Brick power supply

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This is ideal but expensive: http://www.vicorpower.com/cms/pr... also I don't know who stocks them. (A few dozens eventually)

Vout 5V @ 20A
Vin 36 "“ 75 Vdc (Preferred, may also use the 24V nominal input 18V-36V or 56V)

Note: 100°C baseplate operation. It will not run this hot but the inside of the box can be expected to reach 80°C in hot days as the box sits in the sun. In other words, no derating at higher temp.

Can use a full brick or 1/4 brick at this stage.

Have looked at Cosel, TDK-Lambda, Meanwell and several others but can't make up my mind.

Does anyone use this kind of supply? Any recommendations? The "brick" style seems available for several vendors and seem to be pin compatible.

Tomorrow I'll contact some local distributors but they WILL get me crancky as no one keep anything in stock here, they want a MOQ and Santa will deliver them next year!! :evil: We seem to have useless distributors in Oz.

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

Last Edited: Sun. Dec 18, 2011 - 08:53 AM
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I used to use a bunch of their VI-J00 (24V in, 100W). They are very reliable and allow Vout to be adjusted within -90..+10% (other manufacturers give only +-10%). I purchased them via various distributors and it usually took at least 6..8 weeks to get the parts because Vicor appears to not stock them but just manufacture the quantity on demand.

Warning: Grumpy Old Chuff. Reading this post may severely damage your mental health.

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js,

This type of supply is used in many military ground vehicle applications, particularly with 12 & 24 VDC nominal input voltages. So, usually you will only find high quality (thus expensive) units in the power supply market place.

When you go to a nominal 48 VDC input, you are in the domain of the telecommunication industry and you will find a much larger selection of vendors and output voltage/watage options.

I have used XP Power's bricks in the 5 to 50 watt range with a 12 and 24 VDC input with flawless results. Their prices are typically a bit lower than Vicor, which is also a World Class power supply company.

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When I was at Fiber Options we used them in our modems for power plants where we only had 125vdc available. They work great and they don't get too hot, but the baseplate is needed.

Check out Acopian. I use them quite a bit. Much easier on the pocketbook too.

JIm

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

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Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB user

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Thanks for the info guys.

Unless I'm going blinder I can't see Acopian supplies in "brick" format going to 20A. :roll:

I have been reconsidering things, I first started looking at this about a year ago and things have changed somewhat now.

The Murata UCQ-5/20-D48NB-C and UCH-5/30-D48NB-C (150W and only $10.00 more) seem to do the job quite well and Digikey has reasonable stock. They come with backplate and I can bolt them to the aluminium box.

Unless of course someone tells me how bad they are and blow up easily... :?

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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John,
Acopian makes them, just have a different name for them. If you want in the morning I can call a budddy of mine and tell him the Vicor part number and get the Acopian equivalent if yo want.

Lemme know

JIm

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB user

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Quote:
Lemme know
OK, just that I could not see them. :-)

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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As far as I can see the 'brick' module is standardized. It should be availabe from a lot of vendors. I used to get a an advertising paper every 2 weeks and they always had a lot of 'new' 'better' and çheaper' brick or 2brick modules. so there should be plenty choise.

I think they where in the papers called EDN(Electronic design news) or IEn (Industrial electronics news) one of them had a european version that I used to get.

perhaps do a search on them and find a load of companies that make them.

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Despite the pin/casing compatibility, they are very, very different in many aspects.

Warning: Grumpy Old Chuff. Reading this post may severely damage your mental health.