Products > Test Equipment
Power supply for home lab - do I really need a R&S?
nctnico:
--- Quote from: temperance on May 06, 2024, 08:42:16 pm ---
--- Quote ---I'm not impressed. I'm not a fan of PSUs with coarse / fine control. A 10-turn pot doesn't cost that much.
--- End quote ---
Not to mention that power supplies with ten turn pots are rather rare.
--- End quote ---
Not at all. All the older quality power supplies from respectable brands like HP/ Agilent, Delta, etc have ten turn pots. Nowadays you even find these on el-cheapo Chinese power supplies (if they have analog controls).
thm_w:
E36313A is $2,200 which is a large step up in price, at that point you should compare it to the NGC100/NGL200/etc. I don't think its relevant to this discussion.
I wouldn't buy NGE100 unless it were <$500 used, you can read some older threads:
https://www.eevblog.com/forum/testgear/newly-released-entry-level-rs-nge100-power-supply-series/
https://www.eevblog.com/forum/testgear/rs-nge100-voltage-jumping-around/
There is also the UDP3305S: https://www.eevblog.com/forum/testgear/uni-t-udb3000s-series-udp3305s-udp3000s-e/msg5455556/#msg5455556
Rigol you'd be looking at DP2031 or DP932U: https://www.rigolna.com/products/dc-power-loads/dp2000/dp2031/
Which I don't recommend at this time due to the poor font used.
FranciscogGomez:
Hello and sorry for my late respsonse,
I will address/ comment back to most of the comments in this one:
--- Quote from: jonpaul on May 06, 2024, 04:57:01 am ---
We can assit you better if you can precice your applications and experience:
eg: you are Beginner, amateur radio, techincial, emgineer, ?
uses: Testing and developing microcontrollers?
General analog circuits?
Batterty charging?
--- End quote ---
Hello Jon,
I'm an electrical engineer and my projects are 90% digital embedded systems-related, the 10% extra will be RF & analog circuits (few occasions now and then)
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Thanks for your recommendation Hacked; and for the remark Ice-Tea, it's a good one to keep in mind.
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--- Quote from: nctnico on May 06, 2024, 07:14:36 am ---I'm missing the Keysight E36313A from the list. A rather unique feature is that it has two current ranges so it can measure low currents more accurately compared to other PSUs.
--- End quote ---
The reason is not the list is beacuse the price, way out of budget.
--- Quote from: thm_w on May 06, 2024, 10:04:18 pm ---E36313A is $2,200 which is a large step up in price, at that point you should compare it to the NGC100/NGL200/etc. I don't think its relevant to this discussion.
--- End quote ---
thm_w, Spot on!
Thanks, I'll trying to get one around that price range +/-150EUR. For the Rigol PSU, I personally don't like their front panel presentation. (for this reason, I did not add them to the list)
--- Quote from: blackdog on May 06, 2024, 10:49:07 am ---What I have seen from testing regarding R&S power supply's, that does not make me happy.
Poorly regulating current limitation and digital pre-regulation despite the advantages regarding energy consumption I am also not in favor of due to the commonmode injection of interfering signals.
--- End quote ---
--- Quote from: blackdog on May 06, 2024, 10:49:07 am ---I have two pieces of GW-Instek GPP-4323 power supply and am happy with them.
If you have the budget, go for the LAN version, that makes it easier to manage the power supply through Testcontroller if you find this easy.
Furthermore, there are people on this forum who make adjustments to the firmware of these power supplies, look it up.
--- End quote ---
Thanks for your comment and hint, Bram
--- Quote from: temperance on May 06, 2024, 03:24:09 pm ---No TTi power supplies in the list? I have three TTi power supplies and they are all pretty good.
--- End quote ---
thanks, temperance. I have added the PL303QMD-P. With -P in order to have the ports for remote control. However, the price is close to the R&S. I'll keep an eye on this one on the second hand market as well.
FranciscogGomez:
--- Quote from: Rydda on May 06, 2024, 06:38:38 pm ---I have the R&S NGE103, and I am very fond of that one. Especially since the fan turns off at low currents. But be aware that the max power output per channel is 33.6 Watt ,so you cannot do 32V @ 3A .
--- End quote ---
hey Rydda, You are right! I overlooked this important specification from it
FranciscogGomez:
Based on your previous comments and suggetions, I have update my list:
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