[MinnowBoard] Minimal voltage
Thiago Tenório Jordão de Vasconcelos
thiagottjv at gmail.com
Thu Oct 9 19:35:00 UTC 2014
I'm using a series of capacitors, I'll try to increase the capacitance of
them.
Atenciosamente,
Thiago Vasconcelos
--
Programador Web
Portfolio: http://thiagottjv.com
Fone:+55-81-96320562
On Thu, Oct 9, 2014 at 4:26 PM, Michael Jarvis <mjarvis.tx.08 at gmail.com>
wrote:
> Sounds like you might need some sort of voltage regulator between your UPS
> and the MBM.
>
> On Thu, Oct 9, 2014 at 2:05 PM, David Anders <danders at circuitco.com>
> wrote:
>
>>
>> Thiago,
>>
>> yes that is correct... min 4.75V
>>
>> Dave
>> > On October 9, 2014 at 2:03 PM Thiago Tenório Jordão de Vasconcelos
>> > <thiagottjv at gmail.com> wrote:
>> >
>> >
>> > Hi guys, thanks for the answers.
>> >
>> > But even When I don't use a USB the minimum is 4.75V, right?
>> >
>> > Atenciosamente,
>> >
>> > Thiago Vasconcelos
>> >
>> > --
>> > Programador Web
>> > Portfolio: http://thiagottjv.com
>> > Fone:+55-81-96320562
>> >
>> > On Thu, Oct 9, 2014 at 4:00 PM, David Anders <danders at circuitco.com>
>> wrote:
>> >
>> > > Thiago,
>> > >
>> > > the input voltage is used directly to power the USB interfaces on the
>> main
>> > > board, therefore, the tolerance is configured to be the same as the
>> USB
>> > > specification which states that the voltage is +- 0.25V , for a
>> minimum of
>> > > 4.75V
>> > > and a maximum of 5.25V
>> > >
>> > > Dave
>> > >
>> > >
>> > > > On October 9, 2014 at 1:57 PM Joey C <casas.joey at gmail.com> wrote:
>> > > >
>> > > >
>> > > > I've seen weird usb and SATA drive things when using a 2A power
>> supply. I
>> > > > went to a 2.4 and those issues resolved.
>> > > >
>> > > > On Thursday, October 9, 2014, Thiago Tenório Jordão de Vasconcelos <
>> > > > thiagottjv at gmail.com> wrote:
>> > > >
>> > > > > Hi,
>> > > > >
>> > > > > Someone know what is the minimal voltage to supply the
>> MinnowBoard MAX?
>> > > > >
>> > > > > I'm going to use a UPS system and when the power goes down on the
>> > > change
>> > > > > from the wall power to the battery the voltage goes down to
>> something
>> > > near
>> > > > > 4.435v during the 10ms of the transition.
>> > > > >
>> > > > > Thank you,
>> > > > >
>> > > > > Thiago Vasconcelos
>> > > > >
>> > > > _______________________________________________
>> > > > elinux-MinnowBoard mailing list
>> > > > elinux-MinnowBoard at lists.elinux.org
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>> > >
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>
>
>
> --
> *Michael Jarvis*
> McKinney, TX USA
> http://about.me/michael.a.jarvis
>
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