Amps
[Top] [All Lists]

[AMPS] Zener screen supplies

To: <amps@contesting.com>
Subject: [AMPS] Zener screen supplies
From: 2@vc.net (measures)
Date: Sat, 14 Apr 2001 11:23:05 -0700
>
>
>On Thu, 12 Apr 2001 09:13:55 +0100 "Steve Thompson" <g8gsq@qsl.net>
>writes:
>
>Hello Steve & the group,
>   I finally got a moment to read all this screen mail...
>
>   The original query was about how to protect a "string of zeners" shunt
>regulator.
>
>   One answer is with a SCR crowbar across the zeners, to which Ian
>mentioned  a reference (which I haven't seen) & then alluded to other
>circuitry.
>  
>  Triggering may be simply implemented by connecting the gate of the
>crowbar SCR to a small value R in series with the bottom of the zener
>string.  So, in this case, the other circuitry is a single R.
>
good point.  It might be better to connect the SCR gate only across the 
bottom zener.  


cheers, Marv 

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


--
FAQ on WWW:               http://www.contesting.com/FAQ/amps
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com


<Prev in Thread] Current Thread [Next in Thread>