Surge problems

leonel

New Member
I have surge problems in my input. If I put 2kV pulses at 1.2us in the circuit attatched my microcontroller goes "crazy".
What do you suggest to do to prevent surge problems using my circuit?
 

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The all schematic.
My pulses sources comes from an MIG (Modular Impulse Generator).
I thought to put a VDR between my inputs, but it's enough?
 

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Try putting the transorbs after the resistors, not before.
 
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