There are a few of these little power supply modules on ebay, so I thought I'd get one and give it a thorough test. Voltage holds relatively well, with just a slight drop under overload conditions, and the module layout and filtering is actually very good.
I bought the module from this multi-option ebay listing.
http://www.ebay.co.uk/itm/311348022000
I bought the module from this multi-option ebay listing.
http://www.ebay.co.uk/itm/311348022000
The ebay link is 404 unfortunately.
Battle scarred hands Clive
I use these on several DIY electronic projects including a clock thats plugged into the mains all the time,been 100% reliable for over 2 years!!!.Love your channel and have watched most of your content.
"flybacky type driver" haha
That secondary wire is probably actually TEW (Triple Enamelled Wire). It gets dipped 3 times for extra safe insulation and can in fact be used without the yellow mylar insulation between primary and secondary. It usually comes from Japan actually. Quite surprised to se it in a Chinese item. I've used some of that myself in a similar application.
👍
A lot of these power modules on ebay from China are actually well designed, because they are units the Chinese typically use in their own applications. I have several different variants and after 6 years they are all still running, one is used non stop every day. The stuff you don't want to buy off ebay is the stuff that the domestic Chinese don't use, and is purely to scam foreigners and made by sketchy people. Stuff like the fake flashdrives, the fake lithium batteries, the fake power banks, the fake charging boards etc. I get the feeling that real Chinese don't buy those items, and it's just mostly for export by Chinese scammers. However some of the stuff on ebay is used in the domestic industries in China and is thus legit, like this power supply, like the actual proper 1w led diodes, like the large resistor packs, like the soldering iron you are using etc.
Hey clive, was going to ask too, any chance you could put it on a scope and see how clean of a waveform it's putting out?
I ordered a 5V version and I could tell it was at least somewhat quality when I saw the construction of it. Your teardown confirmed these will work great with electronics projects. Thanks clive!
Hello I have a blown computer psu, would you be interested in taking it apart to investigate the cause of its death ?
What a shame to pull the transformer apart and render it useless. Surely the fact it passed the HV test would have given you a reason to give it a long and useful life.
Would be nice to look at the outfit and see how ripple free it is
I looked for a way to PM you with no success. Instead of throwing a comment on your latest video, I chose one that covers what I am looking at, [albeit a little old]…
I have a 12V 10A switching supply [in a laptop style power supply case with a cord on each end.] that got rained on while plugged in. It now cycles on and off in 1 second intervals. Boots with full power but then immediately shuts down for a second, then back on for a second. I tried replacing the 8 pin main MOSFET control chip but still acts the same way. I was thinking of trying the Opto-Coupler next because it seems the bootstrap is working but not getting feedback [FB] so it shuts down and re-attempts the bootstrap???
If it is not the Opto-Coupler then do you have any other ideas of what the problem could be?
Must be interesting for some sellers on eBay where they have an item that hasn't sold very well for the past few months and then suddenly they sell out all their stock in a week (like this item did). If they only knew the power of BigClive. 😉
The problem is that one from some factory is well put together but how do we differentiate them from the other 20 varieties that may or may not be as well put together other than doing our own autopsies.
Use DuckDuckGo for your search not Google I typed in 63g20a and the datasheet came right up