Thursday, November 7th 2024
TechPowerUp is Hiring a Power Supply (PSU) Reviewer
TPU is looking to hire a PC enthusiast or professional to review PC power supplies (PSUs) part-time. Our current reviewer suvirintojas put out some great work with us since 2023, but has changes in his life that require his attention. We thank him for the wonderful work and hope we find a replacement of equal caliber. TechPowerUp PSU reviews tend to be highly technical, as we dive into the finer aspects of the PSU's switching performance, and quality of electrical output across various voltage domains. We also focus on noise levels and efficiency.
The PSU industry is in a state of transition toward newer standards such as ATX 3.1, PCIe Gen 5 CEM, and perhaps even ATX12VO, which means we'll never run out of new PSUs to review for at least the next few years. This is where you step in—we are looking for a PSU reviewer with fairly high availability for a significant output of reviews. We can help arrange as many PSU samples as you can handle.
E-mail your resume to w1zzard@techpowerup.com along with a cover letter on why you think you're the ideal candidate for this position. Please include some basic details about yourself and where you're from. Optionally, you may provide examples of your work in any content medium (text, YouTube, etc.). It's okay if you're not a PSU reviewer, and think you have what it takes to become one.
The PSU industry is in a state of transition toward newer standards such as ATX 3.1, PCIe Gen 5 CEM, and perhaps even ATX12VO, which means we'll never run out of new PSUs to review for at least the next few years. This is where you step in—we are looking for a PSU reviewer with fairly high availability for a significant output of reviews. We can help arrange as many PSU samples as you can handle.
- The position is paid, part-time, remote, meaning you'll work from your own testing setup
- This means you need some space for equipment to conduct the testing and photography
- We don't have an exact number in mind, but we're looking for several reviews each month, ideally one a week, more if you can. Please only apply if you think you'll have enough time to achieve this throughput eventually (once you've got a routine figured out)
- While you may already have some contacts with PSU manufacturers, we're happy to connect you with them to ensure a steady supply of review units
- If you have our own testing equipment, that's great, but we can also provide gear for you
- For an idea of our testing process, you can check out our recent PSU reviews. This review structure is not rigid—your feedback is always welcome, and we'll work to onboard you with our in-house content management system
- You must have a decent understanding of a power supply and its internals, you don't have to be able to design one yourself
- We don't expect literary works from you, but you must be able to write decent English. Additionally, you should have basic image editing skills to process your photos
- For shipping logistics, we strongly prefer candidates located in the EU, UK, US, CA, TW, CN and JP (in no particular order). However, if you believe you are exceptional, feel free to make your case. We may consider waiving this requirement for the right candidate
E-mail your resume to w1zzard@techpowerup.com along with a cover letter on why you think you're the ideal candidate for this position. Please include some basic details about yourself and where you're from. Optionally, you may provide examples of your work in any content medium (text, YouTube, etc.). It's okay if you're not a PSU reviewer, and think you have what it takes to become one.
113 Comments on TechPowerUp is Hiring a Power Supply (PSU) Reviewer
A hot bridge rectifier has higher efficiency.
You are definitely unable to catch - even simple semiconductor like a diode is not acting just like pure ideal model. It is still complex device for modeling.
And you are totally focused on one aspect of this one device,
So even your changed sentence has very limited validity.
And definitely diode efficiency is way lower than modern mosfet efficiency. But for sure mosfet needs to be driven so it implies additional costs of course.
But we are living in 21 century now so we have a choice - for what solution we want paying.
If efficiency is our concern so solution based just in diodes is like a car on wooden wheels.
But you dont understand diode is intrisically inefficient against modern power mosfet. So it doesnt matter at all if high temperature help a bit or not.
And keep in mind in general case load is not constant so in some cycles when diode rectifying very short spikes or nothing at all reverse loss will be dominat and higher for hot diode than for colder one.
So your generalization is intrisically wrong.
You should provide complex simulation to declare valid conclusions for limited range of cases.
Generalization like yours even after changes is blatantly wrong.
Keep in mind diode can rectifying very short spikes and be reversed most of the rest of the cycle. It is especially valid in synchronous rectification when mosfet bypassing most of the forward pulse. In such setup diode working acively very shortly at both ends of the forward pulse. But dissipating energy by all time of reverse pulse. In such setup reverse loss could be dominant for very high temperatures. So hotter definitely doesnt mean better or more efficient in such case.
(Stating the obvious here) I find that if you set the fan to a lower RPM, and the desirable RPM may be different for different people because the audible frequency of the fan varies and some people are more sensitive to certain frequencies than others, that fan will run longer at a lower RPM. Whereas, Zero RPM fan mode will wait until there is so much heat to dissipate, the fan kicks on at 400W and the air coming out of the back can be used to melt heatshrink tubing.
BTW: Someone on Discord posted this and I LOL'd:
Of course, eventually that fan WILL have to turn on even at <400W load. But I still find it funny.
Or maybe both ideas combined as with the SilverStone Nightjar? I would hate potted as I like to replace components.
Anyhow, it is really great to have you so active on this forum.I can't speak for others, but it is the variation that drives me nuts. I replaced a CPU heatsink with one that ran at the same temperature but had a copper slug and that eliminated the constant speed hunting.
I also wonder about the baffle next to many power supply fans and how this affects both flow rate and noise (yes, I know why the baffle is there).Maybe go back to 80mm?
Actually, I'm overthinking it - they don't have to be rear/side vented like they were 20 years ago - the vents could still probably be on the top of the PSU towards the back - in a location where case manufacturers have made venting holes.
Only very few extended size PSU graded lower than Platinium are worth of closer inspection imho. So more than review - detailed comparisions would be much more helpfull for buyers.
Most mainstream laptop chargers are type c and are PD capable these days, they support granular voltage steps at very high loads, does output voltage differences make some drastic changes using modern designs? No... You have to thank Qualcomm and other makers investing to quit the shitshow intel does, that's pretty much it.
If you look into high power bricks, like Delta does, they are usually bleeding edge designs unlike PSU's, more space, more budget to cheap out, there are flops, there is no denying about that, but I cannot share the details.
I am completely with Johnny about PSUs being passive, that's masochism, best of any worlds is hybrid, that ramps up still after a time, like 20 minutes to cool heat buildups from caps, not completely passive rule binded by current consumption, that's crazy, I have never understood how the hell it is allowed.
But all devices have their life span and is influenced by temps. I will not submerge into ripple surpression working hours, why that is chosen in that place at that temperature, that is a question for designers, me as RMA guy seeing all those failed designs, I can only question, wtf dude, were you a student?
"The position is paid, part-time, remote, meaning you'll work from your own testing setup"
@W1zzard
which might it be? full-time or part-time
www.techpowerup.com/review/corsair-hxi-series-1500-w/4.html