[Prev][Next][Index][Thread]

Modeling a magnifier




----------
From:  Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent:  Sunday, March 15, 1998 3:52 PM
To:  Tesla List
Subject:  Re: Modeling a magnifier

Hi Antonio, all,

> From:  Antonio C. M. de Queiroz [SMTP:acmq-at-compuland-dot-com.br]
> Sent:  Wednesday, March 11, 1998 10:08 PM
> To:  Tesla List
> Subject:  Re: Modeling a magnifier
> 
> Malcolm Watts wrote:
> 
> >             It is beginning to look as if a number of aspects of
> > Antonio's modelling is correct.
> 
> Well, physics cannot be so wrong... Your system uses L3>>L2, right?
> (What are the inductance and capacitance values?)

L2 was 355uH,  L3 is about 5uH from memory (notes at home).

> In this condition C2 is small, and the system can only resonate
> producing beats while the primary is connected, as in the first model
> that I proposed. As Jim McVey observed, it is impractical to have a 
> distributed C2 such that L2*C2=(L2+L3)*C3, what would produce beats 
> after the opening of the spark gap (second model, with C2), if L2<<L3.
> There is another possible working behavior for the magnifier, that
> is the primary/secondary system being used as a CW generator, but
> most of the members appear to agree that this is practically impossible.
> (Or not?)

Not in a cap discharge system because the primary decrements as the 
cap empties. No reason why not if the primary is driven from a CW 
source. In this case, system Q limits final amplitude.

Malcolm