Re: Passive PFC - The HongKongFlyApart way
already been done:
https://www.badcaps.net/forum/showthread.php?t=6341
the echo star 480w of doom.
https://www.badcaps.net/forum/showthread.php?t=6341
the echo star 480w of doom.
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Re: Passive PFC - The HongKongFlyApart way
I'll keep using this.
It is funny to see a brand name that is that close to "Obama," especially on something crappy with fake components.Comment
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Re: Passive PFC - The HongKongFlyApart way
Yes. Unfortunately, they forgot to add fake input filtering
I love putting bad caps and flat batteries in fire and watching them explode!!
No wonder it doesn't work! You installed the jumper wires backwards
Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium
Office PC: HP ProLiant ML150 G3, 2x Xeon E5335 2GHz, 4GB DDR2 RAM, 120GB Intel 530 SSD, 2x 250GB HDD, 2x 450GB 15K SAS HDD in RAID 1, 1x 2TB HDD, nVidia 8400GS, Delta DPS-650BB 650W PSU, Windows 7 ProComment
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Re: Passive PFC - The HongKongFlyApart way
The solution? Stop making EVERYTHING in China!!! Oh wait, that would mean people pay higher prices, we can't deprive them of their cheap tat!Comment
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Re: Passive PFC - The HongKongFlyApart way
Nah, just encase a small power strip, and 3 little "wall warts" in it, 12v, 5v, 3,3v, in an ATX PSU case...Comment
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Re: Passive PFC - The HongKongFlyApart way
WTF, how did I miss this thread?!?! It's pure brilliance !
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Re: Passive PFC - The HongKongFlyApart way
What about good ol' transformer with some added circuitry? That would be heavy enough
Less jewellery, more gold into electrotech industry!
Half of the computer problems is caused by bad contacts 
Exclusive caps, meters and more!Hardware Insights - power supply reviews and more!Comment
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Re: Passive PFC - The HongKongFlyApart way
This one (in the red circle) is really likely the same thing.
This cheap PSU from my country is said to be just 15$ for 550w
(Sorry for piss-poop-poor image quality, I just had a quick edit to avoid the copyright issues.)Attached FilesComment
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Hello.
I ordered two NCP303150 for Lenovo 15 for GPU power phases. When i installed it it not work and i see that they have markings DUMMY on it. it is really dummy/fake/ ? ordered from SUHMS... -
Hi All,
I'm looking at upgrading my load resistors for power amplifier diagnostics and have a few questions:
1. is it possible to use e.g. a kettle element as a load?
and at the other end of the financial spectrum..
2. Electronic loads - would they work?
3. What's the gold standard method?
Many thanks. -
Hi
I am busy repairing a Garmin Echo 101 device that has a blown IC.
The only information on the IC is IV7DF. (See attached foto)
I am not able to find this component or any replacement.
Are you perhaps able to assist me to identify the component or a possible replacement?
Regards
Spidey... -
So I want to swap another PSU into this unique case that has had the original guts fail. The PSU case was designed for a PPFC coil, so I'd like to incorporate it into the drop in.
So I really can't remember. Can't you just drop in the PPFC coil? Most PCBs are labeled for them but I really can't remember. There isn't any circuitry that needs to be added? The one in question has a polypropylene capacitor attached to it:
Would I just install this where the circled jumper is?
How much does the coil improve the PFC %, realistically?... -
I'm planning to remove and bypass the passive PFC transformer/coil on an ATX power supply.
I don't care about reduced efficiency. I'm worried, howewer, about any problem in terms of increased ripple in the primary rail.
Does the removal of the passive PFC has negligible downsides in terms of increased ripple?
Thank you.
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