While we wait for Kev’s order to come in, I’ve been working some more.
The 3 designs are far more unified, with more uniform component choices, such as caps. You can see on the left a new couple of pads labelled FH1. This is for the new fuse holder. Instead of direct board mount fuses, I found a small fuse holder.
They don’t look that tiny, but this is the smallest fuse holder in LSCS’s extensive library of products. 9.73x5.03mm. And the fuses are user replaceable, and also support up to 125V if you wish to make your own VPU with a higher output or for other devices too. Very cool.
Boards currently measure around ~20x35mm. Trying to maximise space to get it lower. Almost definitely will be going down to XT30 I think.
PS: XT30 upgrade done, takes 3.5mm height off the board without changing anything else. And I can totally work on optimising further.