I received and set up a DC-DC power supply using the breakout board I mentioned in a previous post. Unfortunately the traces in the breakout board didn't supply sufficient capacity to keep the voltage up high enough to preclude the dread yellow lighting bolt...and the Pi 5 reported voltage at around 4.89v. The buck converter was putting out 5.2v so I decided to swap the breakout board with a right angle USB-C pigtail that claims 22g wiring. And bingo, that worked just fine and the system now reports over 5.1v. I updated the config file to suppress the "not enough power" warning and things seem to be working just fine.
Here's the USB-C pigtail I'm using...
https://a.co/d/2t6jAYp
Here's the buck converter I'm using...
https://a.co/d/57IVC9A
As I mentioned in my previous post I live off grid and use a 12v DC power system in my cabin, and I only turn on an AC inverter when I really need too (like vacuuming). I have "normal" routers, TVs, etc but I always buy appliances that have "wall warts" and then build a buck/boost converter to keep things DC-DC which avoids the DC-AC-DC conversion inefficiencies (yes, there are still some boost-buck conversion losses, but less than the DC-AC-DC losses).
So for me, finding a solid way to power the Pi 5 with full power without using the "official" AC-DC power supply is a big deal. I know I'm a small and special case so I don't expect the Pi Foundation folks to mess around building special power supplies, but I think there is a market out there for folks that want a DC only solution to power the Pi 4 and Pi 5 units.
Here's the USB-C pigtail I'm using...
https://a.co/d/2t6jAYp
Here's the buck converter I'm using...
https://a.co/d/57IVC9A
As I mentioned in my previous post I live off grid and use a 12v DC power system in my cabin, and I only turn on an AC inverter when I really need too (like vacuuming). I have "normal" routers, TVs, etc but I always buy appliances that have "wall warts" and then build a buck/boost converter to keep things DC-DC which avoids the DC-AC-DC conversion inefficiencies (yes, there are still some boost-buck conversion losses, but less than the DC-AC-DC losses).
So for me, finding a solid way to power the Pi 5 with full power without using the "official" AC-DC power supply is a big deal. I know I'm a small and special case so I don't expect the Pi Foundation folks to mess around building special power supplies, but I think there is a market out there for folks that want a DC only solution to power the Pi 4 and Pi 5 units.
Statistics: Posted by madmacks59 — Sat Feb 03, 2024 2:32 pm
