Download Active Filter Design by Allan Waters (auth.) PDF

By Allan Waters (auth.)

Show description

Read or Download Active Filter Design PDF

Best design books

Hydrological Forecasting: Design and Operation of Hydrological Forecasting Systems

Some time past 20 years a number of actions within the box of water assets administration were greater and intensified. This . upward thrust had not less than autonomous purposes. the 1st and major one was once the continuously expanding water call for for agriculture and on one facet and the fear concerning the deteriorating surroundings at the different.

Konzeption von Kernnetzknoten: Referenzmodelle für Design und Implementierung

Durch eine stetig steigende Komplexität der Informationstechnologien werden die Architekten von Informationssystemen kontinuierlich vor neue Probleme gestellt. Eine große Zahl der Implementierungen wird vom Aufbau und layout des Netzwerks bestimmt, d. h. von der Positionierung der Server und der aktiven Netzwerkkomponenten.

Additional resources for Active Filter Design

Sample text

A Butterworth low-pass filter has the following specifications: pass band up to 100 Hz with 3 dB of loss, stop band to be at least 80 dB down at 1 kHz. Calculate the order of the filter, the roots of the Butterworth polynomial, and the values of the pass-band and stop-band loss. [Ans. 2. Obtain the normalised Chebyshev coefficients for a fourth-order, 1 dB ripple width, low-pass filter. [Ans. 3. 5 kHz. Calculate the order of the filter and the Chebyshev polynomial. Check also the values of the pass-band and stop-band loss.

Obtain the relationship between the output and the two inputs. Assume that the opamps used have high open-loop gains and input impedance values. 15) Since a major assumption is that the gains of the op-amps are very high, then we may quote the following voltages: Vb = V2 , Va = V 1 , Ve = Vr. 17) The resistor R 1 is usually made variable in order to adjust the gain. A typical instrumentation op-amp would have A 0 = 2 x 10 5 , Ri = 10 12 ohms. Active Filter Design 36 This circuit is an example of a differential-in and differential-out (A 1 , A 2 ) amplifier with negative feedback and equalised amplification.

5 Obtain the order of the filter and confirm that the stop band requirement is fulfilled. 4 dB Note that this fourth-order Chebyshev circuit satisfies the requirements better than the previously considered sixth-order Butterworth circuit, at the expense of some pass-band ripple. 5 dB up to 3 kHz stop-band minimum to be 60 dB at 30kHz Calculate the order of the filter and the roots of the polynomial. 5 dB, A MIN > 60 dB. 35. a= .!.. 3. It should again be noted that we have also obtained important design coefficients which will later be used in the design of filters having specified ripple widths.

Download PDF sample

Rated 4.52 of 5 – based on 21 votes