Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1988-03-03
1989-11-28
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307520, 307521, H03K 500, H03B 100
Patent
active
048840360
ABSTRACT:
A loop circuit of a band-pass filter is constituted by connecting two integrating circuits each including a current source and a capacitor connected to an output terminal of the current source so that an input terminal of one of the integrating circuits is connected to an output terminal of the other and an output terminal of one of the integrating circuits is connected to an input terminal of the other. At least two sets of the loop circuits are used, and these loop circuits are coupled by a capacitor (Ck). Two termination resistors are connected to an output terminal of a start loop circuit and an output terminal of an end loop circuit, respectively. A coupling capacitor is connected to an input terminal of the start loop circuit, and an input signal is input to the start loop circuit through the coupling capacitor. An output signal is output from an output terminal of the end loop circuit.
REFERENCES:
"Electronically Tunable Active Filter with Operational Transconductance Amplifiers", IEEE, Transactions on Circuits and Systems, vol. CAS 29, No. 5, May 1982, by Melvar.
"A Mixed LDI--Bilinear Transformation for Biquadratic Switched Capacitor Filters", IEEE, ISCS, May 1982, Mitchael et al.
"Monolithic Filters", IEEE ISSCC, Feb. 1980, Foxall et al.
"Exact Design of Switched--Capacitor Bandpass Filters Using Coupled--Biquad Structures", IEEE Transactions on Circuits and Systems, vol. CAS 27, No. 6, Jun. 1980, Martin et al.
"Sampled Analog Filtering Using Switched Capacitors as Resistor Equivalents", IEEE ISSC, vol. SC--12, No. 6, Dec. 1978, Caves et al.
"Micropower Switched Capacitor Biquadratic Cell", IEEE, JSSC, vol. SC--17, No. 3, Jun. 1982, Krummenacher.
IEEE J. Solid--State, vol. SC--19, pp. 939-948, "High Frequency CMOS Continuous--Time Filters"; P. R. Gragy et al.; 1984.
Koyama Mikio
Tanimoto Hiroshi
Kabushiki Kaisha Toshiba
Miller Stanley D.
Roseen Richard
LandOfFree
Band-pass filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Band-pass filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Band-pass filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-584721