Analog-designs Questions Set 19:
Find the DC power of a class B amplifier if the AC power is 75 W.
Solution:
The output of an amplitude modulator is found to have maximum and minimum amplitudes of 12V and 4V respectively. Calculate the modulation index.
Solution:
Find the peak inverse voltage (PIV) on a silicon (Si) diode if the peak voltage on a center-tapped full-wave rectifier circuit is 12 V.
Solution:
The net cut-off frequency of a cascaded network of 5 similar amplifiers is 120 Hz. Find the lower cut-off frequency of each amplifier.
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In Class B Amplifiers, only odd harmonics exist because of the presence of phase shift.
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In a common base transistor circuit, the emitter current (Ie) is 10 mA and the collector current (Ic) is 9.8 mA, find the value of the base current (Ib).
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Introducing a resistor in the emitter of a common amplifier stabilizes the DC operating point against variations in
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The common emitter short circuit current gain β of a transistor
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When two capacitors are connected in series, the total capacitance is 2 μF. When they are connected in parallel, the total capacitance is 9 μF. Calculate the individual capacitances.
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What will be the β cut-off frequency if a transistor has transition capacitance of 2.5 pF, diffusion capacitance of 100 pF, and base-emitter dynamic resistance of 1200 Ω?
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