US 12,170,489 B2
Device for compensating for current or voltage
Jin Gook Kim, Ulsan (KR); and Sang Yeong Jeong, Ulsan (KR)
Assigned to EM CORETECH INC., Ulsan (KR); and UNIST( ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY), Ulsan (KR)
Filed by EM CORETECH INC., Ulsan (KR); and UNIST( ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY), Ulsan (KR)
Filed on Dec. 27, 2023, as Appl. No. 18/396,750.
Application 18/396,750 is a continuation of application No. 17/450,361, filed on Oct. 8, 2021, granted, now 11,901,832.
Application 17/450,361 is a continuation in part of application No. PCT/KR2020/005180, filed on Apr. 17, 2020.
Claims priority of application No. 10-2019-0045138 (KR), filed on Apr. 17, 2019; application No. 10-2019-0047518 (KR), filed on Apr. 23, 2019; application No. 10-2019-0052371 (KR), filed on May 3, 2019; application No. 10-2019-0053238 (KR), filed on May 7, 2019; application No. 10-2019-0057607 (KR), filed on May 16, 2019; application No. 10-2019-0114374 (KR), filed on Sep. 17, 2019; application No. 10-2019-0114375 (KR), filed on Sep. 17, 2019; application No. 10-2020-0026120 (KR), filed on Mar. 2, 2020; application No. 10-2020-0032851 (KR), filed on Mar. 17, 2020; application No. 10-2020-0182641 (KR), filed on Dec. 23, 2020; application No. 10-2020-0182642 (KR), filed on Dec. 23, 2020; application No. 10-2020-0183864 (KR), filed on Dec. 24, 2020; and application No. 10-2021-0024761 (KR), filed on Feb. 24, 2021.
Prior Publication US 2024/0186910 A1, Jun. 6, 2024
Int. Cl. H02M 1/12 (2006.01); H02M 1/32 (2007.01); H02M 5/293 (2006.01)
CPC H02M 5/293 (2013.01) [H02M 1/32 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A current compensating device configured to actively compensate for a first current input as a common mode current from a first device, the current compensating device comprising:
at least two or more high current paths through which a second current supplied from a second device is transmitted to the first device;
a first balancing unit configured to adjust balancing of the first current between the at least two or more high current paths;
a sensing unit configured to detect the first current, of which balancing has been adjusted by the first balancing unit, and generate an output signal corresponding to a detection result, on the at least two or more high current paths;
an amplifying unit configured to amplify the output signal to generate an amplified output signal;
a compensating unit configured to generate a compensation current on the basis of the amplified output signal; and
a compensating capacitor unit configured to provide a path through which the compensation current flows to each of the at least two or more high current paths,
wherein the first current is a current of a first frequency band, and
the first balancing unit includes one or more high current path connection units configured to provide paths through which the current of the first frequency band flows between the at least two or more high current paths.