From: "Joseph A. DiVerdi"
Subject: Re: Pentupler voltage multiplier info??
Organization: XTR Systems, LLC
Keywords: voltage multiplier circuits
User-Agent: MT-NewsWatcher/3.1 (PPC)
Date: Fri, 20 Dec 2002 17:14:58 -0700
In article ,
"Smile, it can only get WORSE" wrote:
> Hi Everyone,
> I appreciate all the assistance regarding voltage multipliers, thanks
> to you all.
> However, the comments I am getting seem to refer to standard voltage
> doubler and multiple stage voltage multipler circuits.
> I'm looking for information on a pentupler however, and I DO NOT think
> that the circuit refers to standard doubler and multiple multiplier
> My belief is that the pentupler is VAC in and VDC out, at a 5X ratio.
> It's supposed to have less components than a 5 stage multipier, which
> is why I need info.
> I don't know whether the pentupler is stackable to make a 25X or 10X,
> but I would like to get info on the pentupler if anyone out there has
> any other information.
> On Tue, 17 Dec 2002 16:13:56 -0500, "Smile, it can only get WORSE"
> >Good Day All,
> >I'm looking for pentupler info. I know very little about them, but I'm
> >hoping it can supply a 5X voltage boost at femtoamp to nanoamp current
> >levels (to power the low power stages of a photomultiplier tube).
> >I've done yahoo, askalltheweb, jeeves and ebay searches…no hits.
> >Is there really such a thing or is the pentupler voltage multiplier a
> >rumor…or is it the best kept secret around??
> >All replies appreciated.
I have posted a snippet from the book "Reference Data for Radio Engineers" (Howard Sams & Company,
1975) about voltage multipliers at http://xtrsystems.com/voltage_multipliers.gif. Perhaps it will
help answer your questions.
The snippet is the arbitrary voltage n-tiplier circuit and provides some practical limitations of
the circuit. It can be built with an arbitrary number of stages. Please heed limitations.
I'm not certain how the parts count compares with the "standard voltage doubler and multiple stage
voltage multipler circuits" you mention. Rest assured that this circuit *is* the standard multiplier
and has exactly the necessary number of parts, no more or fewer. ;)
Your belief in AC input and DC output is exactly right but please be advised that the multiplication
process is less than perfect and achieving exact integral multiplication is often difficult to
One wouldn't want to "stack" multipliers rather it is appropriate to build one multiplier with the
necessary number of stages.
Finally, no big secret with voltage multipliers - just need the right references. :)
Hope this helps.
Joseph A. DiVerdi, Ph.D., M.B.A. 970.980.5868 (voice)
http://xtrsystems.com 970.224.3723 (fax)
PGP Key ID: 0xD50A9E33