The goal is to emulate behaviour of IBM XT PC host interface comprised of logic ICs and to support virtually all of existent XT keyboards in the result. I hope so at least. You can get firmware and ...

In forward/charge/sink mode where power is applied to VBUS, PMID = VBUS. In reverse/OTG/source when not power is applied at VBUS, the default voltage for PMID = VBUS=5V. Regarding 1, no. PMID can only ...

I ran across the project just after making schematics for the Supercon badge and petal matrix. Being on a roll, I decided to take [Skyhawkson]’s work as a starting point and create KiCad schematics.

If not, please let me know the solution for measuring the current from isolated high voltage supply. Thanks for your prompt reply, I do not have the exact schematic of AMC1200 for my circuit. Instead ...