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公开(公告)号：US10797507B2
公开(公告)日：2020-10-06
申请号：US16096414
申请日：2017-03-17
Applicant: LG INNOTEK CO., LTD.
Inventor： Jong Heon Lee
Abstract: The present invention relates to a wireless charging method, and an apparatus and a system therefor. A wireless charging method in a wireless power transmitter, according to an embodiment of the present invention, may comprise the steps of: controlling transmission power on the basis feedback signal periodically received from wireless power receiver during power transmission; determining whether or not the wireless power receiver is present in a charging area during the power transmission; and maintaining the intensity of the transmission power constant if the result of the determination shows that the wireless power receiver is not present in the charging area. Therefore, the present invention is advantageous that it is possible to prevent, in advance, the power transmission from being unnecessarily stopped against a user's intention.
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公开(公告)号：US10608475B2
公开(公告)日：2020-03-31
申请号：US16429943
申请日：2019-06-03
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae , Dong Ho Yong , Do Hyun Won , Jong Heon Lee
Abstract: A wireless power receiver for transferring a power received from a wireless power transmitter to a load, the wireless power receiver including a receiving coil configured to receive an AC power from the wireless power transmitter, a rectifier configured to rectify the AC power into a DC power and a controller configured to monitor a DC voltage at an output of the rectifier, in which the wireless power receiver transceives information with the wireless power transmitter through an in-band communication, and the controller creates a control signal to adjust the AC power received from the wireless power transmitter and continuously is configured to charge the load when a charging state is changed.
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公开(公告)号：US10199875B2
公开(公告)日：2019-02-05
申请号：US15321532
申请日：2015-06-25
Applicant: LG INNOTEK CO., LTD.
Inventor： Jong Heon Lee , Soo Young Park
Abstract: A transmitter for transmitting wireless power according to an embodiment of the present invention includes a transmission side communication unit, wherein the transmission side communication unit transmits a first control signal to a reception side communication unit, then receives a second control signal including information about an amount of power of the first control signal from the reception side communication unit, and controls the amount of power of the first control signal by comparing the amount of power of the first control signal with a predetermined range based on the second control signal.
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公开(公告)号：US10348135B2
公开(公告)日：2019-07-09
申请号：US16053987
申请日：2018-08-03
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae , Dong Ho Yong , Do Hyun Won , Jong Heon Lee
Abstract: A charging control device includes a capacitor, a comparison unit and a switching unit. The capacitor is charged with a voltage converted from power received from a wireless power sending device. The comparison unit compares the voltage of the capacitor with a reference voltage, and generates an output signal according to the result of the comparison. The switching unit is connected to the front end of the capacitor and is switched by the output signal from the comparison unit so as to control whether to supply the converted voltage to a load terminal.
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公开(公告)号：US11056931B2
公开(公告)日：2021-07-06
申请号：US16644380
申请日：2018-08-21
Applicant: LG INNOTEK CO., LTD.
Inventor： Jay Park , Jong Heon Lee
Abstract: The present invention relates to wireless power transmission technology, and more particularly, to a wireless power transfer method and a device therefor. The wireless power transfer method may include operating with a first driving voltage, determining whether a ping phase is entered, determining whether the wireless power transmitter is in a first state when the ping phase is entered; and operating with a second driving voltage when the first state is determined.
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Patent Agency Ranking
公开(公告)号：US10951072B2
公开(公告)日：2021-03-16
申请号：US16077184
申请日：2017-02-02
Applicant: LG INNOTEK CO., LTD.
Inventor： Min Young Jo , Jong Heon Lee , Yong Suk Chae
Abstract: A wireless power transmitter having a plurality of transmission coils is disclosed. The present transmitter comprises: first to Nth coils; and a control unit for transmitting, to a wireless power receiver, a first sensing signal through the first to Nth coils, and adjusting transmission orders of the first to Nth coils for transmitting a second sensing signal, on the basis of the signal strength of a received first signal strength indicator when the first signal strength indicator corresponding to the first sensing signal is received, wherein the control unit can transmit, to the receiver, the second sensing signal through the first to Nth coils on the basis of the adjusted transmission orders. Therefore, device efficiency and user convenience can be improved.
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公开(公告)号：US10809343B2
公开(公告)日：2020-10-20
申请号：US16312115
申请日：2017-04-10
Applicant: LG INNOTEK CO., LTD.
Inventor： Jong Heon Lee
Abstract: The present invention relates to a wireless power transmission method in a wireless charging system supporting electromagnetic resonance and a device therefor. According to one embodiment of the present invention, a wireless power transmission method in a wireless power transmitter wirelessly supplying power to a wireless power receiver through a resonance phenomenon can comprise the steps of: entering a configuration state according to the application of power and performing booting; generating a random first standby offset when the booting is completed; and entering a power saving state at a point in time determined on the basis of the first standby offset, so as to initiate a beacon sequence. Therefore, the present invention has an advantage of enabling power loss caused by cross connection and device damage caused by heat generation in the wireless charging system to be minimized.
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公开(公告)号：US10284016B2
公开(公告)日：2019-05-07
申请号：US15162179
申请日：2016-05-23
Applicant: LG INNOTEK CO., LTD.
Inventor： Soo Young Park , Su Bin Park , Jong Heon Lee
Abstract: An apparatus for receiving a wireless power signal includes a detection unit configured to discover a power signal having plural components, each generated by plural wireless charging techniques, a recognition unit configured to analyze the power signal to recognize which component of the power signal can be corresponding to each of the plural wireless charging techniques, a combination unit configured to combine outputs of the recognition unit into a single energy signal, and a charging unit configured to use the energy signal for charging a battery.
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公开(公告)号：US10069343B2
公开(公告)日：2018-09-04
申请号：US15021593
申请日：2014-09-12
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae , Dong Ho Yong , Do Hyun Won , Jong Heon Lee
CPC classification number: H02J50/12 , H02J5/00 , H02J7/0068 , H02J7/025 , H02J7/045 , H02J7/345 , H02J50/80
Abstract: A charging control device includes a capacitor, a comparison unit and a switching unit. The capacitor is charged with a voltage converted from power received from a wireless power sending device. The comparison unit compares the voltage of the capacitor with a reference voltage, and generates an output signal according to the result of the comparison. The switching unit is connected to the front end of the capacitor and is switched by the output signal from the comparison unit so as to control whether to supply the converted voltage to a load terminal.
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公开(公告)号：US10178623B2
公开(公告)日：2019-01-08
申请号：US15327946
申请日：2015-07-21
Applicant: LG INNOTEK CO., LTD.
Inventor： Yong Suk Chae , Soo Young Park , Jong Heon Lee
Abstract: Disclosed herein is a transmitting apparatus for both wireless charging and short range communication. According to an embodiment, the transmitting apparatus for both wireless charging and short range communication includes a power transmitter configured to wirelessly transmit power to a power receiver, a communication transmitter configured to wirelessly transmit information to a communication receiver, and a controller configured to control the transmitting apparatus to be selectively switched between a first mode in which the power transmitter is enabled and the communication transmitter is disabled and a second mode in which the communication transmitter is enabled and the power transmitter is disabled. The controller may switch to the first mode when the power receiver is sensed, and may switch to the second mode when the communication receiver is sensed. According to an embodiment of the present invention, a power receiver or a communication receiver is sensed and then a power transmitter or a communication transmitter corresponding thereto is selectively operated so that a communication error that occurs when the power transmitter and the communication transmitter are simultaneously operated is prevented and an unnecessary waste of power is reduced.
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