OVERVOLTAGE PROTECT

[moutouloss]

I need some circuits overvoltage protect for 15VDC, 30VDC, 50VDC with rele or not.

Thanks!!.

 

[Styx]

search for crowbar circuits

 

[moutouloss]

Thanks very much!!.

 

[stevez]

An old, possibly obsolete IC is the MC3423P -it's shown in the ARRL Handbook as one of several ways to protect against over-voltage situations.