US 12,334,823 B2
DC-DC buck converter and operating method thereof
Sungmin Yoo, Seoul (KR); Hyungmin Lee, Seoul (KR); Woojoong Jung, Seoul (KR); Taehwang Kong, Suwon-si (KR); Junhyeok Yang, Seoul (KR); and Yunho Lee, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, Seoul (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on May 31, 2022, as Appl. No. 17/828,829.
Claims priority of application No. 10-2021-0070890 (KR), filed on Jun. 1, 2021.
Prior Publication US 2022/0385186 A1, Dec. 1, 2022
Int. Cl. H02M 3/158 (2006.01)
CPC H02M 3/158 (2013.01) 20 Claims
OG exemplary drawing
 
1. A DC-DC buck converter for generating an output voltage by stepping down an input voltage, the DC-DC buck converter comprising:
a converting circuit including a plurality of transistors, a first capacitor, a second capacitor, and an inductor, the converting circuit being configured to form a current path that varies according to a plurality of modes and a plurality of phases; and
a control circuit configured to:
determine a mode of the converting circuit, from among the plurality of modes, according to a first amplitude of the input voltage and a second amplitude of the output voltage, and
determine an ON/OFF state of each transistor of the plurality of transistors according to the determined mode and a phase from among the plurality of phases.