Lg Electronics Inc.

Jinhee Noh

Hyungho Park

Heewoong Park

Samchul Ha

Juhyoung Lee

Noma Park

Ji Eun Choi

Woohyun Paik

Dongryul Park

Hwanjong Choi

Seongman Jang

An air cleaning system can rapidly senses occurrence of local pollution, caused by fine dust, through a remote sensor hub and supplies purified air to a polluted area in a concentrated manner, thereby quickly purifying indoor air.

Air cleaning system

A heat pump including a boiler is disclosed. The heat pump may include a quick-hot-water-supply tank and the boiler, which may be operated selectively based on a temperature of external air or an electric power rate per unit heat quantity.

Heat pump

A motor control apparatus and method are provided. The motor control apparatus may include a power supply device supplying power to a motor, a power control device selectively blocking current supplied to the motor depending on whether or not the current supplied from the power supply device to the motor is greater than a reference current value, a controller that controls an intensity of the current supplied from the power supply device to the motor, and a load torque detector that detects a load torque generated by the motor as the motor rotates. The controller controls a maximum value of the current to be supplied to the motor so that the maximum value is less than the reference current value when the maximum value of the load torque detected by the load torque detector is greater than a maximum motor output due corresponding to the reference current value.

Motor control apparatus and method

Growing community of inventors

Changwon-si, South Korea

Jinhee Noh