US 11,699,951 B2
DC-DC converter and method for controlling the same
Yoo Jong Lee, Osan-si (KR); Ji Woong Jang, Gwangmyeong-si (KR); Ki Jong Lee, Hwaseong-si (KR); and Sang Cheol Shin, Suwon-si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on Aug. 23, 2021, as Appl. No. 17/409,308.
Claims priority of application No. 10-2020-0149452 (KR), filed on Nov. 10, 2020.
Prior Publication US 2022/0149733 A1, May 12, 2022
Int. Cl. H02M 3/07 (2006.01); H02M 1/32 (2007.01); H02M 3/158 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/07 (2013.01) [H02M 1/0095 (2021.05); H02M 1/32 (2013.01); H02M 3/158 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A DC-DC converter, comprising:
a first capacitor;
a first switching element, a second switching element, a third switching element, and a fourth switching element sequentially connected to one another in series between both ends of the first capacitor;
a second capacitor having both ends connected at a connection node of the first switching element and the second switching element and a connection node of the third switching element and the fourth switching element, respectively; and
a controller configured to determine whether an overvoltage is applied to both ends of the first to fourth switching elements, respectively, based on a first sensed voltage obtained by sensing a voltage applied to the first capacitor and a second sensed voltage obtained by sensing a voltage applied to the second capacitor.