Theoretical Calculations: 1. What is the polarity of the input voltage Uin compared with the output voltage Uout in an Inverting amplifier? 2. Which components determine the gain factor (v) in an inverting amplifier? = 100 kQ and 3. What is the gain factor (Inverting and Non-inverting) when RR Rin %3D 10 k2? 4. What is the polarity of the input voltage Uin compared with the output voltage Uout in Non-inverting amplifier? 5. Analyses the ccts. Shown in Fig.(1) and Fig.(2)? 6. Enter the measured values in Table (1) & (2) On the grid paper, plot a graph showing the dependence of the output voltage Uout on the input voltage Uin and the negative feedback resistances? 7. What do you mean by saying virtual ground? inverter and non-inverter In this experiment, answer all the questions in a clear line, please

Theoretical Calculations: 1. What is the polarity of the input voltage Uin compared with the output voltage Uout in an Inverting amplifier? 2. Which components determine the gain factor (v) in an inverting amplifier? = 100 kQ and 3. What is the gain factor (Inverting and Non-inverting) when RR Rin %3D 10 k2? 4. What is the polarity of the input voltage Uin compared with the output voltage Uout in Non-inverting amplifier? 5. Analyses the ccts. Shown in Fig.(1) and Fig.(2)? 6. Enter the measured values in Table (1) & (2) On the grid paper, plot a graph showing the dependence of the output voltage Uout on the input voltage Uin and the negative feedback resistances? 7. What do you mean by saying virtual ground? inverter and non-inverter In this experiment, answer all the questions in a clear line, please

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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2. How can the amplitude of the output voltage be increased? 3. Discuss the effect of increasing the input frequency on the amplitude of the output signal 4. How can you change the gain of a non-inverting amplifier? 5. How the non-inverting amplifier can be useful in practice?
Suppose a differential amplifier has A = 120 dB,and it is operating in a circuit with an open-circuitoutput voltage vo = 15 V. What is the input voltagevid? How large must the voltage gain be forvid ≤ 1 V? What is the input current i+ ifRid = 1 M ?
For the circuit shown, RI = 1Ω k , RL = 16Ω ,and A = −2000. What values of Rin and Rout willproduce maximum power in the load resistor RL?What is the maximum power that can be delivered toRL if vi is a sine wave with an amplitude of 20 mV?What is the power gain of this amplifier?
For the circuit shown, RI = 1Ω k , Rin =20Ω k , Rout = 60Ω , and RL = 2 Ωk . Whatvalue of A is required to produce a voltage gain of74 dB if the amplifier is to be an inverting amplifier(θ = 180◦)?
a) What is the input impedance of an inverting amplifier circuit? What is the input impedance of a non-inverting amplifier circuit? b) What is the formula for the gain of an inverting operational amplifier circuit with input resistor Ri and feedback resistor Rf? Draw the circuit. c) What is the formula for the gain of a non-inverting operational amplifier circuit with input resistor Ri and feedback resistor Rf? Draw the circuit.
The voltage gain of an ampliﬁer is described by A(s)= 4π2 ×1018s2 / (s+200π)(s+2000π)(s+2π ×106)(s+2π ×107) (a) What are the mid-band gain and upper- and lower-cutoff frequencies of this ampliﬁer? (b) If this ampliﬁer is used in a feedback ampliﬁer with a closed-loop gain of 100 , what are the upper-and lower-cutoff frequencies of the closed-loop ampliﬁer? (c) Repeat for a closed-loop gain of 40.
Suppose that each output channel of a computer’ssound card can be represented by a 1-V ac sourcein series with a 32-Ω resistor. Each channel ofthe amplifier in the external speakers has an inputresistance of 20 k , and must deliver 10 W intoan 8-Ω speaker. (a) What are the voltage gain, currentgain, and power gain required of the amplifier?(b) What would be a reasonable dc power supplyvoltage for this amplifier?
The amplifier as shown has R1 = 8.2 k ,R2 = 160 k and operates from ±12-V powersupplies. (a) What is the voltage gain Av = vo/viof the circuit? (b) Suppose input source vi is notideal but actually has a 1.5 k source resistance.What is the voltage gain Av = vo/vi?
(a) The input voltage applied to the amplifier as shown is vI = VB + VM sin 1000t. What isthe voltage gain of the amplifier for small values ofVM if VB = 0.6 V? What is the maximum value ofVM that can be used and still have an undistortedsinusoidal signal at vO? (b) Write expressions forvI (t) and νO(t).
What are the voltage gain, input resistance, andoutput resistance of the amplifier as shownif R1 = 12 k and R2 = 120 k ? (b) Repeat forR1 = 160 k and R2 = 330 k ? (c) Repeat forR1 = 4.3 k and R2 = 270 k ?
A certain operational amplifier has an open-loop gain of 50 V/mV at low frequencies (note carefully the units of the gain value), with negligible phase shift and gain variation from d.c. to a maximum of 15 MHz. Above 15 MHz, the gain is reduced and the phase shift becomes very large and significant. (i) What is the amplifier gain at low frequencies expressed in dB? (ii) What is the –3dB frequency (or “break frequency”) of the compensation that should be added to make this operational amplifier unconditionally stable when connected to any passive negative feedback network having a phase shift magnitude of up to 90° maximum? (iii) What is the maximum gain-bandwidth product of an amplifier circuit constructed using this operational amplifier with the frequency compensation that you specified in part (i) of this question?
On which criteria the power amplifiers are classified? What is the operating point of a class-A power amplifier? What is meant by efficiency? How much efficiency will be obtained in a class-A power amplifier? What are the applications of power amplifiers?