Open line detector circuit

Details Open line detector circuit Open line detector circuit

1986-10-30

1987-09-29

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307254, 307360, H03K 524

Patent

active

046970991

ABSTRACT:
This describes an open detector circuit essentially composed of comparator circuits with their outputs coupled to each other and to an open collector driver stage, driven from the output of the comparators. The detector circuit compares the voltages, such as may be present on twisted wire pairs, connected to its line inputs to set a predetermined line voltage output. If any of the input lines connected to the detector circuit becomes open the detector circuit is held in a specified state indicating such opening until it is actively reset. The detector circuit can detect and compare both positive and negative voltages with respect to different voltage sources.

REFERENCES:
patent: 3812431 (1974-05-01), Fry
patent: 4032796 (1977-06-01), Fulkerson
patent: 4237387 (1980-12-01), Devendorf et al.
patent: 4291356 (1981-09-01), Mathieu
patent: 4300063 (1981-11-01), Dunphy et al.
patent: 4306159 (1981-12-01), Wiedmann
patent: 4306270 (1981-12-01), Miller et al.
patent: 4494017 (1985-01-01), Montegari
patent: 4590391 (1986-05-01), Valley

Affiliated with

Also associated with

Rating

Open line detector circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Open line detector circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Open line detector circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1590810