AMT49101: How to Enable / Disable the Buck Regulator

AN296217 - This application note describes how to switch between buck enabled and buck disabled operation on any variant of the AMT49100 or AMT49101 gate diver family.

Brochure: Automotive BLDC Gate Driver with Integrated FOC Algorithm

Designed for battery cooling fans and HVAC systems in EV and hybrid vehicles, the A89307 offers ultra-low noise and vibration by using a Field Oriented Control (FOC) algorithm to drive continuous sinusoidal current to the load, helping automakers reduce noise and improve battery life.