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On Wed, 8 May 2024 19:40:49 -0400, bitrex <user@example.net> wrote:Indeed there's lots of stuff off the shelf but for the application I have in mind the it's is acting more like a low frequency self-oscillating Class D, tracking a control voltage.
On 5/8/2024 6:32 PM, john larkin wrote:That's not SiC territory. Possibly GaN if you want a tiny MHzOn Wed, 8 May 2024 17:15:27 -0400, bitrex <user@example.net> wrote:>
>On 5/8/2024 10:28 AM, John Larkin wrote:>
>>Jill Biden reportedly told her husband some time ago to “Stop it, Joe,>
stop it now.” Good advice that he continues to ignore — at his peril,
and ours.
>
https://mondoweiss.net/2024/05/genocide-joe-is-beginning-to-stink-like-lyndon-b-johnson/
>
What's your favorite SiC mosfet?
>
Why no buy WOLFSPEED:
>
<https://www.mouser.com/ProductDetail/Wolfspeed/C3M0280090D?qs=nxZbHzLpdvfcUe1hs5VeOQ%3D%3D>
What's wrong with that one?
>
I've used C2M0280120D and it works fine. Gate drive is a nuisance, but
that's true for all pure SiC parts.
>
Ope, I meant to write "why not buy...", it looked like a nice part. More
standoff voltage than I'm accustomed to requiring for most projects,
though.
>
I may have a need to roll my own hysteric synchronous buck soon, at an
astounding 12V..
>
switcher.
SiC has amazingly low capacitances compared to high-voltage silicon.
But the gates have to swing to levels like +15 and -5. Fast.
Why design a switcher, unless it's for fun. You can get a whole 2-amp
buck switcher, great internal reference, current and thermal limited,
spread spectrum, for 19 cents.
Eventually some damned IC jock intgrates our fun circuits.It's the future now, we can design our own mixed-signal ICs at the local Starbucks, the IC jocks don't have to have all the fun.
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