XU3 UPS

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XU3 UPS

Unread postby wiertel » Tue Mar 24, 2015 1:42 pm

Is there an UPS for XU3 Lite board?
I see a U3 UPS but no XU3 UPS. Can this UPS2 be used with XU3? Or is this bad idea because XU3 require more power and even if it would boot the XU3 on UPS2 will not ve stable?
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Re: XU3 UPS

Unread postby odroid » Tue Mar 24, 2015 2:53 pm

Right. XU3 needs 3~4Amp while U3 needs 1~2Amp.
We couldn't find any power solution ICs which can supply 3~4Amp stably. Sorry about that.
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Re: XU3 UPS

Unread postby wiertel » Fri Mar 27, 2015 12:41 pm

Thank you for this confirmation.
UPS is not crucial for me at this moment.
I may consider something like OpenUPS at some point, but this one is rather expensive and woukd require voltage reduction.
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Re: XU3 UPS

Unread postby phaseshifter » Tue May 12, 2015 12:53 pm

a decent 12 volt agm sla battery say 12 volt ... and a regulator between the power pack say a 4 amp 15 volt dc power well filtered add say 10000 mfd of electrolytic cap at 25 volt across the output of the supply/plug pack then get a low power/charge.. mppt regulator only has to be 6 amp max and a 5 volt regulator circuit easy for me to build maybe not you but the battery u could use say 20 amp hours at 12 volt ... would run the xu3/u3 for like hours ..soz you do the math on hours depending on what battery u select....therefore the battery would only require a float charge to keep it healthy ..i would say at approx you would get 5 years out of a good quality agm battery....this is just a guide so talk it over with an engineer or technician of coarse there are many ways you could just get a agm 12 volt a pre-built self regulating charger then a 5 volt step down converter...it is not rocket science..well not 4 me... get a professional opinion there are many ways to skin a rabbit this is just a few examples...
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Re: XU3 UPS

Unread postby phaseshifter » Fri May 15, 2015 5:37 am

have a look here

https://www.google.com.au/#q=best+12+vo ... ry+charger
and here

https://www.google.com.au/#q=12+volt+to ... +converter

just search for a agm deep cycle battery 12 volt 20 Ah or bigger depending on how big you want to go in storage current.....
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Re: XU3 UPS

Unread postby phaseshifter » Fri May 15, 2015 5:51 am

also when and if you use any self built setup using a 12 volt battery make shure u fit a voltmeter to the battery..a 12 volt agm/deep cycle battery..in the event that you do have a mains power down...do not let the battery voltage drop below 10 point 5 volts as a rule otherwise you run the risk of ruining your deep cycle battery...it is an imperative point to be aware of...


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its this easy
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Re: XU3 UPS

Unread postby phaseshifter » Fri May 15, 2015 7:05 am

as i run of solar and battery’s once i get my xu3 it will be running of my 200A/h system which i will be upgrading in august up to 280 A/h system i run 2 voltage regs of it as it is a 24 volt system ,,the regs ar 12v and 5 v..my ux3 will be once set-up to the way i want it ..will be permanently on line...
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Re: XU3 UPS

Unread postby chrisjx » Thu Aug 06, 2015 9:10 am

odroid wrote:Right. XU3 needs 3~4Amp while U3 needs 1~2Amp.
We couldn't find any power solution ICs which can supply 3~4Amp stably. Sorry about that.


We use the U3 with UPS. Now without U3 we have to move to XU4. Will there be an update to UPS for XU4?

Thanks,
Chris.
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Re: XU3 UPS

Unread postby phaseshifter » Thu Aug 06, 2015 7:11 pm

chris start a new thread
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