[ARC5] Zener Question

John Hutchins olegerityincj at austin.rr.com
Mon Jan 10 08:08:28 EST 2011


Robert, All -
If you use a Zener Diode in series as described below would you not have 
to shunt across the terminals with a capacitor, to limit,  short out,  
noise caused by voltage breakdown events?
Hutch




On 1/9/2011 12:31 PM, Robert Eleazer wrote:
> Stupid question:
>
> As far as limiting PS output voltage why could you not take a suitably rated zener and put it in SERIES with the B+ line?  For low current drain levels I think this would "clip" the voltage by the rating of the zener, wouldn't it?
>
> This would not provide regulation but simply a constant voltage drop, which is what I think you want to run a Command Set safely.
>
> So if you have a PS that is putting out 300V and you want 250 or less put a 60V zener in series to get it down.



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