Switched capacitor sampling filter

Details Switched capacitor sampling filter Switched capacitor sampling filter

1988-08-24

1990-03-13

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307520, 330 9, 330107, 333173, 328151, H03K 500, H03B 100

Patent

active

049085794

ABSTRACT:
This filter circuit comprises at least one basic cell (2) arranged as a switched capacitor sampling filter, together with a clock suitable for defining two different states for controlling sampling. According to the main characteristic of the invention, the circuit includes upstream switching means (4) suitable for inverting the polarity of the signal input to the cell during one of the two states, and downstream switching means (6) suitable for inverting the output signal from the cell (2). This makes it possible to transpose the filtering frequency band of the cell (2). The circuit is applicable to manufacturing switched capacitor sampling filters in the form of integrated circuits.

REFERENCES:
patent: 4405899 (1984-01-01), Wurzburg
Gregorian et al., "S.C. High-Pass Filter", IEEE Conference CSC, Pacific Grove, Calif., 11/78, pp. 669-673.
Gregorian, "S.C. Filter Design Using Cascaded Sctions", IEEE Trans. CAS, vol. CAS-27, No. 6, 6/80, pp. 515-521.
Gregorian et al., "MOS Sampled Data Hi-Pass Filters Using SC Integrators", Microelectronics Journal, vol. 11, No. 2, 3/80, pp. 22-25.
Electronics Letters, vol. 21, No. 2, Jan. 1985, pp. 79-80, Stevengage, Herts, Great Britain; H. Baher: "Synthesis of Highpass Switched-Capacitor LDI Filterss".
Electronics Letters, vol. 21, No. 11, May 23, 1985, pp. 484-485, Stevenage, Herts, Great Britain; S. Eriksson: "SC Filter Circuit with Decimation of Sampling Frequency".
Frequenz, vol. 35, No. 3/4, Mar.-Apr. 1981, pp. 93-95, Berlin, Federal Republic of Germany; P. Lutz: "Real Terminations of SC-Filters Using LDI-Integrators".
SC Modified Lossless Discrete Differentiators and Resulting SC Highpass Ladder Filters, Electronic Letters, Jan. 16, 1986, pp. 97-99.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-52775