That's a good success.I've successfully reused a generic GaN PD charger with the Rock5b. The Rock5b has a builtin voltage regulator to generate the various required board voltages from the negotiated power input. It will select the highest available PD voltage up to 20V, or you can tell it to limit itself to 12V which wastes less power in the regulator. Though I didn't have this problem with the Rock5b and my supply, many reported timeouts in PD negotiation with their PD supplies, forcing it to supply 5V at 3A which is insufficient and caused boot loops. The solution was to use a simple non PD 12V supply.On the other hand, if you have been able to design an electronics project that reliably draws 12V from a reused PD charger, I'd be interested.
I've tried using the Pi5 PD supply with the Rock5b it it worked fine.
For my project I was thinking more along the lines of powering a 12V light bulb for Fido's dog house salvaged from the interior of a junked automobile.
Statistics: Posted by ejolson — Wed Apr 10, 2024 3:37 am