Title:
ELECTRONIC APPARATUS AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/033491
Kind Code:
A1
Abstract:
An electronic apparatus is disclosed. The electronic apparatus comprises: a power factor correction (PFC) circuit; and a control circuit for controlling the operation of the PFC circuit, wherein the PFC circuit comprises: a first inductor unit comprising a first inductor connected to one end of an AC voltage unit and a first switch connected in series with the first inductor; a second inductor unit comprising a second inductor connected to the other end of the AC voltage unit and a second switch connected in series with the second inductor; an output unit connected to each of the first inductor unit and the second inductor unit and comprising an output capacitor and a sensing resistor connected in series with each other; and a switching unit comprising a third switch connected to one end of the AC voltage unit and a fourth switch connected to the other end of the AC voltage unit, and wherein the control circuit applies the same on-off signal to each of the first switch and the second switch, and selectively applies an on-off signal to either of the third switch or the fourth switch on the basis of the magnitude of an input voltage inputted through the AC voltage unit.
Inventors:
JANG DUHEE (KR)
WOO WONMYUNG (KR)
KANG JEONGIL (KR)
LEE SANGHOON (KR)
WOO WONMYUNG (KR)
KANG JEONGIL (KR)
LEE SANGHOON (KR)
Application Number:
PCT/KR2022/012913
Publication Date:
March 09, 2023
Filing Date:
August 30, 2022
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H02M1/42; G05F1/70; H02M7/217
Foreign References:
| JP2016171617A | 2016-09-23 | |||
| EP2882083A1 | 2015-06-10 | |||
| JP2011091927A | 2011-05-06 | |||
| US8199541B2 | 2012-06-12 | |||
| KR20150044333A | 2015-04-24 |
Attorney, Agent or Firm:
KIM, Tae-hun et al. (KR)
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