Temperature Sensors
Walt Kester, James Bryant and Walt Jung
Temperature measurement is critical in many modern electronic devices, especially expensive laptop computers and other portable devices; their densely packed circuitry dissipates considerable power in the form of heat. Knowledge of system temperature can also be used to control battery charging, as well as to prevent damage to expensive microprocessors.
Compact high power portable equipment often has fan cooling to maintain junction temperatures at proper levels. In order to conserve battery life, the fan should only operate when necessary. Accurate control of the fan requires, in turn, knowledge of critical temperatures from an appropriate temperature sensor.
Accurate ...
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