AC Inverter & VF Drives

Block Diagram (SBD) for AC Inverter Drives System featuring microcontrollers, gate drivers, isolation, industrial interface and power management.

Block Diagram

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Reference Designs


AC Inverter & VF Drives

Leveraging AC Inverters and VF Drives for AC Induction Motors in industrial applications saves energy, but also raises productivity, increases manufacturing flexibility, addresses regulatory and safety needs and can actually lengthen the life of the mechanical equipment. .

Whether the drive control is open loop, variable frequency or more advanced techniques like field oriented control or direct torque control, drives designers face many of the same questions:

What options are available for inverter and motor protection?

Are there better ways to sense phase current and voltage?

How can I protect my control circuit from the high power circuits?

Which communication network do I need to support?

How much real time control performance is needed?

Which safety standard(s) do I need to follow?

How can I scale my design for power/cost/performance?

Texas Instruments has motor control solutions to help answer all of these questions including high voltage sensing, isolation, industrial communications network support, real time controllers, gate drivers, power management and industrial safety solutions.


C2000™ and Hercules™ microcontroller (MCU) families are ideal for controlling an AC induction motor. All of these MCU families can be used for implementing scalar or vector-control techniques.C2000 MCUs are ideally designed for real-time operation and have high-resolution pulse-width modulators (PWMs) for precise control of gate drivers. Multiple (up to 4) 16-bit/12-bit, high-speed analog-to-digital converters (ADCs) can sample any sensor inputs with high precision. Integrated Analog overvoltage comparators, and PWM trip zones can very quickly remove power to the motor during out-of-range scenarios.

The combination of high-performance PWMs and ADCs guarantees a low torque ripple and highly efficient motor control. The powerful C2000 MCU core architecture enables fast execution of mathematical algorithms for controlling the motors with vector control. To get started with C2000 MCUs for CNC Machinery applications, visit C2000 Industrial Drives.

p>The RM4 and TMS570 Hercules Safety MCUs are based on the widely used ARM Cortex R4F core and are built to ease the development and certification of safety critical systems. The RM4 and TMS570 Hercules Safety MCUs have a up to two 12-bit ADCs. The flexible HET co-processor delivers motor-control-specific PWM to provide efficient control of the motor. On-board communication peripherals such as USB, Ethernet and CAN enable the MCU to act as a networked controller that can perform safe motor control as well.

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Application Notes (7)

Title Abstract Type Size (KB) Date Views
HTM 8 KB 06 Jul 2015 396
HTM 8 KB 12 Mar 2015 2237
HTM 9 KB 01 Jul 2013 1291
HTM 8 KB 01 Jul 2013 2234
HTM 8 KB 06 Sep 2011 1493
HTM 8 KB 06 Sep 2011 384
HTM 8 KB 06 Sep 2011 1621

Selection and Solution Guides

Selection Guides (5)

Title Abstract Type Size (KB) Date Views
PDF 3 MB 16 Jun 2015 17438
PDF 5.6 MB 05 May 2015 24801
PDF 9.45 MB 16 Apr 2015 106535
PDF 4.63 MB 22 May 2014 5375
PDF 16.33 MB 17 Nov 2011 1212

Solution Guides (5)

Title Abstract Type Size (KB) Date Views
PDF 2.05 MB 31 Oct 2014 37761
PDF 1.29 MB 31 Oct 2014 8699
PDF 2.52 MB 28 Oct 2014 7862
PDF 2.31 MB 28 Oct 2014 5738
PDF 3.14 MB 28 Oct 2014 2358

Tools and Software

Name Part # Company Software/Tool Type
AMC1210 Mother Board AMC1210MB-EVM Texas Instruments Evaluation Modules & Boards
C2000 Resolver to Digital Conversion Kit TMDSRSLVR Texas Instruments Evaluation Modules & Boards
Code Composer Studio (CCS) Integrated Development Environment (IDE) CCSTUDIO Texas Instruments SW Development Tools, IDEs, Compilers
High Voltage Motor Control and PFC Developer's Kit TMDSHVMTRPFCKIT Texas Instruments Evaluation Modules & Boards

Product Bulletin & White Papers

Product Bulletin (2)

Title Abstract Type Size (MB) Date Views
PDF 311 KB 20 Nov 2013 853
PDF 216 KB 17 Oct 2012 3962

White Papers (4)

Title Abstract Type Size (MB) Date Views
PDF 3.04 MB 12 Jun 2015 705
PDF 1.17 MB 04 Oct 2012 1883
PDF 179 KB 20 Apr 2012 3825
PDF 1.64 MB 02 Sep 2011 3249

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