SCHALTUNGSANORDNUNG ZUM UEBERWACHEN EINES STROMKREISES AUF UNTERBRECHUNG.

摘要

The monitoring circuit for a load resistance (RL) in series with a transistor switch (TS1) uses a relatively small test current provided by a parallel source (SQ) with measurement of the output voltage across the transistor for detection of a high potential to allow an interruption to be indicated. The transistor is coupled to a regulator (DV) which maintains a constant voltage drop across the transistor due to the load current, by supplying the transistor with a corresponding control . An interruption is indicated when the control voltage rises above a given level, or is outside a given range.