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Old 11-20-2021, 06:29 AM   #2
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Join Date: Jul 2011
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Default Re: Mosfets for Smps

This is something that need to brought in this post because this brand of power supply are found for a lot of engraving and 3D printers so if you are having this issue already this might start popping more often

Thank you for posting this issue with your switching power supply for your machine

Because I have this same exact brand on my 3D printer but I have recap mine already

I do not recognize the ic manufacturer logo on this device but I suspect that it is priority in nature and you might not find a replacement for it unless you can find another circuit diagram that is very similar to the circuit board design that you have in this switching power supply board

You might be better off buying a mean well brand switching power supply and try to buy one that has a higher current capacity than the one you have or at least the same current capability

If you can not find one and you have to buy the same brand again recap the switching power supply board with name brand capacitors so you can avoid failure like this in the future before you even plug it in for the first time

But if mine has a failure like this I already have found a replacement for it and I am posting a website link to it

Yes they are a little pricey in nature ( for even a new one ) that is why I have this item in my wish list

You can find these switching power supply on the internet and should be easily found
9 PC LCD Monitor
6 LCD Flat Screen TV
30 Desk Top Switching Power Supply
10 Battery Charger Switching Power Supply for Power Tool
6 18v Lithium Battery Power Boards for Tool Battery Packs
1 XBox 360 Switching Power Supply and M Board
25 Servo Drives 220/460 3 Phase
6 De-soldering Station Switching Power Supply 1 Power Supply
1 Dell Mother Board
15 Computer Power Supply
1 HP Printer Supply & Control Board * lighting finished it *

These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
2 Hem Saw Computer Stack Board

All of these had CAPs POOF
All of the mosfet that are taken out by bad caps

Last edited by sam_sam_sam; 11-20-2021 at 06:56 AM..
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