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Re: Bulk Order 15kW SSTC Boards
Original poster: Crow Leader <tesla-at-lists.symmetric-dot-net>
On Wed, 24 Sep 2003, Tesla list wrote:
> Original poster: dhmccauley-at-spacecatlighting-dot-com
>
>
> The 10kW rating is based upon the PlasmaSonic II operating with IXFN68N50
> FETs and on simulations and maximum component stress analysis for 10kW
> level.
> For 10kW operation, FETs are using a 60% derating on current, and about 70%
> on voltage. Other components are rated simularily and I try to use NAVSO
> deratings
> if possible. I am also assuming that a certain junction temperature on the
> FETs is not exceeded and that proper cooling is provided for the power
> levels necessary for running.
> For example, for 10kW (which is ALOT of power), a liquid cooled heatsink
> would work best making sure the cold plate (heatsink) maintains at least
> 25-30 degC temperature.
Room temperature heatsink power elctronics? It's too bad things here are
now marketing hype first, facts second.
KEN