It might be worth checking out how accurate the meters on the Korad supply are. Recently I bought a bunch of Gophert PSUs (these are switching ones) from Aliexpress but their meters are shockingly accurate. Especially given the price.
That is some of the very newer designs. Mine is much older, also has three snap-in caps in parallel. The photo is from January 2014, when I've bought my second Korad PSU and was modifying the hilarious heatsink for a proper one, so the fan can shut the fuck up.
Also I've never done any calibration to any of my Korad PSUs, would be interesting to test, have a calibrated 34401 available now so...
Hello, I'm looking for a good (but not expensive) power supply unit for my personal laboratory and I'm observing by long time the following model on aliexpress store:
https://it.aliexpress.com/item/1005001615696493.html?spm=a2g0o.cart.0.0.5a3d3c00R6iaCI&mp=1
it is a single channel 300W programmable power supply with a declared accurancy of 0,01mA for current and 0,1mV for voltage with capability to record and graphically visualize voltage current and power . It is possible to define 100groups of timed programmed steps and also to manage battery charge slopes. RS232, analog and USB interface are available (LAN optional) to be conneted to a PC to remotly control and to visualize V,I,P,R parameters. Sense compensation is another feature with a 4,3" rgb graphical display. Price = 511euros.
Brand is AB-F but I suppose could be a rebrand for eTommens manufacturer: http://www.etommens.com/dgweb_content-847183.html
Anyone has experience with these devices? What do you think about that?
(I attached datasheet of previous 5 digit version =0,1mA, 1mV)
Thank you
That is some of the very newer designs. Mine is much older, also has three snap-in caps in parallel. The photo is from January 2014, when I've bought my second Korad PSU and was modifying the hilarious heatsink for a proper one, so the fan can shut the fuck up.
Also I've never done any calibration to any of my Korad PSUs, would be interesting to test, have a calibrated 34401 available now so...I really need to do that. I put a better, quieter fan in, but the janky heat sink makes it moot.
Hello, I'm looking for a good (but not expensive) power supply unit for my personal laboratory and I'm observing by long time the following model on aliexpress store:
https://it.aliexpress.com/item/1005001615696493.html?spm=a2g0o.cart.0.0.5a3d3c00R6iaCI&mp=1
it is a single channel 300W programmable power supply with a declared accurancy of 0,01mA for current and 0,1mV for voltage with capability to record and graphically visualize voltage current and power . It is possible to define 100groups of timed programmed steps and also to manage battery charge slopes. RS232, analog and USB interface are available (LAN optional) to be conneted to a PC to remotly control and to visualize V,I,P,R parameters. Sense compensation is another feature with a 4,3" rgb graphical display. Price = 511euros.
Brand is AB-F but I suppose could be a rebrand for eTommens manufacturer: http://www.etommens.com/dgweb_content-847183.html
Anyone has experience with these devices? What do you think about that?
(I attached datasheet of previous 5 digit version =0,1mA, 1mV)
Thank you
Hello, I'm looking for a good (but not expensive) power supply unit for my personal laboratory and I'm observing by long time the following model on aliexpress store:
https://it.aliexpress.com/item/1005001615696493.html?spm=a2g0o.cart.0.0.5a3d3c00R6iaCI&mp=1
it is a single channel 300W programmable power supply with a declared accurancy of 0,01mA for current and 0,1mV for voltage with capability to record and graphically visualize voltage current and power . It is possible to define 100groups of timed programmed steps and also to manage battery charge slopes. RS232, analog and USB interface are available (LAN optional) to be conneted to a PC to remotly control and to visualize V,I,P,R parameters. Sense compensation is another feature with a 4,3" rgb graphical display. Price = 511euros.
Brand is AB-F but I suppose could be a rebrand for eTommens manufacturer: http://www.etommens.com/dgweb_content-847183.html
Anyone has experience with these devices? What do you think about that?
(I attached datasheet of previous 5 digit version =0,1mA, 1mV)
Thank you
For abotut the same price you can get a second hand 300W HP/Agilent PSU. This I'd never pay so much for, especially if it's something noname, and likely a switchmode noise transmitter.
I've been looking at this 1800W A-BF... only reason i havent bought it is because I fear burning the house down with it
Any news with what Siglent is doing with that 5000 series yet tau? Been eyeballing one of those but seems like a year wait
I need an accurate PSU with almost 200W of power.
I need an accurate PSU with almost 200W of power. I attched the internal power supply composition, I suppose it could be a switching + linear regulation method as declared by custumer for the previous less accurate model SS-L3010SPL (about 360 euros).
I'm comparing DP832 vs SPD series programmable supply, I see Rigol is more accurate respect to Siglent device but more expensive.
(and I'm not adverse to adding a voltage divider if finer adjustment is required)
The PSU is going to be an xmas present (hence the limited budget).
I'm comparing DP832 vs SPD series programmable supply, I see Rigol is more accurate respect to Siglent device but more expensive.Which model ?
These ?
https://www.siglenteu.com/power-supplies/spd3303x-spd3303x-e-series-programmable-dc-power-supply/
Yes, the SPD3303X model
PS: regarding the Siglent PSUs, they can be hacked to get more precision, if you are really cash strapped. SPD3303X-E with 10mV/10mA precision can be hacked to a SPD3303X model with 1mA/1mV. Not commenting on the ethics/legal/warranty aspects of that modification, it's a tradeoff you have to consider yourself. But in my view, a hacked SPD3303X-E is infinitely better than a crappy PSU.