Composite filter circuit

Details Composite filter circuit Composite filter circuit

1975-02-18

1976-03-16

Eddleman, Alfred H.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

179 1GQ, 333 6, 333 70R, G11B 374, H03H 506

Patent

active

039447553

ABSTRACT:
A composite filter circuit comprises a first series resonant circuit connected to a single common resistor, resonating at a first frequency, and exhibiting a low-pass filtering characteristic. A parallel resonant circuit includes one circuit element of the first series resonant circuit and resonates at a second frequency. A second series resonant circuit is connected to the single common resistor, resonating at the second frequency, and exhibiting a highpass filtering characteristic. The first series resonant circuit and the parallel resonant circuit constitute a low-pass filter circuit section. This low-pass filtering characteristic results from the total effects of the low-pass filtering characteristic of the first series resonant circuit, a dip characteristic of the parallel resonant circuit, and, in addition, a decreasing characteristic at the second frequency, due to the second series resonant circuit. The second series resonant circuit constitutes a high-pass or band-pass filter circuit section having a high-pass filtering characteristic resulting from the total effect of the high-pass filtering characteristic of the second series resonant circuit and, in addition, the decreasing characteristic at the first frequency due to the first series resonant circuit.

REFERENCES:
patent: 3201716 (1965-08-01), Giger
patent: 3325753 (1967-06-01), Shearer
patent: 3358246 (1967-12-01), Bensasson
patent: 3843850 (1974-10-01), Takahashi

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-294032