Invention Grant
- Patent Title: Induction heating device and method for determining loaded-object on the induction heating device
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Application No.: US16030984Application Date: 2018-07-10
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Publication No.: US10904953B2Publication Date: 2021-01-26
- Inventor: Bada Yoon , John Kang , Wongyu Park
- Applicant: LG Electronics Inc.
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Fish & Richardson P.C.
- Priority: KR10-2017-0147665 20171107
- Main IPC: H05B6/12
- IPC: H05B6/12 ; H05B6/06 ; H02M7/539 ; H05B1/02 ; H05B6/08

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.
Public/Granted literature
- US20190141793A1 INDUCTION HEATING DEVICE AND METHOD FOR DETERMINING LOADED-OBJECT ON THE INDUCTION HEATING DEVICE Public/Granted day:2019-05-09
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