03/24/2025, 07:33 AM UTC
三相氮化镓逆变器参考设计Three-Phase GaN Inverter Reference Design
➀ 本文介绍了德州仪器推出的12V-60V三相氮化镓（GaN）逆变器参考设计，重点针对机器人和电机驱动的高效率、精确电流感应和无传感器控制。
➁ 设计采用三个LMG2100R044 GaN半桥模块，每个模块能够承受100V和35A，集成了GaN FET、驱动器和自举二极管，以优化开关性能并减少寄生电感。
➂ 关键特性包括使用1mΩ分流电阻和INA241电流感应放大器实现精确电流测量，通过与C2000 MCU兼容的TI BoosterPack接口实现快速评估，并适用于机器人伺服驱动器、无人机配件等多种应用。
➀ This article introduces a 12V-60V three-phase GaN inverter reference design from Texas Instruments, which focuses on high efficiency, precise current sensing, and sensorless control for robotics and motor drives.
➁ The design uses three LMG2100R044 GaN half-bridge modules, each capable of handling 100V and 35A, integrating GaN FETs, drivers, and bootstrap diodes to optimize switching performance and reduce parasitic inductance.
➂ Key features include precise current measurement with a 1mΩ shunt resistor and INA241 current sense amplifier, compatibility with C2000 MCUs via a TI BoosterPack compatible interface, and suitability for applications such as robotic servo drives and drone accessories.
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