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DP30V5A power supply module - test, opinion, applications

TechEkspert 13911 45

TL;DR

  • DP30V5A is a panel-type DC-DC power supply module rated at 5A, 32V, and 160W.
  • It runs from 6-40V, works in CC/CV mode, and lets you set maximum output voltage, current, and power with memory presets.
  • Compared with a 0.2% multimeter, voltage differed by ±1d and current by ±3d, which the test judged satisfactory.
  • It can modernize an existing analog linear supply or serve as a mobile source from a battery or recovered switching supply for laptops, printers, and similar loads.
  • At about $30, it is expensive enough that a complete mains-powered supply with similar parameters may be the better value.
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  • #31 17060970
    krru
    Level 33  
    GrandMasterT wrote:
    The modules also have a memory of several settings.
    When enabled, it starts up with the last settings, but is always disabled by default.


    I have one module from this series and, as I read in the manual and checked, the module starts with the "0" setting, and whether it should start or remain in standby after turning on, can be set.
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  • #32 17061228
    GrandMasterT
    Level 26  
    What is your software version? I have 1.0, at the very bottom in the SET menu there is some strange setting, probably a selection of the number of saved settings with which the module is to start, suggesting that the memory position is 9 while I can only set 3, although to be honest I never I was up. I can not set the automatic switching on of the output at startup, which does not bother me too much, in existing applications I could even consider it an advantage.

    I have one more module recently ordered, and as far as I remember, 1.14 software is already there, it is possible that it has the functions you are writing about, although so briefly after turning it on to see if it works at all, before commenting the seller, I did not notice any difference visually.
  • #33 17061298
    tzok
    VIP Meritorious for electroda.pl  
    M0 is always the current setting, memories are M1 to M9, but selecting other than M1 or M2 is moderately convenient. The latest module I have is 1.6. He already includes remembers the position of the regulation, e.g. when I last set the voltage with a 0.1V step, it will light up by default after entering the regulation. In 1.16 I already have the output turned on automatically after startup (but I don't use it).
  • #34 17061397
    GrandMasterT
    Level 26  
    I just checked and in 1.14 there is this option (output enabled by default) - as the last item in the SET menu.
    I also took a look at Dave's videos on EEVblog about these power supplies (there are several of them) - below, the producer says in the comments, announcing the removal of some noticed problems, hence probably some minor differences - Dave drove them a bit for an uncomfortable interface.

    By the way, if someone would be considering a 20V 2A module, I do not recommend it, it is better to pay extra and buy 30V 3A, especially since the price difference is not big. The smallest one completely stands out from the rest with soft, it is definitely less user-friendly. In the comments under one of the films, the producer writes that it is a design from 2013.

    How do I even switch to a setting other than M1 / M2?
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  • #35 17061436
    tzok
    VIP Meritorious for electroda.pl  
    Hold SET and S0 will appear over the output status icon, select S0 - S9 with the dial and confirm again by briefly pressing SET.
  • #36 17068502
    tomybb
    Level 26  
    kkknc wrote:
    Only if you unwind so much, and there will be a lot of it. Why not wind the whole thing with thicker wire as it should be?

    Because then I would have to buy the thicker wire, and this is what I have already used. But in the case of connecting two windings in a bridge, they must have perfectly equal voltages? The second winding I have wound must have a perfectly equal voltage?
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  • #37 17068946
    kkknc
    Level 43  
    You will not achieve the ideal, similar is enough.
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  • #38 17069360
    maniak0790
    Level 23  
    Anyone planning to buy these modules in groups?
  • #39 17069387
    piterek-23
    Level 33  
    maniak0790 wrote:
    Anyone planning to buy these modules in groups?

    Why raise the costs for a module?
    A group order includes customs costs and shipping in the country, and if you order it yourself, the package goes directly to you at no additional cost.
  • #40 17069492
    maniak0790
    Level 23  
    I do not cover the subject of foreign shipments too much, but if it is as you say, you need to be interested in the topic.
  • #41 17069501
    piterek-23
    Level 33  
    In short ..
    - you create an account on Aliexpress
    - you are looking for a module that interests you
    - you put it in the basket
    - you buy
    - you pay via "Przelewy24"
    - you wait a month
    - you enjoy the module

    Watch out! because you can become an Aliholic quickly :P
  • #42 17076375
    GrandMasterT
    Level 26  
    Alternatively, if you want faster, you can search on banggood and similar websites, where sometimes they already have goods in warehouses in the EU, then the shipment may be even in a week, prices are roughly the same. Unfortunately, the choice is much smaller, especially as the EU magazine is one of the search criteria. Nevertheless, it is worth checking, because the shipment takes up to 2 months with ali in unfavorable winds.
  • #43 17076385
    kkknc
    Level 43  
    Most often it is more expensive from Europe, in addition, most often you still pay for the courier shipment. Although there are exceptions.
  • #44 17083517
    Szyszkownik Kilkujadek
    Level 37  
    piterek-23 wrote:
    Watch out! because you can become an Aliholic quickly
    I do not recommend it, it got me too. ;-)

    When supplying this module from a transformer, it is enough to provide only a Graetz bridge, or is a sufficiently large capacitor also necessary?
  • #46 18433556
    LA72
    Level 41  
    DP30V5A power supply module - test, opinion, applications

    Hello.
    Recently, a modernized version of this module appeared, called RD6006 / W.
    Link to Aliexpress .

    The module has USB and WiFi communication.
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Topic summary

✨ The DP30V5A power supply module is a versatile panel-type device capable of delivering up to 5A at 32V, with a total power output of 160W. Users have reported satisfactory performance, noting its ability to operate in constant current (CC) and constant voltage (CV) modes, with adjustable output settings and memory for presets. Some users highlighted the need for a robust transformer to avoid output disconnection under load. Comparisons with other models, such as the DPS5015 and DPH3205, indicate a preference for the DP30V5A due to its features and price point. Discussions also touched on the potential for using the module as a battery charger and for testing various electronic components. Concerns were raised about the module's limitations in voltage and power settings, with suggestions for software modifications to enhance functionality. Overall, the DP30V5A is praised for its accuracy and reliability in various applications.
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FAQ

TL;DR: DP30V5A delivers up to 92 % efficiency [Elektroda, TechEkspert, post #17049202]; “He does what he has to do” [Elektroda, Anonymous, post #17049452] Cost ≈ $30, 0–32 V, 0–5 A. Why it matters: you can add laboratory-grade digital control to any 6–40 V source for little money.

Quick Facts

• Output range: 0–32 V, 0–5 A, 160 W max [Elektroda, TechEkspert, post #17049202] • Input range: 6–40 V DC, self-consumption 17 mA [Elektroda, TechEkspert, post #17049202] • Accuracy: ±0.5 % + 1 d (V), ±0.5 % + 2 d (A) [Elektroda, TechEkspert, post #17049202] • Peak efficiency: 92 % at 30 V in, 10 V out, 2 A [Elektroda, TechEkspert, post #17049202] • Street price: US $28–35 shipped [Elektroda, sylweksylwina, post #17049249]

What is the DP30V5A power module?

A compact buck converter panel supplying 0–32 V at up to 5 A (160 W). It shows set limits and live V-A-W readings and stores nine presets [Elektroda, TechEkspert, post #17049202]

How accurate are its voltage and current readouts?

Measured deviation was ±1 count in voltage and ±3 counts in current versus a 0.2 % meter, matching its ±0.5 % spec [Elektroda, TechEkspert, post #17049202]

Which power source works best?

Feed 6–40 V DC. Users report stable 5 A only when the source delivers ≥24 V 8 A or 400 W transformer + filter [Elektroda, Anonymous, #17049452; SylwekK, #17050147].

Do I need a large smoothing capacitor after a transformer?

No. A Graetz bridge alone suffices; the module’s input capacitors handle ripple [Elektroda, kkknc, post #17083534]

Three-step hookup from raw transformer?

  1. Connect secondary to a 10 A bridge rectifier. 2. Wire bridge DC output to DP30V5A IN terminals. 3. Add 1 A slow-blow fuse in series for safety. Done.

Can it charge batteries safely?

Yes. Constant-current/constant-voltage plus programmable OVP/OCP make it suitable for Li-ion, lead-acid, and Ni-MH packs [Elektroda, kkknc, #17049510; SylwekK, #17050147].

How does DP30V5A compare to DPS5015 or RD6006?

DPS5015 raises current to 15 A but needs a fan and costs ~US $45; RD6006 adds USB/Wi-Fi and 60 V 6 A output for ~US $60 [Elektroda, LA72, #17049488; LA72, #18433556].

What is the real total cost for a bench PSU build?

One user spent PLN 20 on a custom case and PLN 50–100 on a toroid, bringing the full build near PLN 190 (~US $50) [Elektroda, SylwekK, post #17050207]

Is firmware upgradable or modifiable?

Community firmware exists for DPS-series; similar work may reach DP30V5A, but current mods are “very poor” compared with stock [Elektroda, tzok, post #17051858]

How do I save and recall presets quickly?

Hold SET, rotate to choose S0–S9, press SET to load; M0 is live, M1–M9 are stored slots [Elektroda, tzok, post #17061436]
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