Critical deviation detection of slowly varying signal - has probe picking up voltage of battery terminal producing binary signal when level changes

摘要

Circuit for detecting a definitive critical deviation of a slowly varying signal from a reference level. It is intended to check the terminal voltage of a battery. The circuit incorporates a probe (2) which picks up the battery voltage. The probe will produce a binary signal when the battery voltage drops below a given level. The output of the converter is fed to a sequence circuit (4), whose output is fed to a locking circuit (5). The sequence circuit will have an output when a predetermined number of successive binary siganls of the same types are received. The locking circuit produces an output which is an indication of the deviation.