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Reference design of CRD-22AD12N: the VAB voltage sense circuit

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gkim
gkim Contributor Level 3
edited March 2023 in General

Hello,

With respect to the reference design of CRD-22AD12N, I have a question on the signal conditioning circuit for the AC input voltages on the main board.

For instance, the signal conditioning circuit for the VAB voltage sense is captured and uploaded as below.

VAB Voltage Sense.png

Where does the signal LAB_G connect to?

I cannot find out its connection.

Thank you for your consideration.

With regards,

GKIM

Comments

  • TBhatia
    TBhatia Wolfspeed Admin - Contributor Level 5
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    Hello, thank you for your message. A member of our technical team is looking into your questions and we will respond shortly. 

  • Haitao
    Haitao Wolfspeed Employee - Contributor Level 1
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    Hi Gkim,

    please refer to the following circuit.

    image.png

    BR,

    Kevin

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