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I had this issue when trying the same thing on a smaller Delta powersupply.

Use of this site constitutes acceptance of our User Agreement and Privacy Policy. Xatasheet was expecting a standard ic in the supply but its a dna and I’m having trouble finding a datasheet for it, has anyone had experience of one of these ic’s? Submit a new link. Media New media New comments Search media. Submit a new text post. The LM is an opamp, as you say. Any ideas on where it is or what I should be looking for?

I remember your last thread. Check whether there’s a TL nearby. Just saying hello Started by MichaelaJoy Yesterday at 6: Potentiometer Questions Started by norbss Yesterday at However I am struggling to identify where it is on the pcb. Different products have different specs – if you’re an engineer, keep discussions purely based on merit.

Depending on topology, it may be different. This chip is almost universally used in SMPS because a everybody else’s supply uses datassheet b it works so damn well; c it’s part of the example datasgeet on all SMPS power supply controller datasheets; d it’s so damn cheap.

Welcome to our site! You must log in or register to reply here. ECE subscribe unsubscribe 60, readers users here now Discuss anything related to the field of Electrical and Computer Engineering. To participate you need to register. I want to convert an atx power supply so that it has a single output, about 6v datsheet 18v and be controlled from a dc voltage power aupply for dataaheet ventilation fan.


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【1001DL HITACHI】Electronic Components In Stock Suppliers in 2018【Price】【Datasheet PDF】USA

If the problem is truly an engineering problem, we’ll allow it, but fixing your laptop or a cracked LCD screen doesn’t qualify. But what I need to know is where the PWM control chip is so I can try to disable the overcurrent protection on it. Discuss anything related to the field of Fatasheet and Computer Engineering. That’s what yer lookin’ for, right there.

And what section of the circuit needs to know this? Started by fastline Yesterday at 8: Want to add to the discussion? I labeled the 3 chips, however I have only been able to tell that the one in the middle is an op amp, the other two are perhaps marked with some dell proprietary nomenclature, I am not sure.

Pc power supply dna ic.

There is some feedback across the isolation through the 3 white optocouplers, so it datasheeet be that i am wrong, but i can’t tell you for sure. Log in or sign up in seconds. It was probably caught by reddit’s spam filters. If you have specific, targetted questions regarding homework, we will help you out only if you have provided some beginning work.

DL – ICS – IC Chips – Kynix Semiconductor

Then get out yer ohmmeter, put it on gabeepen tooter, and start buzzing. Forums New posts Search forums. Theres another device 10001dl there on the high voltage side I’ll look into what that chip is next.


I’m thinking that theres a feedback resistor divider and a reference voltage that I can tap into to adjust the output. Become a Redditor and subscribe to one of thousands of communities. I think I’ll pull another psu out of my stack of scrap bits and look at that one. Keep brand wars to a minimum. He explains the function of these chips, and provides some schematics.

Thread starter dr pepper Start date Aug daatasheet, You might be able to hook up a scope to some of the pins on those chips and see which one dtaasheet when you load it up to the point where overcurrent kicks in.

1001DL datasheet

I was trying to find the PWM Chip on any of them fatasheet I could attempt to disable it like this guy has done: Why, the pulse width modulator, of course! You should only need an amp or two extra, and those IC’s will output quite a bit more than rated in short bursts. For a better experience, please enable JavaScript in your browser before proceeding. Articles Top Articles Search resources.

SMPS use a TL to detect the output voltage and report back via an optocoupler whether the output voltage is too low or too high.

The thing I dont get right now is that the chip is on the low voltage side on the ferrite tranny. Here is the datasheet of the TL We won’t do your homework for you. 1001ld is an image datashedt the power supply