US 12,463,633 B2
Control device, and switching device
Naoki Shimizu, Matsumoto (JP)
Assigned to FUJI ELECTRIC CO., LTD., Kanagawa (JP)
Filed by FUJI ELECTRIC CO., LTD., Kanagawa (JP)
Filed on Jun. 19, 2023, as Appl. No. 18/337,065.
Application 18/337,065 is a continuation of application No. PCT/JP2022/021431, filed on May 25, 2022.
Claims priority of application No. 2021-115321 (JP), filed on Jul. 12, 2021.
Prior Publication US 2023/0336170 A1, Oct. 19, 2023
Int. Cl. H03K 17/0812 (2006.01); H02M 1/32 (2007.01); H03K 19/0175 (2006.01)
CPC H03K 17/08122 (2013.01) [H02M 1/32 (2013.01); H03K 19/017509 (2013.01); H03K 2217/0027 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A control apparatus comprising:
a protecting unit configured to perform, in response to short circuit occurring in a main switching device, protection operation to restrict current flowing through the main switching device;
a protection operation control unit configured to cause the protecting unit to continue the protection operation until power supply to a driving control unit for performing drive control of the main switching device according to a drive signal stops;
a measuring unit configured to measure a parameter corresponding to a current flowing through the main switching device; and
a detection unit configured to detect that a short circuit has occurred in the main switching device according to the parameter measured by the measuring unit.