Eliminating turn off losses in IGBTs

[Genome]

Here you go.....

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

Not finished yet, but it's a start.

You will say 'Gosh!'

It's an explanation of my crap patent explanation

http://www.genomerics.org/patent/final.pdf

Who's the bloke from Viet Nam who's been having problems downloading that
one? There have been 476 attempts of which 318 have been from one IP.

DNA

 

[Nico Coesel]

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.

 

[Genome]

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.

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

 

[Jim Thompson]

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

Don't worry about it, Genome. As they say, those that can, do; those
that can't spout platitudes like, "rather trivial".

All good designs look "rather trivial" when viewed by ignorami...
Bloggs comes to mind... everything I do is "rather trivial" in his
eyes ;-)

...Jim Thompson

 

[Joerg]

Don't worry about it, Genome. As they say, those that can, do; those
that can't spout platitudes like, "rather trivial".

All good designs look "rather trivial" when viewed by ignorami...
Bloggs comes to mind... everything I do is "rather trivial" in his
eyes ;-)

You could almost generalize it. Everything we all do is often considered
trivial and offers of consulting help are initially turned down. Until
the day of reckoning cometh (a.k.a. production ramp-up) where it plain
don't work and it's almost too late...

 

[Genome]

Don't worry about it, Genome. As they say, those that can, do; those
that can't spout platitudes like, "rather trivial".

All good designs look "rather trivial" when viewed by ignorami...
Bloggs comes to mind... everything I do is "rather trivial" in his
eyes ;-)

...Jim Thompson

Nooooooo.

It's not that I don't do it myself and it's not as if I don't do it to
others so why not do it to me? I don't know if this one has been spotted and
it's not as if I have a half arsed chance of becoming a millionaire over it.

If someone shoved it up me bum I'd be a skeptic too. Still am. The concept
might be trivial but the details are harder....... as if.

There is probably an IEEE paper that deals with this stuff anyway.

However

**** THAT IT'S PRETTY CUTE.

DNA

 

[Mike Monett]

If someone shoved it up me bum I'd be a skeptic too. Still am. The
concept might be trivial but the details are harder....... as if.

There is probably an IEEE paper that deals with this stuff anyway.

**** THAT IT'S PRETTY CUTE.

DNA

I think it's a great idea. Normally, nobody would think of zapping a device
the way you did to get it to do what you want. I love things that "break
the rules".

There may be an IEEE paper that references something like it, but they
often screw it up and you can easily improve on their method.

I think it's original, creative, and very elegant. I love to see that kind
of thinking. Congratulations, and thanks for posting it.

Regards,

Mike Monett

Antiviral, Antibacterial Silver Solution:
http://silversol.freewebpage.org/index.htm
SPICE Analysis of Crystal Oscillators:
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Noise-Rejecting Wideband Sampler:
http://www3.sympatico.ca/add.automation/sampler/intro.htm

 

[Nico Coesel]

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.

The real-life example looks pretty clever indeed. Altough it still
makes me wonder how an NPN transistor driven by a push-pull stage
would perform.

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.....

Perhaps the people that use IGBTs don't look any further.