Draw a block diagram of a practical power amplifier
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Draw a block diagram of a practical power amplifier
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- A FET a. has a very large voltage gain b. has a low input impedance c. is a voltage controlled device d. is a current controlled deviceCalculate the output impedance for small-signal equivalent circuit. (R=10 k2, r. =10 k2) ER Rout O A) Rout = 3.3 ka O B) Rout = 20 ko )C) Rout = 30 ka DI Rout = 5 k0Describe the differences between an LNA, a power amp, and a gain block.
- An analog signal having a maximum frequency of 40 Hz is sampled with a sampling rate of 20 Hz. What will be the value of the digital frequency?5. Main advantage of FET is (). A. Low output resistance. B. High input resistance C. It is current controlled D. The voltage amplification factor is large when the amplification circuit is composed In the negativa faadh l ICVI Ru Ri Vz I, R2 Io R2 = 3837.79 Q. R1 = 3763.67 0. R3 = 3989.3 Q. %3D R4 = 2898.06 Q. %3D V1 = 4.8 V. V2 = 8.1 V. 11 = 0.0099 A Determine the following: a.) The output current lo
- The current in a LR ciruit is given by i=5(1-e^-40t)amps. Determine the mean current over the time period 0 to 25 milliseconds.To a measurement range of -4 to 6 V, apply a 4-bit analog-to-digital converter. a- Identify the assigned voltages to each of the bins. b- Determine the voltage that will be assigned to a measurement reading -3.25 V. Calculate the percentage ADC error. c- Determine the voltage that will be assigned to a measurement reading 4.11 V. Calculate the percentage ADC error.Draw a schematic design with a simple audio amplifier with volume, bass and treble control.
- DISCUSSION: 1. Define an integrated circuit and classify them. 2. What is an op-amp and what are its types? 3. What is the operating voltage range of IC 741?You are tasked to look for a converter circuit design that has the specifications tabulated in Table I. The aim is to produce an output voltage of 20 V which can be used to drive a load of 120 W. The converter must operate in CCM. Table I: Design Specifications Values 35 V Design Parameters Input voltage Switching frequency Output current ripple Output voltage ripple 60 kHz 5 % 1 % a) Sketch the final converter and label all parameter values1- Design a 2nd order Butterworth active LPF with cutoff frequency f=900 Hz using R1=R2=12 kN.