公开(公告)号：US06278314B1

公开(公告)日：2001-08-21

申请号：US09206969

申请日：1998-12-08

申请人： Gunnar Asplund ,  Bo Danielsson ,  Willy Hermansson ,  Peter Lundberg ,  Christer Ovrén ,  Anders Åberg

发明人： Gunnar Asplund ,  Bo Danielsson ,  Willy Hermansson ,  Peter Lundberg ,  Christer Ovrén ,  Anders Åberg

IPC分类号： H03K1708

CPC分类号： H02H7/1206 ,  H02M1/088 ,  H03K17/107 ,  Y02B70/1483

摘要： An electric circuit comprises a plurality of high power switching services connected in series and adapted to be controlled to be all conducting or blocking substantially simultaneously act together as a single switch and each holding a part of a high voltage to be held by the switch in the blocking state of the switching devices. Each switching device has an avalanche diode of SiC connected in anti-parallel therewith and adapted to start to conduct current when reverse biased as of a predetermined voltage limit for preventing that the voltage across the respective switching device exceeds such limit.

摘要翻译： 一种电路包括多个串联连接并适于被控制为全部导电或阻挡的高功率开关业务，其基本上同时作为单个开关起作用，并且每个保持一部分被开关保持的高电压 阻塞状态的开关器件。 每个开关装置具有与其并联连接的SiC的雪崩二极管，并且适于在反向偏压达到预定电压极限时开始导通电流，以防止相应的开关装置两端的电压超过这种极限。