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RD-195 current sensor selection

mark 16417
Prodigy 140 points

Hi

I am evaluation the the RD-195 Arc detection circuit board, question as below,

1. How does the board judge the Arc?

2.How to select the coil of current sensor?

  • 0
    TI__Genius 14270 points

    Hello Mark,

    The RD-195 works by dynamically filtering out potential interfering signals, such as inverter switching noise, and then looks for an increase in the overall noisefloor of the system.

    The current transformer should be selected such that it will not saturate with the maximum DC current that could occur, and it should transfer the frequency range of 20kHz to 100kHz to the secondary.

    Regards,

    Chris O