Understanding forced air cooling in power supplies
All power supplies generate waste heat which has to be dissipated. The heating effect becomes greater as more components are squeezed into smaller spaces. The result of miniaturization is higher levels of heat per cubic volume of space.
The heat generated by components not only passes into the air around the components but is absorbed by adjacent parts, by the PCB and by the equipment case. As a result, various parts of the system end up operating at higher temperatures than originally anticipated, which adversely affects the reliability and service life.
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Related Categories: Capacitors, Components, cooling, Power
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