Water level detection circuit, device and cooking appliance

Abstract

The application discloses a water level detection circuit, a device and a cooking utensil, and relates to the technical field of detection. The water level detection circuit comprises a power input end, an impedance unit, a probe and a controller. The controller is connected with the probe and the second end of the impedance unit respectively. The first end of the impedance unit is connected with the power input end. The probe is arranged in a detection cavity used for storing water. The power input end is used for connecting a power supply. After receiving a detection signal fed back by the probe, the controller adjusts the potential of the probe to the potential of the detection cavity. According to the embodiment, the control program in the controller can be adjusted on the basis of water level detection. After the water level detection circuit does not perform water level detection or the water level detection is completed, the current on the probe is eliminated, so that the corrosion of the probe is prevented, and the structure is simple and easy to implement.

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