Re: Eliminating turn off losses in IGBTs


"Nico Coesel" <nico@xxxxxxxxxxx> wrote in message
news:45734082.630568078@xxxxxxxxxxxxxxxxxxxx
"Genome" <mrspamizgood@xxxxxxxxxxx> wrote:

Here you go.....

http://www.genomerics.org/patent/patent.html

Not finished yet, but it's a start.

You will say 'Gosh!'

For now I say: this stuff seems rather trivial and a cumbersome way to
do what has been done for ages in old school SMPSs. I once took apart
a 5kW UPS. It had MOSFET push-pull stages on the bases of the output
transistors (100A / 1000V).

Like you already stated, an IGBT is a combined device with its
advantages, but it is not fast by design.

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Thanks for the critique. I'm probably not up to it.

You might not be wrong but blah blah.

I've just updated stuff with an example, 2kW boost converter off 100V at
100KHz

The IGBT became fast by design.

I suppose you have to think it works and then do the sums, and worry about
other stuff, to see if it is worth it. You, don't, give an example of a 5kW
UPS supply.... Who knows?

I accept the 'trivial' comment because, looking at it, it is. Silly thing is
that if it was so trivial you have to wonder why it's not being done. Either
I'm some sort of idiot or someone else is slapping their heads.....

Go on, shoot me down.


DNA


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