RE: Piezo HV Power Supply

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "David Thomson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dave-at-volantis-dot-org>

Hi Pete,

I don't know which system of units you are using, but volt/coul does not
equal farads in any of the four systems I use.  Coul/volts equals farads.
Also, another expression of energy is:

joule = 2*coul^2/farad

Your formula for energy is wrong in that it should be:

joule = farad * volt^2

There is no division by two in the equation with volt^2.

Dave

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Tuesday, April 09, 2002 2:27 AM
To: tesla-at-pupman-dot-com
Subject: RE: Piezo HV Power Supply


Original poster: "Pete Komen by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<pkomen-at-zianet-dot-com>

Dave,

1 Farad = 1 volt / 1 coulomb

Energy in Joules = C * V**2 / 2

Given cap size and voltage, the rest is easy.

Pete Komen



Original poster: "David Thomson by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<dave-at-volantis-dot-org>

Hi Ed,

How did you measure the volts, coulombs, and joules?  Volts times coulombs
should equal joules.

Dave