Mean Well RSP-500-15 Switching Power Supply
IT just arrived. Initial impressions: Much heavier than the cheapowatt 1/2" wider, 1/2 inch longer and almost 1/2 inch less High than cheapowatt. The casing is about 50 to 75% thicker aluminum t...
Forum Discussion
I despise that Parakeet, that conyer, with the white hot intensity of a thousand suns.
I really wish it did not fill me with such useless rage and hate, but it is so freaking annoying. Any task I try to complete, one screech and my concentration is gone, replaced with contempt and rage and images of rusty flying garden tools at the despicable creature. I am likely suffering hearing damage as I wear my earplugs and play music loud enough that I can just barely hear the infuriating screech.
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Ahhh Sweet, 40 MM fans. I can imagine several, on a PWM speed controller, embedded in porcupine quills with shrouds directing all airflow over/through the finned heatsinks.
Much Appreciate the goodie package!
I could not find my old inverter case that I thought I would retask. I do have some Arctic Silver thermal adhesive en route, but am considering getting longer screws to pull additional heatsinks and transistors tight to casing without the adhesive, just thermal grease.
I don't expect to run this unit often at 40.92 amps, but when I do, I want it to run as cool as possible. MeanWell says they cycle the fan on and off to increase its lifespan, but I think the interior components increasing and decreasing temperature with the fan would reduce longevity of other components. Fans are much easier to replace, so I am not too keen on their on/off approach.
The fan implementation is the only thing which i do not find impressive about this machine, but considering there is no room for any bigger fan within the case, it seems they picked a high CFM ball bearing fan to use. I just wish it was variable speed, or they used two of them like they do on the 1000 or 2000 watt models.
I taped the temp sensor of my DMM onto the case half way through last nights test. I could watch temps increase tenth by tenth and then decrease as soon as the fan kicked on. About a 14 F range, taped to the exterior. I imagine the internals have a wider temp range. The IR temp gun is much less accurate on reflective surfaces.
I was really thinking about a 120MM fan in the steel lid. I've got a few of those floating around untasked, but none I am too impressed with. But they should be good to see how much airflow is needed to keep the stock 40mm fan from cycling on and off at that annoying 37DB high pitched whine. My favorite 120MM fan is the silverstone Fm121, it comes with a 10k pot to change CFM from 33 to 110 cfm and anywhere in between. I also have a 252 CFm 120MM fan, a Delta Screaming banshee fan. It only draws 3+ amps at 67 Db. It, could probably suck the resistors out of the circuit board.
Just looking for a way to task this ridiculously powerful 120MM fan. It did not respond well to my PWM motor speed controllers. It would just shut down at 3/4 speed. Still fast enough to chop off the tip of one's finger and launch it into orbit though.
I really wish it did not fill me with such useless rage and hate, but it is so freaking annoying. Any task I try to complete, one screech and my concentration is gone, replaced with contempt and rage and images of rusty flying garden tools at the despicable creature. I am likely suffering hearing damage as I wear my earplugs and play music loud enough that I can just barely hear the infuriating screech.
-----
Ahhh Sweet, 40 MM fans. I can imagine several, on a PWM speed controller, embedded in porcupine quills with shrouds directing all airflow over/through the finned heatsinks.
Much Appreciate the goodie package!
I could not find my old inverter case that I thought I would retask. I do have some Arctic Silver thermal adhesive en route, but am considering getting longer screws to pull additional heatsinks and transistors tight to casing without the adhesive, just thermal grease.
I don't expect to run this unit often at 40.92 amps, but when I do, I want it to run as cool as possible. MeanWell says they cycle the fan on and off to increase its lifespan, but I think the interior components increasing and decreasing temperature with the fan would reduce longevity of other components. Fans are much easier to replace, so I am not too keen on their on/off approach.
The fan implementation is the only thing which i do not find impressive about this machine, but considering there is no room for any bigger fan within the case, it seems they picked a high CFM ball bearing fan to use. I just wish it was variable speed, or they used two of them like they do on the 1000 or 2000 watt models.
I taped the temp sensor of my DMM onto the case half way through last nights test. I could watch temps increase tenth by tenth and then decrease as soon as the fan kicked on. About a 14 F range, taped to the exterior. I imagine the internals have a wider temp range. The IR temp gun is much less accurate on reflective surfaces.
I was really thinking about a 120MM fan in the steel lid. I've got a few of those floating around untasked, but none I am too impressed with. But they should be good to see how much airflow is needed to keep the stock 40mm fan from cycling on and off at that annoying 37DB high pitched whine. My favorite 120MM fan is the silverstone Fm121, it comes with a 10k pot to change CFM from 33 to 110 cfm and anywhere in between. I also have a 252 CFm 120MM fan, a Delta Screaming banshee fan. It only draws 3+ amps at 67 Db. It, could probably suck the resistors out of the circuit board.
Just looking for a way to task this ridiculously powerful 120MM fan. It did not respond well to my PWM motor speed controllers. It would just shut down at 3/4 speed. Still fast enough to chop off the tip of one's finger and launch it into orbit though.
