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Yes; The function of the two thermistors is to sample the temperature of the heating pot on the induction cooker, and convert the sampled temperature into a voltage signal to the m...

Induction cooker with two thermistors on the plate?

Yes; The function of the two thermistors is to sample the temperature of the heating pot on the induction cooker, and convert the sampled temperature into a voltage signal to the main control chip of the induction cooker, mainly to prevent the dry burning of the pot in the unmanned state;

Another thermistor is to sample the surface temperature of the insulated gate transistor (IGBT), and the sampled temperature is converted into a voltage signal, which is also sent to the main control chip of the induction cooker to prevent the insulated gate transistor (IGBT) from thermal breakdown due to poor heat dissipation.


Induction cookers have two temperature sensors (thermistors), the shape of ordinary diodes, one installed in the center of the stove plate, the other installed in the IGBT power tube. The resistance value of thermistor at room temperature is about 100k, and the resistance value of heating with electric iron becomes smaller.

So the linear region is good in the range of 100 to 20k ohm.