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Speedval Evaluation Kit Current Sensing

SNaidoo
SNaidoo Contributor Level 1
edited March 6 in Discrete Products
Current meas 1.jpg

Good Day,

We are troubleshooting the current sensors on the Speedval Evaluation Kit and we would like to understand why the when we probe the current sensor outputs and output from the op amp circuit it does not follow the current waveform. The output from the op amp was smoother but we removed the 2.2uF and 100nF to try and get the signal to follow the current waveform. Any assistance or explanation you can give for this would be greatly appreciated. Thank you.

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Comments

  • Forum_Moderator
    Forum_Moderator Wolfspeed Employee - Contributor Level 4

    Thank you for your post, it has been approved and we will respond as soon as possible.

  • AAnders
    AAnders Wolfspeed Admin - Contributor Level 4

    Hello,

    Can you please identify where you are measuring the 3 waveforms shown in the scope plot?

    Thanks,

    Adam

  • SNaidoo
    SNaidoo Contributor Level 1

    Good Day,

    We were probing the wrong current for the yellow waveform. We probed the correct one and found that it was what we expected. Thank you for your help.

    Regards,

    Surendra Naidoo

  • AAnders
    AAnders Wolfspeed Admin - Contributor Level 4

    Glad you found a resolution!

    I'll close this post. Please start a new discussion if anything else comes up.

This discussion has been closed.