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Registered Member #2161
Joined: Fri Jun 05 2009, 03:36PM
Location:
Posts: 247
Well I managed to destroy my ATX psu. A thermistor blew up while my sstc was in operation, blowing up my GDT!? and all IC's as well as the psu.
Trying to make the best out of a bad thing I decided to scavenge the parts of the PSU, upon which I found a decent sized choke mounted in the encasing. Thinking I was going to get my hands on some decent awg magnet wire I proceeded to tear it apart.
I am pretty sure I just discovered the first "fake" !?!?! choke in history...what? Why would anyone put a fake choke in a PSU?? I have basically a fresh transformer base so its not a total loss, but still, any ideas on this one?
Registered Member #95
Joined: Thu Feb 09 2006, 04:57PM
Location: Norway
Posts: 1308
Lol, how cheap! Does copper really cost that much? I think the PSU production plant is being ripped off by who ever makes those chokes. You'd better check that the iron isn't actually lead!
Registered Member #1643
Joined: Mon Aug 18 2008, 06:10PM
Location:
Posts: 1039
Wow, That's just horrible! Do you think it's possible they have a ton in stock, same looks, and a few happen to be fake, not coiled? Or do you think they just thought "Lets give those electronic people something to play with when our PSU explodes!"
Registered Member #2161
Joined: Fri Jun 05 2009, 03:36PM
Location:
Posts: 247
Yes, Harry, it is not all bad. It is a nice core and bobbin. Assuming the core is actual iron. ;)
Judging by the way the bobbin itself is designed, I believe the supplier has an actual production line of fake chokes. The ridge used to hold the wire in place makes the bobbin useless for a transformer/choke without modification.
What do you guys think, a potential baby MOT? What gauge/wire ratios would you recommend? Maybe i'll make a baby SGTC out of it?
Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
brtaman wrote ...
Yes, Harry, it is not all bad. It is a nice core and bobbin. Assuming the core is actual iron. ;)
Judging by the way the bobbin itself is designed, I believe the supplier has an actual production line of fake chokes. The ridge used to hold the wire in place makes the bobbin useless for a transformer/choke without modification.
What do you guys think, a potential baby MOT? What gauge/wire ratios would you recommend? Maybe i'll make a baby SGTC out of it?
It's more likely to be an error of an automatic wiring machine, or provision for a mk2 version for sale only in some countries.
Registered Member #151
Joined: Sun Feb 12 2006, 02:53PM
Location: Poland
Posts: 153
I think it's just a fake PFC. Passive PFC inductors has "a lot of expensive copper" inside so it's really good component for faking by chinese manufacturers to save some money
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Haha, fake choke!?
