Principle of oscillation in an rc phase shift oscillator, Electrical Engineering

Assignment Help:

Q. What is the basic principle of oscillation in an RC phase shift oscillator. With a neat sketch explain its working?

For producing oscillations there must have positive feedback. Positive feedback occurs only when the feedback voltage is in phase with the original input signal. This condition can be achieved in two ways. Take a part of the output of a single staged amplifier(giving a phase shift of 1800 ) and then pass it through a phase shift network giving an additional phase shift of 1800 . thus a total phase shift of 1800+ 1800 = 3600
(which is equivalent to a phase shift of 00 ) occurs, as the signal passes through the amplifier and the phase shift network. This is the principle of a phase shift oscillator.


Related Discussions:- Principle of oscillation in an rc phase shift oscillator

Illustrate AC power systems, Q. Illustrate AC Power Systems? Electric p...

Q. Illustrate AC Power Systems? Electric power is indispensable for any modern society. Our use and demand for electric power grows annually at the rate of 2 to 3%; our need ne

Carrier concentrations, Carrier Concentrations For the calcu...

Carrier Concentrations For the calculation of semiconductor electrical properties and analyzing device behavior, it is necessary to know the number of charge carrier

Define capacitor construction, Define Capacitor Construction In its mo...

Define Capacitor Construction In its most elementary state a capacitor having of two metal plates separated by a certain distance d, in among the plates lies a dielectric mate

Show that the effective inductance of the two coils, Q. The self-inductance...

Q. The self-inductances of two coupled coils are L 11 and L 22 , and the mutual inductance between them is M. Show that the effective inductance of the two coils in series is give

Accidents, what are accidents in an organisation

what are accidents in an organisation

Energy, Explain different stage in energy audit?

Explain different stage in energy audit?

Explain the working of positive clamper, Q . Explain the working of Positiv...

Q . Explain the working of Positive Clamper? Positive Clamper: The circuit for a positive clamper is shown in the figure. During the negative half cycle of the input signal,

Body effect, Body Effect The body effect explains the changes in the th...

Body Effect The body effect explains the changes in the threshold voltage through the change in the source-bulk voltage, approximated by the subsequent equation: In whi

Use kcl and kvl to determine current, For the circuit shown in Figure, use ...

For the circuit shown in Figure, use KCL and KVL to determine i 1 , i 2 , v bd and v x . Also, find v eb .

Voltage transfer function of the high-pass filter, Determine the voltage tr...

Determine the voltage transfer function of the high-pass filter circuit shown in Figure, and find the expression for ω 0 .

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