Looking for advice on power supply for a rack of 4+ Rock64's
#1
Was planning on using this USB charger with these USB => Barrel cables.

However I see in the PicoCluster assembly of Rock64 boards that there is some sort of power supply board riding on top. Anyone know what this is?

Anyone have any firsthand experience powering a rack of these babies?

Thanks!
  Reply
#2
probably power suppy for rpi in picture. as far as power to the boards that charger states 3A per slot /5 slots = 15A x 5V = 75watt but it is listed at 63watt, so that rating of 3A per slot can not be right some of those slots get less.
  Reply
#3
In addition to what dkryder wrote, you need to ensure you're using thicker USB cables in order to pass more current. 24AWG cables are not rated for passing 3A. For comparison, the 5V/3A power adapters have 20AWG cables.
  Reply
#4
The unit in the picocluster looks like a 12V to USB converter. I use the same one in my truck, but I can't find a link to one right now.

You can probably use something like this. Currently, I am repurposing an old ATX power supply into a GND/+3.3V/+5V/+12V bench supply to run a bunch of ROCK64 and a switch. I'll probably add a couple of cheap ammeter/voltmeters from the RC world to monitor usage.
  Reply
#5
Thanks for sharing the guidance its really helpful thread.
  Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Power Supply and Sinks for multi-Rock64 env Davo-CC 1 985 01-02-2020, 02:26 PM
Last Post: dpgraham
Lightbulb Mount a HeatSink on the Rock64 using 3M Thermal Tapes MarkHaysHarris777 22 12,058 11-29-2019, 03:14 AM
Last Post: ab1jx
  power connector type please AlexS 1 248 08-31-2019, 08:27 AM
Last Post: tllim
  My Rock64 died (with a happy ending!) rmbusy 1 356 08-15-2019, 06:48 PM
Last Post: tllim
Information Brushless Fan (5v) for Rock64 Clear Case Soft PWM Drive 2N2222 MarkHaysHarris777 7 4,968 07-09-2019, 06:15 AM
Last Post: merwone
  Rock64 stereo audio dac add-on board with RockPro64 Tim13 1 292 07-08-2019, 07:15 PM
Last Post: tllim
  Using a stronger power supply myn4m3 1 236 06-23-2019, 05:01 PM
Last Post: Rocklobster
  Rock64's temperature while being in aluminium case _zernok 3 565 06-23-2019, 08:00 AM
Last Post: rasputin
  Rock64 Stereo Audio DAC add-on board Hukmut 3 770 06-15-2019, 07:56 AM
Last Post: MiiCode2
  USB3 enough to power 2,5 external HDD? va88 11 697 06-06-2019, 03:40 PM
Last Post: va88

Forum Jump:


Users browsing this thread: 1 Guest(s)