IP Library Granted Patent US 12672675
Granted Patent B2
US 12672675 · App. 18/031,938 · Granted Jul 7, 2026

Method of generating aerosol and electronic device for performing the same

Inventors: Hyung Jin Bae (Daejeon, KR); Wonyoung Ko (Daejeon, KR); Giho Son (Daejeon, KR)
Assignee: KT&G CORPORATION
A24F40/465H02M7/493
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Quick Facts
Patent No.
US 12672675
App. No.
18/031,938
Granted
Jul 7, 2026
Kind
B2
Abstract

According to one embodiment, in order to heat an aerosol-generating substrate, eddy currents can generated in a susceptor of the aerosol-generating substrate by generating synthesized alternating currents having different frequencies and supplying the synthesized alternating currents to a coil surrounding the aerosol-generating substrate.

Claims (34)

1 . An electronic device comprising:

a controller configured to control an operation of the electronic device;

an inverter unit configured to supply a current to a heater; and

the heater configured to heat at least a portion of an aerosol generating substrate inserted into the electronic device using the current,

wherein the current has a simultaneous dual-frequency (SDF), and

wherein the inverter unit comprises:

a rectifier configured to adjust an output of a direct current (DC) to be supplied to a first inverter, wherein the first inverter is configured to generate a first alternating current (AC) having a first frequency based on the DC;

a second inverter configured to generate a second AC having a second frequency based on the DC; and

a filter configured to generate the current by synthesizing the first AC and the second AC.

2 . The electronic device of claim 1 ,

wherein an eddy current is generated in the at least a portion of the aerosol generating substrate by the current, and

wherein the aerosol generating substrate is heated by the eddy current.

3 . The electronic device of claim 2 ,

wherein a first portion of the aerosol generating substrate is heated by a first component of the current corresponding to the first AC, and

wherein a second portion of the aerosol generating substrate is heated by a second component of the current corresponding to the second AC.

4 . The electronic device of claim 1 ,

wherein the first AC has a medium frequency (MF), and

wherein the second AC has a high frequency (HF).

5 . The electronic device of claim 1 , wherein the heater comprises a coil formed to be wound around the aerosol generating substrate.

6 . A method of controlling an electronic device, the method comprising:

adjusting an output of a direct current (DC) supplied to an inverter unit of the electronic device;

generating a first alternating current (AC) having a first frequency based on the DC;

generating a second AC having a second frequency based on the DC;

generating a current by synthesizing the first AC and the second AC; and

heating at least a portion of an aerosol generating substrate inserted into the electronic device by supplying the current to a heater of the electronic device,

wherein the current has a simultaneous dual-frequency (SDF).

7 . The method of claim 6 ,

wherein an eddy current is generated in the at least a portion of the aerosol generating substrate by the current, and

wherein the aerosol generating substrate is heated by the eddy current.

8 . The method of claim 7 ,

wherein a first portion of the aerosol generating substrate is heated by a first component of the current corresponding to the first AC, and

wherein a second portion of the aerosol generating substrate is heated by a second component of the current corresponding to the second AC.

9 . The method of claim 8 , wherein the heater comprises a coil formed to be wound around the aerosol generating substrate.

10 . A non-transitory computer-readable storage medium storing instructions that are executable by a processor to perform the method of claim 6 .