TI: GaN power design drives 200-V AC servo drives and robotics with 99-percent efficiency

Texas Instruments introduced an innovative three-phase, gallium nitride based inverter reference design that helps engineers build 200-V, 2-kW AC servo motor drives and next-generation industrial robotics with fast current-loop control, higher efficiency, more accurate speed, and torque control. Download the reference design today.

The Three-Phase High-Frequency GaN Inverter Reference Design features TI’s newest LMG3410 600-V, 12-A GaN power module with an integrated FET, gate driver and protection, announced last year. The GaN module allows the design to switch up to 5x faster than silicon FETs, while achieving efficiency levels greater than 98 percent at 100 kHz and greater than 99 percent at 24 kHz pulse width modulation (PWM) frequency. With GaN, designers can optimize switch performance to reduce power loss in the motor, and downsize the heat sink to save board space. Operating the inverter at 100 kHz significantly helps improve torque ripple when used with low-inductance motors.

The GaN inverter power stage easily interfaces with microcontrollers, including TI’s TMS320F28379D drive control system-on-chip to help dynamically adjust voltage frequency and achieve ultra-fast current loop control. TI also introduced today its new DesignDRIVE Fast Current Loop software with innovative sub-cycle PWM update techniques that help push current-loop performance in servo drives to less than 1 microsecond, potentially tripling motor torque response. The Fast Current Loop software outperforms traditional MCU-based current-loop solutions, and is available free with controlSUITE software.

In addition to the GaN module, the reference design relies on TI’s AMC1306 isolated delta-sigma modulators with current sensing to increase motor control performance. TI’s ISO7831 digital isolator also provides reinforced isolation between the MCU and the design’s six PWMs.

Latest News from

TI: GaN power design drives 200-V AC servo drives and robotics with 99-percent efficiency
TI: DesignDRIVE software for C2000 MCUs helps achieve sub-1 microsecond current loop
TI: SoCs drive down cost of multi-protocol industrial Ethernet communication
TI: small gate driver and power MOSFET solution for motor control

Keysight's Joachim Peerlings talks about the new UXR series Oscilloscope

In this video Keysight's Joachim Peerlings talks about the new UXR series Oscilloscope with Alix Paultre at their launch event in Munich. The Infiniium UXR-Series of oscilloscopes has models rangi...


BrainChip explains their new Neuromorphic System-on-Chip

In this video, Bob Beachler of BrainChip talks to Alix Paultre about their latest single-chip neural network technology.  Spiking neural networks (SNNs) are inherently lower power than traditiona...


Vincotech – EMPOWERING YOUR IDEAS

In this video the Vincotech team walks us through the most important topics displayed on their booth at PCIM Europe 2018. It also explains why Vincotech is First in SiC Modules. Being very flexible in...


Microchip talks about their latest secure microcontroller

Microchip's new SAM L10 and SAM L11 families of 32-bit microcontrollers (MCUs) address the growing need for security in Internet of Things (IoT) endpoints by protecting against the increasing the ...


E-Mail Newsletters

nlsc240

Our 3 E-Mail Newsletters: EETimes/EDN Europe, Embedded News and Power Electronics News inform about the latest news in technology and products, as well as technical know-how like white papers, webinars, articles, etc.


B & S / ECE Magazine

- latest issue is online now -

June 2018

Content Highlights

Cover Story

The challanges of IoT security and how to harden the edge

Download now