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Aux Board

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nkara34
nkara34 Contributor Level 1
edited February 10 in General

Hello,

In the CRD60DD12N reference design, the 6.5V voltage generated on the aux board is not reaching the main board. Upon tracing this path, we found that this voltage is not being generated by the aux board. Additionally, the CON2 (J344) connector has been left open, which prevents the isolated voltage measurement IC, op-amps, and gate driver ICs on the driver board from receiving 5V power.

Could you please help us with this issue?

Thank you

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  • Forum_Moderator
    Forum_Moderator Wolfspeed Employee - Contributor Level 5
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    Thank you for your post, it has been approved and we will respond as soon as possible.

  • Hzz
    Hzz Wolfspeed Employee - Contributor Level 1
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    Hi Nkara,

    Actually, the J344 was connected to the winding (2,8) of T12 via two jump-wires on the Aux power board,

    due to the creepage limitation. Please refer to the following image.

    image.png

    nkara34
  • nkara34
    nkara34 Contributor Level 1
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    Thank you very much for your reply. This was helpful for me

This discussion has been closed.