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Motor Control: High-Voltage

High-Voltage Motor Control Solutions from Texas Instruments

Block Diagram

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Design Considerations

High Voltage Brushless DC Motor Control

Schematic Block Diagram for High Voltage Motor Controllers

HVAC motors, Industrial Inverters, or HV Permanent Magnet Brushless motors are examples of high-voltage systems and typically classified by their power in horsepower. Although rotary motors are the most common, other configurations are available, such as linear motors, and gear head motors with various implementations of actuators built on. Digital motor control solutions precisely control the position, velocity, and torque of these mechanical drives. MOSFETs in such large drives typically exceed 600V. TI has gate drive solutions TPS2829, for example; a non-inverting high-speed MOSFET Driver. When combined with the TLV3501 comparator in the feedback loop, the gates in these systems can be digitally controlled. Alternatively, TI MOSFET drivers such as UCC37321 or UCC37323 can drive smaller motors directly or drive power devices such as MOSFETs or IGBTs.

The Core Subsystems Include:

Controllers :

TI offers a range of solutions for the control processor; from the ultra-low power MSP430 microcontroller to the TMS470 ARM7-based processors and C2000 Digital Signal Controllers (DSC). The right controller can optimize motor drive efficiency, improve reliability and lower overall system costs. The 32-bit DSP-class performance and motor-control optimized on-chip peripherals of the C2000 controllers enable users to easily implement advanced algorithms such as sensor-less vector control of three-phase motors. The C2000 family offers software-compatible controllers ranging from the low-cost F28016 to the industry’s first floating-point DSC, the TMS320F28335.

TI offers a range of solutions for the control processor; from the ultra-low power MSP430 microcontroller to the ARM® Cortex™-R4F-based Hercules™ Safety MCUs and C2000 Digital Signal Controllers (DSC). The right controller can optimize motor drive efficiency, improve reliability and lower overall system costs. The 32-bit DSP-class performance and motor-control optimized on-chip peripherals of the C2000 controllers enable users to easily implement advanced algorithms such as sensor-less vector control of three-phase motors. The C2000 family offers software-compatible controllers ranging from the low-cost F28016 to the industry’s first floating-point DSC, the TMS320F28335.

Isolation :

TI Digital isolators have logic input and output buffers separated by TI’s silicon dioxide (SiO2) isolation barrier, providing 4kV of isolation. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

Controller Interface :

RS-232 or RS-422 are adequate for many systems. RS-485 signaling may be bundled with protocols such as Profibus, Interbus, Modbus or BACnet, each tailored for the specific requirements of the end user. Sometimes controller area network (CAN) or EtherNet/IP (Industrial Protocol) are preferred do to network requirements. M-LVDS can provide lower power dissipation alternative. See app note http://focus.ti.com/lit/an/slla067a/slla067a.pdf for additional information on interface selection.

Motion Feedback using external circuits :

Isolated delta-sigma modulators (AMC1203/AMC1210) are ideal for shunt measurements to flatten glitches and increase current feedback resolution. Alternatively, INA19x (x=3 to 8) and INA20x (x=1 to 9) provide wide common-mode voltages for both low-side and high-side current shunt monitoring. Hall Effect or magnetic based sensors are typically more efficient when measuring over 10 Amps; plus they inherently provide isolation. ADS1204, ADS1205 and ADS1208 are recommended for this. To connect ±10V (20Vpp) signals to an analog-to-digital converter (ADC) using only a 3.3V or 5V supply, use an INA159 level translation difference amplifier. ADCs like ADS7861/ADS7864 or ADS8361/ADS8364 provide 4-channel or 6-channel simultaneous current sampling.

Recommended Resources

arrow iconC2000 Tools and Software

Application Notes (55)

Title Abstract Type Size (KB) Date Views
PDF 376 KB 06 Sep 2011 1579
PDF 64 KB 06 Sep 2011 1263
PDF 1.39 MB 06 Sep 2011 1023
HTM 9 KB 21 Sep 2009 3142
HTM 8 KB 19 Aug 2008 4657
HTM 8 KB 25 Oct 2007 1391
HTM 9 KB 26 Jul 2007 2106
HTM 8 KB 29 Jun 2007 839
HTM 8 KB 15 Mar 2007 2034
HTM 8 KB 20 Dec 2006 2565
HTM 9 KB 07 Jun 2004 661
HTM 8 KB 12 May 2003 1310
HTM 8 KB 28 Aug 2002 445
HTM 9 KB 10 Jul 2002 1935
HTM 9 KB 17 Aug 2001 527
HTM 8 KB 21 Feb 2000 345
HTM 9 KB 30 Oct 1999 719
HTM 9 KB 04 Oct 1999 769
HTM 9 KB 21 Sep 1999 563
HTM 9 KB 07 Sep 1999 1314
HTM 8 KB 12 Aug 1999 644
HTM 9 KB 29 Apr 1999 1232
HTM 9 KB 11 Feb 1999 603
HTM 9 KB 20 Nov 1998 1944
HTM 8 KB 20 Nov 1998 275
HTM 9 KB 20 Nov 1998 1056
HTM 8 KB 20 Nov 1998 258
HTM 8 KB 20 Nov 1998 380
HTM 8 KB 06 Nov 1998 740
HTM 8 KB 22 Jul 1998 302
HTM 8 KB 27 May 1998 493
HTM 8 KB 01 Mar 1998 263
HTM 9 KB 01 Mar 1998 402
HTM 8 KB 01 Jan 1998 8945
HTM 8 KB 01 Jan 1998 1614
HTM 8 KB 01 Jan 1998 365
HTM 8 KB 01 Jan 1998 556
HTM 8 KB 01 Jan 1998 390
HTM 8 KB 01 Sep 1997 218
HTM 8 KB 01 Sep 1997 250
HTM 8 KB 01 Sep 1997 279
HTM 9 KB 01 Sep 1997 416
HTM 8 KB 01 Jul 1997 372
HTM 9 KB 01 Jul 1997 371
HTM 8 KB 01 Jul 1997 368
HTM 9 KB 01 Jul 1997 1631
HTM 8 KB 01 Jul 1997 291
HTM 8 KB 01 Jun 1997 493
HTM 8 KB 01 Jun 1997 549
HTM 8 KB 01 Jan 1997 313
HTM 9 KB 01 Jan 1997 510
HTM 8 KB 01 Jan 1997 701
HTM 8 KB 01 Jan 1997 967
HTM 8 KB 01 Jan 1996 810
HTM 8 KB 01 Jan 1996 1432
    

Reference Designs

Description Part # Company
ADS1202 Reference Design ADS1202REF Texas Instruments
PFC (370V@1.75A) for Motor Drive PMP2971 Texas Instruments

Selection and Solution Guides

Selection Guides (2)

Title Abstract Type Size (KB) Date Views
PDF 16.33 MB 17 Nov 2011 1841
PDF 1.02 MB 20 Oct 2011 8703

Tools and Software

Name Part # Company Software/Tool Type
C28x IQMath Library - A Virtual Floating Point Engine SPRC087 Texas Instruments Application Software
Code Composer Studio (CCStudio) Integrated Development Environment (IDE) v5 CCSTUDIO Texas Instruments Code Composer Studio(TM) IDE
Dual Motor Control and PFC Developer's Kit TMDS2MTRPFCKIT Texas Instruments Development Boards/EVMs
Motor Control and PFC Developer's Kit TMDS1MTRPFCKIT Texas Instruments Development Boards/EVMs
MSP430 100-Pin Target board and USB Programmer MSP-FET430U100 Texas Instruments Development Boards/EVMs
MSP430 80-Pin Target board and USB Programmer MSP-FET430U80 Texas Instruments Development Boards/EVMs
MSP430F5xx 100-Pin Target board and USB Programmer MSP-FET430U5X100 Texas Instruments Development Boards/EVMs
MSP430FG4618/F2013 Experimenter Board MSP-EXP430FG4618 Texas Instruments Development Boards/EVMs
TMDXRM48HDK Hercules Development Kit TMDXRM48HDK Texas Instruments Development Boards/EVMs
TMS320F2812 eZdsp Start Kit (DSK) TMDSEZD2812 Texas Instruments Starter Kits
TMS320F2812 eZdsp Starter Kit (DSK) - Socketed version TMDSEZS2812 Texas Instruments Starter Kits
TMS320LF2401A eZdsp Starter Kit (DSK) TMDSEZD2401 Texas Instruments Starter Kits
TMS320LF2407A eZdsp Starter Kit (DSK) TMDSEZD2407 Texas Instruments Starter Kits

Product Bulletin & White Papers

Product Bulletin (1)

Title Abstract Type Size (MB) Date Views
PDF 180 KB 22 Jun 2009 994

White Papers (1)

Title Abstract Type Size (MB) Date Views
PDF 179 KB 20 Apr 2012 6191

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