A bit slow to report here as hobby time has been limited. I received my 5015 last week. Packed crazy well in a rectangular Styrofoam cooler type container. Components and assembly appear to be high quality to my amateur eyes. Super easy to set up as all the connection points are well labeled. Haven't got around to making an enclosure. So just did a couple quick tests to make sure it works. Seems to work really well. Voltage and current see rock steady and easy to control. Very happy so far. Need to hook up an oscilloscope after I finish the power supply, but my sense is it in a totally different league than the benchtop psu in the bottom picture.
They are both buck converters and work similar. It is basically a matter of quality and output level.
The one on banggood is a lot harder to work with and I am going to guess not as accurate.
The LCD screen on the 5015 is an amazing tool that makes using it far more plesent.
The biggest difference though is the 5015 is good for 50v and 15A, the one on banggood is only good for 36V and 6A.
If you don’t need more then that, then they will both do the job. Although they also have cheaper dp and dps options if you don’t need as much current.
Higher current requires much better components and design.
Yeah, that would work just fine. I have that model as well myself and it works great. That said the firmware is nicer on the DPS series but nothing that major.
Yeah, it was posted in my review but the above quote is the gist of it.
That is one thing I forgot to mention, the larger 3012 and 5015 allow you to charge batteries without a diode, which is much much better (it allows you to see the actual voltage of the batteries instead of just what the supply is putting out plus the diodes have a voltage drop as we know.
The ability to charge batteries with up to 15A is quite a nice feature to have.
You can look at the extra cost as a high powered battery charger.
So, I am considering ordering the DPS 5015. I have never used AliExpress. Do you guys preload a card to use with them? If so, what kind of card does it take?
They are secure enough that I just use my normal card. I mean aliexpress / alibaba is one of the largest companies in the world, I am gonna guess that they have halfway decent security.
I did not buy one of these, however I have in the past been greatly disappointed with these type of supplies due to my overly exuberant expectations.
Don’t expect to input 40V and have continuously variable output voltage from 0V to 32V AND be able to draw 12A along that whole range.
I am guessing here, but I’m thinking that you could possibly get that 12A only IF the input voltage is no more than say 1.5 times the output voltage.
Even that 12A might be an exaggeration.
For me, this could be useful for some portable power. Mate this with an 18V drill pack, and you could do all kinds of neat things with it.
I thought the same thing when I first ordered them but to date they have worked exactly as advertised. I have nothing that can use 30v @ 12 amps to test it with but on my smaller unit that is powered with a 12v power supply, it has no trouble providing the full 5A it is rated for up to 11v.
It most certainly DOES provide 12 amps no problem at all (well besides the shunts and mosfet getting warm), I do it all the time when testing multi-emitter lights among other things.
I have yet to have it not do what it should under any circumstances.
You misunderstand, I have 2 units and both function exactly as they should. 1 with a 12V input and the other with a ~40v input. I have no problem getting whatever voltage and amperage I want no matter what the input voltage is (as long as it is over the output naturally).
They actually make a GREAT substitute for a bench power supply and that is exactly what I am using them for.
The only thing I have not been able to test is both high voltage and amperage as I have nothing that can pull that much power.
Yeah, I can see how folks might interpret the operating ranges to mean that the product can operate in both extremes simultaneously. The product page does warn about it, but it isn’t stated in a clear manner. One has to know a bit how these budget buck circuits work to know that it stresses them to have too much voltage overhead on the supply side. You got to pay big bucks for what you are expecting. That is why mine will be powered by 1 to 4 DPS-600PD’s. That will enable it to be powered by 12, 24, 36, or 48 volts. Actually, much more choices will be available as they are being modded for variable voltage output.
I've also taken notice of the abundance of controlled user friendly dc-dc converters available recently. Search "DROK constant current" on amazon and you will get something almost like (or maybe the same as) these as well as a number of other neat things, like for example this:
Or even smaller ones without the displays that can even be used in a roomy light build, but still have pots for both voltage and current limits (the latter of which could be replaced by a remote knob for analog power control of a light).
NOTE: 1.You must make sure that the input voltage is 1.1 times higher than output voltage. Under large current circumstances, pay attention to heat elimination.
These seem like a great deal for what they're asking, no question. I paid several times the price of this setup for my 30V 10A linear supply.
Be careful with the cheap power supplies for these---remember: the only thing keeping you from the mains is that power supply; this buck converter is not isolated. I wouldn't want to be touching probes or live equipment all the time that is powered by a questionable AC/DC power supply. Spring a few extra bucks and at least get a Meanwell or other mainstream (and hopefully listed) AC/DC supply to power this with.
Depending on your needs, a laptop supply should be pretty reliable no? (maybe they don't handle abuse such as shorting well?) Often available for free.
So you are saying that you can input 49V and draw, say 6V, at 15A with this thing?
If that is true, I am very, very surprised! I will have to consider the DPS5015. As some others mentioned, being able to go over 42V is a must for some of the higher power COB emitters.
