| 摘要 |
PROBLEM TO BE SOLVED: To provide a gate commuting turn-off thyristor module in which the resistance component and the inductance component in the route of a gate current are reduced and which is assembled easily. SOLUTION: The gate terminal board 1 of a GCT thyristor 90, the connection board 70 of a driving device and a cathode electrode plate 10 are sandwiched between a pair of metal rings 7A, 7C which are tightened by a screw 8. The cathode electrode plate 10 is connected to the cathode post electrode 31 of the GCT thyristor 90. The screw 8 is insulated electrically from the metal ring 7A and the gate terminal board 1 by an insulator 9. By this constitution, the gate terminal board 1 and the cathode electrode plate 10 are connected direclty to a first metallized layer 5 and a second metallized layer 6 which are arranged and installed on both main faces of the connection board 70. |
