Re: term understanding: voltage reversal.

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

Original poster: Jim Lux <jimlux-at-earthlink-dot-net> 

At 08:03 AM 2/19/2004 -0700, you wrote:
>Original poster: "Crow Leader" <tesla-at-lists.symmetric-dot-net>
>----- Original Message -----
>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: <tesla-at-pupman-dot-com>
>Sent: Wednesday, February 18, 2004 7:04 PM
>Subject: Re: term understanding: voltage reversal.
>
>
> > Original poster: Bert Hickman <bert.hickman-at-aquila-dot-net>
>
>[cut]
>
> > dielectric and premature failure. The estimated % voltage reversal can be
> > estimated if you know the "Q" of the circuit:
> >
> >     % Vrev = 1.57*Sqrt(1/(Q^2-1))
>
>I don't understand this formula. Can you add more brackets? It's invalid for
>a Q of 1 if it's (Q*Q) -1 and otherwise it's just 1.57 * sqrt (Q)
>
>KEN

That formula looks right. It doesn't work very well for low Q's (it's the 
formula for an underdamped oscillation)  I can't recall where it breaks 
down, but it's right around critically damped (or where it blows up at Q=1).