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US 12,750,926 B2Granted
Induction heating cooktop and wireless indicator for indicating operation state thereof
AssigneeLG Electronics Inc.
InventorsYounghwan Kwack, Seongho Son, Seonho Jeon, Chuhyoung Cho, Jongseong Ji
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Abstract
The present disclosure includes an induction heating cooktop and a wireless indicator for indicating an operation state of the cooktop, the wireless indicator comprising: a closed loop coil; and a light-emitting device driven by a voltage which is induced in the closed loop coil through an induced magnetic field generated by a working coil of the cooktop.
Claims7
An induction heating type cooktop comprising:
- a power supply configured to supply alternating current (AC) voltage;
- a rectifier configured to convert the supplied AC voltage into a direct current (DC) voltage;
- a working coil configured to generate an induced magnetic field when current flows;
- an inverter configured to supply current to the working coil based on the converted DC voltage;
- a processor configured to control the inverter;
- and
- a wireless indicator indicating an operation state of the cooktop,
- wherein the wireless indicator includes:
- a closed loop coil;
- and
- a light emitting device driven by a voltage induced in the closed loop coil by the induced magnetic field generated in the cooktop,
- wherein, upon receiving a heating end command, the processor is configured to determine whether a temperature of a top plate of the cooktop is greater than or equal to a reference temperature, and control the inverter to supply current to the working coil such that the wireless indicator is driven while the temperature of the top plate is greater than or equal to the reference temperature.
9 more elements
Dependencies are inferred from the claim text.