Title:
POWER SUPPLY DEVICE AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/085377
Kind Code:
A1
Abstract:
A power supply device is disclosed. This power supply device comprises a PFC circuit and a control circuit for controlling the operation of the PFC circuit. The PFC circuit comprises: a power input unit that receives an AC voltage as an input and rectifies the AC voltage; an inductor having one end connected to a first end of the power input unit; a first switching element which is turned on/off according to a first control signal and has a first end connected to the other end of the inductor; a second switching element which is turned on/off according to a second control signal and has a first end commonly connected to a second end of the inductor and the first end of the first switching element; and an output unit for outputting a DC voltage through an output capacitor with a first end connected to a second end of the second switching element and the other end connected to a second end of the first switching element. The control circuit applies the first control signal to the first switching element and the second control signal to the second switching element, so that the first and second switching elements are alternately turned on.
Inventors:
WOO WONMYUNG (KR)
JANG DUHEE (KR)
KANG JEONGIL (KR)
KIM HYUNGWAN (KR)
LEE SANGHOON (KR)
JANG DUHEE (KR)
KANG JEONGIL (KR)
KIM HYUNGWAN (KR)
LEE SANGHOON (KR)
Application Number:
PCT/KR2023/010885
Publication Date:
April 25, 2024
Filing Date:
July 27, 2023
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H02M1/00; H02M1/38; H02M1/42; H02M7/155
Foreign References:
| US20130235631A1 | 2013-09-12 | |||
| KR101030798B1 | 2011-04-27 | |||
| US20150303790A1 | 2015-10-22 | |||
| CN111669042A | 2020-09-15 | |||
| KR20150044501A | 2015-04-27 |
Attorney, Agent or Firm:
KIM, Tae-hun et al. (KR)
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