Power Supply Price Check - Small 200W AC-DC Brick

[Kmpkt]

Samples are due to be ready in June. I have asked for both 12V and 19V variants and will be having them brutally stress tested before I even think of ordering anything. I'd say end of Summer at the earliest.

 

[ermac318]

@Kmpkt There's another potential use case for these. There are some boards that support 12V EPS input, like Mini ITX SuperMicro server boards. Some use 4pin, others 8pin. Powering these directly (using an external 4-pin input with a conversion to EPS internally) would be a neat way to power these server boards from a brick and eliminate an internal power supply entirely. I was looking at using the trusty Dell DA-2 brick for this, which provides 3x 12v rails. Folks interested in tiny SuperMicro VMware clusters (there's a whole community around the Xeon D boards) for home labs might dig these adapters for noise reasons.

 

[Kmpkt]

Pretty sure it would be easy to provide a 4 pin DIN to 4+4 EPS adapter cable for these use cases. Will put that on the radar.

 

[ermac318]

Pretty sure it would be easy to provide a 4 pin DIN to 4+4 EPS adapter cable for these use cases. Will put that on the radar.

Where could one find adapters like this today? For other projects...

 

[Thehack]

Where could one find adapters like this today? For other projects...

Needs to be custom made. Minibox stock some 4din to 4 pin mini fit jr (same as cpu eps). That will work.

@Kmpkt can you post the pinout specs? I'll include an adapter in the future plugin 160W.

 

[Kmpkt]

@Kmpkt can you post the pinout specs? I'll include an adapter in the future plugin 160W.

 

[Lone]

I'm not sure if these are GaN adapters or not, but there's a good chance they are. A little larger, but slimmer form factor.

Dimensions: 160L x 78W x 25.4H (mm)

https://www.edac.com.tw/en/features-1282-2735/Down-Sized.html

 

[Thehack]

I'm not sure if these are GaN adapters or not, but there's a good chance they are. A little larger, but slimmer form factor.

Dimensions: 160L x 78W x 25.4H (mm)

https://www.edac.com.tw/en/features-1282-2735/Down-Sized.html

No, likely not. They have crap ripple specs. So, very noisy specs means they can make it smaller.

 

[Lone]

No, likely not. They have crap ripple specs. So, very noisy specs means they can make it smaller.

That's too bad.

 

[Jello]

@Kmpkt How's this project moving along?

 

[Kmpkt]

Should be receiving samples in September

 

[Jello]

Should be receiving samples in September

Been doing any testing?

 

[Kmpkt]

Samples are en-route as we speak. Hoping to receive them in the next week to week and a half.

 

[marcosopeth]

Hello! I just bought an HDplex 200w DC-ATX and i was looking for a good 180~300w AC-DC power supply. Thank you guys for sharing this informations.

I'm from Brazil.

I think i'll buy the Dell 240w Slim power brick from website:

Acessórios para computador e periféricos para pc

Compre a ampla seleção de acessórios para computadores da Dell, como teclados, mouses, webcams baterias e muito mais todos adaptados às suas necessidades.

www.dell.com

this one costs R$ 400 ( around $ 85 )


There is also this slim model:

Acessórios para computador e periféricos para pc

Compre a ampla seleção de acessórios para computadores da Dell, como teclados, mouses, webcams baterias e muito mais todos adaptados às suas necessidades.

www.dell.com

this one is R$ 100 more expensive ( around $ 21)

Which one should I buy? Recommendetions please?

Thanks guys !!

 

[cleveland]

Hello! I just bought an HDplex 200w DC-ATX and i was looking for a good 180~300w AC-DC power supply. Thank you guys for sharing this informations.

I'm from Brazil.

I think i'll buy the Dell 240w Slim power brick from website:

Carregador Dell - 240 Watt | Dell Brasil
this one costs R$ 400 ( around $ 85 )


There is also this slim model:

Carregador Dell - 240 Watts (barrel 7.4mm/modelo E5) | Dell
this one is R$ 100 more expensive ( around $ 21)

Which one should I buy? Recommendetions please?

Thanks guys !!

Since you're all in into the AC-DC setup, I suggest you to buy the 330w one. It's R$29 more expensive than your main choice, but you have headroom for any power peaks your setup is able to reach.

 

[marcosopeth]

Since you're all in into the AC-DC setup, I suggest you to buy the 330w one. It's R$29 more expensive than your main choice, but you have headroom for any power peaks your setup is able to reach.

I'm afraind of buying the Dell 330w because the website pictures of this is like a 130w model, I never see the 330w model slim, i think they mistake images.

So if i buy 330w i might receive the BIG power brick like this one: https://www.newegg.com/p/16J-0183-03BV3

And i wanted something more slim and small...

But i'll consider this! Thanks your reply my friend!

 

[marcosopeth]

@Lone

Thanks for the size comparison. The Dell is 155mm x 76mm x 30mm if that helps.

@robbee

GaN stands for Gallium Nitride which is a replacement for Silicon based materials in power systems. The simple way to look at it is that GaN based units will (as technology improves) allow MUCH smaller AC-DC units than are currently available. It also allows much higher levels of efficiency (the unit I am looking at is rated at 95% typical efficiency while the HDPlex 200W AC-DC is rated for 85% efficiency). The unit I am hoping to offer would be one of the first GaN based AC-DC adapters to hit the market at > 65W.

Longer term I would love to be able to offer "micro bricks" with a wattage of 150-200W @ 12V that are summable at the DC-DC unit (ie. up to three units could be summed) and are approximately the size of 2.5" SSDs. GaN will hopefully make this an eventual reality.

Hello my friend! Do you know the sizes of this one?

Computer Accessories and Peripherals

Shop Dell’s high-quality computer accessories like keyboards, mice, webcams, batteries and more. Enjoy great deals and build your ideal PC setup for home or business.

www.dell.com

 

[Lone]

The Adapter Technology GaN 200W AC adapters are available from Digi-key under the CUI brand. Unfortunately, they're priced very high... but they're so tiny!

SDI200G-12-U-P51 CUI Inc. | Power Supplies - External/Internal (Off-Board) | DigiKey

Order today, ships today. SDI200G-12-U-P51 – 12V AC/DC External Desktop (Class I) Adapter Cord (Sold Separately) Input from CUI Inc.. Pricing and Availability on millions of electronic components from Digi-Key Electronics.

www.digikey.com

 

[riser]

Hi, take a look at this one:

200watt 20v GaN Switching Power Supply (Gallium Nitride)

200 Watt GAN Power Supply 20V 10Amp, Ultra small power supply with Huge power output. What is GaN? Gallium Nitride is a stable wide bandgap semiconductor material with high heat capacity and thermal conductivity, Gallium nitride has demonstrated the capability to be the displacement technology...

www.coolgear.com

200W GaN ~$90

 

[Lone]

Hi, take a look at this one:

200watt 20v GaN Switching Power Supply (Gallium Nitride)

200 Watt GAN Power Supply 20V 10Amp, Ultra small power supply with Huge power output. What is GaN? Gallium Nitride is a stable wide bandgap semiconductor material with high heat capacity and thermal conductivity, Gallium nitride has demonstrated the capability to be the displacement technology...

www.coolgear.com

200W GaN ~$90

That's the one at a much better price, thank you!

EDIT: I see now this is 20V, and not 12V.