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Search: Posts Made By: Phaedrus2129
Forum: PC Power Supply Discussion 2 Weeks Ago
Replies: 9
Views: 348
Posted By Phaedrus2129
That's rise time / fall time for the PSU, not for...

That's rise time / fall time for the PSU, not for the AC input during hold-up time tests, which is what I was talking about.

The point of having "synthetic" scenarios is to have a consistent test...
Forum: PC Power Supply Discussion 2 Weeks Ago
Replies: 9
Views: 348
Posted By Phaedrus2129
My issue with that ATX requirement is the lack of...

My issue with that ATX requirement is the lack of any further testing criteria for it. For instance, when it comes to measuring ripple the standards state how to set up the probes, what bandwidth...
Forum: PC Power Supply Discussion 07-07-2013
Replies: 3
Views: 1,206
Posted By Phaedrus2129
I tested an HEC FlexATX recently. It performed...

I tested an HEC FlexATX recently. It performed fine, even under a high-heat torture test (I put tape over the fan intake and all vent holes). HEC does make a lot of low-end crap, but they can also...
Forum: PC Power Supply Discussion 07-06-2013
Replies: 184
Views: 455,616
Posted By Phaedrus2129
People in engineering and product management...

People in engineering and product management spend hours upon hours making sure that the customer has to do the minimum amount of thinking possible when using their product (because many customers...
Forum: PC Power Supply Discussion 06-18-2013
Replies: 24
Views: 3,226
Posted By Phaedrus2129
Oh, you have the 12Z? Then that's a totally...

Oh, you have the 12Z? Then that's a totally different PSU. I think they fixed the issue in that one, yeah.


Still, it's not worth much even with new caps. It's a mediocre low-end OEM unit. A few...
Forum: PC Power Supply Discussion 06-18-2013
Replies: 24
Views: 3,226
Posted By Phaedrus2129
Improved ripple & noise performance, and better...

Improved ripple & noise performance, and better hold-up times. And you'll have to worry less about a cap blowing in the future.

But the fact remains that this Bestec's +5VSB rail has a fatal...
Forum: PC Power Supply Discussion 06-18-2013
Replies: 9
Views: 1,160
Posted By Phaedrus2129
Kip's a great guy, but not a PSU expert. I'm glad...

Kip's a great guy, but not a PSU expert. I'm glad he got the footage though, that is interesting. I agree with bobnova, I think what's going on is that the PFC stage is doing synchronous...
Forum: PC Power Supply Discussion 06-18-2013
Replies: 5
Views: 945
Posted By Phaedrus2129
500mV is a problem if you want to use an RS232...

500mV is a problem if you want to use an RS232 port and your motherboard doesn't generate the signal voltages itself. In other words, if you're living in 1996. Hm... The Billboard #1 hit that year...
Forum: PC Power Supply Discussion 06-17-2013
Replies: 34
Views: 3,482
Posted By Phaedrus2129
Or something like that. :p

Or something like that. :p
Forum: PC Power Supply Discussion 06-17-2013
Replies: 34
Views: 3,482
Posted By Phaedrus2129
EVGA is not a US company, they're Taiwanese. They...

EVGA is not a US company, they're Taiwanese. They do sell mostly in the US though.
Forum: PC Power Supply Discussion 06-16-2013
Replies: 34
Views: 3,482
Posted By Phaedrus2129
Some people take a while to take advice.

Some people take a while to take advice.
Forum: PC Power Supply Discussion 06-14-2013
Replies: 5
Views: 637
Posted By Phaedrus2129
Maybe you could cobble together a linear power...

Maybe you could cobble together a linear power supply? Get a transformer, rectifier, caps, etc.


Or if you're really an EE guy, Intersil has a neat chip called the ISL8225M that is a very nice...
Forum: General Hardware 06-11-2013
Replies: 6
Views: 1,752
Posted By Phaedrus2129
I suggest paint.

I suggest paint.
Forum: PC Power Supply Discussion 03-24-2013
Replies: 38
Views: 3,671
Posted By Phaedrus2129
According to Westom a magical "whole house"...

According to Westom a magical "whole house" earthing line completely solves all surge issues. Perhaps because he works or consults for a company that sells them (probably not as an engineer...),...
Forum: PC Power Supply Discussion 03-24-2013
Replies: 38
Views: 3,671
Posted By Phaedrus2129
Yeah, I warned GS about Westom, he knows. ...

Yeah, I warned GS about Westom, he knows.

But I'm not an expert on surge protection, so I referred him here. I know we have some knowledgeable people.
Forum: PC Power Supply Discussion 02-05-2013
Replies: 18
Views: 1,553
Posted By Phaedrus2129
Yes, I fixed that a little bit later. The 4W was...

Yes, I fixed that a little bit later. The 4W was with them in series.
Forum: PC Power Supply Discussion 02-03-2013
Replies: 18
Views: 1,553
Posted By Phaedrus2129
Speaking of design, ...

Speaking of design,

http://fc01.deviantart.net/fs70/f/2013/031/9/1/buck_regulator_current_by_phaedrus2401-d5tdlmu.png

I've started picking up the basics of SMPS design. This was originally...
Forum: Electronic Component Discussion 01-18-2013
Replies: 2
Views: 1,211
Posted By Phaedrus2129
You can tell which by using a multimeter to...

You can tell which by using a multimeter to measure current through the pot. If it's a few amps, then it's the former. If it's in the mA region then it's a feedback loop.
Forum: PC Power Supply Discussion 01-02-2013
Replies: 17
Views: 1,832
Posted By Phaedrus2129
That's what I said... Effective, ain't it?

That's what I said...


Effective, ain't it?
Forum: PC Power Supply Discussion 01-02-2013
Replies: 17
Views: 1,832
Posted By Phaedrus2129
Coodmax. Because why the hell not?

Coodmax. Because why the hell not?
Forum: PC Power Supply Discussion 12-26-2012
Replies: 31
Views: 4,682
Posted By Phaedrus2129
I said "as reliable as you're likely to get"....

I said "as reliable as you're likely to get". They may have been lying; they didn't have much motivation to do so, but hey. Or it may have only been discussed and never put into production. I just...
Forum: PC Power Supply Discussion 12-14-2012
Replies: 23
Views: 1,617
Posted By Phaedrus2129
I personally ran a half dozen units of the final...

I personally ran a half dozen units of the final PVT revision at 100VAC input, two of them in the hotbox at 50C overnight, no issues. We'd had issues with low voltage input, that's why we tested it...
Forum: PC Power Supply Discussion 12-10-2012
Replies: 25
Views: 2,931
Posted By Phaedrus2129
A ball bearing fan isn't exactly cheap crap. It...

A ball bearing fan isn't exactly cheap crap. It may be a bit noisy, but it's not like it's a sleeve bearing.
Forum: PC Power Supply Discussion 12-10-2012
Replies: 25
Views: 2,931
Posted By Phaedrus2129
Glad someone noticed.

Glad someone noticed.
Forum: PC Power Supply Discussion 12-10-2012
Replies: 25
Views: 2,931
Posted By Phaedrus2129
Price will probably drop after the holidays; they...

Price will probably drop after the holidays; they won't drop the price during the Christmas frenzy. Of course, the actions of EVGA management are, as always, inscrutable.
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