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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.
Q. Basic Operation of P-channel enhancement MOSFET? In the fabrication of a p-channel depletion field-effect transistor, the gate is insulated from the channel. Therefore, the
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(a) For a series RLC resonant circuit, find an expression for the voltage across the resistance VR and obtain the ratio V R /V S , where V S is the applied voltage. Identify the e
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Fixed bias with emitter resistor: Figure: Fixed bias with emitter resistor The fixed bias circuit is changed through attaching an external resistor to the emitter
A periodic voltage consists of sinusoidal pulses having an amplitude of 150 V (SEE DIAGRAM BELOW). Use Fourier Series Expansion to calculate: 1. the amplitude of the DC co
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Voltage divider with AC bypasses capacitor: Figure: Voltage divider with capacitor The standard voltage divider circuit that is discussed above faces a drawback - A
What is hall effect?
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