Re: ATX psu > lab-ish psu - need help with protections
That will surely help! Thanks a lot! But i would rather keep original short circuit protection but if i wont find out how ill probably make it from the tutorial
neclovek
Member
Last Activity: 01-16-2020, 05:05 AM
Joined: 12-29-2014
Location: PB
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Re: ATX psu > lab-ish psu - need help with protections
Okay, i know but it has 2 problems:
1.st - I dont think that anyone is going to be losing his time helping me with this (today i feel really pessimistic, sorry for that)
2.nd - The damn thing doesnt let me to post those friggin attachements and keeps failing with that internal server error. I tried photos, I tried ziping them, I tried uploaded smaler photos and always same error. So how the hell am i supposed to attach those photos when it doesnt work?
I am gonna try one more time and if its gonna...Last edited by neclovek; 01-19-2015, 02:12 PM.Leave a comment:
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Re: ATX psu > lab-ish psu - need help with protections
"[SIZE="5"][B]ERROR 500 - Internal Server Error![/B][/SIZE]
[B]The following eror occurred:[/B]
This requested URL caused an internal server error."
...Yeah, uploading photos to the attachments works flawlessly!Re: ATX psu > lab-ish psu - need help with protections
"[SIZE="5"][B]ERROR 500 - Internal Server Error![/B][/SIZE]
[B]The following eror occurred:[/B]
This requested URL caused an internal server error."
Leave a comment:
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Re: ATX psu > lab-ish psu - need help with protections
selldoor: Thanks for telling me. But is it really that much of a problem? I mean I dont have any problem with that, I just think that using imgur is better because images are loading at least 5 times faster and also they are easy to manage.
dmill89: I was thinking about using fuses too but I think that built in short circuit protection would be much better, I just need some help figuring out what is preventing the supply from starting when some rail is not present.Leave a comment:
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ATX psu > lab-ish psu - need help with protections
Hi, before i start i just want to
since unmodified ATX psu pretty much sucks as a lab supply, I decided to make it into one. Internet is full of "tutorials" how to do such thing but all of them are just useless bull**it because they only show you how to put a linear regulator or whatever into it. So i made one on my own by disconnecting pins 1 and 2 of TL494 and connecting them so pin 2 is around 1,5V (voltage divider from VREF on tl494) and pin 1 is connected to gnd with one resistor and to 12v with potentiometer. It works really great but i have one problem - protections. On... -
Re: PowerMac G5 psu not turning on
But i need to know it. I dont have proper tools to unsolder whole controller board so i cant just look. Is it electroyitic? Or smd?...Leave a comment:
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Re: PowerMac G5 psu not turning on
Nobody?Leave a comment:
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Re: PowerMac G5 psu not turning on
Oh, okay, now it makes sense, thanks. I was just expecting something like KA7500 or something like that. Well, I gues that I was expecting wrong
Now "only" thing left is to fix the damn thing...Leave a comment:
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Re: PowerMac G5 psu not turning on
[URL="http://imgur.com/a/CX7Tx#0"]HERE [/URL]is all the pornography, i mean photography...looks like pornography to me If you need more photos or photos of specific parts, i can do more.Re: PowerMac G5 psu not turning on
[URL="http://imgur.com/a/CX7Tx#0"]HERE [/URL]is all the pornography, i mean photography...looks like pornography to me If you need more photos or photos of specific parts, i can do more.Re: PowerMac G5 psu not turning on
[URL="http://imgur.com/a/CX7Tx#0"]HERE [/URL]isLast edited by neclovek; 01-01-2015, 11:06 AM.Leave a comment:
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Re: PowerMac G5 psu not turning on
Ill post some photos later - now i have too much of unexpected work...Leave a comment:
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PowerMac G5 psu not turning on
Hello, recently one friend borowed me a G5 psu which doesnt work.
Its a 1000W API4FS13. When i plug it in, 5Vsb and 25Vsb are present. When i connect PS-ON to ground, the relay clicks two times and nothing happens, no voltage on 3,3V, 5V, 12V pins.
Another thing is - I cant find PWM ic on the board. I looked at it for half an hour and couldnt find the damn little thing. Maybe i am just blind.
Anyway, i hope someone will help me fix that thnig. -
Re: New Members - please post your introductions here
Hi, i just found this forum with some really smart and willing members so i hope that someone will help me to fix a G5 psu.Leave a comment:
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