REFRIGERATOR AND METHOD FOR CONTROLLING THE SAME

원문 (중국어)

A refrigerator is provided. The refrigerator includes a storage compartment, an evaporator, a compressor, a first electrode arranged in the storage compartment, a second electrode arranged spaced apart from the first electrode in the storage compartment, a radio frequency (RF) power supply configured to apply an RF signal to the first electrode and the second electrode, a voltage control circuit configured to adjust an input voltage of the RF power supply, a frequency control circuit configured to generate a switching signal for turning the RF power supply on or off, a voltage-current detector configured to detect an output voltage between the first electrode and the second electrode and an output current of the first electrode, memory storing instructions, and at least one processor operatively couple to the compressor, the at least one voltage control circuit, the frequency control circuit, the voltage-current detector, and the memory, wherein the instructions, when executed by the at least one processor individually or collectively, cause the refrigerator to operate the compressor, identify an impedance change rate of food placed between the first electrode and the second electrode based on the output voltage and the output current, and adjust a reference voltage applied to the at least one voltage control circuit or an on-off duty ratio of the frequency control circuit, based on the impedance change rate of the food.