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Thread: BLDC FOC sensorless not working with my ECU based on TLE9877QXA40

  1. #1
    New Member New Member M_BENDR is on a distinguished road
    Join Date
    May 2020

    BLDC FOC sensorless not working with my ECU based on TLE9877QXA40


    To drive my BLDC motor i'm using the Infineon BLDC FOC sensorless SW example for TLE9879 EVAL kit. it working well
    However when i use this SW with my own circuit (electronic control unit) based on TLE9877QXA40 IC i'm not able to spin the motor
    To configure the SW, i have used in keil µvision configuration wizard with config.icwp file of TLE9879 EVAL, i have just modify the target (TLE9877 instead of TLE9879)
    Please refer to the following schematics :
    Click image for larger version

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    Click image for larger version

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    For current sensing, i have 10 mohm resistor instead of 5
    I don't know what is the main difference between my own circuit and the circuit of the TLE9879 EVAL kit
    What peripheral i have to modify the setting (AD2, BDRV ....etc)
    what is the good values or what is the registers to modify ?
    thanks in advance for your support
    ?????? ?????? MIC.PNG‎  

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