jonnyGURU Forums
Home Site Search Reviews Articles Contest Links PSU FAQs  


Go Back   jonnyGURU Forums > Search Forums

Showing results 1 to 25 of 500
Search took 0.04 seconds.
Search: Posts Made By: Travis
Forum: PC Power Supply Discussion 04-15-2016
Replies: 14
Views: 1,405
Posted By Travis
Insects at the users' home. They're often seen in...

Insects at the users' home. They're often seen in southern China.
Forum: PC Power Supply Discussion 04-08-2016
Replies: 14
Views: 1,405
Posted By Travis
Foam covering the primary side is used to keep...

Foam covering the primary side is used to keep the insects away from high-voltage traces.
Forum: PC Power Supply Discussion 10-10-2015
Replies: 23
Views: 2,732
Posted By Travis
Someone at ATNG designed the platform for YueLin,...

Someone at ATNG designed the platform for YueLin, personally, I guess.
Forum: Testing Methodology Discussion 10-10-2015
Replies: 21
Views: 2,173
Posted By Travis
The voltage on the bulk capacitor has ripple at...

The voltage on the bulk capacitor has ripple at ~100Hz (2x the line freq). Since the DC/DC stage has a limited ripple suppression ratio at this frequency, part of that ripple may go through the...
Forum: PC Power Supply Discussion 04-28-2015
Replies: 8
Views: 1,208
Posted By Travis
Situation for Enermax PSUs just gets back to...

Situation for Enermax PSUs just gets back to several years ago. Enermax designs their own PSUs and buy the components. The OEM factory (CWT or Sirfa here) assembles the PSUs.
Forum: PC Power Supply Discussion 02-12-2015
Replies: 35
Views: 5,018
Posted By Travis
Don't forget the identical printing on the...

Don't forget the identical printing on the modular connector panel...
Forum: PC Power Supply Discussion 01-31-2015
Replies: 30
Views: 2,529
Posted By Travis
Andyson have a reputation for making a 80Plus...

Andyson have a reputation for making a 80Plus Bronze unit which is claimed to be 80Plus Gold.
Forum: PC Power Supply Discussion 01-31-2015
Replies: 30
Views: 2,529
Posted By Travis
And get screwed by the Andyson factory one more...

And get screwed by the Andyson factory one more time?
Forum: PC Power Supply Discussion 01-27-2015
Replies: 21
Views: 7,418
Posted By Travis
Yet another entry-level product besides S12-II...

Yet another entry-level product besides S12-II Bronze.
Forum: PC Power Supply Discussion 01-27-2015
Replies: 21
Views: 7,418
Posted By Travis
Since load on +3.3V rail is now part of the +12V...

Since load on +3.3V rail is now part of the +12V load...
Forum: PC Power Supply Discussion 01-20-2015
Replies: 56
Views: 3,892
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 01-18-2015
Replies: 56
Views: 3,892
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 01-17-2015
Replies: 2
Views: 648
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 01-17-2015
Replies: 13
Views: 1,488
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: 3,012
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: 3,012
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: 3,012
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: 3,012
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: 2,543
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: 6,067
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: 2,074
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: 2,074
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: 2,074
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: 2,074
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: 1,653
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.
Showing results 1 to 25 of 500

 
Forum Jump

All times are GMT -4. The time now is 02:45 AM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.