Re: FW: Updated JHCTES Ver 3.3

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

Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>

Hi John,

I tested JHCTES couping tonight. It did very well!

I compared it to ACMI and MandK testing we did a while back using the same
parameters as previous into JHCTES.
It was close, but still off by more than I expected. Then I realized the
coil turns is calculated by JHCTES
and therefore the previous testing would not match. So I adjusted Cp to
move the calc'd turns but found that
the coulping factor didn't change (I assume the coupling factor in JHCTES
is a lookup value from a table?).
The only way I could manage to get the programs to compare was to input
JHCTES cacl'd turns into ACMI (this
did the trick). As you know, ACMI and MandK can calc better than we can
measure.

ACMI ----- Mu = 461.2uH, K = 0.1696
JHCTES--- Mu = 440.8uH, K = 0.165

So it looked much closer at that point.
Excellent work!

Bart Anderson


Tesla list wrote:

> Original poster: "John H. Couture by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <couturejh-at-worldnet.att-dot-net>
>
> It should be noted that it is possible to obtain couplings (K factors) over
> 1.00 with this program. This can happen with some faulty TC designs and is
> the problem with programs that have a lot of variables. To avoid these
> problems the TC designer should examine all outputs after he clicks on
> "Calculate" or "Recalculate" to be certain all of the TC parameters are
> resonable variables and properly coordinated. I have limited some of the
> inputs to prevent faulty designs but I do not want to hamper the versatility
> of the program with too many restrictions.
>
> If you have any questions or comments regarding the program I would be
> interested in hearing from you.
>
> John Couture
>
> ------------------------
>
> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Tuesday, June 12, 2001 7:01 AM
> To: tesla-at-pupman-dot-com
> Subject: Updated JHCTES Ver 3.3
>
> Original poster: "John H. Couture by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <couturejh-at-worldnet.att-dot-net>
>
> All -
>
> The JHCTES Ver 3.2 has been updated to Ver 3.3 with mutual inductance and
> coupling. Click on
>
>     http://home.att-dot-net/~couturejh/
>
> Don't forget to check the Primary to Secondary Clearance which should not be
> negative for a correct coupling.
>
> If you have tested your coil I would be interested in how the test coupling
> compares with the Ver 3.3 coupling.
>
> John Couture