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
Yeah, 15 degree rise over ambient is best to remain clueless. I've got to congratulate you on defining what is happening with battery charging, though. You have gone way beyond where most folks would even think about going.
With fans and heatsinking, I've found that the most dissipation in heat occurs close to the pad of any semiconductor devices. I mean real close, centered on the pad real estate. You could have a differential of 20C->30C from the semiconductor to just an inch away on the heatsink. If you mount your thermal sensor too close to the semiconductor, you won't see a large temperature differential, no matter how you feed it or how you try to cool it.
If it was me, I'd aim for thermal measurement on the board where I could reasonably expect interior case temps to be accurate. That would give me an idea of how my cooling methods were effecting the rest.
It's great that you post back on the Forum with your results. We need experimenters and pioneers. Good luck!
With fans and heatsinking, I've found that the most dissipation in heat occurs close to the pad of any semiconductor devices. I mean real close, centered on the pad real estate. You could have a differential of 20C->30C from the semiconductor to just an inch away on the heatsink. If you mount your thermal sensor too close to the semiconductor, you won't see a large temperature differential, no matter how you feed it or how you try to cool it.
If it was me, I'd aim for thermal measurement on the board where I could reasonably expect interior case temps to be accurate. That would give me an idea of how my cooling methods were effecting the rest.
It's great that you post back on the Forum with your results. We need experimenters and pioneers. Good luck!
