DP30V5A power supply module - test, opinion, applications
The DP30V5A module costs ~ $ 30, which is a considerable amount, because at this price we can buy a complete power supply with similar parameters, adapted to mains supply and with analog regulation. Digital parameter adjustment and indication of the output power are an added value in the DP30V5A. The module can be used to modernize or expand the functionality of the existing linear power supply with analog regulation. Another application may be the use of the module as a mobile power supply, using a battery or a "recovered" switching power supply as a power supply, e.g. being a power supply for a laptop, printer, etc.
The power supply has a surprisingly small heat sink. The high efficiency of the impulse converter allows for high power operation without excessive heating of the switching elements.
The resistor used to measure the output current is located close to the input and output terminals:
The following elements are mounted on the heat sink:
J652 - MOSFET P 60V 28A 38mom,
RB085T - 60V 10A double Schottky diode.
The module for its own needs consumes about 17mA with a 30V power supply.
The shape of the voltage at the output with the parameters Uwy = 10V, Uwe = 30V and currents successively 0A, 0.5A, 1A, 2A, 3A, 4A, 5A:
This is how the efficiency of the power supply looks like with an input voltage of 30V, output voltages of 5V and 10V and an output current of 0.5A - 5A:
And efficiency at a constant output current of 1A, output voltage adjustable in the range of 1-28V, supply voltage 30V:
What do you think about this panel power supply - where can it be used?
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Comments
Everything is great, but the price is lethal ... [Read more]
I have this module :) From my observations: the encoder has a lot of resistance, maybe it is a matter of my copy. The system does not allow overloading the power source it is powered by. I had to use a... [Read more]
It is better to add to the DPSxxxx series. I have a DPS5015 myself and so far it has been doing well. Although the fan starts to "howl" when the load exceeds 10A. [Read more]
I am wondering about it myself. Make a good and accurate battery charger. Or for testing relays, coils, motors etc. [Read more]
DPH3205 is also quite interesting - you can read a lot about it, and the price (I think) is not too high, $ 35 with shipping. [Read more]
I have had it for some time and am happy with it. I drive it with a 24V 8A transformer and it gets the full range of currents and voltages. As for the price, I have a different opinion. For PLN 120 it... [Read more]
AVE ... Where can I buy a 30V / 5A analog laboratory power supply for 30 bucks (around 100PLN)? At this price, there are some crap 0-15V 0.6-2A power supplies, the cheapest power supply with zero current... [Read more]
However, remember that these prices are for the modules themselves. Add a good transformer, bridge and connectors. Well, the housing and connecting cables would also be useful. And at some point you... [Read more]
The metal casing cost me PLN 20 (I designed it myself). Bridge, connectors - cheap general cargo, and I had a chance - if I bought it, it would probably cost PLN 50-100 for a toroid or an alternative in... [Read more]
I bought myself a whole series of these power supplies out of curiosity, more or less at the time when Dave on EEVBlog was describing the 20V 2A and 30V 3A or 5A versions - the movies were probably at... [Read more]
AVE ... Could you please provide more details and show the pictures? [Read more]
By the way, my power supply looks like this: https://obrazki.elektroda.pl/5196577700_1519118535_thumb.jpg https://obrazki.elektroda.pl/3937629100_1519118608_thumb.jpg [Read more]
And here one of mine, still at the stage of assembly, the housing, of course, recovery from something (probably some ISDN or something like that), the transformer and the module in height come into contact: ... [Read more]
What I miss most in these modules is the possibility of limiting the voltage setting range and limiting the power. For some time now I have been "tormenting" the author / producer about it. This would... [Read more]
Take a look here . This is one of the people who modify the software for the DPSxxxx models. [Read more]
I've seen it, but compared to the stock soft, this alternative is very "poor". [Read more]
I use such a power supply, the GOPHERT CPS3205. CC CV 0-32V 0-5A Mains power, compact housing. price 45 $ (~ 160PLN) I was also thinking about the discussed panel power supply, but with a price difference... [Read more]
My friends have a DPS5015, I want to use an old transformer from the 1950s 220 / 110V 5A 1100VA to drive it - how to do it? simply unwinding the secondary winding to about 40V will make me stay with only... [Read more]
Sell and buy the right one. [Read more]