| 摘要 |
<p>PHN. 9691 10 Telephone subscriber's line interruption arrangement comprising a series arrangement of a semiconductor interrupter contact and a control circuit connected between a first line terminal and a second lines terminal, in which a subscriber's line can be connected to the line terminals and via a hook contact. In order to ensure that at low line currents, that is to say in the case of long to very long subscriber's lines, the voltage drop across the interrupter contact is kept very low, the control circuit comprises an output circuit which ensures that the voltage at the control electrode of the semiconductor interrupter contact is at least equal to the voltage at the first terminal.</p> |
