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

Bs&T at PCIM2018

powerlosstester presenting BsT-pulse 3 phase version and BsT-SQ for powerloss measurement of inductive components new findings of tester, the highest Bs ferrite material D9B for SiC application GaN fe...


Würth and AnDAPT describe their new programmable power solution

In this video an engineer from AnDAPT describes their new programmable power solution and their partnership with Würth at the APEC exhibition  in San Antonio, Texas. Drawing from Würth&...


MAGMENT: Magnetizable concretes, sole enablers for dynamic inductive wireless charging.

MAGMENT is a patented material technology, engineered from cement and magnetic particles from recycled electronic waste. We are the inventors and sole company worldwide to offer both the concrete mate...


A look at Analog Devices' wireless power demonstration at APEC 2018

In this video Steve from Analog Devices walks us through a wireless power transmission demonstration at APEC 2018 in San Antonio, Texas. The LTC4120 is a constant-current/constant-voltage wireless rec...


Analog Devices talks about their Power over Ethernet solutions at APEC

In this video Analog Devices talks about their Power over Ethernet solutions at APEC 2018 in San Antonio, Texas. Their LTC4291 provides four PSE Ports with two power channels per port, and is fully co...


Silicon Labs demonstrates their latest PoE solutions at APEC 2018

In this video John Wilson of Silicon Labs demonstrates their latest Power over Ethernet solutions at APEC 2018 in San Antonio, Texas. The live demonstration shows how a remote device can effectively p...


Vitrek explains their advanced testing solutions at APEC 2018

In this video Vitrek explains their advanced testing solutions at APEC 2018 in San Antonio, Texas. The devices displayed includes their 4700 high-voltage meter, which can measure up to 10kV and can pe...


Dirk Giesen describes the Parasoft tool suite for Embedded Software Development

Are you responsible for embedded software development in your organization? Your goal should be to create safe, secure, and reliable software. To make sure your device will work properly, deploy Paras...


Ross Sabolik of Silicon Labs talks about advanced Power over Ethernet

In this video Ross Sabolik of Silicon Labs talks about smart  Power over Ethernet systems with Alix Paultre at their APEC exhibit in San ANtonio, Texas. As PoE migrates to higher power levels and...


Dialog Semi walks through their latest IC solutions for battery chargers

In this video an engineer from Dialog Semiconductor walks us through their latest ICs for battery chargers at APEC 2018. Dialog's Qualcomm Quick Charge adapter solutions offer high efficiency to e...


Steve Allen of pSemi explains their latest LED driver solution

Steve Allen of pSemi explains their latest LED boost product based on Arctic Sand's two-stage architecture. Their PE23300 has a charge-pump, switched-capacitor architecture that offloads most of t...


Teledyne describes their latest 12-bit Wavepro HD oscilloscope

In this video Teledyne LeCroy describes their latest Wavepro HD oscilloscope to Alix Paultre of Power Electronics News at the company's launch event. The WavePro HD high-definition oscilloscope de...