One thing i found useful for my (home built) power supply are twin banana plugs, the ones i got are also stackable I wired them with red and black, then used some braided sleeving half way up the pair, makes it simple to plug in, and allows connection to a meter etc if needed.
The transformer looks to be rather small for a 400W supply - typically the DC o/p current is around .62 x Irms and Vdc is approx .9 x Vrms so I'd expect the VA rating to be 400/(.63 x .9) = 700VA. Eyeball estimates suggests the transformer is around 135mm x 65mm which I'd expect to be around 500VA. So there a few possibilities: 1) The fan cooling the transformer dramatically increases its rating. It obviously will help but I wonder to what extent given the primary will be deeply buried, and the bottom won't get much airflow. 2) They don't expect prolonged usage with maximum load on all four channels. It certainly wouldn't be typical lab usage, although 360W from the two high power channels is not an unreasonable scenario. 3) The transformer runs very hot at full load and the lifetime is reduced. 4) My size estimates aren't very good. Most likely I suppose all four points will apply to some extent.
Nice video. To be honest I want it also but it cost a bit too much but for sure my next investment after some good multimeter for sure ..i did find that good power supply is pretty important.
@bblod4896 more likely a lack of repair information, with the companies of the world turning into profiteering greedy corporations , creating a throw away wasteful society
No Dual tracking capability in the review was the only disappointment. As you don't run Windoze machines one can understand why you didn't try the new EasyPowerX SW for the presence of a SCPI command page. However,I agree, a webserver should have one ......
You can manually send SCPI commands with TestController, the command line will send any command typed to the selected device. And with TC you are not limited to Windows machines.
No fan of all the gunk, especially on the connectors. Its just a hassle when the thing needs to come apart for changing those fuses... And historically some gunk has, with age, turned into conductive goo that destroys everything.
@@ulwur this looks like silicone, so I’m fine with it, I don’t expect it to be a problem, and it’s easy to pick off if needed. I know the glue you are referring to which goes hard, conducts and corrodes anything metal it is touching, had to deal with that stuff many times.
This was a very good video build quality was good but software not very good hey they need to redo this software but i use this psu good for me I found this software very poor.
@@simontay4851 yes that's true, maybe I'm fans from old tools 😆 but ya, I have both type of transformer for the bench power supply (GW Instek and Kenwood)
@@simontay4851 they certainly need to spend more time developing it to make it functional, looks like a Beta and they forget to finish it before release. Just use Test Controller, it can even do list mode be TC handling the settings and stepping through that way instead. TC can do loads and I barely use it myself, logging, step control, graphing… it’s very good.
One thing i found useful for my (home built) power supply are twin banana plugs, the ones i got are also stackable
I wired them with red and black, then used some braided sleeving half way up the pair, makes it simple to plug in, and allows connection to a meter etc if needed.
The transformer looks to be rather small for a 400W supply - typically the DC o/p current is around .62 x Irms and Vdc is approx .9 x Vrms so I'd expect the VA rating to be 400/(.63 x .9) = 700VA.
Eyeball estimates suggests the transformer is around 135mm x 65mm which I'd expect to be around 500VA. So there a few possibilities:
1) The fan cooling the transformer dramatically increases its rating. It obviously will help but I wonder to what extent given the primary will be deeply buried, and the bottom won't get much airflow.
2) They don't expect prolonged usage with maximum load on all four channels. It certainly wouldn't be typical lab usage, although 360W from the two high power channels is not an unreasonable scenario.
3) The transformer runs very hot at full load and the lifetime is reduced.
4) My size estimates aren't very good.
Most likely I suppose all four points will apply to some extent.
Nice video. To be honest I want it also but it cost a bit too much but for sure my next investment after some good multimeter for sure ..i did find that good power supply is pretty important.
I wonder if in thirty years, that white "glue" will corrode the electronics the way Sony Bond (the brown glue) does to older electronics. 🤔
@@bblod4896 I highly doubt any modern devices will last 30 years, I think you would be lucky to get 15-20
@TheDefpom
😂 It will be due to the lack of available repair parts. A sad time we live in.
@bblod4896 more likely a lack of repair information, with the companies of the world turning into profiteering greedy corporations , creating a throw away wasteful society
@@TheDefpom
Yep.
Considering all the connectors were gunked to stay secure, it’s kinda shocking to see that one wasn’t latched properly at 5:14!
No Dual tracking capability in the review was the only disappointment. As you don't run Windoze machines one can understand why you didn't try the new EasyPowerX SW for the presence of a SCPI command page. However,I agree, a webserver should have one ......
You can manually send SCPI commands with TestController, the command line will send any command typed to the selected device. And with TC you are not limited to Windows machines.
@@henrikjensen3278 Of this I am very aware being an active EEVblog member and Siglent supplier to Defpom.
@@tautech8196 yes I probably should have made that a bit clearer, I covered series mode but didn’t show that there is a 0V available.
@@TheDefpom And go even further, show exactly how it can be used as a dual tracking PSU. ;)
@@TheDefpom there is room for a 3rd video
No fan of all the gunk, especially on the connectors. Its just a hassle when the thing needs to come apart for changing those fuses... And historically some gunk has, with age, turned into conductive goo that destroys everything.
"some gunk has... ...turned into conductive goo..." Not the white gunk that is in this PSU. Its the horrible yellow glue that goes conductive.
@@ulwur this looks like silicone, so I’m fine with it, I don’t expect it to be a problem, and it’s easy to pick off if needed.
I know the glue you are referring to which goes hard, conducts and corrodes anything metal it is touching, had to deal with that stuff many times.
This was a very good video build quality was good but software not very good hey they need to redo this software but i use this psu good for me I found this software very poor.
Emm, for my perspective - I don't like toroid transformer. Still loving E plate transformer. But overall for mV it's amazing!!!
Why. Toroidial transformers are more efficient and radiate less magnetic interference.
@@simontay4851 yes that's true, maybe I'm fans from old tools 😆 but ya, I have both type of transformer for the bench power supply (GW Instek and Kenwood)
The web interface is fncking useless. Why did they even bother.
@@simontay4851 they certainly need to spend more time developing it to make it functional, looks like a Beta and they forget to finish it before release. Just use Test Controller, it can even do list mode be TC handling the settings and stepping through that way instead. TC can do loads and I barely use it myself, logging, step control, graphing… it’s very good.