Level shifting and filtering circuit

Details Level shifting and filtering circuit Level shifting and filtering circuit

1980-10-20

1982-09-21

Heyman, John S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 88, 330107, H03K 1332, H03F 345

Patent

active

043509568

ABSTRACT:
A circuit is disclosed which performs two functions: (1) it develops a D.C. voltage signal which is proportional to the difference between the D.C. voltage components of a first and a second voltage, each comprising a D.C. voltage component and an A.C. voltage component impressed thereon, and (2) it filters the A.C. voltage components of both the first and second voltages. This circuit comprises cascade-connected first and second networks, each comprising an operational amplifier, with the output of the first network coupled to the input of the second network. Said first voltage is supplied as an input to the first network, and said second voltage is supplied as an input to the second network. The second network develops a D.C. output signal that is representative of the difference between the D.C. voltage components of the first and second voltages.

REFERENCES:
patent: 4207543 (1980-06-01), Izakson et al.
patent: 4208635 (1980-06-01), Fazakerly et al.
patent: 4275453 (1981-06-01), Wagner
patent: 4315229 (1982-02-01), Greaves et al.
Solid-State Devices Manual, RCA Solid-State Division, Somerville, N.J., 08876, Copyright 1975 by RCA Corporation, paragraph entitled "General-Purpose Operational Voltage Amplifier (OVA)", pp. 195-199.

Affiliated with

Also associated with

Rating

Level shifting and filtering 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 Level shifting and filtering circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Level shifting and filtering circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2078224