| 摘要 |
1. Circuit arrangement for the drainage of over-voltages in switching systems comprising a main distributor (HV) and a subscriber module (TB) with electronic SLIC, in which a two-pole electronic current limiter (S1, S2) is in each case arranged in the series arms of the a/b wires in front of the electronic SLIC, characterized in that two in series and oppositely connected power MOSFETs (T1, T1') each are arranged as current limiters and that optoelectronic couplers (01, 01') are used for generating a positive bias voltage at the gate of the power MOSFETs (T1, T1'). |
