@davew Thanks for asking. I don't use MD - actually I can't use MD. It's part of my neurodivergence. In addition to dyslexia, I have some vision differences from normals. I need to see the shape of words, phrases, etc. to read, including to read what I am writing. MD is very difficult for me to read. Dyslexia means I'm already wrestling with coding/decoding ideas into words. MD adds another layer of decoding/coding.
So how do i write? I use WYSIWYG editors. TinyMCE is great.
@econproph @davew Do you know what about Markdown makes it hard to read for you? Is it the extra characters around text? Or something about the rendering of fonts (monospace, single-size)?
@davew @fvsch @econproph This is why I usually use the footnote-link style when I'm writing Markdown. An example I wrote recently, not including the footnote definitions, which are at the end of the section. This doesn't completely eliminate the "you have to look at the details" problem, but it does reduce it enough to be manageable.
At that point, I think you wouldn’t be worrying about pulse-current
ratings; the MOSFETs would be capable of crowbarring the panels
continuously. This could be desirable for fire protection purposes:
an emergency signal could put the MOSFETs into a continuous crowbar
state, greatly reducing the risk of, for example, shocking someone or
continuing to contribute to an electrical fire. As of 2018 ISEP, [US
NEC §690.12 Rapid Shutdown of PV Systems on Buildings][1558] requires
“not more than 30 volts within 30 seconds of rapid shutdown
initiation” one meter from the point of entry inside a building for
this purpose.
However, for low-voltage circuits, possibly you might as well just use
MOSFETs in series with your load in the conventional way. If you were
running your panels at 200V or more, the advantages might be more
compelling: you’d need a bigger MOSFET to crowbar the panels, but your
9¢ BT152 could control 4kW instead of 720W.
In other SCR-related news, I found [the General Electric SCR Manual
from 01972][1557], a 712-page book that began as an appnote. On p.5
(28/712) it says that some thyristors might require a turn-off time
“as high as several hundred microseconds”.