How to Design Ethernet SPD with TVS, Gas Tube, and Digital Activation Indicator?

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#1 21684030 26 Feb 2020 19:22

david az david az

Anonymous

Post #1
21684030 26 Feb 2020 19:22

Hi

I want to design an Ethernet SPD ( surge protection) with indication.
like most of the SPD's I'm going to use a TVS ( for quick response) and a gas tube. what i need to add is an indication when a lighting hit the communication line and activate the SPD.
i want a digital pulse ( that i can count the numbers of activation with a controller) or if it not possible maybe a visual indicator.

Any ideas how to Design the above?

thanks
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#2 21684031 29 Feb 2020 22:53

Giovanni Di Maria Giovanni Di Maria

Anonymous

Post #2
21684031 29 Feb 2020 22:53

To detect lightings you can build a little and small tuning circuit below 300 Khz. You can amplify the signal received, and square it. Then you can count these impulses using a little MCU and a display.
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