Draw and explain colpitts oscillator, Electrical Engineering

Assignment Help:

Q. Draw and explain Colpitts oscillator?

Colpitt's oscillator is a superb circuit which is used widely in commercial signal generations of  frequency of 100 Mhz . It consists of  a single state inverting amplifiers and an (phase shift network). The two series capacitors C1 and C2 form the potential divider for providing the feedback voltage ie. Voltage developed across the capacitor C2 provides the regenerating feedback.If you consider positive feedback is applied to compensate for the losses in the tuned circuit, the amplifier and feedback circuit create a negative resistor. When Z1 and Z2 are capacitive, the impedance across the capacitors can be estimated from a formula I won't lay on you here because it includes beta, hie, as well as XC1 and XC2. Suffice to say it can be shown that the input impedance is a negative resistor in series with C1 and C2.  And the frequency is in accordance with:

292_Draw and explain Colpitt’s oscillator.png


Related Discussions:- Draw and explain colpitts oscillator

Illustrate bandstop filter, Q. The dual situations is shown in Figure , in ...

Q. The dual situations is shown in Figure , in which a high-pass and a low-pass filter are connected in parallel to produce a bandstop filter. With ω CLP = 10 CHP = 50, ω 0

Explain nodes analysis, Nodes analysis Analysis using KCL to solve for ...

Nodes analysis Analysis using KCL to solve for voltages at every common node of the network and as determines the currents by and voltages across every elements of the network.

Torque required to turn a self excited generator, Work must be done against...

Work must be done against the electromagnetic torque in order to generate the voltage (and current) supplied to the electrical load connected to the generator. Therefore energy con

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.

Measure phase angle by using an oscilloscope, 1. Introduction : ...

1. Introduction : Theory:  Phase angle is defined as the number of degrees separating two sine waves of the same frequency. The Phase shift is defined as any change t

Which matels alloy make bronze, Bronze is an alloy of (A) Copper and T...

Bronze is an alloy of (A) Copper and Tin.               (B) Copper and Steel. (C) Copper and Mercury.      (D) Copper and Aluminium. Ans: Bronze is an alloy of Cop

Resultant force, State and prove parallelogram law of forces and explain i...

State and prove parallelogram law of forces and explain it''s applications

Define combinations of logic gates, Define Combinations of logic gates? ...

Define Combinations of logic gates? The Logic gates be able to combined to produce more complex functions. They can as well be combined to substitute one kind of gate for anoth

Minimized circuit using or and and not gate, Given S(F) = A'B +'C'D + C'D +...

Given S(F) = A'B +'C'D + C'D +'A'B + 'A B + 'A 'C + 'A D + 'A C A. DRAW A MINIMIZED CIRCUIT USING ONLY OR AND NOT GATES (2 input gates) B. WRITE THE WIRE LIST Example of 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