a DC-DC to charge li-ion... GREAT!!

[frodus]

here's a 2000W 48V nominal power supply.... outputs almost 38A

http://cgi.ebay.com/Eltek-Flatpack2-2000W-48V-NEW-4C_W0QQitemZ230260567980QQihZ013QQcategoryZ20315QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

takes in 100-250VAC...

Just thought it might be "big" enough for some of you ...

100 bucks isn't terrible... 10 hours left.

 

[efreak]

man what nice find my internet connection was down earlier ...

or i would have had a stabb at it thanks damn that was a good one brand new i hope is some here

at least that way i would only feel maybe half as bad;0

 

[flip_normal]

efreaky, don't feel bad baby, 'coz if you're connection hadn't been down then we'd have ended up bidding against each other and we'd both have lost out . I got the nice PSU (for 100 bux) and am here to tell you that the seller has told me he's got more! Woo Hoo!!! 8) It's a pity I can't afford 'em.... but hey you can't have it all....not yet anyways, but I'm sure it's workable. Just gotta stop the environmentalists from manufacturing scarcity in this age of abundance.

EDIT: Apologies for going off topic a bit at the end there. Please don't respond here. General Discussion area for that, thx.

Frodus: Many thanks for finding this PSU and posting the link, it'll replace four 500W 48V Chinese PSUs which together are more than twice as big and heavy, so it's gonna be much better for an onboard charger. Looks better quality too.

efreak: If you can't get the same deal ($100+shipping) directly through the ebay seller then PM me your details and I'll get him to send you one too. You can paypal me.

 

[Doctorbass]

here's a 2000W 48V nominal power supply.... outputs almost 38A

http://cgi.ebay.com/Eltek-Flatpack2-2000W-48V-NEW-4C_W0QQitemZ230260567980QQihZ013QQcategoryZ20315QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

takes in 100-250VAC...

Just thought it might be "big" enough for some of you ...

100 bucks isn't terrible... 10 hours left.

Damn!! too late it is sold!! for 100$ !!!!

i would have the chance to get one like it!!!

Doc

 

[frodus]

I check daily on stuff... Don't worry, I've already got mine, so I'll share what I find freely...

I'm developing a system for SLA first.... then going to LIPO. We'll test it on some 60Ah LiFePo cells we got for development.

here's another:
http://cgi.ebay.com/Eltek-Flatpack2-2000W-48V-NEW-4C_W0QQitemZ230261853482QQihZ013QQcategoryZ20315QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

 

[Doctorbass]

I check daily on stuff... Don't worry, I've already got mine, so I'll share what I find freely...

I'm developing a system for SLA first.... then going to LIPO. We'll test it on some 60Ah LiFePo cells we got for development.

here's another:
http://cgi.ebay.com/Eltek-Flatpack2-2000W-48V-NEW-4C_W0QQitemZ230261853482QQihZ013QQcategoryZ20315QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Frodus, have you succeded to start it up?
cause i already bougt one from pioneer magnetics (adj 48V 27A) that have many data pins with the output panel. and the fan power on but no output.. (the model PM3327A) made in USA

It have some Logic inhibit and other AC fail pins but i still was'nt able to get juice from it.. it does not smells blown component and the 2 PCB seems great. (one for the PFC and the next for the step down...

http://www.sdelectroniks.com/pdf/IFE_gen_DATA_rev8_1200W_hp_np_low.pdf

thanks for sharing info about great deal

 

[flip_normal]

I check daily on stuff... Don't worry, I've already got mine, so I'll share what I find freely...

Hi Frodus, when you say you've got yours, has it arrived? I ask because I'm wondering what the output is like. Does it need to be connected to other circuits to activate it? Or is it a simple case of tapping into +/- 48VDC?

There's no relevant info in this data sheet.View attachment Flatpack2 482000.pdf

 

[frodus]

No, I didn't get "that" one.... I got a nice Vicor 48V supply. Read earlier in the thread

I just keep an eye out for you guys....

I got 14 50W 15V output modules, I hooked one to test and set the trim high, and let it charge a battery. We're working on a board to control it, so they don't have to stay on all the time if the battery is charged. They'll be "smart". Board layout is done, we're waiting on some other projects (the DC controller is done, I just need to wire up my bike.)

 

[efreak]

http://www.eltekvalere.com/wip4/detail_news.epl?cat=9880&id=193896

this maybe helpful. My main concern now is that the way they talk about what a wonderful circuit they have to manage this thing ;

would it be easy enough to get juice thru it without it?

 

[efreak]

http://www.eltekvalere.com/photoalbum/view2/P3NpemU9b3JnJmlkPTE0OTI3NCZ0eXBlPTE


or this link actually says fully digitized controls

 

[flip_normal]

http://www.eltekvalere.com/photoalbum/view2/P3NpemU9b3JnJmlkPTE0OTI3NCZ0eXBlPTE


or this link actually says fully digitized controls

Says it's also for stand-alone use.

Time will tell I quess. I'll let you know when I get mine. Still waiting for a customs/tracking number.

 

[efreak]

looks like there is another one Doc.


http://cgi.ebay.com/Eltek-Flatpack2...ryZ20315QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

 

[efreak]

Question for yoy Doc:

I managed to look at a amphenol din 97 with 11 conectorsbut the specify for 16 gauge wire your were
16 ? cause i have ordered 14 gauge noodle silicon wire and that 11 conector din looks to be tight for the battery to charger wire?

thanks

 

[TylerDurden]

I don't know if they allow Canadian bidders:

http://cgi.ebay.com/Eltek-Flatpack2-2000W-48V-NEW-4C_W0QQitemZ230262788143QQihZ013QQcategoryZ20315QQssPageNameZWDVWQQrdZ1QQcmdZViewItem


Doc, I will help bid for you if there is any international issue.

I would also like to purchase, so if Doc passes, anybody else in line?

 

[flip_normal]

You could try contacting the ebay seller directly: sales@acqltd.com

Still waiting on mine, but it says it's this side o'the pond.

 

[Doctorbass]

I don't know if they allow Canadian bidders:

http://cgi.ebay.com/Eltek-Flatpack2-2000W-48V-NEW-4C_W0QQitemZ230262788143QQihZ013QQcategoryZ20315QQssPageNameZWDVWQQrdZ1QQcmdZViewItem


Doc, I will help bid for you if there is any international issue.

I would also like to purchase, so if Doc passes, anybody else in line?

Thankd for the offer Tyler,

That's appreciated!

I just dont had any reply on the 2 message i sent to the seller about if it's possible to get 48V out of it without any other auxiliary circuit for activate it.. like many modular industrial computer network power supply have...

I still have one similar from Pioneer Magnetics of 48V 27A.. but i had no succes to start it... my electronic skill level reached it limit on it....

Doc

 

[efreak]

how would one say use that suposed 38 amp down to what i need at 25 amp? ( i am sure that is possible)

sorry for the interuption


for the charger set specifically the circuit between the dc dc converters and the connector for the batteries?
What is the best solution? as far as staticts and useability etc.
what does every one suggest??

it ll be hopefully a 48 volt 38 amp !! power supply or say 3powers upplies supplying -10 amps each for 10 dcdc 3.3 volt 20 map tyco modules that

as far as can understand so far it needs to be each needing a resistor 90k? and and potentiometer for the other 20 k adjustable say i needed 100k so you can go 90-110k resistance all together so this could all tidy and secure what is your suggestion one those plastic white hobby boards with the holes!?



btw i was looking at those amphenol 97 army style connector Very good call


at the last minute noticed that the 11 pin connector the one they had i think 24-20 was rated for wires 16 gauge 13 amps
but if had the wires with me could at least check for the fit .

but excellent i am in search of maybe one that is rated for 14 gauge wire but i ll see.

 

[efreak]

how about a 22 pin connector doble up at the terminal 1 wie to 2 pins and that would split the amp requirement as well as the space


http://www.e-sonic.com/acc/products...D3&categoryname=Circular&groupname=Connectors

by the way these guy s are awsome service and an excellent find

 

[Doctorbass]

You could try contacting the ebay seller directly: sales@acqltd.com

Still waiting on mine, but it says it's this side o'the pond.

I contacted the seller and asked him to send me some pics of the rear panel.

Here they are:

I have difficulty to see details, but it seems that it have 4 large blade connector and 3 smaller on the center.. maybe ddigital data... ?

I also seen the description posted above about the use of stand alone mode.. but is it poossible without any other modular enclosure main unit?.. i mean like just soldering wires to the AC input blade and then getting DC output just like that?

 

[Doctorbass]

I missed the bid for the flatpack !!!!

Who bought it????

Doc

 

[TylerDurden]

Not I.

:?

 

[efreak]

I had bought one before this... but when emailing vendor regardin g shipping to great white north ; he was asking how many i needed which led me to believe there are more . so far payment gone through by rights should get it within a week i hope and if we need a circuit then DOC you know you will be even more popular ( autograph ??)

 

[efreak]

I had bought one before this... but when emailing vendor regardin g shipping to great white north ; he was asking how many i needed which led me to believe there are more . so far payment gone through by rights should get it within a week i hope and if we need a circuit then DOC .... you know you will be even more popular than you are now

( autograph ??)

 

[efreak]

View attachment untitled3 (WinCE).bmphttp://www.eltek-valere.de/fileadmin/produkte/Systeme/Embedded_power/Embedded_Systems_Englisch.pdf

based on my deductions the enomy is called a "SMARTPACK" the controller that is designed to string a number of these for various settings

http://www.eltekenergy.com/wip4/detail.epl?cat=11063

 

[Doctorbass]

I had bought one before this... but when emailing vendor regardin g shipping to great white north ; he was asking how many i needed which led me to believe there are more . so far payment gone through by rights should get it within a week i hope and if we need a circuit then DOC .... you know you will be even more popular than you are now

( autograph ??)

Searching over the internet for the original's doc autograph of the BTTF, look what i've found!!

They are suposed to be availlable since the month of may!!!

I NEED ONE

http://www.actionfigureinsider.com/main/?p=565



Doc