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

Re: Terry's DRSSTC - First light ;-))

Original poster: "Paul Benham" <paulb@xxxxxxxxxxxxxxxxxxxx>

Hi Terry,

I hope it works/helps and look forward to seeing how you get on.

Cheers,

Paul.

----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, March 16, 2005 1:03 AM
Subject: Re: Terry's DRSSTC - First light ;-))


> Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>
>
> Hi Paul,
>
> At 08:54 AM 3/8/2005, you wrote:
>
> >Could a DC blocking capacitor be added in series with the ground
connection
> >to the tesla coil secondary?  In the event of a strike to the primary the
DC
> >bus caps cannot then discharge through the IGBT into the ground via the
> >secondary.  Just an idea, maybe there is greater problems than this to
worry
> >about or this just adds further problems.
> >
> >Cheers,
> >
> >Paul.
>
>
> I have been thinking real hard on this %:-)
>
> I blew two more IGBTs Sunday when a streamer either hit the primary again
> or the DRSSTCs case at 41 inches!!!  They guy closest said it hit the case
> where others though the primary got hit (no cam this time).  Happily, it
> just blows pairs of IGBTs which is not bad to fix at all!
>
> A DC block all by itself still lets bad RF through, but simply adding an
> inductor forms a bandpass filter that may indeed do the trick!!  I wrote
up
> the details here:
>
> http://drsstc.com/~terrell/notes/DRSSTCprotec.pdf
>
> Thanks for the starting idea!!
>
> Cheers,
>
>          Terry
>
>
>