crowbar arrester
crowbar arrester
(OP)
What is a crowbar arrester? Sounds like something for electronic circuits, but I suspect someone else have changed the meaning.
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RE: crowbar arrester
Same technique is used in high-power circuits, too. Especially in VFDs with GTOs, where one must keep DC link voltage below the limit where GTOs cannot be turned off reliably.
Such a crowbar overvoltage protection is built the same way, only with a little more sophisticated limit sensing and triggering. When an overvoltage is detected, it shorts out the DC link and blows the DC link fuse. The action is called "Schutzkurzschluss" or "protective short".
I guess that the same technique can be used in other applications, unknown to me.
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: crowbar arrester
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Over 15 of the next 20 hits were concerning criminal activity involving a piece of metal bar.
Bill
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RE: crowbar arrester