The principle of detecting pot without pot in induction cooker
The principle of the electromagnetic oven is actually a pot in the above transformer, plays a core role, when the electromagnetic oven work will produce eddy current in magnetic iron (do not know can go to see the high school physics book), eddy current in iron work produces heat. When you put the iron away from the electromagnetic oven, then the equivalent of your core transformer in pumping, the secondary coil energy fell sharply, it is through the internal circuit to detect a pot pot and no standby.
Induction cooker from two aspects to detect, there is no pot pot:Current transformer detector: when no pan, the line and vibration capacitance vibration time is long, the energy attenuation is slow, flow through T1 primary current less, T1 secondary voltage is low, CPU judge no pot. There is a pot, with appropriate materials with the addition of the pot, the shock damping between coil and resonant capacitor to increase energy attenuation of fast changes in the T1 primary current, secondary voltage in the induction, CPU determine pot.
