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Current input to the 8301-69M-kit

Michael Mina1
Intellectual 480 points
Other Parts Discussed in Thread: LVSERVOMTR, 2MTR-DYNO, BOOSTXL-DRV8301, LAUNCHXL-F28027F

Hello, I will be powering up the 8301-69M-kit soon, DRV830x Rev D. Hardware Quick Start Guide, on step 6 page 9, it says to connect 8-60V DC power supply to the PVDD and GND terminals.  But what is the input current limit?

I'm thinking of purchasing an AC/DC converter that will plug in the wall (120 VAC), to generate the V DC power for the kit, but i need to know the current input.

  • 0
    TI__Mastermind 21320 points

    Hi Michael,

    The amount of current required will depend on the type of load. Without any load on the half bridges the board will not consume more than a few 100mA. The board supports ~40A max.

  • 0 in reply to Nicholas Oborny
    Intellectual 480 points

    Does TI sell any motors for the 8301-69M-kit?  AC Induction or PMM? since it's 60V, 60 A output. 

  • 0 in reply to Michael Mina1
    TI__Guru** 119500 points

    Michael,

    Our standard motor for this kit is the LVSERVOMTR.  You can run this motor to 50V+ and it will pull over 7A.

    You can also purchase two of these with coupling and frame mount as 2MTR-DYNO

    We will soon offer a LVACIMTR that will also couple/mount into the Dyno as well.

     

    Technicaly, none of these motors are really ideal for the 66V / +/-40A scaling.  The LVSERVOMTR works fine for demonstration and education on this board (though their low speed performance suffers). It is important for best performance to scale your HW voltage/current to the motor you are using to maximize resolution.  We do not offer a low voltage, high current motor for this board....a motor like this is typicaly found in a power tool, automotive pump, or an e-Bike.  These motors are a bit better suited.

    We also have the BOOSTXL-DRV8301, an inverter designed for 6-24V/10A.  Better scaling for these lower voltage/current motors.  Currently this uses a LAUNCHXL-F28027F for control, running InstaSPIN-FOC examples.  We are also working on another LaunchPad with more features :)

    Good Luck!