Can you guess what it is?
Added 2020-10-06 04:21:56 +0000 UTCThis eBay special is very cool. It's firmly in the category of an industrial module.
The video is currently uploading (if all goes to plan.)
I have to say that the build quality is pleasingly professional, and even the transformer looks good quality, with what appears to be a triple insulated secondary (that just means thicker winding insulation).
If the back of the PCB looks a bit freaky in terms of component count, then relax in the knowledge that it's just multiples of series/parallel components where there would normally just be one or two. The circuitry does just reverse engineer as a traditional unit.
Comments
Looking at all the isolation slots there are higher than normal voltages involved, looks like a pair of 5v zeners in there, 415 to 5v psu ?
2020-10-06 19:20:42 +0000 UTCThat's a particularly neat feature. If the 431 circuit fails the zener will step in to run the optoisolator and try and minimise the damage by capping the output voltage.
Big Clive
2020-10-06 18:41:39 +0000 UTCI should pay better attention! There was a second picture! I like the way they series the CY caps. If one fails, the other still on duty. Must be from a name brand product.
MarkM
2020-10-06 18:37:30 +0000 UTCmains powered SMPS . Don't know why it has a ZD1 zener diode, and U3 looks like a TL431 !!
MarkM
2020-10-06 18:34:17 +0000 UTCAbout the same.
Big Clive
2020-10-06 18:29:07 +0000 UTCThe prominent oriental eBay sellers seem to have supply and demand systems that raise the price based on demand.
Big Clive
2020-10-06 18:28:50 +0000 UTCFeel like some form of main power supply
Manoel
2020-10-06 18:17:30 +0000 UTCA very well designed SMPS.
Charles Bruckner
2020-10-06 15:57:22 +0000 UTCWith all the slots and spacing it looks like it is dealing with high voltage. Also high voltage on the output with the slot in the lower left which looks like the mounting hole is chassis ground.
Nani Isobel
2020-10-06 15:37:40 +0000 UTCTransformer Module for 240V AC in to some sort of pure DC Out supply with no noise and a constant current ?
Robert
2020-10-06 14:36:44 +0000 UTCStrobe supply?
2020-10-06 14:28:36 +0000 UTCLooks like a 12v power supply to me.
Matt Larson
2020-10-06 13:53:10 +0000 UTCThat supply is a thing of beauty.
Alice Chapman
2020-10-06 13:34:16 +0000 UTCHope it comes with lube or I ain't watching.
2020-10-06 13:18:21 +0000 UTCI don’t think it’s a component as such, it looks to be one end of the transformer windings with extra solder for support and current carrying capacity
Paul Ferguson
2020-10-06 12:57:35 +0000 UTCi think this is a really good SMPS
Groovy1024
2020-10-06 12:55:43 +0000 UTCWhat is that component above C5?
Paul Malloy
2020-10-06 12:47:31 +0000 UTCPidgeon Tracker
Whippet Gas
2020-10-06 12:20:52 +0000 UTCWell judging by the anti-tracking slots and the wide separation on the right and the seriously chunky inductors and capacitors on the top side, I'd say that it's clearly a thing.
Steve Brace
2020-10-06 11:58:25 +0000 UTCSMPS with decent Isolation
Whippet Gas
2020-10-06 11:21:38 +0000 UTCA PSU of some kind. With a lot of separation in it. Something that needs to withstand surges? I haven't a clue.
horrovac
2020-10-06 10:19:22 +0000 UTCI have no idea what it is, but I look forward to Clive saying "chunky" many times.
Kim & Nix
2020-10-06 10:04:51 +0000 UTCI think it's the 400v 2 phase input SMPSU that you were talking about a short while ago. 👀
Robin Cooper
2020-10-06 09:06:38 +0000 UTCI had a guess based on the inputs and outputs. Want far off. I googled mp-u36sxx to cheat afterwards 😋
JT
2020-10-06 08:10:02 +0000 UTCWell I have a half day today so I will enjoy this over lunch!
Michael Thompson
2020-10-06 07:52:25 +0000 UTCHow much was it on eBay Clive? Amazon have them @ £10.99.
David Jackson
2020-10-06 06:59:48 +0000 UTCOh, as far as the cost going up since you bought it, I'm sure the widget manufacturers watch your channel and triple the prices as soon as you show them. I imagine you're quite popular with them.
Paul Ste. Marie
2020-10-06 06:38:53 +0000 UTCSeems like a typical PSU. Extra parallel resistor positions for higher current capacity or to allow assembling variants with different specs?
Paul Ste. Marie
2020-10-06 06:35:17 +0000 UTCIt would certainly work for that in heavy industrial environments.
Big Clive
2020-10-06 06:13:35 +0000 UTCThat does kinda give it away.
Big Clive
2020-10-06 06:13:12 +0000 UTCLooks like a choke or inductor.
Guardian Lion
2020-10-06 06:09:46 +0000 UTCI think it's input is less its got what look like 250v 3.15A fuses on the line and neutral, though I think your close. I I was thinking it might have power factor correction but in don't think there are enough components for that. Pretty descent isolation at first glance. I have to guess the output rating is higher than 3 amps possibly but no real way to know. I can't see something stepped down that far would ever trip a 3.15A input fuse so I would think for that wattage they would use a cheaper smaller fuse perhaps
Michael Wellman
2020-10-06 06:03:44 +0000 UTCa PSU for something you can put up in you butt?
Niklas Haglund
2020-10-06 05:40:12 +0000 UTCTo be fair, you did mention it on Saturday's stream, showed us the board and mentioned the gaps in the PCB.
evilution
2020-10-06 05:39:35 +0000 UTCI'd guess from the rectification and smoothing on the primary side it's a heavily regulated PSU, possibly for powering a comms bus?
The Tinkering Shed
2020-10-06 05:28:24 +0000 UTCThat’s quite a step down converter. Clive gives us the yummy yummy cake 😂
Cerity
2020-10-06 05:27:54 +0000 UTCIt really looks like a switch mode power supply. Unless it is designed to go the other way and control a mains load from a low voltage DC signal. I
2020-10-06 04:56:06 +0000 UTCJust guessing :-) AC 380V to DC 12V 3A 36W Switching Power Supply Module Switch Board Ebay.co.uk £9.62 - £10.68 6thOct2020 https://translate.googleusercontent.com/translate_c?depth=1&hl=en&prev=search&pto=aue&rurl=translate.google.com&sl=zh-CN&sp=nmt4&u=https://detail.1688.com/offer/595737385307.html&usg=ALkJrhhmMlHykG19x9T4dqb2AkhStVjBMg
John Harrison
2020-10-06 04:52:50 +0000 UTCI’m impressed, by far one of the best eBay PSUs I’ve seen you show. However I have no clue what it powers. The manufacturer 慕能电子 (Munpower Electronics) also looks reasonably professional with some decently detailed specs (although their English documentation is very lacking), sadly it’s nowhere near the level of Linear Technologies or Murata PSU documentation but I imagine the price is much easier on the wallet. http://www.munpower.com/productshow-13-2.html
WizardTim
2020-10-06 04:48:36 +0000 UTCA great big power filter then some extra capacitors and thyristors (sp?). I would guess PWM motor power supply but I don't see any way to modulate it. Maybe just a regular power supply like others are guessing but for something sensitive? I really like this guessing challenge! What is that black rubber component bottom left? Just a capacitor or something else?
PeteyPak
2020-10-06 04:45:40 +0000 UTCAn industrial (over engineered) switch mode power supply
2020-10-06 04:44:03 +0000 UTC28 VDC rail-mount power supply??
Chris Blair
2020-10-06 04:34:50 +0000 UTCCan’t be, it’s not on fire...
Lostngone
2020-10-06 04:31:56 +0000 UTCNo clue... Power supply for your 3D printer?
Lostngone
2020-10-06 04:31:08 +0000 UTCThe board says MP-U something so I think it is a control chip for a member of parliament.
Mark Trombley
2020-10-06 04:26:03 +0000 UTCClose. In an electronic sense it's as delicious as cake.
Big Clive
2020-10-06 04:25:47 +0000 UTCIt's a cake? Pizza?
Tim Albers
2020-10-06 04:24:34 +0000 UTC
