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Best suitable controller to run my 42v PMDC motor

Vishwambhar Joshi1
Prodigy 80 points
Other Parts Discussed in Thread: TMDXIDDK379D, BOOSTXL-DRV8301, DRV8873HEVM, BOOSTXL-DRV8320RS, DRV8704, DRV8704EVM, DRV8702-Q1, DRV8702-Q1EVM, DRV8702D-Q1, DRV8702D-Q1EVM, DRV8703-Q1EVM, DRV8703-Q1, DRV8703D-Q1EVM, DRV8703D-Q1

1) Model No: TMDXIDDK379D

    Site: https://www.ti.com/tool/TMDXIDDK379D 

                             or

2) Model No: BOOSTXL-DRV8301

    Link: https://www.ti.com/tool/BOOSTXL-DRV8301  

                            or

3)Board Name: DRV8320RS three-phase smart gate driver with buck and SPI interface evaluation module

   Link: http://www.ti.com/tool/BOOSTXL-DRV8320RS#1 

                             or

4)Model No: DRV8873HEVM

   Link: http://www.ti.com/tool/DRV8873HEVM

   

Question: Can you tell me out of above which controller board is suitable to run my 42v PMDC motor having rating of:

                            1) Rated Power           =  250 W

                            2) Max Voltage            =  42 V

                            3) Max Speed              =  4000 RPM

                            4) No load current        =  0.97 Amps 

                            5) Ke                           = 8.7 V/Krpm

                            6) Terminal Resistance  =  3.9 Ohm

                            7) Terminal Inductance = 0.665 mH

Basically I want to run my motorsolver dyno kit you can get more details on http://motorsolver.com/kits/250-watt-dyno-kit/ 

If you have any other solution then please let me know

Please let me know your answer

 

  • 0
    TI__Guru 63690 points

    Vishwambhar,

    Thanks for posting on the MD forum!

    I can comment on the two BLDC options above and then hand the post off to the other two teams for comment on the Brushed solution and the C2000 solution.

    2) The BOOSTXL-DRV8301 kit supports up to 24V so it cannot be used with your 42V motor.

    3) The BOOSTXL-DRV8320RS kit supports ABS MAX of 60V so if you can guarantee that voltage transients under heavy load or braking will not exceed 60V then this kit can be used. Please note that the kit as shipped does not support brushed motors as this is setup for three phase brushless motors. You will need to write code to support the two phase operation with this kit.

    I would suggest using a Brushed kit as they would be best suited out of the box.

    Regards,

    -Adam

  • 0 in reply to Adam Sidelsky
    TI__Guru 56650 points

    Vishwambhar,

    4) DRV8873HEVM supports up to 38V. So, it cannot be used with your 42V motor. This application current is >6A (stall current could be higher than 10A). DRV8704 brushed DC motor driver uses the external FETs to support high current application and it can support up to 52V. Please check if the motor is a brushed motor and the input voltage range has enough margin from 52V.

  • 0 in reply to Adam Sidelsky
    Prodigy 80 points

    Hello Adam,

    thanks to reply me so by taking your suggestion I'm deleting BOOSTXL-DRV8301 kit from my list.

    Now talking with your 3rd point about writing codes that's supports two phase operation can I run my 42v PMDC motor. 

    If yes then please provide me that codes and also told me that how can I write that code in Code Composer Studio (CCS)

  • 0 in reply to Wang5577
    Prodigy 80 points

    Hello Adam,

    DRV8873HEVM  supports up to 38V means it can run up to 38v PMDC motor??

    For DRV8704 it comes with a board or only one IC??

    also told me that DRV8704 support up to 52V so can it support to my motor voltage i.e., 42v PMDC motor

    please give me one proper controller that supports to requirement for 42v PMDC motor, all the specification that I have listed earlier 

    please give me quick replay I have very limited time.

  • 0
    Prodigy 80 points

    If you have any other board or solutions that reaches my requirements then please let me know

  • 0 in reply to Vishwambhar Joshi1
    TI__Guru 56650 points

    Vishwambhar,

    DRV8873HEVM  supports up to 38V. That doesn't mean the input can have typical 38V.  We have to give enough margin for the input source voltage variation; any spike during the input source hot plug-in and any spike  at motor brake or back drive by customers.

    DRV8704EVM can be found in https://www.ti.com/store/ti/en/p/product/?p=DRV8704EVM

  • 0 in reply to Wang5577
    Prodigy 80 points

    yes I understood that DRV8873HEVM supports up to 38v & I have to give enough margin for the input source voltage variation but can it work with my 42v PMDC motor or DRV8704EVM is good for my 42v PMDC project ?

    If you have any other controller then please suggest me

  • 0
    Prodigy 80 points

    Hello,

    I have find out this following EVM boards & read all the document files related to this boards so out of all boards I can see input voltage range or Operating Voltage Range of this boards but in that document files I'm not able to find that EVM board output voltage range for motor output. so please help me to find out of following board which board is suitable to run my 42v DC motor 

    1) DRV8702-Q1 Automotive Brushed DC Motor Gate Driver Evaluation Module (DRV8702-Q1EVM)

    www.ti.com/.../DRV8702-Q1EVM EVM&tisearch=Search-EN-everything#supportandcommunity

    2) Dual Brushed DC Motor Gate Driver Evaluation Module (DRV8704EVM)

    http://www.ti.com/tool/DRV8704EVM 
    3)DRV8702D-Q1 Automotive Half-Bridge Brushed DC Motor Gate Driver Evaluation Module (DRV8702D-Q1EVM)
    http://www.ti.com/tool/DRV8702D-Q1EVM 
    4)DRV8703-Q1 Automotive Brushed DC Gate Driver Evaluation Module (DRV8703-Q1EVM)
    http://www.ti.com/tool/DRV8703-Q1EVM 
    5)DRV8703D-Q1 Automotive Half-Bridge Brushed DC Motor Gate Driver With SPI Evaluation Module (DRV8703D-Q1EVM)
    http://www.ti.com/tool/DRV8703D-Q1EVM 
    Regards,
    Vishwambhar
  • 0 in reply to Vishwambhar Joshi1
    TI__Guru 56650 points

    Vishwambhar,

    Since you don't know the maximum input voltage in all operating condition, I would like to select Dual Brushed DC Motor Gate Driver Evaluation Module (DRV8704EVM) to support the  42v DC motor.

    All DRV870x supports 100% duty cycle which means the output voltage could be same as input voltage.