3.3.3 Temperature Sensing/Monitoring

Another parameter to monitor is temperature. If the load is heating up, it may be necessary to disable the power. This can be accomplished using an NTC thermistor as part of a voltage divider. The output of the voltage divider is a function of the NTC thermistor’s temperature. By obtaining the resistance versus temperature data from the manufacturer, a look-up table can be created for the microcontroller.

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