3 ms·

Seems like there is a lack of power supply design expertise there, maybe due to certification requirements or possibly just the margins on a replacement PSU is

Seems like there is a lack of power supply design expertise there, maybe due to certification requirements or possibly just the margins on a replacement PSU is much less than something like a flash cart or HDMI solution. I personally wouldn't dare to design a PSU: I would probably burn my house down. My hope is that certified designs that target various DC voltages will cover a lot of use cases. EDIT: Oh sorry I misread your comment. You are claiming there is a large selection already? I don't see it as often as I see other 'mods'. Are you speaking about any particular vintage computing/gaming community in particular? For consoles all I see is junk coming out of China. I've been burned too many times by that.

telgareith 2y ago
Its not quite turnkey, but USB PD (maybe with PPS, which lets the device specify voltage and current directly instead of simply picking a profile) from a known good manufacturer, and a trigger board (crapshoot there unfortunately) covers 99% of stuff. Also, You can buy SMPS modules on mouser or digikey now for under $10. Or if you're lucky jameco will have it. Sometimes even rotten chinese garbage can be useful- I have a portable USB supply for my DSLR that was originaly powered by seriously unsafe means- but the battery drm/sensor fakeout is good, so I just used the 9v USB-PD profile and a linear regulator. Canon makes one, I seem to recall it was AC only, produced whine in the audio capture in video mode, and was nearly $100.