Re: 48kW DRSSTC

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Steve Ward <steve.ward@xxxxxxxxx>

This was directed at Conner, but my coils have survived several
primary strikes as well.  I think a good part of it is simply the
bridge layout with good decoupling as well as solid feedback signals.
Ive even had a racing spark short out some primary turns, left some
discoloration of my copper primary, but the IGBTs didnt seem to care.

But, i still dont fully understand what causes the failure from a
strike, when we figure that out and a solution to the problem, then
DRSSTCs will run care free ;-).

Steve Ward

On 12/2/05, Tesla list <tesla@xxxxxxxxxx> wrote:
> Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
>
> Hi Steve,
> How did you keep hits to the primary from killing your bricks??
>
> Gerry R
>
> >Original poster: Steve Conner <steve@xxxxxxxxxxxx>
> >On my current research coil, I used 40N60s and set the primary
> >current limit to 400A. (the frequency is around 220kHz.) I have got
> >sparks up to 4.3 times the length of my secondary, and too many
> >flashovers and primary strikes to count, but never lost any IGBTs
> >yet. You can't get less bench time than none.
> >Steve Conner
> >http://www.scopeboy.com/
> >
>
>
>
>