Explain inductorless filters, Electrical Engineering

Assignment Help:

Q. Explain Inductorless Filters

Inductorless (Active) Filters

Filters (used to pass or eliminate certain frequency components of a signal) that are suitable for IC fabrication, but which do not contain inductors, are known as active filters. They have the op amp as a common component. Figure 5.4.13 shows the basic op-amp circuit with frequency-dependent impedances. The voltage gain or voltage transfer function of this circuit is given by

1740_Explain Inductorless Filters.png

with Zi = Ri and Zf = Rf (1/j ωCf ) (i.e., Rf and Cf in parallel). We have a low-pass filter with

1215_Explain Inductorless Filters1.png

1281_Explain Inductorless Filters2.png

952_Explain Inductorless Filters3.png

is sketched in Figure 5.4.14, from which one can see that at the half-power or 3-dB point of fl, the dc value Rf /Ri goes down by a factor of 1/ √ 2 or 0.707. With Zf = Rf and Zi = Ri + 1/j ωCi (i.e., Ri and Ci in series), we have a high-pass filter for which we obtain

1121_Explain Inductorless Filters4.png

1344_Explain Inductorless Filters5.png


Related Discussions:- Explain inductorless filters

Dc motor, You have been given a DC motor to characterize. What three measu...

You have been given a DC motor to characterize. What three measurements are required in order to develop the torque-speed curve and the acceleration curve for the unloaded motor?

Clipper, how to write kvl equation in series clipper circuit without any ba...

how to write kvl equation in series clipper circuit without any battery

Determine and plot the ratios for air, 1.Determine and plot the ratios μ tr...

1.Determine and plot the ratios μ tr /μ and μ ab /μ  from 5 keV to 100 MeV for      (a) air,              (b) water,      (c) muscle,     (d) bone, and      (d) lead

Project, really need help how to run the veener press line for wood-based p...

really need help how to run the veener press line for wood-based panels?

What is cascade, An arrangement of Windows so every window is neatly stacke...

An arrangement of Windows so every window is neatly stacked with only the title bar of every window is showing.

Explain digital control systems, Q. Explain Digital control systems? Si...

Q. Explain Digital control systems? Significant progress has been made in recent years in discrete-data and digital control systems because of the advancesmade in digital compu

Evaluate the diode current id, Question: (a) The piecewise linear appro...

Question: (a) The piecewise linear approximation given in Figure is assumed for the diode in the circuit shown in Figure. Evaluate the diode current ID. (b) The piecew

Describe the operation of 8279, Q. Describe the operation of 8279. And als...

Q. Describe the operation of 8279. And also explain following terms: (i) N key Roll over. (ii) Key board debounce. (iii) FIFO RAM. Ans: 8279 is a programmabl

Control system, I need some help for doing the assignment

I need some help for doing the assignment

Cipper, when i/p voltg is grater than battery diode is clse or open

when i/p voltg is grater than battery diode is clse or open

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd