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Q. Explain about Differentiator?
Shown in Figure is a differentiator which is obtained by replacing R1 in the inverting amplifier of Figure by a capacitor C. Assuming ideal op-amp characteristics, one has i = iC and vo = - Ri = - RiC. But since iC (t) = Cdvin (t) /dt ,we get
vo (t) = - RC dvin (t) / dt
which corresponds to a differentiator with a gain of -RC. In practice, however, differentiators are normally avoided because of high-frequency noise (which is accentuated due to a transfer function that increases with frequency) and stability problems (which make them oscillate).
Q. Write short note on Quantization? Quantization: This is first step in PCM. Total amplitude range of the modulating signal is divided into a number of standard levels calle
Name the switching schemes used in a digital exchange
Define NOT Gate - Microprocessor? The NOT GATE which is as well called an Inverter, is used to invert the logic state of a signal. The output Q is true while the input A is NOT
Q. What do you mean by Waveforms? We are often interested in waveforms, which may not be constant in time of particular interest is a periodic waveform, which is a time-varying
A voltage signal generated by a sensor conditioning circuit varies from -0.5V to +0.5V . The signal from the sensor is to be connected to the analog to digital converter which onl
help with assignment
how does synchronous machines operate
Q. A50-kW, 230-Vcompound generator has the following data: armature-circuit resistance 0.05 , series-field circuit resistance 0.05 , and shunt- field circuit resistance 125 . As
Molecular Chain (MIT, Princeton, Colorado) Consider a one-dimensional chain consisting of N molecules which exist in two configurations, α, β, with corresponding energies and
Design combinational-sequential electronic logic gate circuit for a car wash....
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