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

FET, shockely equation?

shockely equation?

Sparking with electrical equipment, Sparking : In ordinary domestic situat...

Sparking : In ordinary domestic situations, small electrical sparks are usually not hazardous. In certain conditions which are frequently encountered in science labs, even the sma

Diod, explain the application of the Si,zener,and LED diodes

explain the application of the Si,zener,and LED diodes

CRO, draw a labled diagram of CRO and explain the function of its parts

draw a labled diagram of CRO and explain the function of its parts

High-pass t filters, High-pass T filters: Three-element filters can co...

High-pass T filters: Three-element filters can comprise a 'T' or 'π' topology and in either geometries, a low-pass, band-pass, high-pass, or band-stop characteristic is feasib

Determine kva rating of the auto - transformer, Q. A 15-kVA, 2200:220-V, tw...

Q. A 15-kVA, 2200:220-V, two-winding, single- phase transformer is connected as an autotrans- former to step up voltage from 220 V to 2420 V. Without exceeding the rated current of

Nand gate - introduction to microprocessors , NAND Gate NAND   means NO...

NAND Gate NAND   means NOT AND  it complements  the output  of an AND  gate. The symbol  of NAND  by a NOT  gate.  Generally Not  operation  is represented by a bubble as shown

Traditional Model - Performance Monitoring and Control, Traditional Model -...

Traditional Model - Performance Monitoring and Control The traditional model talks only about the finance and the financial accounting model. The output are published periodic

find the current and voltage by ohms law and kvl, 1. A current carrying co...

1. A current carrying conductor is found to carry 10 μA at a given time slot from 5μs to 1.5 ms. Find the total number of electrons flowing in the conductor during this time slot.

Rrc rotate accumulator right instruction , RRC Rotate  Accumulator  Right...

RRC Rotate  Accumulator  Right Instruction This instruction also  rotates the contents of the  accumulator  toward right  by one bit. The  D 7   bit moves  to D 5   position a

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