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Its an old HP box I was going to use to play with linux. WTH is that leaded dual-diode-kludge?! I suppose it is possible that a choke will help filter out the harmonics, but I can’t see it correcting the crest surge by much for a 50hz choke of reasonable size.
The outer shell kind of gave it away, but this, probably for the th time, reinforces the fact that Fujjy’s are far too unreliable to be recommended. Anyway got a cheapie coming to replace it, so it will be a project just to know why it died.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum. My searches on the net have proved fruitless Yantz not to say info isn’t out there I just haven’t found it.
It has very very high surge capacity, so if you connect a battery bank up in the wrong polarity, nothing happens to the psu, but the external wiring dna11001d spit sparks.
DNAD Datasheet, PDF – Qdatasheet
Here was my PM on this topic to Starfury: These two ICs are Delta proprietary parts. Our mains power here can be at times brutal, its killed a tv or two here. What’re the maximum output ratings on that one?
The one on the secondary side contains an error amplifier, opto driver and a bunch of comparators with a reference for fault detection. I would have that that even if shutdown protection circuits were firing to protect it, it should give some glimmer of life Haven’t tried it, but worth a go.
Re the Touch SP, that is a flyback design, where the “output inductor” is the primary of the transformer. I think you will get better results with winding a bigger core Yeah nice of them to put a line filter IEC connector for mains in.
I have found the USB cable. Unfortunately, I don’t have specs or pin-outs. The Newtons they used sometimes later on weren’t bad either though. My suggestion would be to send an e-mail to Delta’s Sales and Support office, either in the UK or the US which can be found on this webpage. Really must pull the Enermax and check it The smaller of the two transformers provides base or gate drive; no obvious drive transistors, so the internal drive of the PWM is used for that function, which means the base drive is kind of wimpy.
Bolty Regular Member Joined: Those little ferrite rod inductors are just for high frequency spike suppression. Don’t know the brand off hand, but sure someone does here Looks like I yank this one none too soon. Looks like a bigger version of the w ones Astec built for Gateway midtowers late socket 7 and slot 1.
As can be imagined, this can’t be overcome from adding caps or inductors on the input. The one on the primary side ? Firstly for the non-believers, here is the fiendish desoldering tool and some freshly released bits.
Unapproved X- and Y-caps, really skimpy heatsinks, rather small main transformer, primary and secondary wires bundled together using the fan wires, without reinforced insulation. They were pretty bulletproof for me – full of Chemicons mainly.
That box now has the Gigabyte MB in it that I recapped. JPG I’m not sure what brand these caps are, they seem to have some kind of company symbol, but that’s it http: If the controller bd. Japlytic has posted some info on pinout part schematic of the other chip DNA in the orginal post from “larrymoencurly” Delta proprietary chips? Janne Senior Member Joined: Probably uses clones of Motorola’s MJE or MJE bipolar transistors, with no DC-blocking cap to keep the transformer core from walking into saturation due to slight pulse width variations.
Sorry Janne, this thread has life of it’s own from the looks of it. Same deal as willawake’s post on GB MB zx7 or something. As to the Caps they all appear to be the same except possibly for those 2 blue electro’s mid section.
【DNA1001D HITACHI】Electronic Components In Stock Suppliers in 2018【Price】【Datasheet PDF】USA
Just with that Delta from a quick look today I am suspecting it may be a Mains side problem. Variable input voltage bat charger. Dinges Senior Member Joined: Ask them to e-mail you a pin-out diagram and a block diagram of the dwtasheet ICs Page 9 of Dztasheet do y’all think about the Astec unit? No worries Yanz Found info via google which lead me back here to PeteS reply posted awhile back kc8adu mentioned hitachi thanks and that was the only other thing that kept falling out but no pdf’s or docs could I find: Show 40 post s from this thread on one page.
I see two TO rectifiers and that kludge