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发明公开
CN102948076A 具有串联布置的JFET的开关装置 有权

具有串联布置的JFET的开关装置
摘要：
本发明涉及一种开关装置，用于切换第一端子与第二端子之间的电流，包括至少两个JFET(J1-Jn)的串联电路，其中上方JFET(J2-Jn)串联连接到最下方JFET(J1)，并且其中用于稳定JFET(J1-Jn)的栅极电压的线路网络连接在第二端子(2)和第一端子(1)之间。一个附加电路（5）连接在每个上方JFET(J2-Jn)的栅极端子(GJ2,GJ3...GjN)与线路网络的二极管(DAV)的对应的阴极端子之间。在接通期间以及接通状态中，所述附加电路使各个栅极端子的电势高于对应的源极端子的电势。
摘要（英）：

The invention relates to a switching device for switching a current between a first connection (1) and a second connection (2) comprising a series circuit of at least two JFETs (J1-Jn), with further JFETs (J2-Jn), which are connected in series to a lowest JFET (J1), and wherein a wiring network for stabilizing the gate voltages of the JFETs (J1-Jn) is connected between the second connection (2) and the first termination (1). One additional circuit (5) is connected between each gate connection (GJ2, GJ3... GjN) of the further JFETs (J2-Jn) and associated cathode connections of diodes (DAV) of the wiring network. During switch-on and in the switched-on state, said additional circuit keeps the potential of the respective gate connection higher than the potential of the associated source connection.

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