EpicFailGuy
@EpicFailGuy@lemmy.world
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- Comment on HP laptop rejects Dell PSU on the basis of branding.. apparently. Crappy design, asshole design, or good design? 3 weeks ago:
ahhh, I miss the days of analog power … these days almost every charger has power negotiation using proprietary protocols. Some more popular than others.
Look it up on youtube, there’s a bunch of people that dedicate a shit ton of time to reverse engineer the negotiation phase with an oscilloscope. That’s why you can now buy charging modules that convert analog to digital.