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. Explain the conditions to be satisfied for sustained oscillations in an oscillator circuit with the help of block diagram.
The essential condition for sustained oscillations are :
· | AB | = 1,i.e. the magnitude of loop must be unity.
· The total phase shift around the closed loop is zero or 360 degrees.
The condition that | AB | = 1 gives a single and precise value of AB which should be set throughout the operation of the oscillator circuit.But in practice,as transistor characteristics and performance of other circuit components change with time,|AB| will become greater or less than unity.Hence,in all practical circuits |AB| should be set greater than unity so that the amplitude of oscillations will continue to increase without limit but such an increase in amplitude is limited by the onset of the nonlinerarity of operation in the active device associated with the amplifier as shown in the figure above.In this circuit,AB is larger than unity for positive feedback.This onset of nonlinearity is an essential feature of all practical oscillators.
Select the response describing the steady state effect of increasing the air gap for otherwise identical devices, one operating with constant DC voltage excitation and one with con
Illustrate about the Digital televisions Microprocessor would be used to control the below features, for instance: - Automatically tuning into television stations - allow
Memory to Register This instruction is used to copy the contents of a memory locations whose address is specified by the HL register pair to any register. Before using th
Complier-High Level language It also translates the whole high level program into object program if it does not have any syntax error. The disadvantage of the in
Q. A diode is connected in series with a voltage source of 5 V and a resistance of 1 k. The diode's saturation current is given to be 10 -12 A and the I-V curve is shown in Find
Explain Interrupts of 8085. a) Maskable interrupt b) Vectored interrupt c) Non maskable interrupt d) Hardware interrupt e) Software interrupt
Classify the conducting materials. Conducting materials are classified by low resistivity materials and high resistivity materials. Low resistivity materials: The conduct
Aggregate Technical and Commercial Loss It is unfortunate in that addition to T&D losses, there is also a loss in revenue because of non-realisation of billed demand which lea
Q. Process of Amplitude Modulation? In AM the message signal is impressed on the amplitude of the carrier signal. There are several different ways of amplitude modulating the c
Pareto Analysis Pareto charts are based on the principle - "Vital Few Trivial Many". It allows user to focus attention on a few significant factors in a process. It is very us
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