US 12,294,305 B2
Multi-phase power converter and control method thereof
Jungmin Park, Gyeonggi-do (KR); and Sunghyun Lim, Gyeonggi-do (KR)
Assigned to HL Mando Corporation, Gyeonggi-do (KR)
Filed by HL MANDO CORPORATION, Gyeonggi-do (KR)
Filed on Mar. 18, 2023, as Appl. No. 18/123,258.
Claims priority of application No. 10-2022-0181658 (KR), filed on Dec. 22, 2022.
Prior Publication US 2024/0213875 A1, Jun. 27, 2024
Int. Cl. H02M 3/158 (2006.01); H02M 1/32 (2007.01)
CPC H02M 3/1584 (2013.01) [H02M 1/327 (2021.05); H02M 3/1582 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A multi-phase power converter, comprising:
a plurality of power conversion units configured to perform power conversion operations for each phase; and
a controller configured to control the plurality of power conversion units by differentially distributing currents of the respective power conversion units based on a switch temperature obtained from each of the plurality of power conversion units,
wherein the controller obtains the switch temperature in each of the plurality of power conversion units through an NTC temperature sensor attached to a switch of the power conversion unit,
wherein the controller controls the plurality of power conversion units by differentially distributing the currents of the respective power conversion units based on the switch temperature and a resistance characteristic curve for each temperature corresponding to the NTC temperature sensor, and
wherein the controller controls the plurality of power conversion units by differentially distributing the currents of the respective power conversion units based on the switch temperature and the resistance characteristic curve for each temperature when the switch temperature is greater than a preset threshold temperature.