Power converter

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Power converter

申请(专利)号： JP20170143540

专利号： JP6548698B2 主分类号： H02M1/08

申请权利人：三菱電機株式会社

公开国代码： JP 优先权国家： JP

摘要：

To provide an electric power converter that prevents erroneous detection of overcurrent.SOLUTION: An overcurrent calculation unit 6 calculates a lower limit value of an electric current to be determined as an overcurrent corresponding to inputted voltage detection parameters Pa and the

temperature of a semiconductor switch 3 detected by a temperature detection unit 5, on the basis of the voltage detection parameters Pa that represent the

properties of components of a voltage detection unit 4 and a correlation between the temperature of the semiconductor switch 3 and the electric current of the semiconductor switch 3. A threshold level calculation unit 9 calculates a voltage corresponding to the lower limit value of the electric current as an overcurrent determination threshold level. A comparator unit 7 compares the

申请日： 2017-07-25 公开公告日： 2019-07-24

分类号： H02M1/08;

H02M1; H03K17/08; H03K17/687; H03K17/082 发明设计人：北村達也;

武藤貴哉; 秋田健一申请国代码： JP

优先权： 20170725 JP

2017143540

摘要附图：

overcurrent determination threshold level with the voltage of the semiconductor switch 3.SELECTED DRAWING: Figure 1 主权项：

電源と負荷とを接続している経路に接続された半導体スイッチと、

上記半導体スイッチに印加される電圧を検出する電圧検出部と、

上記半導体スイッチの温度を検出する温度検出部と、

上記