Budget friendly adjustable bench Power supplies perfect for testing LED's and other uses!

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HKJ
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Flintrock wrote:

What I don’t know is is the 10A turn on fixed under all conditions or does it turn on lower under high power

It will turn on earlier in some cases.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Flintrock
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HKJ wrote:
Flintrock wrote:

What I don't know is is the 10A turn on fixed under all conditions or does it turn on lower under high power

It will turn on earlier in some cases.

 

Ok, that's good news.  Well, and maybe it will  ramp up to higher voltages too.  Maybe I jumped the gun on this assessment and just haven't pushed it hard enough yet.

HKJ
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Flintrock wrote:

Ok, that’s good news.  Well, and maybe it will  ramp up to higher voltages too.  Maybe I jumped the gun on this assessment and just haven’t pushed it hard enough yet.

I have not noticed any speed regulation on the fan.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

raven38571
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Inside the Dell EPS-470 there is an ATX connector with 12V supply. I’m going to use it to power a 120mm fan.

Texas_Ace
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For those that want to use an ATX or other simular low voltage power supply this same company just released a new buck/boost version of the power supply module.

It outputs 0-32V and the input is 6-40V with a 5A max current.

https://www.aliexpress.com/store/product/RD-DPH3205-Buck-boost-converter...

This really opens the door for more compact and easier to build power supplies if you do not need the higher current and voltage abilities of the DPS5015

It is on sale during the introduction for $28.99 for 3 days, grab it while you can, they always do this when released and the price DOES go up after that.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung LH351D

Easy comparison tool for all my LED tests

Texas_Ace
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Great, glad to see an official test. Basically what I figured it would show.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung LH351D

Easy comparison tool for all my LED tests

Terry White
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Texlite wrote:
Thanks for this, I’ve looked for a reasonably priced power supply capable of greater than 30V and 10A for close to a year. The sub $100 10A 30V power supply’s are easy to find, and it’ll work for most of the emitters we use here, but I’ve got some projects coming up with COB LED’s and they’re usually have a Vf around 36V. Reasonable 50V power supply’s are also fairly easy to find, but most often have current outputs below 5A, and some even below 3A, which knocks out high-amp/low-Vf LED’s.

Until this it seems it’s been a choice between either high amp, low Vf tests, OR high-Vf, low amp tests.

This seems to fill the void IMO.

Off to read the other threads before I spam you with questions lol.

-Michael


Please post how those projects go. I already have people asking what can be done with COB’s…

Terry White

Skype terrywhite1@live.com

Jerommel
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FINALLY
my power supply arrived. Smile

..waiting for parts..

Still looking for 5” parabolic reflector (for recoil light)

Texas_Ace
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Tests were done in this thread: http://budgetlightforum.com/node/50274

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung LH351D

Easy comparison tool for all my LED tests

HKJ
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Guy Fawkes wrote:
Looks to be running at about 97+%? It is hard to make out from pic.

Not that hard, the magenta curve shows the power loss in it. The maximum is about 10W in all the test I have done, the only significant exception is when I am very close to the current limit.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Texas_Ace
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Here is the Design for the Acrylic case I made in case anyone wants to make one. It is cut out with a laser cutter from standard hardware store .08” acrylic sheet (“plexiglass”). Thicker acrylic would be stronger but costs a lot more and is much harder to find.

Proper acrylic glue will be stronger and look better but hot glue or super glue works just fine as well.

http://www.thingiverse.com/thing:1982235

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung LH351D

Easy comparison tool for all my LED tests

whopist
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It has been over 3 months since I posted my plans for this ‘build it yourself’ power supply in Post# 73 of this thread. Here it finally is.

PowerSupply photo PSsm_zps8wnc0cck.jpg

Parts Used:
Dell EPS-470 Power Supply, output rating 4mVdc, 9.6amp (Added power switch) $27.
DPS5015 buck controlled power supply $38.
Cooling Fan, 50mm 5v $8.
Connectors for test leads $10.
Misc. scrounged box and hardware $0.

I am quite pleased with it and thanks Texas_Ace for all your assistance.

Texas_Ace
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Looks good! It is always interesting to see peoples different build styles with these.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung LH351D

Easy comparison tool for all my LED tests

sac02
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I am impatiently waiting for my DPS5015 to arrive.

I contacted the seller through AE and asked if he was still doing BLF348 discounts,he said not officially but he would sell me one for $34.

I submitted an eBay “make offer” on one of the EPS-470 power supplies and scored one for $25.

Looking forward to putting it together, mine is also going to be assembled in a “case” made of whatever I have laying around.

Big thanks to all in this thread and elsewhere who dream/scrounge up these great budget ideas for the rest of us to steal.

NeoGeo
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With the DPS3012 is that a power supply supplied with the control unit, ie I don’t need to buy a separate supply for it?

Texas_Ace
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All of the modules in this thread need a separate power supply for them to work.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung LH351D

Easy comparison tool for all my LED tests

sac02
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I received mine in the mail earlier this week and haven’t had a spare minute to even unbox and test it! It’s driving me crazy!

This weekend…

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Is the DPS5015 the highest power unit of this brand?
No DPS over 750W?

Texas_Ace
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It is the highest at this point that I know of.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung LH351D

Easy comparison tool for all my LED tests

NeoGeo
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Ah right. So I’m guessing the external board connected to the DPS3012 is just because the control unit isn’t big enough to contain the beefier components?

Texas_Ace
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Yeah, for that kind of amperage you need way better heat sinking then the self-contained display setup allows.

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung LH351D

Easy comparison tool for all my LED tests

NeoGeo
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Thanks, suddenly all becomes clear. Smile

NeoGeo
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Would this be a good match for the DPS3012?
BG link

Texas_Ace
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Yes, that will work, you can find 48 power supplies as well. I got a 150W 48V power supply from ebay for about $14. Works great as long as you don’t need more then 150W (which would be very hard to do with a 12A limit in a flashlight).

Know guns, know peace, know safety. No guns, no peace, no safety.

The ultimate result of shielding men from the effects of folly is to fill the world with fools. --Herbert Spencer , English Philosopher (1820-1903)

Texas Avenger Driver Series

My LED Test series - XP-L2 V5  - Nichia 219C 90+ CRILatticebright "XM-L"XHP35 & PWM efficiency - XHP50 - XP-L V5 - XM-L2 U2 - XP-G3 S5  - XP-L HI V2 - Oslon Square & direct comparison to Djozz tests - Nichia 319A - Nichia 219B 9080 CRI - Nichia 219C D320 - Nichia 229AT - XHP70.2 P2 - XHP50.2 J4 - Samsung LH351D

Easy comparison tool for all my LED tests

sac02
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NeoGeo wrote:
Would this be a good match for the DPS3012? “BG link”:http://www.banggood.com/S-400-36-400W-36V-11A-Single-Output-AC-to-DC-SMP...

The Dell EPS-470 power supply previously mentioned in this thread is the same price, more powerful, and much better quality. I got mine on eBay for $24 shipped.

NeoGeo
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sac02 wrote:
NeoGeo wrote:
Would this be a good match for the DPS3012? “BG link”:http://www.banggood.com/S-400-36-400W-36V-11A-Single-Output-AC-to-DC-SMP...

The Dell EPS-470 power supply previously mentioned in this thread is the same price, more powerful, and much better quality. I got mine on eBay for $24 shipped.

Sadly I couldn’t find any this side of the pond. I did manage to find the Banggood supply much cheaper on eBay so that’s something.

NeoGeo
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I ordered a DPS3012 from RD Tech last week. The discount is still available for the forum so get your orders in. You need to ask before you order. They have been very nice to deal with. Looking forward to putting it all together.

Barkuti
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Some additional information about the buck/boost module I previously linked (#69):

Marty's Techno Blog Software Engineer - MingHe buck/boost converters – handy, if you’re careful!

Also called D3806/B3806/DPS3806. Advisable to disconnect the load on power down first to avoid voltage overshoots.

Inexpensive: https://www.aliexpress.com/item/DC-DC-Adjustable-10-40V-To-0-38V-Digital-Step-up-Step-down-Power-Supply-Boost/32789812405.html

May also be found a tad cheaper if you look for “app only” deals.

 

Cheers Party

Flintrock
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The DP shop now offers pre-made cases to fit, including a fan, rear switch, and banana connectors for input and output. No room to squeeze in an extra xt60 connector on the front though.

sac02
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Flintrock, I’m having problems finding it, do you mind linking me?

Edit: is it this one?

this

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