Electrical Engineering: Principles & Applications (7th Edition)

Chapter 10

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; Calculate the input voltage, using the ... more

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; The equation for power gain is .Substitute and... more

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  ; Given , , , , , , , , and , As these amplifier... more

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; Given , , , , , , , , and , As these amplifier ... more

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; Calculate the supply power using value of and... more

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; Given, input resistance , output resistance ... more

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; Given, input resistance , output resistance ... more

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  ; Given , , Calculate open circuit voltage gain... more

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Transresistance amplifier  ; In this case , the ... more

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  value for the 500 Hz component   value for the ... more

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Gain: ; Output is given as Input is given as gain ... more

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B = 5.25 Mhz ; To find out the Bandwidth , use the... more

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; Time (T) for amplification = 100 s , tilt > 1 ... more

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= -20 db CMRR = 114 db ; common mode gain A_{cm} ... more

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The causes of loading effect in amplifier are low ... more

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The output voltage of the inverting amplifier is ... more

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; The voltage amplifier model is given as :  ; more

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; The gain observed when switch is closed is ... more

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; To find the current gain ,use the formula ... more

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; To find  Voltage gain. Find the output voltage... more

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; An ideal current source is applied to an ... more

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; To find output voltage, first find the input ... more

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; To find the output resistance, use the formula ... more

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; To find output voltage, first find the input ... more

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; To find the voltage gain, use the formula of ... more

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When the signal source is connected to the  ... more

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The output resistance is the most important ... more

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The given condition is possible when the current ... more

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; The current gain of the amplifier is given by ... more

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Input resistance can take any value above  ; As ... more

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If the current gain and the voltage gain is equal ... more

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5 amplifiers ; The voltage gain of given amplifier... more

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; To find input resistance, output resistance and... more

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; To compute the input resistance, output ... more

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; The described cascade of two amplifiers in ... more

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; The cascade connection of two amplifier along ... more

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; To compute input resistance, output resistance ... more

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; The net power delivered to the amplifier is ... more

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; To compute Dissipated power and power ... more

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; To Compute dissipated power and power ... more

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; To compute the dissipated power and efficiency ... more

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The efficiency of a power amplifier is the ... more

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; In the cascade of two amplifiers, the power ... more

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; A short circuit transconductance gain of ... more

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; From the given data set it is inferred that the... more

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; Given the input resistance , output resistance ... more

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; The amplifiers are described by short circuit ... more

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; Given that, the input resistance, output ... more

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; Given that: short circuit transconductance gain... more

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; Given that, Open circuit transresistance gain, ... more

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; since , short circuit current gain is10 and  ... more

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; since the input resistance, the output ... more

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; since, short circuit transconductance gain is ... more

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The quantity of charge sent by the filter to the ... more

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For an amplifier to supply a constant signal to ... more

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Op Amps avoid this by having very high input ... more

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It is a good thing for input voltage , as if the ... more

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; Replace the given amplifier block with its ... more

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ideal voltage amplifier -ideal current amplifier... more

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ideal voltage amplifier ; The Open circuit voltage... more

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; The transresistance amplifier model is ... more

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For ideal voltage amplifier- For ideal current ... more

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; Replace the given amplifier block with its ... more

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If it is an ideal operational amplifier (with ... more

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The ideal transconductance amplifier is best ... more

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approximate ideal trans-resistance amplifier  ; ... more

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Ideal trans conductance amplifier ; I the given ... more

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Ideal current amplifier ; The problem needed an ... more

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Ideal voltage amplifier ; Th e problem requires an... more

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An ideal trans-resistance amplifier can be used ... more

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It is an approximate trans-conductance amplifier. ... more

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An approximate trans-conductance amplifier is ... more

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; Let . The equation of the gain can be rewritten... more

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The gain magnitude of DC coupled amplifier plot ... more

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The amplifier should be ac coupled. Here the ... more

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The complex voltage gain at is The complex ... more

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The wide band amplifier have a lower half power ... more

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The amplifier should use ac coupling. Ac coupling ... more

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The complex gain should be for distortion less ... more

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The amplifier should have constant gain response ... more

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; The input signal of the amplifier is given as ... more

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percentage tilt ; As It is given that half power ... more

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; Rough sketch for Pulse Response will be:The ... more

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Due to non-linearity of amplifier, When there is ... more

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; It is given that: input  Output Fundamental ... more

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Distortion factors and Total harmonic distortion ... more

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Amplitudes ,, Frequencies , , ,   ; Given is ... more

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Differential Amplifier:Differential Amplifier ... more

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; Differential gain, two input voltages are ... more

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Generally the differential amplifier has both ... more

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CMRR  is the common mode rejection ratio which is ... more

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; From the given output voltage expression we ... more

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; Given common mode is at least less than the ... more

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; The balancing circuit for the differential ... more

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The extreme output voltage is If the resistances ... more

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; Bias current source is a small dc current ... more

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The extreme output voltage with respect to the ... more

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Percentage change in the output voltage when ... more

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; For both stages, the open circuit voltage gains... more

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The following table shows different types of ... more

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; To find the value of , use the relation . ... more

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and ; Input supply power of amplifier, power of ... more

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To avoid any kind of distortion in output waveform... more

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Offset current, bias current and offset voltage ... more

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For AC input, nonlinear distortion produce output ... more

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Common Mode Reejction Ratio known as CMRR is ... more

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