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公开(公告)号：US20210266042A1
公开(公告)日：2021-08-26
申请号：US17260790
申请日：2019-07-16
Applicant: LG ELECTRONICS INC.
Inventor： Joonho PARK , Bongsik KWAK , Sungkyu KIM , Yongcheol PARK , Seonghun LEE , Jihyun LEE
Abstract: The present invention relates to an apparatus and a method for supporting heterogeneous communication in a wireless power transmission system. The present disclosure discloses a wireless power receiver comprising: a power pickup unit configured to receive, from a wireless power transmitter, a digital ping signal or wireless power by magnetically coupling with the wireless power transmitter at an operating frequency, and to convert an alternating current signal generated by the wireless power into a direct current signal; a communication/control unit configured to receive the direct current signal from the power pickup unit, and to perform at least one of an in-band communication using the operating frequency and an out-band communication using a frequency other than the operating frequency; and a load configured to receive the direct current signal from the power pickup unit. As a heterogeneous communication protocol can be selected at an early stage of power transmission between the wireless power transmitter and the wireless power receiver, it is possible to support various applications of wireless power transmission.
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公开(公告)号：US20210091601A1
公开(公告)日：2021-03-25
申请号：US17028733
申请日：2020-09-22
Applicant: LG ELECTRONICS INC.
Inventor： Sungkyu KIM , Bongsik KWAK , Hyunggeol KWAK , Seonghun LEE
Abstract: A wireless power transmitter can include a power transmitter including a plurality of first transmitting coils and a second transmitting coil; and a controller, in which the plurality of first transmitting coils are disposed on a same plane, the second transmitting coil is disposed on a different plane than the plurality of first transmitting coils, the second transmitting coil is disposed at a center of a region corresponding to the plurality of first transmitting coils, an area of a region corresponding to the second transmitting coil is smaller than an area of the region corresponding to the plurality of first transmitting coils, and the controller is configured to transmit power to a wireless power receiver through the plurality of first transmitting coils and the second transmitting coil when a receiving coil in the wireless power receiver is of a first type, and transmit power to the wireless power receiver through the second transmitting coil when the type of the receiving coil is of a second type.
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3.发明公开公开(公告)号：US20240324076A1
公开(公告)日：2024-09-26
申请号：US18579711
申请日：2022-07-08
Applicant: LG ELECTRONICS INC.
Inventor： Sungkyu KIM , Seonghun LEE , Bongsik KWAK , Hongkwon KIM
CPC classification number: H05B6/1245 , H05B6/062 , H05B6/1236
Abstract: Discussed herein is an induction heating type cooktop including a glass upper plate configured to have a heating region to heat a cooking container, a working coil configured to generate a first magnetic field to heat the cooking container, an inverter comprising a switching element driven to allow a current to flow through the working coil, and a shield circuit configured to generate a second magnetic field to negate the effects of the first magnetic field.
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公开(公告)号：US20220158493A1
公开(公告)日：2022-05-19
申请号：US17593261
申请日：2020-03-16
Applicant: LG ELECTRONICS INC.
Inventor： Hyengcheul CHOI , Bongsik KWAK , Hyunggeol KWAK , Sungkyu KIM , Jonggu KIM , Jinhong KIM , Sooyong PARK , Yongcheol PARK , Joonho PARK , Seonghun LEE
Abstract: The present specification relates to a wireless power receiving device, receiving method, and receiving system, the device comprising individual rectifiers for each receiving coil, wherein the individual rectifiers comprise isolators for isolating a receiving coil for PC0 from a receiving coil for PC1.
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公开(公告)号：US20200227951A1
公开(公告)日：2020-07-16
申请号：US16741908
申请日：2020-01-14
Applicant: LG Electronics Inc.
Inventor： Joonho PARK , Seonghun LEE , Bongsik KWAK , Jihyun LEE , Sungkyu KIM
Abstract: The present invention relates to a wireless power transfer apparatus. The wireless power transfer apparatus includes: a resonant circuit unit including a plurality of coils and a plurality of capacitor elements respectively connected to the plurality of coils; and a controller configured to calculate individual quality factor of each of the plurality of coils and a total quality factor of the plurality of coils, at a resonant frequency, and calculate whether foreign matter exists on a charging surface, based on the total quality factor and the individual quality factor, at the resonance frequency. Accordingly, foreign matter on the charging surface can be detected more easily.
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Patent Agency Ranking
公开(公告)号：US20200227932A1
公开(公告)日：2020-07-16
申请号：US16742374
申请日：2020-01-14
Applicant: LG ELECTRONICS INC.
Inventor： Sungkyu KIM , Seonghun LEE , Bongsik KWAK , Jihyun LEE , Joonho PARK
Abstract: The present invention relates to a wireless power transmitting device. The wireless power transmitting device comprises a transmitter coil section with a plurality of partially overlapping transmitter coils; a fan for cooling heat generated by the transmitter coil section; and a controller for sending out a detection signal through the transmitter coil section, calculating the number of operating coils based on the strength of a response signal to the detection signal, and controlling the fan based on the calculated number of operating coils. Accordingly, heat generated by the transmitter coils can be reduced more efficiently.
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公开(公告)号：US20190020848A1
公开(公告)日：2019-01-17
申请号：US16036245
申请日：2018-07-16
Applicant: LG ELECTRONICS INC.
Inventor： Taewook KWON , Bongsik KWAK , Sungkyu KIM , Jeongkyo SEO , Beomseok CHAE
Abstract: An image display apparatus are disclosed. The image display apparatus includes a display including a first electrode and a second electrode, for wireless power reception, a signal processor disposed apart from the display, and including a third electrode and a fourth electrode, for wireless power transmission, and a first bridge electrode and a second bridge electrode, including one ends apart from the first electrode and the second electrode, facing the first electrode and the second electrode, and the other ends apart from the first bridge electrode and the second bridge electrode, facing the first bridge electrode and the second bridge electrode.
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公开(公告)号：US20210351627A1
公开(公告)日：2021-11-11
申请号：US17282654
申请日：2019-10-04
Applicant: LG ELECTRONICS INC.
Inventor： Joonho PARK , Bongsik KWAK , Sungkyu KIM , Seonghun LEE , Jihyun LEE
Abstract: The present disclosure relates to a wireless power transmission device. A wireless power transmission device according to an embodiment of the present disclosure includes: a coil part including a plurality of partially overlapping coils; a coil combination generator configured to generate coil combinations including at least one of the plurality of coils; and a controller configured to transmit a coil selection signal through the coil combinations and to select an operating coil combination from the coil combinations based on a response intensity of a response signal for the coil selection signal and charging efficiency of a wireless power reception device. Accordingly, a high-efficiency charging area can be extended in partially overlapping multiple coils.
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9.发明申请公开(公告)号：US20210028653A1
公开(公告)日：2021-01-28
申请号：US17044600
申请日：2019-04-02
Applicant: LG Electronics Inc.
Inventor： Joonho PARK , Bongsik KWAK , Sungkyu KIM , Jihyun LEE
Abstract: The present disclosure relates to a device and method for controlling transmission of power in a wireless power transmitting system. The present specification discloses a wireless power transmitting method comprising the steps of: performing a digital ping on each of a plurality of coil combinations formed from a plurality of primary coils; receiving a signal intensity packet of each of the coil combinations from the wireless power receiving device; and forming the magnetic coupling by operating a coil combination selected on the basis of the signal intensity packet, and transmitting wireless power to the wireless power receiving device on the basis of the magnetic coupling. Therefore, an optimal multi-coil can be rapidly selected according to the location of the wireless power receiving device.
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公开(公告)号：US20200244108A1
公开(公告)日：2020-07-30
申请号：US16627200
申请日：2018-06-28
Applicant: LG Electronics Inc.
Inventor： Sungkyu KIM , Jeongkyo SEO , Jinmoo PARK , Seonghun LEE , Bongsik KWAK , Jaesung LEE , Jihyun LEE , Gyunghwan YOOK , Joonho PARK , Youngchan CHO
Abstract: The present invention relates to a multi-coil based wireless power transmission device and method. Disclosed in the present specification is a wireless power transmission device comprising: a primary coil array forming a magnetic coupling with a secondary coil, which is provided in a wireless power reception device, so as to transmit wireless power to the wireless power reception device; a plurality of inverters connected to a plurality of primary coils one-to-one so as to selectively drive each of the plurality of primary coils; a communication and control unit, which controls the plurality of inverters and communication with the wireless power reception device such that at least one primary coil is driven on the basis of the degree of magnetic coupling formed by each primary coil and the secondary coil, thereby determining output, which can be provided by the primary coil array, within a value obtained by summing all the maximum outputs individually set to the respective primary coils. In an intermediate power level wireless power transmission system, a non-chargeable state due to coil misalignment can be compensated for on the basis of multi-coils, an extended design of a charging area at low cost is simple, and the degree of freedom of the position or the alignment of a reception device can be increased.
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