Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. What is Barkhausen criterion? Why is the value of Ab kept slightly greater than 1?
The condition |Ab| = 1 is called the Barkhausen criterion. It implies that when |Ab| = 1, there exists an output voltage even in the absence of any externally applied signal. If |Ab| = 1, the feedback voltage is sufficient for producing self sustained oscillations. If Ab = 1 precisely, then after sometime it is found that Ab will either become lower or higher than unity. This is due to the change in the characteristics of the active devices with voltage, temperature or age. If Ab < 1, the removal of input signal source will result in dying out of oscillations. If Ab > 1, then the amplitude of the oscillations will continue to increase until clipping occurs because of saturation and cut-off causing the voltage gain to reduce.
Hence, Ab is kept slightly larger than unity so that any variation in circuit parameters may not cause Ab to become less than unity.
Planned and coordinated development: The CEA would prepare the global Electricity Plan after carefully carrying out the demand forecast in consultation along with stakeholders
Q. Advantages and Disadvantages of rc coupled amplifier? Advantages 1. Aids excellent frequency response.The gain is constant over the audio frequency range 2. It has l
Hexadecimal Number System Similar to octal number hexadecimal number system is also used to represent long binary numbers in smaller form. In microprocessor we use hexad
1- phase Full Bridge Inverter with R- Load 1-phase full bridge inverter with resistive load R i it has advantage over 1-? half bridge inverter that it does not require
Q. Calculate the diameter of an air-filled circular waveguide? Unlike transmission lines, which operate at any frequency up to a cutoff value, waveguides have both upper and lo
A four-pole, three-phase, wound-rotor induction machine is to be used as a variable-frequency supply. The frequency of the supply connected to the stator is 60 Hz. (a) Let the r
GIS database: In a nutshell, we could say that the GIS technology integrates general database operations (data query and statistical analysis), along with the unique a
how does an RC 3 phase shift oscillator operates?
What is ideal and real sources? Source conversion? Nodal voltage method for d.c circuit?
A flyback converter is to be designed so that it operates in continuous "current" (flux) mode with a duty cycle of D = 0.45 when input voltage V s = 48 V, output voltage V o = 30
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd