公开(公告)号：US11600448B2

公开(公告)日：2023-03-07

申请号：US16438707

申请日：2019-06-12

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Roman Hamerski ,  Carsten Riefle ,  Minghua Tang

IPC分类号： H01G4/38 ,  H01G4/228

摘要： A capacitor has at least two capacitor units, wherein a first capacitor unit and a second capacitor unit of the at least two capacitor units have opposite polarities.

公开(公告)号：US10381949B2

公开(公告)日：2019-08-13

申请号：US16050636

申请日：2018-07-31

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Roman Hamerski ,  Carsten Riefle

IPC分类号： H02M7/219 ,  H02M1/088 ,  H02M7/493 ,  H02M7/23 ,  H02M7/5387

摘要： A power converter including a bridge circuit is provided. The power converter is designed to convert a direct current of a current source into an alternating current and/or an alternating current into a direct current. The bridge circuit includes a first parallel circuit assembly, which is coupled to a higher potential of the current source and which has a plurality of switching elements connected in parallel, a second parallel circuit assembly, which is coupled to a lower potential of the current source and which has a plurality of switching elements connected in parallel, and a plurality of taps, which are each coupled to the first and second parallel circuit assemblies. Each switching element of the first and the second parallel circuit assemblies has two conducting connections and a control connection, which controls the flow of current from one conducting connection to the other conducting connection. The power converter also includes a control device, which is designed in such a way that, when the power converter is operated at partial load, at least one switching element of a parallel circuit assembly is controlled in such a way that said switching element is not switched on during at least one cycle. The switching elements of a parallel circuit assembly are thermally coupled to one another.