Abstract:
A refrigerator includes a compressor, a cold storage medium, a power supply to convert AC power supplied from an outside of the refrigerator, and to receive DC power during interruption of electric power, and a controller to perform a control operation to supply a cooling capacity to an interior of the refrigerator by driving the compressor based on the supplied AC power when no interruption of electric power occurs, and to perform a control operation to supply a cooling capacity to the interior of the refrigerator based on the supplied DC power and the cold storage medium during the interruption of electric power. Accordingly, consumption of electric power during interruption of electric power is reduced.
Abstract:
Provided is a sensorless BLDC motor apparatus for providing a drive current allowing the rotor of the BLDC motor to be aligned in a predetermined direction during an initial position setting section (or for a first period of time), and providing a drive current allowing a frequency thereof to be varied at predetermined time intervals so as to accelerate the rotational speed of the BLDC motor during an open loop section (or for a second period of time), and a method using the same.
Abstract:
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.
Abstract:
A linear compressor includes a cylinder, a piston, a linear motor configured to drive the piston, a current detection unit configured to sense a current in the linear motor, a relay configured to change an operation mode of the linear motor, and a control unit configured to set at least one parameter for determining a stroke of the piston according to the operation mode. The control unit is configured to: determine a first magnitude of a first current in the linear motor based on a state of the relay being in a first state, determine a second magnitude of a second current in the linear motor based on the relay being switched to a second state from the first state, compare the first magnitude to the second magnitude, and based on the comparison of the first magnitude to the second magnitude, determine whether the relay fails to operate.
Abstract:
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.
Abstract:
The present disclosure provides an inverter module capable of driving two linear compressors through three upper arm elements and three lower arm elements. To this end, an inverter module according to an embodiment may include an inverter module including a first inverter unit including a first upper arm and a first lower arm; a second inverter unit including a second upper arm, a second lower arm, a third upper arm and a third lower arm; and a controller configured to control the switching operation of the first upper arm and the first lower arm to allow the first inverter unit to drive a first compressor in a half-bridge configuration, and control the switching operation of the second upper arm, the second lower arm, the third upper arm and the third lower arm to allow the second inverter unit to drive a second compressor in a full-bridge configuration during a first operation mode, and control the switching operation of the first upper arm, the first lower arm, the second upper arm, the second lower arm, the third upper arm and the third lower arm to allow the first inverter unit and the second inverter unit to drive the first compressor and the second compressor in a full-bridge configuration during a second operation mode.
Abstract:
A home appliance includes a driver to drive a load, a power supply to convert AC power supplied from an outside of the home appliance, and to receive DC power during interruption of electric power, and a controller (1) to perform a control operation to supply first electric power based on the supplied AC power to the load in accordance with a normal operation mode when no interruption of electric power occurs, (2) to perform a control operation to supply second electric power based on the supplied DC power to the load in accordance with the normal operation mode when no interruption of electric power occurs, and (3) to perform a control operation to supply third electric power based on the supplied DC power to the load in accordance with a power saving mode upon the interruption of electric power.
Abstract:
Provided is a refrigerator. A thermoelectric module is disposed on a top surface of an ice compartment defined in a refrigerator door to discharge hot air through a cap deco disposed on a top surface of the door so that efficient ice making in the ice compartment is realized independently from a refrigeration cycle.