公开(公告)号：US20230344281A1

公开(公告)日：2023-10-26

申请号：US18024711

申请日：2021-09-06

Applicant: LG Electronics Inc.

Inventor： Hyoungseok KIM ,  Jaeyeol KIM ,  Seonghun LEE ,  Gyunghwan YOOK ,  Hongkwon KIM

IPC: H02J50/80 ,  H02J50/60 ,  H02J50/40 ,  H02J50/12

CPC classification number: H02J50/80 ,  H02J50/60 ,  H02J50/402 ,  H02J50/12

Abstract: A wireless power transmitting device according to an embodiment of the present specification relates to a wireless power transmitting device for transmitting wireless power to a wireless power receiving device, and comprises: a power conversion circuit including a primary coil for transmitting the wireless power to the wireless power receiving device; and a communication/control circuit for communicating with the wireless power receiving device and controlling the power conversion circuit, wherein, before transmitting the wireless power to the wireless power receiving device, the communication/control circuit temporarily applies driving power to the primary coil and then stops the transmission of the driving power, and obtains a quality factor on the basis of a change in the voltage or current of the primary coil during a period of time in which the transmission of the driving power is stopped.

公开(公告)号：US20230318363A1

公开(公告)日：2023-10-05

申请号：US18024675

申请日：2021-09-06

Applicant: LG Electronics Inc.

Inventor： Hyoungseok KIM ,  Jaeyeol KIM ,  Seonghun LEE ,  Gyunghwan YOOK ,  Hongkwon KIM

IPC: H02J50/60 ,  H02J50/10 ,  H02J50/80

CPC classification number: H02J50/60 ,  H02J50/10 ,  H02J50/80

Abstract: A wireless power transmitting device according to an embodiment of the present specification transmits wireless power to a wireless power receiving device, and includes a power conversion circuit including a primary coil for transmitting the wireless power to the wireless power receiving device and a communication/control circuit for communicating with the wireless power receiving device and controlling the power conversion circuit, wherein, to detect foreign substances between the wireless power receiving device and the wireless power transmitting device, the communication/control circuit stops the transmission of the wireless power for a slot time, detects the foreign substances on the basis of a change in the voltage or current of the primary coil within the slot time, and sets the slot time to start from a point in time when the current of the primary coil is 0.

公开(公告)号：US20220016449A1

公开(公告)日：2022-01-20

申请号：US17245534

申请日：2021-04-30

Applicant: LG Electronics Inc.

Inventor： Hyengcheul CHOI ,  Jinmoo PARK ,  Seonghun LEE ,  Junchan KWON ,  Taewook KWON ,  Minsoo KIM

IPC: A62B18/00 ,  A62B18/02 ,  A62B18/08

Abstract: A mask apparatus includes a mask body having a fan module, a seal defining a breathing space, a pressure sensor sensing air pressure in the breathing space, a mask body cover coupled to the mask body, and a controller that controls a rotation speed of the fan module based on pressure values. The controller is configured to determine breathing information including a maximum pressure value and time point, and a minimum pressure value and time point, determine a breathing state of a user based on the breathing information, determine whether the breathing state is a steady state, determine a tidal volume of the user based on the breathing information, and control the rotation speed of the fan module based on the tidal volume.

公开(公告)号：US20210402222A1

公开(公告)日：2021-12-30

申请号：US17231466

申请日：2021-04-15

Applicant: LG Electronics Inc.

Inventor： Taewook KWON ,  Jinmoo PARK ,  Junchan KWON ,  Seonghun LEE ,  Hyengcheul CHOI ,  Gyunghwan YUK ,  Minsoo KIM

IPC: A62B18/00 ,  A62B18/02 ,  A62B18/08 ,  A62B9/00 ,  A62B7/10

Abstract: A mask apparatus includes a mask body, a fan module, a seal that defines a breathing space, a pressure sensor coupled to the mask body and configured to sense an air pressure in the breathing space, and a controller coupled to the mask body and configured to control a rotation speed of the fan module based on the air pressure. The controller is configured to determine a breathing cycle based on a maximum pressure value and a minimum pressure value among air pressure values sensed by the pressure sensor, determine a time difference between a maximum time point and a minimum time point, determine an expected time point of inhalation in a subsequent breathing cycle based on the breathing cycle and the time difference, and increase the rotation speed of the fan module based on a current time corresponding to the expected time point of inhalation.

公开(公告)号：US20210167816A1

公开(公告)日：2021-06-03

申请号：US17170322

申请日：2021-02-08

Applicant: LG ELECTRONICS INC.

Inventor： Jinho YOUN ,  Jaeyeol KIM ,  Seonghun LEE ,  Hyokune HWANG

IPC: H04B5/00 ,  H02J50/40 ,  H02J50/80 ,  H02J50/60 ,  H02J50/12 ,  H02J7/02

Abstract: A wireless power receiver for receiving wireless power from a wireless power transmitter and for transmitting a control packet to the wireless power transmitter in a wireless power transfer system, includes a power pick-up unit configured to receive wireless power from the wireless power transmitter via magnetic coupling with the wireless power transmitter, and to convert an AC signal generated by the wireless power to a DC signal, a communication/control unit configured to receive the DC signal from the power pick-up unit, and to perform control of the wireless power and a load configured to receive the DC signal from the power pick-up unit, wherein the communication/control unit is configured to transmit a control error packet including a control error value for the wireless power to the wireless power transmitter in a first time interval or a second time interval.

公开(公告)号：US20190326784A1

公开(公告)日：2019-10-24

申请号：US16458819

申请日：2019-07-01

Applicant: LG Electronics Inc.

Inventor： Seonghun LEE ,  Byungsang JUNG ,  Hwanyong KIM ,  Seungje PARK ,  Sangdoo HA ,  Yongjun SON ,  Seonwook PARK ,  Jaesung YANG ,  Wonbok LEE ,  Gyoocheol CHOI ,  Joonggil JEONG

IPC: H02J50/12 ,  F25D25/02 ,  F25D29/00 ,  F25D27/00 ,  H01F38/14 ,  F25D11/00

Abstract: 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.

公开(公告)号：US20190097450A1

公开(公告)日：2019-03-28

申请号：US16204244

申请日：2018-11-29

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Hyunbeom LEE ,  Jaesung LEE ,  Byungsang JUNG ,  Jinmoo PARK ,  Seonghun LEE ,  Jihyun LEE ,  Jeongkyo SEO

IPC: H02J7/02 ,  H02J50/80 ,  H02J50/40 ,  H02J50/10 ,  H02J50/12

Abstract: A wireless power transmitter which is capable of charging a plurality of wireless power receivers is discussed. The wireless power transmitter includes a plurality of coil cells, a main half-bridge inverter to which a main pulse signal is applied, a plurality of sub half-bridge inverters to which a first sub pulse signal or a second sub pulse signal is applied, at least one current sensor configured to monitor a current, and a communications and control unit configured to control the pulse signals applied to the main half-bridge inverter and sub half-bridge inverters and communicate with the wireless power receivers.

公开(公告)号：US20180351369A1

公开(公告)日：2018-12-06

申请号：US15775269

申请日：2016-02-18

Applicant: LG ELECTRONICS INC.

Inventor： Seonghun LEE ,  Byungsang JUNG

IPC: H02J5/00 ,  H02J7/02 ,  H02J50/80 ,  H02J50/12

CPC classification number: H02J50/10 ,  H02J50/80 ,  H04B5/00

Abstract: A control method for an inductive power supply (IPS), according to one embodiment of the present invention, can comprise the steps of: applying a ping for sensing an object; measuring a coil current; sensing the object on the basis of the coil current measurement result; transmitting, to the object, the minimum power for waking up a communication unit of the object, wherein the communication unit performs communication by using an out-of band communication protocol; receiving, from the object, pairing information through the out-of band communication protocol so as to perform pairing with the object; and transmitting main power to the paired object.

公开(公告)号：US20170353054A1

公开(公告)日：2017-12-07

申请号：US15527162

申请日：2015-02-06

Applicant: LG ELECTRONICS INC.

Inventor： Seonghun LEE

IPC: H02J50/12 ,  H04B5/00 ,  H02J7/02

Abstract: The present invention relates to a wireless power transmission device, a wireless power reception device, and a wireless charging system in a wireless power transmission field. The wireless power transmission device according to the present invention comprises: a power conversion unit having a plurality of transmission coils formed to transmit wireless power; a first communication module for sensing a wireless power reception device located in any one of power transmission areas respectively corresponding to the plurality of transmission coils; a second communication module for transmitting/receiving, through the first communication module, a power control message to/from the wireless power reception device, by corresponding to the sensing of the wireless power reception device located in any one power transmission area; and a control unit for transmitting, on the basis of the power control message, wireless power to the wireless power reception device located in any one power transmission area through a transmission coil arranged to correspond to any one power transmission area.

公开(公告)号：US20170211875A1

公开(公告)日：2017-07-27

申请号：US15381402

申请日：2016-12-16

Applicant: LG ELECTRONICS INC.

Inventor： Seonghun LEE ,  Byungsang JUNG ,  Hwanyong KIM ,  Seungje PARK ,  Sangdoo HA ,  Yongjun SON ,  Seonwook PARK ,  Jaesung YANG ,  Wonbok LEE ,  Gyoocheol CHOI ,  Joonggil JEONG

IPC: F25D27/00 ,  F25D11/00 ,  H02J50/12 ,  F25D25/02

CPC classification number: H02J50/12 ,  F25D11/00 ,  F25D25/02 ,  F25D25/024 ,  F25D27/005 ,  F25D29/008 ,  F25D2325/022 ,  F25D2400/40 ,  F25D2700/02 ,  H01F27/2804 ,  H01F27/365 ,  H01F38/14

Abstract: 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.