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  1. #1
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    Connections diff probe

    Hello all,

    I am making an experiment with bldc motor with block commutation using back emf detection method. Here, I want to check the switching sequence of MOSFET’s using differential probe. Can anyone please tell me shortly about the procedure for viewing the all six MOSFET’s switchings using differential probe? I would like to know the question like Where to connect the differential probe and etc., to see three legs of MOSFET’s in b6 bridge.
    On my circuit board, i have six mosfet’s as it is b6 bridge.
    I want to make sure if these switching sequence match with expected commutation table.

    Thanks in advance

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  2. #2
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    Re: Connections diff probe

    Hi,

    First you need to know which signals you want to show.
    Maybe the six PWM signals...they usually are all referenced to the same GND...
    or the gate signals...
    or the motor signals...

    Klaus
    Please don´t contact me via PM, because there is no time to respond to them. No friend requests. Thank you.



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