US 12,487,287 B2
Method, apparatus and computer-readable medium for diagnosing degree of deterioration of surge protector
Taehyoung La, Yongin-si (KR); and Yoonjoong Kim, Yongin-si (KR)
Assigned to SAMSUNG SDI CO., LTD., Yongin-si (KR)
Filed by SAMSUNG SDI CO., LTD., Yongin-si (KR)
Filed on Jan. 12, 2024, as Appl. No. 18/411,301.
Claims priority of application No. 10-2023-0132458 (KR), filed on Oct. 5, 2023.
Prior Publication US 2025/0116704 A1, Apr. 10, 2025
Int. Cl. G01R 31/327 (2006.01); H02H 9/04 (2006.01)
CPC G01R 31/3275 (2013.01) [G01R 31/3274 (2013.01); H02H 9/04 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An apparatus for diagnosing a surge protector connected to a battery, the apparatus comprising:
a first line connected to a first pole of the surge protector directly connected to one end of the battery and including a first protection element of the surge protector on the first line;
a second line connected to a second pole of the surge protector directly connected to a ground and including a second protection element of the surge protector and a diagnostic resistor on the second line;
a third line connected to a third pole of the surge protector directly connected to another end of the battery and including a third protection element of the surge protector on the third line;
a first switch configured to open and close a line that connects the first line to the second line by being directly connected to one end of each of the first line and the second line;
a second switch configured to open and close a line that connects the second line to the third line by being directly connected to one end of each of the second line and the third line; and
a processor configured to control opening and closing operations of the first switch and the second switch, measure a diagnostic voltage applied to the diagnostic resistor according to the opening and closing operations of the first switch and the second switch, and diagnose the surge protector based on the diagnostic voltage.