[AMPS] Zener screen supplies

measures 2@vc.net
Sun, 15 Apr 2001 18:41:43 -0700


>
>On Sat, 14 Apr 2001 11:23:05 -0700 measures <2@vc.net> writes:
>>
>
>>>   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
>>
>>
>
>Hi Rich,
>   And that is for why?   

€  It doesn't take 500v to operate the gate.  Mo' is not always mo' betta

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