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公开(公告)号：US12120800B2
公开(公告)日：2024-10-15
申请号：US17271112
申请日：2019-08-30
Applicant: LG ELECTRONICS INC.
Inventor： Wongyu Park , Gwang Rok Kim , Bada Yoon , John Kang
CPC classification number: H05B6/065 , H02M3/158 , H05B6/04 , H05B6/1272
Abstract: A method for controlling an induction heating device according to an embodiment of the present disclosure includes driving a first working coil at a first target frequency, receiving a driving command for a second working coil, stopping the driving of the first working coil and driving the second working coil at a preset first adjustment frequency, and determining a second target frequency of the second working coil corresponding to the driving command for the second working coil.
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公开(公告)号：US12144086B2
公开(公告)日：2024-11-12
申请号：US17271823
申请日：2019-08-30
Applicant: LG ELECTRONICS INC.
Inventor： Bada Yoon , Gwang Rok Kim , Wongyu Park
IPC: H05B6/06
Abstract: According to an embodiment, a method of controlling an induction heating device comprises determining a first target frequency of a first working coil corresponding to a driving command for the first working coil, determining a second target frequency of a second working coil corresponding to a driving command for the second working coil, determining a final driving frequency of the first working coil and a final driving frequency of the second working coil based on the first target frequency and the second target frequency, determining output control methods of the first working coil and the second working coil based on the first target frequency, the second target frequency, the final driving frequency of the first working coil, and the final driving frequency of the second working coil, and driving the first working coil and the second working coil at the final driving frequencies according to the output control methods.
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Patent Agency Ranking
3.发明授权公开(公告)号：US10904953B2
公开(公告)日：2021-01-26
申请号：US16030984
申请日：2018-07-10
Applicant: LG Electronics Inc.
Inventor： Bada Yoon , John Kang , Wongyu Park
Abstract: An induction heating device includes a working coil, an inverter, an inverter driving unit configured to apply a switching signal to the inverter to enable the inverter to perform a switching operation, a control unit configured to generate and apply a control signal to the inverter driving unit to cause the inverter driving unit to generate the switching signal based on the control signal, and a determination unit configured to determine a type of an object disposed on the induction heating device based on (i) a first resonant current value measured from the working coil in response to operation of the inverter by the switching signal having a first operation frequency and (ii) a second resonant current value measured from the working coil in response to operation of the inverter by the switching signal having a second operation frequency.
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公开(公告)号：US11540360B2
公开(公告)日：2022-12-27
申请号：US16556504
申请日：2019-08-30
Applicant: LG ELECTRONICS INC.
Inventor： Wongyu Park , Gwangrok Kim , Bada Yoon
Abstract: An induction heater device and a method for controlling an induction heating device are provided. The method may include determining a first target frequency of a first working coil corresponding to the drive command for the first working coil, determining a second target frequency of a second working coil corresponding to the drive command for the second working coil, and determining a final drive frequency of the first working coil and a final drive frequency of the second working coil based on the first target frequency and the second target frequency, respectively.
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公开(公告)号：US11445578B2
公开(公告)日：2022-09-13
申请号：US16598642
申请日：2019-10-10
Applicant: LG Electronics Inc.
Inventor： Seungbok Ok , Wongyu Park , Byeong Wook Park
Abstract: An induction heating device includes a case, a working coil, a cover plate, a luminous element, a light guide disposed around the working coil, an input interface that is flush with an upper surface of the cover plate, a first controller configured to control driving of the working coil and the luminous element and to detect a position of one or more objects disposed on the upper surface and an arrangement sequence of the one or more objects placed on the upper surface, and a second controller configured to receive, from the first controller, information on the position and the arrangement sequence of the one or more objects, and control the input interface to display an image corresponding to a heating zone for the one or more objects based on the information on the position and the arrangement sequence of the one or more objects.
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公开(公告)号：US12177953B2
公开(公告)日：2024-12-24
申请号：US17271159
申请日：2019-08-30
Applicant: LG ELECTRONICS INC.
Inventor： Wongyu Park , Gwang Rok Kim , Bada Yoon
Abstract: The method for controlling an induction heating device according to the present disclosure may include receiving a driving command for a second working coil when a first working coil is being driven at a first target frequency, stopping driving of the first working coil and driving the second working coil at a preset first adjustment frequency, determining a second target frequency of the second working coil corresponding to the driving command for the second working coil, determining a final driving frequency of the first working coil and a final driving frequency of the second working coil based on the first target frequency and the second target frequency, respectively, driving the first working coil and the second working coil simultaneously at a second adjustment frequency, and adjusting a driving frequency of the first working coil and a driving frequency of the second working coil to the final driving frequency, respectively.
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公开(公告)号：US20220217819A1
公开(公告)日：2022-07-07
申请号：US17569892
申请日：2022-01-06
Applicant: LG ELECTRONICS INC.
Inventor： Sihoon JEONG , Bada Yoon , Wongyu Park
Abstract: A controller of the induction heating apparatus in one embodiment may determine an overlapped period of a resonance current value of a working coil and a driving voltage value of a switching element included in an inverter circuit. The overlapped period may denote a period for which the resonance current value and the driving voltage value are all positive numbers. The controller may determine whether a driving state of the induction heating apparatus is normal or abnormal based on a time point at which the overlapped period appears. When determining that the driving state of the induction heating apparatus is abnormal, the controller may stop driving of the working coil.
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