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公开(公告)号：US20170118805A1
公开(公告)日：2017-04-27
申请号：US15331112
申请日：2016-10-21
Applicant: Samsung Electronics Co., Ltd.
Inventor： Dohyuk HA , Jungyub LEE , Jun Sig KUM , YoungJu LEE , Goudelev ALEXANDER
Abstract: A low-frequency heating apparatus is provided. The low-frequency heating apparatus includes a signal generator configured to generate an operation frequency for inducing a current through a coil unit surrounding an internal area of a housing of the heating apparatus, a power amplifier configured to amplify power of the operation frequency to a predetermined level and transmit the amplified operation frequency to the coil unit, the coil unit configured to be energized to heat an object provided inside the housing through a magnetic field generated by the current, and at least one processor configured to monitor an impedance value of the coil unit resonating at the operation frequency and control a resonant operation of the coil unit based on the impedance value of the coil unit and an impedance value of the power amplifier.
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