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

Multiplexers and flip flops, Decoders and multiplexers are termed, medium s...

Decoders and multiplexers are termed, medium scale integration (MSI) devices; this term implies that the device is complex in construction and usually its operation as well. Below

Explain the basic concepts in memory interfacing, Explain the Basic concept...

Explain the Basic concepts in memory interfacing The primary function of memory interfacing is that the microprocessor should be able to read from and write into a given regist

Emf, State and explain three factors upon which the induced electromotive f...

State and explain three factors upon which the induced electromotive force depends

Obstacle avoidance Arduino robot, we work as a group on Automoted guided ve...

we work as a group on Automoted guided vehicles project, with 2 vehicles one is leading and the other is guided and following the first one, i was assigned to write an obstacle avo

Determine excitation voltage and power angle, A 500KVA, 6 pole, 500v, 3 pha...

A 500KVA, 6 pole, 500v, 3 phase, wye-connected synchronous generator has a synchronous impedance of 0.1 + j1.5 ohms per phase. If the generator is driven at 1000 r.p.m., what is th

Solution manual, Ask question #Minimum 100 words accespted#i want solution ...

Ask question #Minimum 100 words accespted#i want solution manual of electronic instrumentation and measurements

Multiplexing 64-to-1 by using four 16-to-1 multiplexers, Q. Show an arrange...

Q. Show an arrangement for multiplexing 64-to-1 by using four 16-to-1 multiplexers and one 4-to-1 multiplexer.

Power system, maxium capacity of genrators in practical use

maxium capacity of genrators in practical use

Give examples of natural insulating materials, Give four examples of natura...

Give four examples of natural insulating materials. Illustrations of the natural insulating materials are rubber, cotton, wood and mica.

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