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公开(公告)号：US20170047876A1
公开(公告)日：2017-02-16
申请号：US15232862
申请日：2016-08-10
发明人： Soongkeun LEE , Chungill LEE , Seonwook PARK , Sungwoo BAE , Jaejung YUN , Jeongtae KIM , Younggeun LEE
摘要： A motor driving apparatus included in a home appliance may include an inverter to convert a direct current (DC) power into an alternating current (AC) power through a switching operation and to output the converted AC power to a motor, an output current detector to detect an output current flowing through the motor, a controller to control the inverter, wherein, during a first interval after the motor stops, the controller controls a phase current of a predetermined frequency to flow through the motor to estimate a position of a rotor of the motor, and estimates the position of the rotor of the motor based on the detected output current while the phase current of the predetermined frequency flows through the motor. Thereby, the sensorless motor driving apparatus can easily estimate the position of the motor rotor.
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公开(公告)号：US20180054089A1
公开(公告)日：2018-02-22
申请号：US15800900
申请日：2017-11-01
发明人： Soongkeun LEE , Chungill LEE , Seonwook PARK , Sungwoo BAE , Jaejung YUN , Jeongtae KIM , Younggeun LEE
CPC分类号： H02J50/10 , G09G5/003 , G09G5/006 , G09G5/36 , G09G2330/02 , G09G2370/16 , H02J50/12 , H02J50/80 , H02P21/24 , H04W4/80
摘要： A home appliance is disclosed, including a first circuit unit including a converter configured to convert an Alternating Current (AC) power into a Direct Current (DC) power, a first coil, a first modulator/demodulator configured to wirelessly transmit the DC power generated by the converter using the first coil, and a first controller configured to control the first modulator/demodulator, and a second circuit including a second coil configured to receive a wireless power transmitted by the first circuit unit, a second modulator/demodulator configured to convert the wireless power received from the second coil, a rectifier configured to rectify an AC power generated by the second modulator/demodulator, and a second controller configured to control operation of the second modulator/demodulator, wherein the first modulator/demodulator and the second modulator/demodulator perform bidirectional time-division data communication.
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公开(公告)号：US20170214277A1
公开(公告)日：2017-07-27
申请号：US15381361
申请日：2016-12-16
申请人： LG ELECTRONICS INC.
发明人： Seonghun LEE , Byungsang JUNG , Hwanyong KIM , Seungje PARK , Sangdoo HA , Yongjun SON , Seonwook PARK , Jaesung YANG , Wonbok LEE , Gyoocheol CHOI , Joonggil JEONG
CPC分类号： H02J50/12 , F25D11/00 , F25D25/02 , F25D25/024 , F25D27/005 , F25D29/008 , F25D2325/022 , F25D2400/40 , F25D2700/02 , H01F27/2804 , H01F27/365 , H01F38/14
摘要： Disclosed is a refrigerator for uniformly illuminating an inner space thereof. The refrigerator includes a cabinet including a storage compartment having a predetermined size, a shelf installed in the storage compartment, the shelf including a light source unit for illuminating an inside of the storage compartment, a transmitter connected to an external power supply for wirelessly transmitting power, the transmitter having a primary resonance frequency within a predetermined range, and a receiver for wirelessly receiving the power from the transmitter so as to supply the power to the light source unit of the shelf, the transmitter transmitting the power to the receiver using a secondary resonance frequency generated when the receiver is located close to the transmitter.
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公开(公告)号：US20170279308A1
公开(公告)日：2017-09-28
申请号：US15460567
申请日：2017-03-16
申请人： LG ELECTRONICS INC.
发明人： Byungsang JUNG , Seonghun LEE , Hwanyong KIM , Seonwook PARK , Seungje PARK , Yongjun SON , Jaesung YANG , Gyoocheol CHOI
CPC分类号： H02J50/12 , H01F38/14 , H05B33/0809 , H05B33/0842 , H05B37/0272
摘要： A wireless power transmission system using multiple coils comprises a transmitter; and a receiver, wherein the transmitter includes a module for receiving a predetermined voltage, and a primary coil for generating a primary resonance frequency in accordance with the received voltage. The receiver spaced apart from the transmitter includes a load for emitting light, capacitors connected in series or in parallel in accordance with an equivalent resistance of the load, and a secondary coil for generating a secondary resonance frequency greater than the primary resonance frequency.
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公开(公告)号：US20220140658A1
公开(公告)日：2022-05-05
申请号：US17576168
申请日：2022-01-14
申请人： LG Electronics Inc.
发明人： Seonghun LEE , Byungsang JUNG , Hwanyong KIM , Seungje PARK , Sangdoo HA , Yongjun SON , Seonwook PARK , Jaesung YANG , Wonbok LEE , Gyoocheol CHOI , Joonggil JEONG
摘要： Disclosed is a refrigerator for uniformly illuminating an inner space thereof. The refrigerator includes a cabinet including a storage compartment having a predetermined size, a shelf installed in the storage compartment, the shelf including a light source unit for illuminating an inside of the storage compartment, a transmitter connected to an external power supply for wirelessly transmitting power, the transmitter having a primary resonance frequency within a predetermined range, and a receiver for wirelessly receiving the power from the transmitter so as to supply the power to the light source unit of the shelf, the transmitter transmitting the power to the receiver using a secondary resonance frequency generated when the receiver is located close to the transmitter.
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公开(公告)号：US20210083521A1
公开(公告)日：2021-03-18
申请号：US17103202
申请日：2020-11-24
申请人： LG Electronics Inc.
发明人： Seonghun LEE , Byungsang JUNG , Hwanyong KIM , Seungje PARK , Sangdoo HA , Yongjun SON , Seonwook PARK , Jaesung YANG , Wonbok LEE , Gyoocheol CHOI , Joonggil JEONG
摘要： Disclosed is a refrigerator for uniformly illuminating an inner space thereof. The refrigerator includes a cabinet including a storage compartment having a predetermined size, a shelf installed in the storage compartment, the shelf including a light source unit for illuminating an inside of the storage compartment, a transmitter connected to an external power supply for wirelessly transmitting power, the transmitter having a primary resonance frequency within a predetermined range, and a receiver for wirelessly receiving the power from the transmitter so as to supply the power to the light source unit of the shelf, the transmitter transmitting the power to the receiver using a secondary resonance frequency generated when the receiver is located close to the transmitter.
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公开(公告)号：US20190326784A1
公开(公告)日：2019-10-24
申请号：US16458819
申请日：2019-07-01
申请人： LG Electronics Inc.
发明人： Seonghun LEE , Byungsang JUNG , Hwanyong KIM , Seungje PARK , Sangdoo HA , Yongjun SON , Seonwook PARK , Jaesung YANG , Wonbok LEE , Gyoocheol CHOI , Joonggil JEONG
摘要： Disclosed is a refrigerator for uniformly illuminating an inner space thereof. The refrigerator includes a cabinet including a storage compartment having a predetermined size, a shelf installed in the storage compartment, the shelf including a light source unit for illuminating an inside of the storage compartment, a transmitter connected to an external power supply for wirelessly transmitting power, the transmitter having a primary resonance frequency within a predetermined range, and a receiver for wirelessly receiving the power from the transmitter so as to supply the power to the light source unit of the shelf, the transmitter transmitting the power to the receiver using a secondary resonance frequency generated when the receiver is located close to the transmitter.
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公开(公告)号：US20170211875A1
公开(公告)日：2017-07-27
申请号：US15381402
申请日：2016-12-16
申请人： LG ELECTRONICS INC.
发明人： Seonghun LEE , Byungsang JUNG , Hwanyong KIM , Seungje PARK , Sangdoo HA , Yongjun SON , Seonwook PARK , Jaesung YANG , Wonbok LEE , Gyoocheol CHOI , Joonggil JEONG
CPC分类号： H02J50/12 , F25D11/00 , F25D25/02 , F25D25/024 , F25D27/005 , F25D29/008 , F25D2325/022 , F25D2400/40 , F25D2700/02 , H01F27/2804 , H01F27/365 , H01F38/14
摘要： Disclosed is a refrigerator for uniformly illuminating an inner space thereof. The refrigerator includes a cabinet including a storage compartment having a predetermined size, a shelf installed in the storage compartment, the shelf including a light source unit for illuminating an inside of the storage compartment, a transmitter connected to an external power supply for wirelessly transmitting power, the transmitter having a primary resonance frequency within a predetermined range, and a receiver for wirelessly receiving the power from the transmitter so as to supply the power to the light source unit of the shelf, the transmitter transmitting the power to the receiver using a secondary resonance frequency generated when the receiver is located close to the transmitter.
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