US 12,224,660 B2
Electronic apparatus and control method thereof
Duhee Jang, Suwon-si (KR); Wonmyung Woo, Suwon-si (KR); Jeongil Kang, Suwon-si (KR); and Sanghoon Lee, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jan. 9, 2023, as Appl. No. 18/094,769.
Application 18/094,769 is a continuation of application No. PCT/KR2022/012913, filed on Aug. 30, 2022.
Claims priority of application No. 10-2021-0115928 (KR), filed on Aug. 31, 2021.
Prior Publication US 2023/0163680 A1, May 25, 2023
Int. Cl. H02M 1/42 (2007.01); G05F 1/70 (2006.01); H02M 7/06 (2006.01)
CPC H02M 1/4266 (2013.01) [H02M 7/06 (2013.01); G05F 1/70 (2013.01); H02M 1/4208 (2013.01); H02M 1/4225 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An electronic apparatus comprising:
a power factor correction (PFC) circuit; and
a control circuit configured to control an operation of the PFC circuit,
wherein the PFC circuit comprises:
a first inductor part comprising a first inductor connected to one end of an AC voltage part and a first switch connected to the first inductor in series;
a second inductor part comprising a second inductor connected to another end of the AC voltage part and a second switch connected to the second inductor in series;
an output part comprising an output capacitor and a sensing resistor, the output part being connected to the first inductor part and the second inductor part, and the output capacitor and the sensing resistor being connected to each other in series; and
a switching part comprising a third switch connected to the one end of the AC voltage part and a fourth switch connected to the other end of the AC voltage part,
wherein the control circuit identically applies a switch on/off signal to the first switch and the second switch, and selectively applies a switch on/off signal to the third switch or the fourth switch based on a magnitude of an input voltage input through the AC voltage part.