Week 3 Lab Notebook (1)

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Briefly comment on the significance of controlling the bandwidth of frequencies anamplifier intends to amplify.

Q2. An analog signal x(1) 3.25 sin (2nt) is ideally sampled with a sampling rate of 8 samples per second and then applied to a uniform midtread quantizer whose output takes on the values 0, +1, ±2, ±3 volts. a) Determine the quantizer parameters and sketch its input/output characteristic. b) Sketch the waveform of the sampled signal for one complete cycle (8 samples). c) Sketch the waveform of the output quantized signal for one complete cycle.

Q2. An analog signal x(t) = 3.25 sin (2rt) is ideally sampled with a sampling rate of 8 samples per second and then applied to a uniform midtread quantizer whose output takes on the values 0, ±1, ±2, ±3 volts. a) Determine the quantizer parameters and sketch its input/output characteristic. b) Sketch the waveform of the sampled signal for one complete cycle (8 samples). c) Sketch the waveform of the output quantized signal for one complete cycle.

2. Write about two applications for a series circuit, (Think about the different electronics at home or at work), and some of the advantages and disadvantages?

The term duty cycle refers to the amount of time a signal is complete cycle. A. off compared to the period of one B. on The output voltage of op-amp is positive saturation, when the voltage applied to the input is greater than the input. A. inverting B. noninverting A square wave that is 20V at its high state and OV when it is off will produce an average DC when its duty cycle is 75%. Formula: VOUT = Duty Cycle * Peak voltage voltage of A. 7.5V B. 10V C. 15V

draw the signal after adding -2.5DC level with the given signal, sketc the new output signal and draw the required circuit and briefly specify the function of circuit also name the phenomenon

None

A signal generator having a source resistance of 50 2 is set to generate a 1 kHz sinewave. Open circuit terminal voltage is 10 V peak-to-peak. Connecting a capacitor. across the terminals reduces the voltage to 8 V peak-to-peak. The value of this capacitor is -HF. (Round off to 2 decimal places).

Please explain the concept of amplifiers.

1a)Construct the Signal Flow Graph for the block diagram shown in Figure above.b)Describe forward path and list down all forward path(s) of the obtained Signal Flow Graph. c)Describe loop and list down all loop(s) of the obtained Signal Flow Graph. d)Describe nontouching graph to a forward path and list down all nontouching graph(s) of the obtained Signal Flow Graph.e)Describe all variables in Mason’s Rule Formulation.f)Find the transfer function C(s)/R(s) by using the equation. Show all seven (7) steps to obtain the transfer function.

a. Based on your understanding on amplifiers and Oscillator, explain the operation of Hartley Oscillator, principle of operation and highlight the main applications. (write short note 80 words)

Based on your understanding on amplifiers and Oscillator, explain the operation of Colpitt’s Oscillator and highlight the main applications. (short note 80 words).

explain the efficiency of tuned circuits as frequency delective circuits in paragraph form

Define signal

It is connected to the input of a transistor (BJT) amplifier circuit with a gain of "-50" with a peak value of 100mV. a sine sign is applied a) Draw the circuit. b) Underline the input and output voltages by specifying their values.

In the experiment (Differential amplifier) answer the following: Theoretical Calculations: 2. To what type of circuit does a differential amplifier correspond?

VR2 (t) voltage will be calculated by analyzing the circuit in Figure 2 with a non-linear element using the Small Signal Analysis method. For this purposea) Find the operating point VkQ, IkQ voltage and current values of the nonlinear element.b) Linearize the non-linear element at the operating point.c) Find the voltage VR2 (t) by calculating the effect of the variable source using the linear model.

Please could you complete this electronics question about Circuit Analysis.

Questions: - 1. For the circuit of Figure (1), the voltage gain from base to collector approximately: is : (a)l (b)12 (c)112 (d)224 2. The output signal of the common-emitter amplifier is out-of-phase with the input by: (a)0° (b)45° (c)90° (d) 180°. 3. If the emitter bypass capacitor in Figure (1) is removed, the Amplifier voltage gain will: (a) Increase. (b) Decrease. (c) Remain essentially the same. 70 4. If the emitter bypasses capacitor in Figure (1) is shoricu, the voltage gain will increase. (a). The voltage gain will remain the same. (c) The transistor will saturate. (d) None of the above. 5. If the load resistor RL in the circuit of Figure (1) is made larger, the amplifier voltage gain will (a) Increase. (b) Decrease. (c) Remain essentially the same. main Đọc To 1.1.3 G 1=1 kHr R₁ 104 H.H C₁ 1 pF C₂ 0.22 F V₁ THE R2 U 100 ( U 30 mV R₂ 470 (1 B Rpart 1 1x0 V₁ bts Type 91182 Fig.1 R₁ 4.760: 10 to point D C Ucu Y₁ M

Draw the AC circuit for basic differential amplifier design

Questiona. In an experiment the voltage required for the device is 9V dc but unfortunately the transformer available is of 220-6 Vdc. Design a circuit which can power the device (use only methods that we have studied excluding Zener diode)b. Explain the behavior of the following circuits if the input signal is triangular wave of peak voltage 5V and the biasing battery of 3V

Sketch the Colpitts oscillator (using a BJT), clearly showing the modifications from a voltage-divider bias circuit above. (i) Explain the working principle of Colpitts oscillator. In your explanation, include the function of each component and the function of the tank circuit, together with the energy conversions taking place in the tank circuit. (ii) What is the phase relationship of the output signal with respect to the input? (iii) Write an expression for the frequency of oscillation and explain all the terms of the equation. (iv) Calculate the frequency of oscillation given that C₁=C₂=7μF and L=2 H Activate Wind

The equipment order in which a vibration sensor/transducer turns vibrations into a vibration spectrum is: Select one: A. Filter - Sensor – Amplifier- DisplayIncorrect B. Sensor - Filter – Averager - Display C. Sensor- Averager- Filter -Display D.None of the above Please explain your answer

Q.7. Write a short note on active and passive components.

Book: Operational amplifiers and Linear Integrated circuits Chap#03

21.Applying DC voltages to a transistor in order to turn it on so that it can amplify AC signals. What is one word that describes this?__________ 22.In which region are both the collector-base and base-emitter junctions reverse-biased? _________?    23.For an Op-amp with negative feedback, the output is ________ A. fed back to the inverting input B. equal to the input C. increased D. fed back to the non-inverting input

The circuit in Figure 1, which includes a non-linear element, is analyzed by the Small Signal Analysis method. By analyzing the voltage VR2 (t) will be calculated. For this purpose a) Find the operating point VkQ, ​​IkQ voltage and current values ​​of the nonlinear element. b) Linearize the nonlinear element at the operating point. c) Find the voltage VR2 (t) by calculating the effect of the variable source using the linear model. β=3    α=8

Measurements

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