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Survey EV 3-phase PMSM Control Solution

JOHN KUO
Intellectual 350 points
Other Parts Discussed in Thread: OPA4322, PGA411-Q1

Hello TI,

I have project about EV motor control need you help or suggest suitable TI Design.

Our The 3-phase PMSM spec is power rating 13 KW, 130 N.m, 6000 r/min. Battery Pack Voltage 144VDC. 

1. Resolver shoud be use PGA411-Q1 or Amplifier OPA4322? since use PGA411 by memory size for MCU is very importment and OPA4322 have best cost.

2. MCU 28054F/M, 28052F/M or 28069F which is good? please comment.

  • 0
    TI__Genius 17175 points
    1. The PGA411-Q1 is a good option for the resolver interface, as it allows multiple output types (analog, parallel or SPI) depending on available I/O for your package. In the end, it is your design choice to make
    2. All of the devices you've listed are "good," the choice depends on your system requirements. I would recommend evaluating with the F2806x series, as it is the highest spec'd of the devices you've listed. If you find the performance is enough and have room to reduce the RAM/FLASH and reduce the SYSCLK, then you can make an informed decision at that time

    Sean
  • 0
    TI__Guru** 118790 points

    John,

    2. all the devices you mention are InstaSPIN.  InstaSPIN-FOC is a sensorless solution, so it would never be used with a resolver.

    InstaSPIN-MOTION is primarily a sensored solution, so it could be used with a resolver. All of the examples we show use an encoder, but it is a relatively simple change. Customers on this forum have done exactly this.

    So, if you have limited motor control experience, F28069M would be the recommendation.

    For those with experience, the Delfino F2837x and it's Piccolo equivalent F28075 are more popular devices for mainstream EV traction. Primarily due to extended memory, pins, and performance vs. F2806x.  Further, these devices also offer a clear path for ASIL-B system compliance, which may be a factor in your decision.  For more on Functional Safety see