Detection circuit, appliance and control method

A control method, comprising:

• obtaining a first alternating current (AC) signal of a first branch and a second AC signal of a second branch in a detection circuit,
• determining a first direction of the first AC signal and a second direction of the second AC signal, wherein the first branch comprises a first capacitive component and a load to be detected connected in series, and the first branch is connected in parallel with a second branch comprising a second capacitive component;
• determining a type of the load to be detected based on the first direction and the second direction;
• and
• controlling an appliance to be in a corresponding operating mode based on the type of load, wherein determining the type of the load to be detected based on the first direction and the second direction comprises:
• detecting whether an included angle between the first direction and the second direction is within a first preset range;
• and
• in a case where it is detected that the included angle between the first direction and the second direction is within the first preset range, determining that the type of the load to be detected is a power transmission load;
• and in a case where it is detected that the included angle between the first direction and the second direction is not within the first preset range, determining that the type of the load to be detected is a heating load.