公开(公告)号：EP2427965B1

公开(公告)日：2016-11-23

申请号：EP10718030.9

申请日：2010-04-19

申请人： Fronius International GmbH

发明人： PIRCHENFELLNER, Jürgen ,  ACHLEITNER, Günter ,  HOLZINGER, Stephan ,  PAMMER, Walter

IPC分类号： H03K17/16 ,  H03K17/687 ,  H02M1/38 ,  H03K17/567 ,  H03K19/003

CPC分类号： H03K17/165 ,  H02M1/38 ,  H03K17/567 ,  H03K17/6871 ,  H03K19/00361

公开(公告)号：EP2427965A1

公开(公告)日：2012-03-14

申请号：EP10718030.9

申请日：2010-04-19

申请人： Fronius International GmbH

发明人： PIRCHENFELLNER, Jürgen ,  ACHLEITNER, Günter ,  HOLZINGER, Stephan ,  PAMMER, Walter

IPC分类号： H03K17/16 ,  H03K17/687 ,  H02M1/38 ,  H03K17/567 ,  H03K19/003

CPC分类号： H03K17/165 ,  H02M1/38 ,  H03K17/567 ,  H03K17/6871 ,  H03K19/00361

摘要： The invention relates to a method and to an apparatus for protecting transistors (S1, S3; S2, S4) arranged in at least one path, wherein transistors (S1, S3; S2, S4) connected in series are arranged in a path (2) and an input voltage (Ue) is applied to them, and the transistors (S1, S3; S2, S4) of a path are alternately switched between a conductive state and a blocking state in order to generate an output voltage (Ua) at the center of the path. In order to prevent both transistors (S1, S3; S2, S4) of a path from triggering, the blocking state of the second transistor (S3; S4) of the path is checked before switching a transistor (S1; S2) into the conductive state, and the switch is released by way of a signal generated during the check.