US 12,088,187 B2
Power supply device and method for controlling same
Jehyung Cho, Suwon-si (KR); Ganghyun Kim, Suwon-si (KR); Dongjo Shin, Suwon-si (KR); Daesung Kang, Suwon-si (KR); Sungin Park, Suwon-si (KR); Hyojea Shin, Suwon-si (KR); and Teaho 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. 17, 2023, as Appl. No. 18/155,456.
Application 18/155,456 is a continuation of application No. PCT/KR2021/011671, filed on Aug. 31, 2021.
Claims priority of application No. 10-2020-0133760 (KR), filed on Oct. 15, 2020.
Prior Publication US 2023/0155476 A1, May 18, 2023
Int. Cl. H02M 5/458 (2006.01); H02M 1/00 (2006.01); H02M 1/36 (2007.01); H02M 5/453 (2006.01); H02M 7/72 (2006.01); H02P 27/06 (2006.01)
CPC H02M 1/0045 (2021.05) [H02M 1/36 (2013.01); H02M 7/72 (2013.01); H02P 27/06 (2013.01); H02M 5/453 (2013.01); H02M 5/458 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A power supply device comprising:
a rectifier circuit configured to rectify an inputted alternating current power;
a capacitor circuit comprising a first capacitor and a second capacitor which are connected in series, the capacitor circuit configured to smooth the alternating current power rectified in the rectifier circuit;
an inverter configured to convert an output power of the capacitor circuit to a power of a preset size and outputting same;
a switch configured to selectively connect a middle node of the first capacitor and the second capacitor and an end of a source of the alternating current power;
a sensor configured to detects a size of the alternating current power; and
a controller configured to:
confirm a power mode of the alternating current power based on an output value of the sensor, and
control the switch so that the capacitor circuit selectively performs double amplification for rectified alternating current power based on the confirmed power mode.