Title:
INDUCTION HEATER AND METHOD FOR CONTROLLING SAME
Document Type and Number:
WIPO Patent Application WO/2024/039126
Kind Code:
A1
Abstract:
This induction heater having an improved circuit configuration may comprise: a heating coil; a rectifier circuit which rectifies AC input power; a power factor correction (PFC) circuit which is connected to the rectifier circuit; a DC link capacitor which is connected to the PFC circuit; and an inverter circuit which is connected to the DC link capacitor and applies a driving current to the heating coil, wherein the PFC circuit comprises: a first inductor which is connected to an output node of the rectifier circuit; a second inductor which is connected to the output node of the rectifier circuit and is connected in parallel to the first inductor; a first diode which is connected to the first inductor and the DC link capacitor; a second diode which is connected to the second inductor and the DC link capacitor; a first switching element which is connected to the first inductor and a ground node; and a second switching element which is connected to the second inductor and the ground node.
Inventors:
KANG HONGJOO (KR)
LEE NOKHAENG (KR)
LEE JEAWON (KR)
HAM MYOUNGJIN (KR)
LEE NOKHAENG (KR)
LEE JEAWON (KR)
HAM MYOUNGJIN (KR)
Application Number:
PCT/KR2023/011630
Publication Date:
February 22, 2024
Filing Date:
August 08, 2023
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H05B6/12; H02M1/42; H02M5/458; H05B6/06
Foreign References:
| JP2020053137A | 2020-04-02 | |||
| KR20180078772A | 2018-07-10 | |||
| KR20180080462A | 2018-07-12 | |||
| KR20210060952A | 2021-05-27 | |||
| KR20170100096A | 2017-09-04 |
Attorney, Agent or Firm:
SELIM INTELLECTUAL PROPERTY LAW FIRM (KR)
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