Hello,
In my project, I have two USB3 devices that I connect to Pi4B. Both of them are USB-powered (only a single USB-C port on them) and apparently I run out of power which is supplied by the Pi through USB ports. A few details:
- These USB devices may eat up to 10W (2 amps @ 5V) in peak conditions, so there is no way the Pi will support that.
- I have sufficient 5V amps from the PSU available in the same casing.
- I have my own hat which supplies the power to Pi, currently through USB-C, but I plan to move to GPIO pins 2&4 to reduce wiring. That part is easily modifyable.
- I don't want to solder anything to these external USB devices themselves - to keep them an off-the-shelf component for easy spares.
- I would also avoid modifying the USB cables to add more 5V amps to the devices (same reason as above).
- Solution low cost is a requirement.
The question is, are there any elegant ways to inject a bit more 5V current to USB3 connector of Pi? Or how to bypass the current limits for USB?
Thank you in advance,
Alex.
In my project, I have two USB3 devices that I connect to Pi4B. Both of them are USB-powered (only a single USB-C port on them) and apparently I run out of power which is supplied by the Pi through USB ports. A few details:
- These USB devices may eat up to 10W (2 amps @ 5V) in peak conditions, so there is no way the Pi will support that.
- I have sufficient 5V amps from the PSU available in the same casing.
- I have my own hat which supplies the power to Pi, currently through USB-C, but I plan to move to GPIO pins 2&4 to reduce wiring. That part is easily modifyable.
- I don't want to solder anything to these external USB devices themselves - to keep them an off-the-shelf component for easy spares.
- I would also avoid modifying the USB cables to add more 5V amps to the devices (same reason as above).
- Solution low cost is a requirement.
The question is, are there any elegant ways to inject a bit more 5V current to USB3 connector of Pi? Or how to bypass the current limits for USB?
Thank you in advance,
Alex.
Statistics: Posted by aver1974 — Fri Mar 14, 2025 3:04 pm — Replies 3 — Views 89