| 摘要 |
A switching board (10) includes: a control circuit board (20) that has, in a first surface thereof, a control circuit (22B), a connection circuit (22A), a first mounting window (24A), and a second mounting window (24B); a circuit structure (11) including an input bus bar (30) and an output bus bar (40) that are arranged in a second surface of the control circuit board (20); and a first semiconductor switching element (60A) and a second semiconductor switching element (60B). The first semiconductor switching element (60A) is arranged inside the first mounting window (24A). The drain terminal (62), the source terminal (63), and the gate terminal (64) of the first semiconductor switching element (60A) are connected respectively to the input bus bar (30), the connection circuit (22A), and the control circuit (22B). The second semiconductor switching element (60B) is arranged inside the second mounting window (24B). The drain terminal (62), the source terminal (63), and the gate terminal (64) of the second semiconductor switching element (60B) are connected respectively to the output bus bar (40), the connection circuit (22A), and the control circuit (22B). |
