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.
hello i have MATLAB 2013 how can i send and receive files using Bluetooth
Balanced Wye-Connected Load Let us consider a three-phase, four-wire 208-V supply system connected to a balanced wye connected load with an impedance of 10 20° , as shown in F
Structure and use of PNP transistor: The figure opposite is a schematic presentation of a PNP transistor related to two voltage sources. To construct the transistor conduct ap
Now you have to digitally implement this circuit. Compute a difference equation which if you implement will behave exactly like this circuit.
Classification of Feedback Control Systems by Control Action A more common means of describing industrial and process controllers is by the way in which the error signal E(s) i
Switching characteristics When a positive signal is applied GTO starts conducting before initiation of conduction anode current is zero and anode to cathode voltage Va
A Class, "A" Amplifier is needed with the following specification: Collector Current = 5mA Needed offset voltage across RE= 2V Lowest input Frequency = 50Hz Use a BC108
Fly Back Converter In fly back converter an inductor is used is primary winding of transformer. Inductor stores the energy when unregulated DC input is given to the
Customer Relationship Management Software CRM software products are most varied and variable in cost and functionality. The significant CRM software application includes: a
design analog normalised low pass filter by using matlab routine cheb1ap
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