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DRV8701EVM: Is there any possibility to use DRV8701 Evaluation Module for Single phase induction motor, as it contains H-Bridge configuration.

Part Number: DRV8701EVM
Other Parts Discussed in Thread: DRV8701, MSP430F5529, BOOSTXL-DRV8320S

As per DRV8701 Evaluation Module, it contains H-bridge inverter configuration. I need to know is there any possibility of using the same board for speed control of single-phase induction motor.

  • Hi ATHIESHKUMAR T,

    It appears to be possible, but the firmware will have to be modified.
     
    Since you have to modify code, may we suggest you consider the BOOSTXL-DRV8320S? The BOOSTXL-DRV8320S along with the MSP430F5529 LaunchPad have three half bridges. The firmware will be easier to modify.

  • Thanks Rick Duncan for your reply.

    But I don't Three Phase Gate Driver - Inverter Module. My application is speed control of Single phase Induction motor for domestic purpose. For that I need Full H-Bridge inverter. Can you suggest me, how can I proceed with DRV8701 Evaluation Module or any other EVM related to Single phase applications.
  • Hi ATHIESHKUMAR T,

    There are two choices to modify the code:
    1) Modify the existing code on the board via the 4 pin Spy-By-Wire connector (J3) or
    2) Remove the resistors between the mcu on the EVM and the DRV8701. Then connect a different mcu to the header on the EVM

    How do you intend to control the speed?
    Do you have a sensor or intend to measure the BackEMF?
    What voltage and current requirements do you need?
    How do you intend to control the current (PWM control of inputs or slow decay using VREF)?

    These questions will help us guide you to the proper EVM.

    It is recommended to purchase two EVMs so you will have the original set up if there are any issues.

  • Hi ATHIESHKUMAR T,

    I have not heard from you in some time, and am assuming your issue has been resolved. If it has not been resolved, please reply to this thread. If the thread is locked, please open a new thread by clicking the "Ask a related question".