Circuit arrangement for controlling a load and for recognizing a

Details Circuit arrangement for controlling a load and for recognizing a Circuit arrangement for controlling a load and for recognizing a

1993-08-09

1996-10-29

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

361 88, 361 92, 361115, H02H 300

Patent

active

055702597

ABSTRACT:
A circuit arrangement for controlling a load and for recognizing an interruption in a line to the load includes a measuring resistance connected in series with the load, a device for varying a resistance value of the measuring resistance as a function of a current passing through the load, and a diagnostic device for generating a diagnosis signal if a voltage drop, producible across the measuring resistance by a load current drops below a threshold value.

REFERENCES:
patent: 4375073 (1983-02-01), Glogolja et al.
patent: 5057719 (1991-10-01), Niedra

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