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
pianotuna wrote:
Hi landyacht,
Fans always work better when they are exhausting rather than blowing in.landyacht318 wrote:
Both Noctua fans blowing inward is not as effective as the previous setup of one 60mm blowing in and one 80MM sucking out.
YEAH!
Point the fan away from you, get real close to the back side and f-r-e-e-z-e
Just teasing you Don :)
The toroid inductors generate most of the heat in these gizmos but the P/N junction within the transistors is very sensitive to overheating. Silver-silver-silver heatsink compound is the way to go, not ceramic or zinc oxide base thermal paste. Slobber the entire back plate of the transistor, then slobber every last exposed part of the aluminum "heatsink" block to the case.
In-out fans are a good way to keep the electrolytic capacitors from getting gray hair too early in life. Their lifespan is heavily influenced by temperature.
If anyone out there doubts any of this, yank the case cover and start shooting various parts with an IR thermometer. The toroid inductors will come as a surprise.
Most early converter failures are "heat induced". Capacitors gone funky because of accumulated toroid and resistor heat. Because they are constructed laminations upon laminations, removing the source of the heat is what does the trick. They have a tough enough life without being broiled.
