Saturday 24 December 2016

arduino - Maximum operating temperature of power supply


I am using a 12V (1A) SMPS power supply to power up a device that draws about 70mA when idle and up to 200mA when active (every 3 seconds).


The power supply is getting pretty hot (about 70°C) after 1 hour of operation. I own several of these power supplies and all if them seem to have the same issue. How can this be avoided? Is 70°C a safe temperature for the operation of the components on the power supply like the transformer, etc.?




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