Lg Electronics Inc.

Buhwan Ahn

Jinseok Hu

Sangil Lee

Seonggu Shin

Namhun Kim

Shinhyun Park

Jaemin Kim

Kyelyong Kang

Gunil Park

A method controls a refrigerator. The refrigerator includes a compressor that includes a piston and uses refrigerant as lubricant for the piston, and the method includes determining an end time point of a refrigerant recovery operation based on a driving input value of the compressor to thereby reducer abrasion of the piston and power consumption.

Refrigerator with refrigerant recovery control

The present disclosure relates to a refrigerator and a control method thereof in one embodiment. The refrigerator in one embodiment may include a storage part including a compressor and an evaporator and configured to store a food item at a low temperature using air cooled by the evaporator, an ice making compartment configured to make or store ice using air cooled by the evaporator, and a fan for making ice allowing air cooled by the evaporator to flow to the ice making compartment, wherein a rotation speed of the fan for making ice changes while the fan for making ice continues to operate during operation of the compressor.

Refrigerator and control method thereof

A refrigerator may include a storage part including a compressor and an evaporator and configured to store a food item at a low temperature using air cooled by the evaporator. The refrigerator may also include an ice making compartment configured to make or store ice using air cooled by the evaporator, and a fan for making ice allowing air cooled by the evaporator to flow to the ice making compartment. Additionally, a rotation speed of the fan for making ice changes while the fan for making ice continues to operate during operation of the compressor.

A refrigerator includes a controller that is configured to perform operations including driving a refrigerator compartment compressor, determining whether a sensed temperature in the refrigerator compartment satisfies a first temperature, driving, based on the sensed temperature in the refrigerator compartment satisfying the first temperature, a freezer compartment compressor, stopping the refrigerator compartment compressor, maintaining, after stopping the refrigerator compartment compressor, operation of the freezer compartment compressor, restarting the refrigerator compartment compressor, and varying a driving frequency of the refrigerator compartment compressor.

Control method for refrigerator

A control method for a refrigerator includes driving a refrigerator compartment compressor that is configured to cool a refrigerator compartment; determining whether a temperature in the refrigerator compartment satisfies a first temperature; driving, based on the determination that a temperature in the refrigerator compartment satisfies the first temperature, a freezer compartment compressor that is configured to cool a freezer compartment; stopping the refrigerator compartment compressor; maintaining, after stopping the refrigerator compartment compressor, operation of the freezer compartment compressor; restarting the refrigerator compartment compressor; and varying a driving frequency of the refrigerator compartment compressor.

The disclosure relates to a refrigerator which includes a compressor capable of generating cooling capacity for executing at least one of a refrigerating operation and a freezing operation, a temperature sensor capable of sensing an internal temperature of the refrigerator, to which cold air is supplied, at a specific period, in response to at least one of the freezing operation and the refrigerating operation, and a controller capable of calculating a rate of change in the internal temperature using the sensed internal temperature, and controlling the cooling capacity of the compressor based on the calculated rate of change in the internal temperature.

Refrigerator having a controller for executing a load match operation, and a control method thereof

A switching mode power supply apparatus is provided. The switching mode power supply apparatus may include a switch unit configured to switch an input voltage to a transformer and a controller configured to select an operation mode having a switching frequency according to a size of a load applied to a secondary side of the transformer and control a switching operation of the switch unit. The switching mode power supply apparatus may include a transformer. A refrigerator having the switching mode power supply apparatus is also provided.

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Seoul, South Korea

Buhwan Ahn