importance of rice cooker thermistor

Rice cooker is an essential electrical appliance in life. With the development of technology, the application field of electronic components is broader, and the development prospect is good. What does induction cooker do? How does it work? How do technical people observe the resistance of the induction cooker?

The rice cooker thermistor is a temperature measuring element whose function is to measure temperature. Temperature control display and other are done by other circuits. The induction cooker thermistor plays a safety role. When the temperature reaches a certain value, the heating device is automatically turned off. In principle, when the induction cooker thermistor is connected to a single-chip microcomputer interface on an electromagnetic heating control board, the single-chip microcomputer judges by detecting a change in level (possibly high level or low level) and performs corresponding protective actions.

The induction cooker thermistor is very important. Without the induction cooker thermistor, the microcontroller will not boot. Put the pot on it, press the start button, and the induction cooker will keep ringing. Not heating, indicating that there is a problem with the induction cooker or the material of the cookware is incorrect. Should check the synchronization circuit inside the induction cooker, the surge protection circuit PMW modulation circuit and the current detection circuit. The induction cooker the induction cooker thermistor is 100K.

Observe whether the resistance of the induction cooker thermistor will decrease. When the resistance value can gradually decrease with the heating of the resistance, continue to heat and after the temperature drops to 0 ohms (or close to 0 ohms), remove the electric soldering iron to stop the heating. After removing the induction cooker thermistor, if there is no change in the level detected by the single-chip microcomputer at this time, normal heating can be performed. This situation is dangerous because it will not be over-temperature protected and will easily cause dry burning.

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