Re: LTSpice model for a SiC MOSFET

On 27/05/2025 7:51 am, Cursitor Doom wrote:

On Tue, 27 May 2025 00:49:48 +1000, Bill Sloman <bill.sloman@ieee.org>
wrote:
 

On 26/05/2025 8:17 pm, Cursitor Doom wrote:

On Wed, 21 May 2025 03:25:11 +1000, Bill Sloman <bill.sloman@ieee.org>
wrote:
>

On 21/05/2025 12:04 am, john larkin wrote:

On Mon, 19 May 2025 09:33:28 -0400, legg <legg@nospam.magma.ca> wrote:

>
The drain swing is actually 1.67 times the supply voltage, but it does
need two switching devices and a specially wound transformer (and we
know how reluctant you are to design them or get them made).
>
It is probably going to be too expensive for the application, and we'd
be grateful for your insights into a cheaper alternative. I can't think
of one.

>
I'd keep it simple and repurpose a backwards commodity CCFL ($0.50)
transformer, in a low frequency (20-50KHz) buck regulator 'of sorts'.

>
A ccfl transformer is ideal for the HV step-down application, and dirt
cheap is a side benefit.
>
They often have several windings, which helps build oscillators. More
details might involve using a search engine.

>
It's not the sort of component that a search engine will find for you.
>
A manufacturer and a part number would be helpful.

<...>
>
Try asking Grok, Bill. Or else your preferred AI assistant. Works for
me.

>
AI does produce quite a bit of nonsense, and we know how
enthusiastically you embrace implausible nonsense.
>
Some of us are more interested in objectively verifiable reality.

 Well, it does at times produce a lot of nonsense, I grant you.
However, it would only cost a few moments of your time to try and you
might well be pleasantly surprised. It's getting better and better as
time goes by.

The grand-daughter of an old friend works for Microsoft and has found that asking  one AI program to create prompts for a second AI program saves her a lot of time. She's married to a Ph.D. chemist who works on lithium batteries - as an undergraduate I seem to have chosen my friends remarkably wisely.
I'm not as well-placed as she is, and I'll wait until the old friend starts using it - with two sons who work for Microsoft he's well placed to get access when it is worth having.
--
Bill Sloman, Sydney