Re: HV protection for receiver input?

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#2228

From: Gym Bob
Date: Thu, 07 Aug 2003 00:43

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Not sure about the Triac but zeners are the fastest and the gate of the
Triac should only act like a diode until the whole thing turns on and backs
it up.

Zeners are usually used in parallel with MOV's for the speed, beating the
MOV, of course.

"Sam Goldwasser" <sam@saul.cis.upenn.edu> wrote in message
news:6wispanzgs.fsf@saul.cis.upenn.edu...
> "Gym Bob" <NoThanx@notspam.com> writes:
>
> > Hell, put a zener diode into the gate of a Triac and use crowbar
overvoltage
> > protection! When a high enough disturbance makes the zener conduct the
triac
> > will short the whole thing right to ground/frame until the charge is
gone
> > then release.
>
> But slow acting.....
>
> --- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
>  Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
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>
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Date: Thu, 07 Aug 2003 00:43:23 GMT
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From: "Gym Bob" <NoThanx@notspam.com>
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