the Hearth @Felthry@awoo.space

PCB Litz wire, braided across a multilayer pcb

especially when you need the inductance to be fairly flat with DC bias, because you need to operate anywhere from zero to a hundred amperes output

the problem I suppose is that high inductance (and in this context, 32μH is high) and high current capacity just don't mix well

https://www.mag-inc.com/Media/Magnetics/Datasheets/0058740A2.pdf these are the cores, if anyone cares. Sintered metal powder, because ferrite just doesn't cut it

they'll be operating at about 5% saturation, which means their inductance won't change much over the full range of currents this thing is designed for

plus we also already have the welding cable. it's really nice welding cable too, super flexible and has a nice 190 ampere current rating, almost double what we actually need to use it for

to clarify, the "for some reason" was entirely me being facetious. I completely understand the reasons

turns out you can get high-flux cores without too much trouble, and we might even be able to use ungapped toroids--though we're going to have to put no less than nine stacked cores into this inductor with three turns of actual welding cable because they don't make AWG #2 magnet wire for some reason

this is going to give us an inductor core that is over a foot long and only three inches wide, which will probably look kind of silly.

We need two 32μH inductors with a saturation current greater than 100A. This is going to be fun to try to make. x.x

Where do you even buy such large cores? I don't think we can use ferrite because its saturation field is so low, so it'd need to be sintered iron powder or laminated electrical steel....

*some unspecified number of beeps*

Actual conversation I just seriously engaged in:

them: "Well, if you're doing it the safe way, you--"
me: "This is research. We have zero intention of doing things the safe way."

Found this while doing some research for work. I just llike the way this is phrased. I have no idea what a bleb is, but I guess it's the middle part of an E-core ferrite?

Petition to stop using the awkward name "double-u" for w and call it "wynn", after the letter ƿ that used to represent that sound in Old English

We can still use the letter w instead of ƿ, because ƿ looks a lot like a p and anyway changing letters is harder than changing names for letters, let's just call it something one-syllable like literally every other letter in the english alphabet

*struggles with a boss for hours*
*goes to buy more healing items because maybe that will help*
*discovers that actually yes it's worth it to grind money to be able to actually buy late-game armor rather than toughing it out with early-game armor*

Huh.

okay I take that back these ice block puzzles are frustrating as hell

today we learned: tic tacs are marketed as sugar free despite being nearly 100% sugar, because they are intentionally made to be just less than 0.5 grams each, and anything containing less than 0.5g of sugar per serving can legally be marked as sugar free in the US

the music is also fantastic, just a note

I should put more boktai music in my vgm selection thing

people forget the boktai series exists but let me just say it's a great series

and has some really well-designed block pushing puzzles, too (generally block pushing puzzles are either too convoluted and overwhelming, or too simple to even count as puzzles) and manages to make them not too terribly repetitive either