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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.
Phasor relation between different voltages and currents: In the capacitive circuit of Figure, find 1. Impedance, 2. Resultant current, 3. Power factor,
The circuit shown below is a DC charging and discharging circuit. a. At t = 0 sec, switch S1 is thrown to position 1 ("pos1"). Write the mathematical expressions for and .
Suppose we have a coil wound onto a ring of material with relative permeability µ r . Provided that the relative permeability µ r >> 1, then the magnetic flux lines will s
The automobile shall not rely on fossil fuel for energy. The automobile shall be designed using available and emerging technology. The automobile shall seat at least five
(a) Draw and illustrate the V-I characteristics of PN junction diode. How the characteristics reflected with change in temperature? (b) Describe physically why a PN junction dio
Q. Consider the synchronous counter shown in Figure of the text. (a) Draw its timing diagram. (b) Show the implementation of the same synchronous counter using D flip-flops.
Illustrate how to replace the HT Fuse on a 6-pole and 4-pole structure? Ans: a) Open switch on 6-pole or 4-pole. b) Connect the discharge rod between earth and conduc
What is the difference among 8085 and 8086 in microprocessor? Ans) 8086 has a special concept known as memory segmentation. It permits parallel processing, whereas 8085 does no
power factor improvement
What is the purpose of segment registers in 8086? There are 4 segment registers present in 8086. They are 1. Code Segment (CS ) register 2. Data Segment (DS ) register
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