发明名称 |
Turn-off control circuit for a gate turn-off thyristor |
摘要 |
A turn-off control circuit for a gate turn-off thyristor is used in a state where one end of an inductive load is connected therewith on the cathode side. The turn-off control circuit includes a first turning-off transistor, which takes-out electric current through the gate at the first stage of the turn-off operation of the gate turn-off thyristor, and a second turning-off transistor, which takes-out electric current through the gate at the second stage of the turn-off operation of the gate turn-off thyristor so as to surely effect the turn-off operation.
|
申请公布号 |
US4758942(A) |
申请公布日期 |
1988.07.19 |
申请号 |
US19870105810 |
申请日期 |
1987.10.08 |
申请人 |
HITACHI LTD.;HITACHI HARAMACHI SEMI-CONDUCTOR. LTD. |
发明人 |
WADA, MASAYUKI;SHIINA, CHOOJI;KARIYA, TADAKI;SHIMURA, TATSUO |
分类号 |
H03K17/73;H03K17/732;(IPC1-7):H02M1/08 |
主分类号 |
H03K17/73 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|