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

Determine the fourier series for the periodic wave - forms, Q. Determine th...

Q. Determine the Fourier series for the periodic wave - forms given in Figure.

Determine the equivalent winding resistance, Determine the equivalent windi...

Determine the equivalent winding resistance: A 50 kVA, 2200/110 V, 50 HZ' transformer contain an HV winding resistance of 0.15 Ω and a leakage reactance of 0.45 Ω. The LV wind

Bjt, bias compensation using diode and thermistor

bias compensation using diode and thermistor

Find the resonant angular frequency, Consider the circuit shown in Figure w...

Consider the circuit shown in Figure with R 0 , (b) the quality factor Q, and (c) the maximum impedance Z m . Comment on the applicability of the universal resonance curve.

List the operation modes of 8255, List the operation modes of 8255 a) ...

List the operation modes of 8255 a) I.O Mode i. Mode 0-Simple Input/Output. ii. Mode 1-Strobed Input/Output (Handshake mode) iii. Mode 2-Strobed bidirectional mode

Transmission of electricity, explain all the components involved in transmi...

explain all the components involved in transmission of electricity

Write explanatory notes on 8284 clock generator, Write explanatory notes on...

Write explanatory notes on 8284 Clock generator. The 8284 is an ancillary element to the microprocessors. Without this clock generator, a few additional circuits are needed to

Oscilloscope, Describe in detail the construction and working of digital ty...

Describe in detail the construction and working of digital type oscilloscope.

Explain read-only memory, Q. Explain Read-only memory? ROM is nonvolati...

Q. Explain Read-only memory? ROM is nonvolatile (because it maintains its contents even when its power is shut off) and is used to store data and programs that do not change du

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