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Q. What is a clamper? Differentiate between a clamper and clipper.
Clamping network shifts (clamps) a signal to a different dc level, i.e. it introduces a dc level to an ac signal. Hence the clamping network is also known as dc restorer. These circuits find application in television receivers to restore the dc reference signal to the video signal. During the positive half cycle, the diode conducts, i.e. it acts like a short circuit. The capacitor charges to V volts. During this interval, the output which is taken across the short circuit will be Vo = 0 V. During the negative half cycle, the diode is open.
The difference between clipping and clamping circuits is that while the clipper clips off an unwanted portion of the input waveform, the clamper simply clamps the maximum positive or negative peak to a desired dc level.
A linear circuit component is one that has a linear I V characteristic
Q. Draw the common source drain and transfer characteristics of a JFET. How are they useful? The graph below shows variation of the drain current Id as a function of the drain
What is Direct memory access? Direct memory access (DMA) is a process wherein an external device takes over the control of system bus by the CPU.DMA is for high-speed data tran
Calculation of Receiving End Voltage Consider the simple circuit shown in Figure. To find the voltage V 2 using analytical method: P = I V 2 = 0.5 ..... (1)
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The devices in power system shown in Figure 2 have the following ratings: G1 : 100 MVA, 13.8 kV grounded Y, X” = 0.15 pu, X2 = 0.015 pu Xo = 0.05 pu G2 : 50 MVA, 20.0 kV grounded
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Under what circumstances is individual circuit protection for a lighting and applications panel board not required? What is the purpose of guarding runway contact conductors and
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