Re: Paralleled Primaries / Separate Drive Circuit - SSTCs ? ? ?

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

Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>

Hi Captain,

At 01:31 PM 9/17/2003 -0400, you wrote:


>Has anyone explored the use of paralleled primaries in SSTC use.
>
>For example, say I had two SSTC full-bridge power supplies each with
>their own dedicated primary winding and of course both supplies
>switching frequency are synchronized.  Now i take those two independent
>windings and use them either interweaved, or top/bottom configurations
>and run both at the same time.
>
>Neglecting losses, I would assume that two 5kW power supplies combined
>like this would appear like one 10kW supply to
>the secondary coil.  Is this correct???

Yes!


>If so, perhaps this is a way to increase power even more to a SSTC when
>the maximum impedance of one coil limitations
>are met.

The only caution I would have is that the two primaries will strongly 
couple to each other.  Thus, you need to open circuit one while the other 
fires.

Cheers,

         Terry


>Suppose I had four independent synchronized SSTC drivers with four
>independent primaries . . . Hmmm . . . . could
>get interesting!
>
>The Captain