LED street light failure
Date:2011-05-16 11:28
Status:Be resolved
Question:admin
.
How to measure the junction temperature
Junction temperature measurement appears to be a temperature problem, but to measure the junction temperature of the LEDs internal, we can not get into a PN junction thermometer or thermocouple to measure its temperature. Of course it can still shell temperature measurement using thermocouples, and then gives the thermal resistance Rjc (junction to case), it can calculate the junction temperature. However, after the radiator is installed, the problem h
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