Review of DP50V5A & DPS3012 bench top power supply modules, best bang for the buck around!

132 posts / 0 new
Last post
Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas
LightRider wrote:
Do you disconnect the small fan or run them both together?

I just spliced the new one into it, they both turn on.

LightRider
LightRider's picture
Offline
Last seen: 7 months 4 weeks ago
Joined: 08/05/2015 - 09:52
Posts: 2007
Location: U.P. MI, USA
Texas_Ace wrote:
LightRider wrote:
Do you disconnect the small fan or run them both together?

I just spliced the new one into it, they both turn on.


K. Thanks:)
RD tech
RD tech's picture
Offline
Last seen: 1 month 2 weeks ago
Joined: 08/27/2016 - 04:34
Posts: 155

Texas_Ace how I can contact you ? I need your help .  email or what'sapp? my email is 1749808860@qq.com or whatsapp account +8615868157353

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas
RD tech wrote:

Texas_Ace how I can contact you ? I need your help .  email or what’sapp? my email is 1749808860@qq.com or whatsapp account +8615868157353

I just sent you an email to the above email address.

Flintrock
Offline
Last seen: 11 months 2 weeks ago
Joined: 09/10/2016 - 20:29
Posts: 1544

Texas_Ace wrote:
LightRider wrote:
Does the module control the fan or will it run steady?
It controls the fan, which is why I like to tap into it. It only kicks it on when it gets hot or when outputting above ~6 amps. It also appears to be PWM as it blows harder the hotter it gets.

 

Replying to random old post... I doubt this is PWM.  Looks like only two wires.  PWM fans use 4.  I believe it's 2 for power, 1 for PWM and 1 to signal rate back to the controller.  However, as I recall there are motherboard fan controllers capable of just ramping voltage.  I'm 99% sure that's true for 3 pin fans (that report their speed but don't take PWM) but I can't remember if any do it for 2 pin fans.That doesn't mean it couldn't be or isn't being done though.  However different fans have different minimal operating voltages and it might not come on as soon as desired.  Not to worry, the board should keep getting hotter until it ramps up the voltage more and it does eventually come on.

 

A fairly common trick (and I sometimes use it) is to wire two-wire fans between the 12V and 5V lines of a CPU PSU, running it at 7V instead 12, making it much less noisy, and in some cases still providing the desired flow, especially for extra case vent fans, hard drive fans, places where super insane speed really isn't ever needed.  

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas

Yeah, in the case of the 3012 I used a 12v fan and it kicks on as soon as the 5v fan but I had other 12v fans that did not. I would use a 5v fan if given the choice but all I had on hand was 12v and it worked fine so why not. Plus it was quiter.

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas

Ok, RD Tech is looking for a sexy new name for an upcoming release (shhh, no one is supposed to know yet).

They currently use the DP and DPS models for their lineup. The new model is very similar to the DPS series except that it is a buck/boost module instead of just a buck module.

I don’t have all the details yet but basically it will be able to output the full voltage range with any input voltage (within spec of course), very cool as you could use a standard ATX power supply to power it. Although not sure what the max current will be.

I plan to order a 5015 when my 3012 sells, depending on what comes of this one I might jump on it instead. Have to see.

Anyways, back to the point.

Does anyone have a good name idea for a buck/boost version of the DPS power supply?

They are thinking about DPB (B for buck/boost) at the moment but that doesn’t really roll off the tongue.

DPC is not such a tongue twister and could stand for “complete”, such as complete voltage range ect.

Or DPU for ultimate

Or even something completely different like the “throttle” series (this was thought of at way too late of an hour but just an example)

Anyone got a good idea for an english name for the new series?

pilotdog68
pilotdog68's picture
Offline
Last seen: 2 months 3 weeks ago
Joined: 05/30/2013 - 23:31
Posts: 6419
Location: Held against my will in IOWA, USA

“Best bang for the Buck” Pun intentional?

My Favorite Modded Lights: X6R, S8 , X2R , M6, SP03

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

ImA4Wheelr
Offline
Last seen: 1 day 17 hours ago
Joined: 02/03/2013 - 14:51
Posts: 7821
Location: SC

CBB for the Crow of the Bucking Booster.

Lazy-R-us
Offline
Last seen: 1 day 20 hours ago
Joined: 09/13/2015 - 00:30
Posts: 674
Location: Carolinas, USA

How about the BBPS-###. Buck Boost Power Supply?

Are the ones on BangGood Rd Tech official versions? I don’t have an AliExpress account and I like being able to use PayPal.

I have a nice 48v 10A supply to run it with, so I probably don’t need a buck boost as my needs above 48v are pretty limited.

Lazy-R-us

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas

LOL, well some interesting ideas but not really mass marketable I am afraid lol.

Any other more marketable ideas?

What about DPA, for Adaptable?

Lazy, yeah the buck supply should be fine for you, I will be going with it as well unless then specs on the new ones are too good to pass up.

Flintrock
Offline
Last seen: 11 months 2 weeks ago
Joined: 09/10/2016 - 20:29
Posts: 1544

 

posted in wrong thread.. deleted. 

 

robnrie
Offline
Last seen: 2 years 2 days ago
Joined: 11/13/2016 - 06:49
Posts: 4
Location: Australia

Hi RD Tech,
I have a question for you about the DPS5015.
I purchased one of these about a month ago which i have since built a bench power supply using a 60v 13.3A switching power supply as follows
https://www.aliexpress.com/store/product/Switching-Switch-Power-Supply-D....
Now i wish to have constant outputs for the following (3.3, 5, 12, 24) as well as the adjustable voltage so is it possible or how would you suggest this.
I would like to have an amps output to those voltages of around 15A, below are pictures of what i have so far.

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas

That is not possible with the DPS series. It only have a single output and it is the adjustable output.

If you want some fixed voltage outputs as well I recommend putting a gutted ATX power supply into the box and tapping into the rains on it for those. Although that won’t get you a 24V line but 3.3v, 5v and 12v will be taken care of. You will also have a lot of power ability on those as well.

robnrie
Offline
Last seen: 2 years 2 days ago
Joined: 11/13/2016 - 06:49
Posts: 4
Location: Australia

Thank’s for the fast response. I thought about that but i don’t have enough room for that approach.
I was hoping for a suggestion of some methods to tap into the 60v supply before the DPS5015.
i did find these but not sure if they will do the job.

http://www.ebay.com/itm/200W-15A-Voltage-Power-Buck-Converter-Step-Down-...

http://www.ebay.com/itm/282234704113

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas

Those buck modules will do what you want with fixed voltages. Although they are quite noisy and iffy quality.

Honestly I have one of mine built into an ATX power supply and I have used the direct power from the ATX rails all of one time. I simply find it far easier to use the DPS over those fixed rails. If nothing else the information on the meters showing me the current and voltage is immensely useful.

Personally I would simply invest in another DP or DPS unit and mount it in the same box (the smaller units only have the screen with no external PCB and are cheaper).

This would be a much more useful option IMHO. This is also why I have 2 units myself. It is simply much more useful for me.

Although with a 60V input (it should be adjustable to some degree with that pot on the end of the terminals, might turn it down to ~55v just to give a bit more wiggle room for surges) you will need to make sure that the second unit you get is able to handle the full input voltage, unless you use anther buck converter to first drop the voltage and then feed that into the DPS. That seems a bit overkill though.

whopist
Offline
Last seen: 6 days 21 hours ago
Joined: 02/21/2012 - 09:34
Posts: 37

robnrie I like your power supply build!

Are you needing fixed voltages to be used along with DPS (say 26v and 12v at same time), or do you only need the voltage sources singularly?

If only using one voltage source at a time, then why not set (3.3, 5, 12, 24v) as M1,M2,M3 and M4 then they will be available with a couple of button strokes.

DPS Manual instructions for memory groups :
  (M0-M9 ten groups data group)
M0 group is the boot default data group. When you extract the data group you need, this data group will cover M0 data group and be automatically stored on M0 data group.
   (Extract Shortcut storage data group M1 or M2)
  On the main interface, keep pressing V/↑or A/↓ more than 2s, you can extract Shortcut storage data group M1 or M2 quickly. In the same time the corresponding data group number will displayed on the right of the screen.
   (Extract the specified data group)
  On the main interface, keep pressing SET key more than 2s, the sequence number of data group will be displayed on the right of the screen, you can turn coding potentiometer to choose data group you need. And then press shortly SET key, you can extract the specified data group you need.

robnrie
Offline
Last seen: 2 years 2 days ago
Joined: 11/13/2016 - 06:49
Posts: 4
Location: Australia

Thanks for your suggestion i did think about that with the dps or dp but when i am doing any experiments i wanted to have the ability to supply fixed sources at the same time.
but you are right that the quality of the dp or dps is much better and would only need 1 to bring it down to the 24v then regulate the others from that or get a larger housing and gut a power supply.
as for the adjusting i already turned it down to 55v wich gave me almost the 15A for this unit.

robnrie
Offline
Last seen: 2 years 2 days ago
Joined: 11/13/2016 - 06:49
Posts: 4
Location: Australia

No i was hoping to use at the same time

Flintrock
Offline
Last seen: 11 months 2 weeks ago
Joined: 09/10/2016 - 20:29
Posts: 1544

I put mine on the lowest setting it would go, I think 0.04A or so as I recall.  Touched two aligator leads to an xml-2 star.  I don't remember now but the Vf was impressively low, maybe less than 2V even, but the led was clearly lit.  But it would pulse about once every second, steady, and a then a quick brighter blip. I don't know maybe it's ready my ekg or something, lol.  I wouldn't expect a high dollar bench supply to do that, but that's not really a criticism.  It's doing great as a hobby supply and this was pushing its limit clearly.

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas

At the extreme ends of the working range it is not the most precice device but then you don’t use your DMM set to 10A range when measuring micro-amps. So using a 15A power supply is sort of like that.

My smaller 5A unit is a lot more stable at lower voltages/currents when you get down to the milli/microamp area. It says it should be in the data sheet as well.

Ricez
Offline
Last seen: 5 days 17 hours ago
Joined: 09/09/2010 - 12:32
Posts: 52
Location: uk

I have the DPS3003 and it’s great for small arduino stuff and LEDs, the display is accurate but I’ve never seen anyone scope the output and comprehensively test the thermals and output capabilities.

A decent buck/boost will be very popular

My only niggle is that the encoder knob is quite small, but it’s a very small unit so what can you expect.

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas

HKJ did a test of the larger DPS5015 recently. It is posted in this same section i think. Basically for the price it came out very impressive.

Some ripple in the output as would be expected for a unit this cheap but far far better then most units even 2-3x the price.

It also easily matched/handled the specs it said it would for extended periods of time.

Flintrock
Offline
Last seen: 11 months 2 weeks ago
Joined: 09/10/2016 - 20:29
Posts: 1544

Ricez wrote:
I have the DPS3003 and it's great for small arduino stuff and LEDs, the display is accurate but I've never seen anyone scope the output and comprehensively test the thermals and output capabilities. A decent buck/boost will be very popular My only niggle is that the encoder knob is quite small, but it's a very small unit so what can you expect.

 

My niggle on the 5015 isn't the size but that's it one knob with a funny push-to-select-digit interface and an enable timeout, instead of classic 4 knobs V/A course/fine.  But yeah... that's all money and space.  The auto-lockout can be considered a feature too. 

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas

I agree, my only real complaint is I wish it had 2 knobs always “attached” to volts and amps.

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas

I had a user PM me about one of these units and over the course of his investigation he was told by RD how to calibrate these units.

Quote:
I contacted RD store and they give me instruction how to calibrate it. Disconnect input and output. Then press and hold SET, and then connect input. Hold SET until unit boot-up. Then it is calibrated.

Good thing to know.

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas

Any power supply with an output of less then 60V will work fine, it naturally needs to handle the wattage you plan on using as well.

I use a 48V 480W power supply with mine.

Lazy-R-us
Offline
Last seen: 1 day 20 hours ago
Joined: 09/13/2015 - 00:30
Posts: 674
Location: Carolinas, USA

Texas_Ace wrote:
Any power supply with an output of less then 60V will work fine, it naturally needs to handle the wattage you plan on using as well.

I use a 48V 480W power supply with mine.


To be clear, any power supply with an output a couple volts higher than what you want out of the 5015 will work. In other words, if you don’t need more than (say) 15 volts, you could use a 24 volt supply. This is cool because old computer power supplies are often scroungable for a little bit of effort. So you can save up for that nice 48 Volt supply you have your eyes on.

Lazy-R-us

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas

Lazy-R-us wrote:
Texas_Ace wrote:
Any power supply with an output of less then 60V will work fine, it naturally needs to handle the wattage you plan on using as well.

I use a 48V 480W power supply with mine.


To be clear, any power supply with an output a couple volts higher than what you want out of the 5015 will work. In other words, if you don’t need more than (say) 15 volts, you could use a 24 volt supply. This is cool because old computer power supplies are often scroungable for a little bit of effort. So you can save up for that nice 48 Volt supply you have your eyes on.

Correct, it needs a few volts of overhead for the buck to operate.

Although most computer power supplies around here are 12V, servers have 24 and 48V supplies though. I am using the DELL server power supply posted either earlier in this thread or the other thread on the dps5015.

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 19 hours 16 min ago
Joined: 03/24/2016 - 07:44
Posts: 7886
Location: Everything is brighter in Texas

Guy Fawkes wrote:
I believe your company makes the DPS5015.

I would like to know what Mean Well power supply your company uses to power DPS5015 at 100% capacity.
Full adjustable range of Voltage and Current.

Thank you.
Guy

I do not think that RD Tech reads this board anymore, I doubt that you will get a reply anytime soon.

You could send a message to them on aliexpress and they should reply.

Pages