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AFE031: About AFE031 DC solution check

ming wu
Prodigy 10 points

Part Number: AFE031

Dear，

In my application，I want to add a monitor function in my Solar panel to test the current/voltage and temperature. I want to use the PLC to communicate. I have found AFE031 reference desgin in TI web, but it is AC solution. 

So my question, If AFE031 can use in DC model? My Solar panel is about 80V, and if I have some succeed case for this application? Great thx.

  • 0
    TI__Expert 5850 points
    Hello Ming Wu,

    It is possible communicate on a DC power line. Bear in mind that you will need to have inductors in series on the line to provides enough impedance to the power-line-communication signal, such that the power supply, which can have a very low impedance, does not interfere with the PLC-signal modulation. There are 2 links below to documents that are helpful for communicating through a DC power line. The first is a reference design and the second is a test report of the reference design. Let me know if you have any question and I will be happy to assist.

    www.ti.com/.../tidu160.pdf

    www.ti.com/.../tidu168.pdf

    Best regards,

    Errol Leon
    Texas Instruments
    Precision Op Amp Applications