Provide power in via Pi-2 header
#9
(12-11-2016, 12:10 PM)BenCranston Wrote: Well, that fully explains the issues I've been having.  I'm going to re-route the power over to the EULER bus and test again.  I'm worried however that I might have damaged something on the Pine64 by back-powering via the Pi-2 interface...

So, @pfeerick can you comment on @ciclopez assessment of the schematic?  Thanks.

So, have you been powering the Pine through the Pi-2 Bus and the microUSB port at the same time? I won't recommend doing that, but maybe the Pine has some protection for that use-case and your Pine could be fine, otherwise the MT3608 or your power sources might have been damaged, or maybe they just overheat.

I just did some measurements on the Pine and providing an input voltage of 4.97V through DCIN, the output voltage in the pins 2 & 4 of the Pi-2 Bus is 5.24V (this comes from MT3608) So I think it won't be possible to bypass the MT3608 by shorting Pins 4 & 8 in the Euler Bus, as the currents flowing from MT3608 to the power source could be of several Amps... unless I'm missing something.

Does anybody have an idea to bypass the power regulator?
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Messages In This Thread
Provide power in via Pi-2 header - by BenCranston - 06-13-2016, 07:55 PM
RE: Provide power in via Pi-2 header - by g_t_j - 06-14-2016, 06:14 AM
RE: Provide power in via Pi-2 header - by g_t_j - 06-15-2016, 05:17 AM
RE: Provide power in via Pi-2 header - by ciclopez - 12-11-2016, 12:53 PM
RE: Provide power in via Pi-2 header - by g_t_j - 03-08-2017, 02:23 PM
RE: Provide power in via Pi-2 header - by g_t_j - 03-08-2017, 03:03 PM
RE: Provide power in via Pi-2 header - by g_t_j - 03-08-2017, 04:26 PM

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