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Search: Posts Made By: Travis
Forum: PC Power Supply Discussion 6 Days Ago
Replies: 56
Views: 1,150
Posted By Travis
Caps are connected parallel with the load, which...

Caps are connected parallel with the load, which means, if the caps have effective parasite resistance (caused by leakage current), it only add a tiny bit of load to the power supply.
Forum: PC Power Supply Discussion 1 Week Ago
Replies: 56
Views: 1,150
Posted By Travis
Caps affect ripple/noise and dynamic reponse...

Caps affect ripple/noise and dynamic reponse performance, but don't affect load regulation.
Some PSU designs have dedicated secondary caps for each rail (Antec HCP1000, Seasonic X/P series, some...
Forum: PC Power Supply Discussion 1 Week Ago
Replies: 2
Views: 234
Posted By Travis
Why did these 2 budget FSP units fail in Hardware.info roundup?

http://uk.hardware.info/reviews/5777/3/500-550-watt-power-supplies-review-40-models-tested-maximum-load

The maximum stable output of FSP500-60APN and FSP Hyper 500W is only 400W.
Forum: PC Power Supply Discussion 1 Week Ago
Replies: 13
Views: 389
Posted By Travis
Normal PSUs operate at peak efficiency at about...

Normal PSUs operate at peak efficiency at about 50% load. Some are at about 30-40% load. Fanless PSUs (and Military/Aerospace power modules) are often at peak efficiency at higher load or maximum...
Forum: PC Power Supply Discussion 12-18-2014
Replies: 15
Views: 755
Posted By Travis
In SR design a certain amount of dead time is...

In SR design a certain amount of dead time is usually necessary to prevent the FETs from cross-conduction. So in theory an SBR in parallel with the body-diode of freewheeling FET helps efficiency....
Forum: PC Power Supply Discussion 12-18-2014
Replies: 15
Views: 755
Posted By Travis
Or the opposite way, SBRs for rectification and...

Or the opposite way, SBRs for rectification and FETs for freewheeling. For example, CoolerMaster Real Power Pro 1000W. This is "true semi-SR" too.
Forum: PC Power Supply Discussion 12-16-2014
Replies: 15
Views: 755
Posted By Travis
In a SR circuit there's a Dead Time in every...

In a SR circuit there's a Dead Time in every cycle when neither of the SR-MOSFETs conduct. Normally the body-diode of the MOSFET, which is slow and has a relatively high forward voltage, conducts. A...
Forum: PC Power Supply Discussion 12-15-2014
Replies: 15
Views: 755
Posted By Travis
Incorrect. These schottky diodes increase...

Incorrect. These schottky diodes increase efficiency.
Forum: PC Power Supply Discussion 11-13-2014
Replies: 10
Views: 1,105
Posted By Travis
All PC PSUs I've seen have their PFC controller...

All PC PSUs I've seen have their PFC controller chip on the primary side.
Forum: PC Power Supply Discussion 11-02-2014
Replies: 32
Views: 2,036
Posted By Travis
Secondary side uses independent regulation. +12V...

Secondary side uses independent regulation. +12V is generated from the main converter. +5V and +3.3V are each generated by 2 mag-amp circuits.
Forum: PC Power Supply Discussion 10-23-2014
Replies: 30
Views: 819
Posted By Travis
3 12V's and 5 grounds in total. All PSU makers...

3 12V's and 5 grounds in total. All PSU makers make it this way. 8pin PEG has 2 extra grounds only to "tell" the video card "the PSU is powerful enough". Although rated at 75W in PCI-SIG specs, 6pin...
Forum: PC Power Supply Discussion 10-23-2014
Replies: 30
Views: 819
Posted By Travis
First, I believe the SG-850's PEG modular cable...

First, I believe the SG-850's PEG modular cable is compatible with Antec's TPN series, TPQ series and EA-750 Green's PEG modular cable. So if GI_Joe can find any cable it should work.
To be...
Forum: PC Power Supply Discussion 10-23-2014
Replies: 30
Views: 819
Posted By Travis
You can see that directly in the picture. Three...

You can see that directly in the picture. Three YELLOW wires (with green stripes, probably) are +12V and three BLACK wires are COM (ground). On the video card's end the 8pin (or 6+2 pin) connector...
Forum: PC Power Supply Discussion 10-21-2014
Replies: 30
Views: 819
Posted By Travis
Is it compatible with TPN/TPQ modular cables?

Is it compatible with TPN/TPQ modular cables?
Forum: PC Power Supply Discussion 10-02-2014
Replies: 4
Views: 450
Posted By Travis
The 5VSB switcher is located next to the 5VSB...

The 5VSB switcher is located next to the 5VSB transformer. The PWM control might be integrated into the CU6808.
Forum: PC Power Supply Discussion 09-16-2014
Replies: 42
Views: 2,745
Posted By Travis
Through out the lifetime of this specific model,...

Through out the lifetime of this specific model, we don't have an idea what it is and how it performs.
Forum: PC Power Supply Discussion 09-15-2014
Replies: 42
Views: 2,745
Posted By Travis
HX1050 Gold can be purchased in China until...

HX1050 Gold can be purchased in China until recently.

edit: It's still available in online shops.
Forum: PC Power Supply Discussion 09-14-2014
Replies: 42
Views: 2,745
Posted By Travis
I think that model will be discontinued.

I think that model will be discontinued.
Forum: PC Power Supply Discussion 09-13-2014
Replies: 42
Views: 2,745
Posted By Travis
We still don't have a HX1050 Gold review out...

We still don't have a HX1050 Gold review out there to compare against.
Forum: PC Power Supply Discussion 08-22-2014
Replies: 88
Views: 6,126
Posted By Travis
I think a fan speed measurement at temperature...

I think a fan speed measurement at temperature slightly higher than room temperature (such as 30 or 35 degrees Celsius) would be more useful. The room temperature varies in different location and...
Forum: PC Power Supply Discussion 08-22-2014
Replies: 63
Views: 3,543
Posted By Travis
So OCZ paid CWT for the blueprints and Sirfa for...

So OCZ paid CWT for the blueprints and Sirfa for the assembling work?
Forum: PC Power Supply Discussion 08-22-2014
Replies: 39
Views: 3,108
Posted By Travis
It's actually a semi-bridgeless topology. During...

It's actually a semi-bridgeless topology. During every half-cycle of AC input, only one boost diode conducts. The conventional bridge rectifier design has two diodes in series conduct at the same...
Forum: PC Power Supply Discussion 08-22-2014
Replies: 2
Views: 488
Posted By Travis
The previous generation (aka "XM") has looser...

The previous generation (aka "XM") has looser voltage regulation than its 80Plus Platinum cousin (aka "XP"). This time you pay less money for XM2, but get the same level of tight voltage regulation...
Forum: PC Power Supply Discussion 08-22-2014
Replies: 5
Views: 435
Posted By Travis
Well I LOVE those boring units since their...

Well I LOVE those boring units since their performance is so predictable.
Forum: PC Power Supply Discussion 08-22-2014
Replies: 16
Views: 1,585
Posted By Travis
This sample is likely a hand-made sample, not a...

This sample is likely a hand-made sample, not a mass-production one.
Showing results 1 to 25 of 500

 
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