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filter about Lightning Protection

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CARMEN CHAPMAN

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i want to design a filter.it need to protect lightning and need DC Pass Current.
i think they are conflict.how can i put the axe in the helve.or give me some book.
thanks very much.
 

sergio mariotti

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The folllowing descripion may protect ONLY regard the inducted energy.
The most used schematic to put between PowerSupply and Load (the apparatus) is:
1) SERIES: a low value, high power resistor
2) SHUNT: gas discharge tube
3) SERIES: a low value, resistor
4) SHUNT: semiconductor like zener, traszorb, varistor etc.

The gas discharge tube ( a neon lamp) set the voltage no more that 70 V and may absorb many KiloAmperes for few hundred of microseconds.
 

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