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TMS320F28069M: Signal conditioning

Nishant Gupta
Prodigy 95 points

Part Number: TMS320F28069M
Other Parts Discussed in Thread: C2000WARE

Tool/software:

I am designing Inverter for motor control by using the microcontroller F28069M. If I do programming using this and use EPWM module then how i will give gate pulses to the inverter gate driver. I know that using GPIO pins it will give 3.3V.But My gate driver need 12V then how to give .I will give 3.3V or some other circuitory needed for that please tell and by using ADC pin I will sensing current but i don't use any protection circuit for that then what are the possibilities that can happen and I will be using oscilloscope for signal for that I need other eternal circuit to design. Please tell me resources of all that I raised on. And I am using Encoder for speed sensing, but I am unable to configure that part. Please give me simplest solution to measure speed of the motor. I think protection circuit needed. Give me guidance so that I should not damage the Microcontroller. And tell all the list of problems that i face if I do not use this protection circuit.

Thanks& Regards 

Nishant Gupta

  • 0
    TI__Expert 5890 points

    Hi Nishant,

    Nishant Gupta said:
    using GPIO pins it will give 3.3V.But My gate driver need 12V then how to give

    You need a level shifter to lift the voltage level. 

    Nishant Gupta said:
    by using ADC pin I will sensing current but i don't use any protection circuit for that then what are the possibilities that can happen

    You can use enable the Trip-Zone function in ePWM module to have a overcurrent protection through software. You can refer to the examples in the C2000WARE SDK.

    Nishant Gupta said:
    And I am using Encoder for speed sensing, but I am unable to configure that part. Please give me simplest solution to measure speed of the motor.

    Please refer to the universal motor control lab project in C2000Ware_MotorControl_SDK, which contains example implementation for reading eQEP sensor signals or Hall sensor signals.

    Thanks,

    Jiaxin