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thermal management
All electronic devices and circuitry generate excess heat and thus require thermal management to improve reliability and prevent premature failure. The amount of heat output is equal to the power input, if there are no other energy interactions. There are several techniques for cooling including various styles of heat sinks, thermoelectric coolers, forced air systems and fans, heat pipes, and others. In cases of extreme low environmental temperatures, it may actually be necessary to heat the electronic components to achieve satisfactory operation.
A quick question purely out of curiosity .
When I pick up my grandkids from school, I park-up and sometimes turn the car OFF from the pulldown menu. After a few minutes there's a series of chunks, clicks, and whirring sounds from under the bonnet, and sounds of fluids being purged. This can go...
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