If thats the case my heatsinks , at the backside, read 26-28c, so if i were to give them 10c that would be 38c? give or take a phew..if left to get to steady state backside of heatsink is pretty linear with Tc, though may be 2-10+C down depending on heatsink geometry and airflow
Yeah another reason why i would like to check to see if they are indeed using 0.700ma .. i have a feeling their using less due to the fact i only have 66v out of the 107v required for the driverthat seems low.
26C is room temperature and chips throw off some heat
Well, the easiest way to find that out is to put a multimeter in series and do a dc current measurement.Yeah another reason why i would like to check to see if they are indeed using 0.700ma .. i have a feeling their using less due to the fact i only have 66v out of the 107v required for the driver
which type of cob...rather which brand....Yeah another reason why i would like to check to see if they are indeed using 0.700ma .. i have a feeling their using less due to the fact i only have 66v out of the 107v required for the driver
That's what Bridgelux recommends in the datasheets. They also had some suggestions in one of the AN documents that were good as well, so take a look on their website.which type of cob...rather which brand....
crees use a j type because of the ceramic base i would guess and veros use a k type and probably anything else with a metal slug base...
a simple digital lcd thermocouple and reader are on ebay for $4 or so...get the fine tip and attach with kapton tape for temporary measurements or high temp silicone for a permanent attachment....