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公开(公告)号：US12027887B2
公开(公告)日：2024-07-02
申请号：US18355897
申请日：2023-07-20
Applicant: LG INNOTEK CO., LTD.
Inventor： Yu Ri Park , Yong Il Kwon
CPC classification number: H02J50/60 , H02J7/02 , H02J50/12 , H02J50/20 , H02J50/80 , H02J50/90 , H04L5/0055 , H02J50/402
Abstract: A method of transmitting power of a wireless power transmitter, including a receiving phase of receiving a signal including an FOD status packet from a wireless power receiver; a first determination phase of determining whether a foreign object is present in a charging area of the wireless power transmitter based on the FOD status packet; a power control phase of controlling power transmission in a first power transfer mode upon determining that the foreign object is present in the charging area in the first determination phase, or controlling power transmission in a second power transfer mode upon determining that the foreign object is not present in the charging area in the first determination phase; and a second determination phase of determining whether the foreign object is present in the charging area based on information other than information included in the FOD status packet, while controlling power transmission in one of the first power transfer mode and the second power transfer mode by the power control phase.
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公开(公告)号：US12027886B2
公开(公告)日：2024-07-02
申请号：US18355887
申请日：2023-07-20
Applicant: LG INNOTEK CO., LTD.
Inventor： Yu Ri Park , Yong Il Kwon
CPC classification number: H02J50/60 , H02J7/02 , H02J50/12 , H02J50/20 , H02J50/80 , H02J50/90 , H04L5/0055 , H02J50/402
Abstract: A wireless power receiver for receiving power from a wireless power transmitter, including a receiving part configured to receive wireless power from the wireless power transmitter; and a main controller in which a foreign object detection status packet including at least one of a reference quality factor and a reference peak frequency is stored, wherein the main controller transmits the foreign object detection status packet to the wireless power transmitter; wherein the main controller receives a NAK response from the wireless power transmitter indicating that the foreign object is present, or receives an ACK response from the wireless power transmitter indicating that the foreign object is not present; and wherein the receiving part receives a first power from the wireless power transmitter according to the received NAK response, or receives a second power greater than the first power from the wireless power transmitter according to the received ACK response.
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公开(公告)号：US11349347B2
公开(公告)日：2022-05-31
申请号：US16929933
申请日：2020-07-15
Applicant: LG INNOTEK CO., LTD.
Inventor： Yu Ri Park , Yong Il Kwon
Abstract: A method of controlling a wireless power transmitter can include receiving, during a first determination phase, a foreign object detection status packet; before entering a first power transfer mode for transmitting first power and before entering a second power transfer mode for transmitting second power, determining whether a foreign object is present based on the foreign object detection status packet to generate a determination result; in response to determining that the foreign object is present based on the determination result, transmitting the first power according to the first power transfer mode; in response to determining that the foreign object is not present based on the determination result, transmitting the second power according to the second power transfer mode; and determining, during a second determination phase, whether the foreign object is present while transmitting the first power in the first power transfer mode.
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4.发明授权公开(公告)号：US10069345B2
公开(公告)日：2018-09-04
申请号：US15175592
申请日：2016-06-07
Applicant: LG INNOTEK CO., LTD.
Inventor： Jae Kyu Lee , Yong Il Kwon
Abstract: Disclosed are a method of managing power using a wireless charging system, and an apparatus and system therefor. The wireless power management method in a wireless power transmitter for supplying power to at least one user device including a wireless power receiver installed therein includes receiving first to nth state information items corresponding to the at least one user device, respectively, calculating first statistical information based on the first to nth state information items, and transmitting the first statistical information to a server connected via a network. Accordingly, an effective wireless power management method in a wireless charging system is provided.
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公开(公告)号：US12249850B2
公开(公告)日：2025-03-11
申请号：US18356078
申请日：2023-07-20
Applicant: LG INNOTEK CO., LTD.
Inventor： Yu Ri Park , Yong Il Kwon
Abstract: A wireless power transmitter of transmitting power to a wireless power receiver, including a controller configured to determine whether a foreign object is present in a charging area of the wireless power transmitter; and a transmission part configured to transmit a wireless power according to whether the foreign object is present, wherein the controller receives a signal including an FOD status packet from the wireless power receiver, determines whether the foreign object is present in a charging area of the wireless power transmitter based on the FOD status packet; wherein the controller is set to operate in a first power transfer mode when it is determined that the foreign object is present in the charging area, or to operate in a second power transfer mode when it is determined that the foreign object is not present in the charging area; wherein the controller receives a reception power packet including information on the reception power intensity from the wireless power receiver, determines the reception power intensity of the wireless power receiver based on the information on the reception power intensity, measures or calculates a power loss based on a difference between the determined reception power intensity and the transmission power intensity of the wireless power transmitter, and corrects any one of a transmission power, a reception power, and a loss of power using the power loss; and wherein the controller determines whether the foreign object is present in the charging area of the wireless power transmitter while being operated in the second power transfer mode.
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Patent Agency Ranking
公开(公告)号：US12184092B2
公开(公告)日：2024-12-31
申请号：US18355870
申请日：2023-07-20
Applicant: LG INNOTEK CO., LTD.
Inventor： Yu Ri Park , Yong Il Kwon
Abstract: A wireless power transmitter for transmitting power to a wireless power receiver, including a controller configured to determine whether a foreign object is present; and a transmission part configured to transmit wireless power according to whether the foreign object is present, wherein the controller receives a foreign object detection status packet including at least one of a reference quality factor and a reference peak frequency from the wireless power receiver, and detects whether the foreign object is present based on the foreign object detection status packet, wherein the controller transmits a NAK response indicating that the foreign object is present or an ACK response indicating that the foreign object is not present to the wireless power receiver, and wherein the transmission part transmits a first power to the wireless power receiver according to the transmitted NAK response or transmits a second power greater than the first power to the wireless power receiver according to the transmitted ACK response.
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公开(公告)号：US11646607B2
公开(公告)日：2023-05-09
申请号：US17318000
申请日：2021-05-12
Applicant: LG INNOTEK CO., LTD.
Inventor： Jae Hee Park , Yong Il Kwon
CPC classification number: H02J50/60 , G01N27/02 , G01R27/26 , H02J3/02 , H02J7/00308 , H02J7/02 , H02J13/00001 , H02J50/12 , H02J7/00045
Abstract: A wireless power receiver including a transmitter configured to transmit to a wireless power transmitter, a foreign object detection status packet including a mode bit field indicating whether a foreign object detection status packet includes a reference peak frequency of the wireless power receiver, in which the reference peak frequency is pre-assigned to the wireless power receiver; and a receiver configured to receive from the wireless power transmitter, a response indicating the foreign object is present or not present in a charging area of the wireless power transmitter, wherein the response is determined based on a comparison of a measured peak frequency of a power signal transmitted by the wireless power transmitter and an adaptable threshold frequency adapted based on the reference peak frequency included in the foreign object detection status packet from the wireless power receiver.
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公开(公告)号：US10916973B2
公开(公告)日：2021-02-09
申请号：US16539511
申请日：2019-08-13
Applicant: LG INNOTEK CO., LTD.
Inventor： Jae Hee Park , Yong Il Kwon
Abstract: A method for detecting a foreign object disposed in a charging area of a wireless power transmitter can include transmitting, by the wireless power transmitter, a power signal having a predetermined strength; measuring, via a controller, a peak frequency of the power signal; receiving, from a wireless power receiver, information about a reference peak frequency of the wireless power receiver; determining, via the controller, a threshold frequency based on the reference peak frequency; and determining, via the controller, whether the foreign object is present in the charging area based on a comparison of the measured peak frequency of the power signal with the determined threshold frequency.
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公开(公告)号：US12191681B2
公开(公告)日：2025-01-07
申请号：US18356020
申请日：2023-07-20
Applicant: LG INNOTEK CO., LTD.
Inventor： Yu Ri Park , Yong Il Kwon
Abstract: A wireless power receiver of receiving power from a wireless power transmitter, including a receiving part configured to receive wireless power from the wireless power transmitter; and a main controller configured to generate a signal including an FOD status packet, wherein the main controller transmits a signal including the FOD status packet to the wireless power transmitter; wherein the main controller receives a first power from the wireless power transmitter when a NAK response indicating that a foreign object is present in a charging area of the wireless power transmitter is received from the wireless power transmitter, or receives a second power from the wireless power transmitter when an ACK response indicating that the foreign object is not present in the charging area of the wireless power transmitter is received from the wireless power transmitter, in response to the FOD status packet; and wherein the main controller receives a signal including information on a result of determining whether the foreign object is present in the charging area from the wireless power transmitter based on information other than information included in the FOD status packet by the wireless power transmitter while receiving the first power or the second power.
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公开(公告)号：US12184093B2
公开(公告)日：2024-12-31
申请号：US18356056
申请日：2023-07-20
Applicant: LG INNOTEK CO., LTD.
Inventor： Yu Ri Park , Yong Il Kwon
Abstract: A method of transmitting power of a wireless power transmitter, including a reception phase of receiving a signal including an FOD status packet from a wireless power receiver; a first determination phase of determining whether a foreign object is present in a charging area of the wireless power transmitter based on the FOD status packet; a power control phase of controlling power transmission in a first power transfer mode if it is determined in the first determination phase that the foreign object is present in the charging area, or controlling power transmission in a second power transfer mode if it is determined in the first determination phase that the foreign object is not present in the charging area; a phase of receiving a reception power packet including information on a reception power intensity from the wireless power receiver; a phase of determining the reception power intensity of the wireless power receiver based on information on the reception power intensity; a phase of measuring or calculating a power loss based on a difference between the determined reception power intensity and the transmission power intensity of the wireless power transmitter; a phase of correcting any one of a transmission power, a reception power, and a loss of power using the power loss; and a second determination phase of determining whether the foreign object is present in the charging area while controlling power transmission in the second power transfer mode by the power control phase.
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