Abstract: The present application relates to a polycarbonate including a unit represented by Chemical Formula 1, a composition including the same and a molded article prepared from the composition.

Abstract: The present application relates to a polycarbonate including units represented by Chemical Formula 1a or 1b and Chemical Formula 1c, a composition including the same, and a molded article prepared from the composition.

Abstract: The present application relates to a polycarbonate including a unit represented by Chemical Formula 1a; and a unit represented by Chemical Formula 1b, a composition including the same and a molded article prepared from the composition.

Abstract: A cleaner, according to one embodiment of the present invention, comprises: a cleaner main body comprising a suction motor, a dustbin and a battery; a suction nozzle having formed thereon an opening part for suctioning in external air; and an extension tube for connecting the cleaner main body and the suction nozzle. The suction nozzle comprises: a housing forming the exterior and the opening part of the suction nozzle; a rotational cleaning unit accommodated in the housing and cleaning a surface being cleaned by means of a rotational operation; a motor inserted in one side of the rotational cleaning unit so as to rotate same; a suction nozzle battery for supplying power for driving the motor; and a wireless power receiving unit connected to the suction nozzle battery so as to provide same with power supplied by an external wireless power transmission unit.

Abstract: A dispenser includes: a tank; an inlet pipe connected to the tank and to supply liquid to the tank; a heater for heating liquid in the tank; an inverter printed circuit board for controlling the operation of the heater; a heat sink formed of a metal or other heat conductive material, and having a cavity; and a power semiconductor element electrically connected to the inverter printed circuit board to control power to the heater, and fixed to the heat sink to heat-exchange with liquid flowing in the cavity. The cavity of the heat sink may receive a section of the inlet pipe or may form a flow path to receive the fluid from the inlet pipe.

Abstract: A laundry treatment device according to an aspect of the present invention comprises: a body which receives laundry therein and has an inlet through which the laundry is introduced; a door connected to the body, and opening or closing the inlet; a control panel provided on the door to receive, from a user, an input of an operation signal for treating the laundry; a power transmitter provided on the body to transmit wireless power; and a power receiver provided on the door to receive the wireless power and transmit same to the control panel.

Abstract: According to an aspect of the present disclosure, a refrigerator may include a body having an open front; a refrigerator door configured to shield the open front of the body; an ice storage provided on the refrigerator door to store ice; an ice-making chamber provided in the body to produce the ice; an ice maker disposed in the ice-making chamber to transfer the produced ice to the ice storage; a power receiver provided to the ice maker to receive wireless power; and a power transmitter disposed on one side of one of the body and the ice-making chamber to transmit wireless power to the power receiver.

Abstract: An electric kettle having a handle coupled to one end of a body is proposed. The electric kettle includes: a body receiving water or food therein; a lid configured to shield an open upper side of the body; a base provided at a lower side of the body and configured to support the body; a spout provided on an upper end of the body and guiding a discharge of the water or food contained inside the body; and a handle fastened to the upper end of the body and configured to be held by hand. According to the configuration of the electric kettle, there are advantages of providing a compact and aesthetic appearance and improving assemblability.

Abstract: An electric kettle may include: a body receiving water or food therein; a lid configured to shield an open upper side of the body; a base provided at a lower side of the body and configured to support the body; a heating module provided in a side of the body and configured to apply heat to the body such that the content contained in the body is heated; and a handle provided at a side of the body and configured to be held by hand, wherein a control means is provided in the handle, the control means being configured to control power supplied to the heating module or to control a temperature of the content contained in the body. According to such a configuration of the electric kettle, there is an advantage in that the malfunction or failure of the electric kettle is prevented.

Abstract: A laundry processing apparatus according to an embodiment of the present disclosure includes a drum rotatably disposed in a main body, a drive motor configured to provide rotational power to the drum, a lifter mounted on an inner circumferential surface of the drum, a dryness level sensing device provided in the lifter, a wireless power receiver electrically connected to the dryness level sensing device and provided in the lifter, a wireless power transmitter disposed between the main body and the drum to correspond to the wireless power receiver, and a controller configured to receive a sensing result from the dryness level sensing device and calculate a dryness level based on the received sensing result.

Abstract: A dispenser includes: a tank; an inlet pipe connected to the tank and to supply liquid to the tank; a heater for heating liquid in the tank; an inverter printed circuit board for controlling the operation of the heater; a heat sink formed of a metal or other heat conductive material, and having a cavity; and a power semiconductor element electrically connected to the inverter printed circuit board to control power to the heater, and fixed to the heat sink to heat-exchange with liquid flowing in the cavity. The cavity of the heat sink may receive a section of the inlet pipe or may form a flow path to receive the fluid from the inlet pipe.

Abstract: A home appliance is disclosed, including a motor, a drive unit configured to drive the motor, a first circuit unit including a main controller configured to control the drive unit, a display unit, and a second circuit unit including a display controller configured to control the display unit. The first circuit unit transmits wireless power to the second circuit unit, using a first frequency, and the second circuit unit transmits data to the first circuit unit, using a second frequency different from the first frequency. Thereby, wireless power transmission and bidirectional communication are performed between the first and second circuit units.

Abstract: Provided is a battery discharge control system including a voltage sensor configured to sense a voltage across a battery and a controller configured to calculate an expected voltage based on a recovery voltage of the battery and the voltage across the battery, compare the expected voltage and a predetermined final discharge voltage, and determine whether to apply power to a load having the battery as a power source.

Abstract: Disclosed herein are a motor driving apparatus and a home appliance including the same. The motor driving apparatus includes a direct current (DC) link capacitor, an inverter, a DC link voltage detector, and a controller. The controller controls rheostatic braking to be performed in order to stop the motor, performs bootstrap operation of gate terminals of the upper arm switching elements of the inverter during a first period for starting the motor, and determines whether the motor stops during the first period based on the DC voltage detected by the DC link voltage detector or the output current detected by the output current detector. Accordingly, it is possible to conveniently determine whether the motor stops in the sensorless type motor driving apparatus.

Abstract: Disclosed herein are a motor driving apparatus and a home appliance including the same. The motor driving apparatus includes a direct current (DC) link capacitor, an inverter, a DC link voltage detector, and a controller. The controller controls rheostatic braking to be performed in order to stop the motor, performs bootstrap operation of gate terminals of the upper arm switching elements of the inverter during a first period for starting the motor, and determines whether the motor stops during the first period based on the DC voltage detected by the DC link voltage detector or the output current detected by the output current detector. Accordingly, it is possible to conveniently determine whether the motor stops in the sensorless type motor driving apparatus.

Abstract: A home appliance is disclosed, including a motor, a drive unit configured to drive the motor, a first circuit unit including a main controller configured to control the drive unit, a display unit, and a second circuit unit including a display controller configured to control the display unit. The first circuit unit transmits wireless power to the second circuit unit, using a first frequency, and the second circuit unit transmits data to the first circuit unit, using a second frequency different from the first frequency. Thereby, wireless power transmission and bidirectional communication are performed between the first and second circuit units.

Abstract: Provided is a battery discharge control system including a voltage sensor configured to sense a voltage across a battery and a controller configured to calculate an expected voltage based on a recovery voltage of the battery and the voltage across the battery, compare the expected voltage and a predetermined final discharge voltage, and determine whether to apply power to a load having the battery as a power source.

Abstract: A washing machine and a method for controlling the same are disclosed. The washing machine includes a rotating washing tub in which laundry is placed and a motor to rotate the washing tub. The method for controlling the same includes performing primary rotation of the motor, detecting a primary laundry amount on the basis of the primary rotation of the motor, supplying, if the detected laundry amount is equal to or greater than a predetermined laundry amount, a predetermined amount of water or water corresponding to a predetermined water level to the washing tub in such a manner that the laundry becomes wet, performing secondary rotation of the motor, and detecting a secondary laundry amount on the basis of the secondary rotation of the motor. Thus, the washing machine correctly detects the amount of laundry.