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80W BLDC motor drive system

Adam Daluga
Expert 6465 points
Other Parts Discussed in Thread: TMDXIDDK379D, DESIGNDRIVE

Hello,

We are working on a new project.  Ultimately, we’re looking to develop a complete 80W BLDC motor drive system, including:

  • Processor with working code
  • AC-mains supply for motor bus
  • 3-phase power stage
  • SMPS for analog and logic circuits
  • Motor feedback signal conditioning

 It would probably have ~370V avg bus voltage. Do you have any motor drives that would fit this higher voltage applicaiton?

Best,

Adam

  • 0
    TI__Guru** 119670 points

    that is very low power for a high voltage inverter

    we have several high voltage EVMs that work up to 5-10A

    There are multiple C2000 MCUs (small to high performance) and different control techniques available (sensorless, encoder).

    TMSHVMTRINSPIN - InstaSPIN-FOC (sensorless) and InstaSPIN-MOTION (encoder) on smaller C2000 devices

    TMDXIDDK379D - DesignDRIVE encoder based examples on mid to high-end C2000 devices.

  • 0 in reply to Genatco
    TI__Expert 6465 points

    Hello,

    Both the TMDXIDDK and Single-axis Motor Control Reference Design with Integrated Power Factor Correction reference designs seem viable.  One of my immediate concerns, with both, is that they use an integrated power module that is obsolete.  We would have to find a suitable alternative module, or perhaps move to a discrete component solution. Do you have any suggestions for this. Also, to add to my above requirements:

    1. While our current needs require support for an 80W BLDC motor, we need capability, or scalability, up to a 750W motor.
    2. Our speed range requirement is 0.6 to 3600 RPM, with 0.1% regulation.

     

    I also wanted to emphasize our need for working motor-control code.

    Do you have any suggestions?

    Best,
    Adam

  • 0 in reply to Adam Daluga
    TI__Guru** 119670 points

    Adam,

    You aren't going to find something that has a hardware design that you can simply copy / produce with software that already works as-is.

    These are meant as evaluation platforms, not products.

    There are some TI reference designs that are meant to be hardware-wise a little more close to a product than an EVM, but they usually have rudimentary open loop software if anything.

    If you need something very close to ready to go you would probably be better off purchasing an off the shelf industrial drive / inverter.

  • 0 in reply to ChrisClearman
    TI__Expert 6465 points

    Thanks Chris,

    Does TI have any off the shelf industrial drive/inverters or could you recommend where I could find those?

    Best,

    Adam

  • 0 in reply to Adam Daluga
    TI__Guru** 119670 points

    we don't sell drives

    Eaton, Danfoss, RS, KB Drives (think these are sold under the brand Galco)

    there are hundreds of these companies out there.