ECE :: Analog Electronics
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It is desired to reduce distortion in a CE amplifier circuit. We should
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In the circuit of figure β = 50 and VBE = 0.5 V. The quiescent value of base current IB is
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For a push pull circuit the most favoured biasing method is
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In feedback amplifier the closed loop gain is nearly independent of open loop gain and depends only on the feedback factor.
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In a N-P-N transistor, when emitter junction is forward biased and collector junction is reverse biased, the transistor will operate in
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A feedback network to be used with an amplifier to provide oscillation is tested and found to give an output of 0.124 V with a 0.5 V input. What percentage negative feedback should be introduced to the amplifier so that linear oscillations result?
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The advantage of Weinbridge oscillator over the phase shift oscillator is that oscillator the frequency may be varied over a range of
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In figure the input and output Miller capacitances are
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An inverting amplifier has R1 = 10 kΩ, and Rf = 150 kΩ then the O/P voltage, if input voltage Vi = 1 volt.
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Figure uses 10 V zener diode. The minimum and maximum current through series resistance are
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= 10 mA.
= 30 mA.