| 摘要 |
A three-terminal insulated-gate power electronic device includes a first, bipolar power transistor and a second, insulated-gate transistor forming a darlington pair. The bipolar power transistor has a first electrode, a second electrode, and a control electrode respectively connected to a first electrode of the insulated-gate transistor and to a first external terminal of the three-terminal device, to a second external terminal of the three-terminal device, and to one second electrode of the insulated-gate transistor. The three-terminal device further includes switching means connected between the control electrode and the second electrode of the bipolar power transistor, and control circuit means connected to another second electrode of the insulated-gate transistor and controlling the switching means to switch it from a highly-conducting condition for low values of a current flowing through the first and second external terminals to a non-conducting condition for high values of the current flowing between the first and second external terminals.
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