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Power suply overvoltage protection

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moki

New Member
What is the best way to protect circuits from overvoltage. I recently had a case where a 5vdc switching power supply failed and went up to 9vdc. This fried the circuit boards that it supplied. MOVs might be a bit slow , I think. Any ideas, circuits etc will be appreciated.
 

alec_t

Well-Known Member
Most Helpful Member
Google for 'crowbar circuit'
 
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