[MinnowBoard] TurboT DualE board power by LSE header

[Alex Bakhtin]

Nobody sent a reply.

We made some testing and designed a simple PSU to check this idea.
Everything is working fine.



[image: 20180412_102636.jpg]



вс, 1 апр. 2018 г. в 1:31, Alex Bakhtin <alex.bakhtin at gmail.com>:

> Hello.
>
>     Is it possible to power the TurboT Dual-Ethernet - Dual Core board
> from LSE header?
>
>     Right not we are testing how TurboT fits out project. TurboT could be
> one of the core components, but the whole device should be dual-powered
> (220V AC and 10-36VDC). From my point of view - this is a good idea to
> desing a PCB on which we would install our PSU, and also provide a mounting
> space for TurboT - holes and connection to the LSE header (I think we would
> also use one uart from LSE header).
>
>     I checked the turbot schematics and I see that DC_IN_1 (power supply
> connector) is filtered by an LC filter, connected to protection curcuit and
> after that is connected to +PS_5VSB.
>     +PS_5VSB is connected to pin 3 of LSE header and supply 5V power to
> the rest of the board. So, according to turbot schematics - we can supply
> +5V to the PS_5VSB directly and everything should be fine.
>
>     In the turbot gerber files I can see that this pin is connected to
> polygon on Layer 06, and it seems that this polygon is directly connected
> to Q103 and FB1->U13 (3V power supply).
>
>     Is it ok to supply 5VDC it from LSE header? Thank you.
>
> Alex Bakhtin
>
> --
>
> Alex Bakhtin
>
-- 

Alex Bakhtin
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