... One is that you put the fuse (in parallel? dont do that) ...
Thanks, but they're actually Polyfuses, and they work extremely well in parallel. We even heatshrink them together for
tighter thermal "coupling".
on the output of the bridge, and it should be on the input ...
I don't intend to place them there, I just needed a "test point" and that artwork looked sort of relevant to an observer :-)
It's a current "pick-off" point and a thermal break (for my FLIR E8+ .. oops I meant E4) to test the 3+3oz Cu temperature.
Usually I ALWAYS use 4+4oz, but had a short cut-off time for delivery before xmas. I usually have all protection somewhere
where it's user-serviceable, NEVER on the main PCBs anyway.
... lack of high frequency bypassing. ...
There's enough HF filtering, just not shown on the pix. All done as per design notes, but I do like to see what goes "wrong"
under those circumstances. It's all part of proper design / testing.