Title:
POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/027530
Kind Code:
A1
Abstract:
A power supply device according to an embodiment of the present invention is a power supply device for supplying power to a heating element, the power supply device comprising: a power supply unit which supplies power to the heating element; a current sensing unit which measures a current flowing through the heating element according to the power supplied by the power supply unit; a control unit which changes the feedback resistance of the power supply unit on the basis of the current measured by the current sensing unit; and a feedback resistor, the resistance of which is varied according to a control signal of the control unit, wherein the power supplied by the power supply unit varies according to the feedback resistance.
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Inventors:
YU BEOM SUK (KR)
PARK KYU SIC (KR)
PARK KYU SIC (KR)
Application Number:
PCT/KR2022/012750
Publication Date:
March 02, 2023
Filing Date:
August 25, 2022
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H05B3/00; G05F1/46; G05F1/575; H05B1/02
Foreign References:
JP2020201328A | 2020-12-17 | |||
JP2017121157A | 2017-07-06 | |||
KR101548216B1 | 2015-08-31 | |||
KR101623945B1 | 2016-05-24 | |||
KR20210053348A | 2021-05-11 |
Attorney, Agent or Firm:
JIN, Cheon Woong et al. (KR)
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