W3 -Lab 3 Linear Op-Amp-OL 2023-06

R2 R, 1+ -VEE =- 15 V V. out in R, R1 R1 = 5.6 kQ V out Vin Vcc =+ 15 V Rin 19) calculate the value of R2 required for a closed-loop voltage gain of 5V/V

3) Consider the Zener-diode voltage regulator shown below. Suppose you design this circuit to drive (supply) a load resistance RL. The supply voltages to the op-amp are +15 V and -15 V (not shown). a) What is Vout? b) If R = 1 k 2, what is the smallest R, that the circuit can handle without "sagging" the output voltage? c) What should be the power rating of the resistor R? Be explicit about your assumptions. +15 V R Vout IN4738 CS Scanned with CaScanner

Design an op-amp circuit that can perform this operation: Vo = 2V1V2 – 3V3. Marking Scheme: 1. Circuit Diagram 2. Calculation with Assumptions

4) Consider the clamping circuit below, assume Vref=3 V and Vin=5sin(wt) ..Draw the output voltage waveform. Clearly mark the max and min of the voltage.. Vref

Book: Operational amplifiers and Linear Integrated circuits Chap#03

Ex) A standard two-junction thermocouple configuration is being used to measure the temperature in a wind tunnel. The reference junction is held at a constant temperature of 10 °C. We have only a thermocouple table referenced to 0 °C. Determine the output voltage when the measuring junction is exposed to an air temperature of 100 °C.

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?

If a sinusoidal input voltage of 2 volts peak-to-peak plus a DC offset of +1V is applied as the input voltage of your inverting amplifier, make a sketch showing this input voltage waveform and the expected output voltage waveform on the same plot. Sketch of waveforms:

(a) The BJT and FET are the types of transistor that were used as switches and amplifierin electrical and electronic circuits. List THREE (3) differences of the BJT and FET.(b) The operational amplifier (Op-Amp) is the main elements in the audio signal amplifier.Give TWO (2) features of Op-Amp and name TWO (2) types of practical Op-Amp.

1. The DC-DC converter has several circuit configurations. a) (Draw a simple connection of IGBT switch, diode and inductor that can discriminate between Buck, Boost and Buck-Boost converter circuits respectively.) b) ('A Boost converter produces an output voltage, Vo that is more than or equal to the input voltage, Vi. Based on this statement develop the equation for the relationship between Vo Viand D. where D represents the duty ratio. You can use any suitable diagram to illustrate your answer.)

Please show the work

A2 a) Design a common emitter amplifier as shown in Figure A2, with a split emitter resistor to control the gain. The specification of the amplifier is as listed below, and 10 base currents method can be used for the design. Fixed parameters: Where VCC=7.2V, VE=VCC/3, VBE=0.7V, Beta = 160, RL = 75kOhms Specification: Design for Max Symmetrical Swing, IC = 0.7mA, AV = 30DB i) Sketch the DC voltages and superimpose the AC voltages on the same sketch to highlight your understanding of the design. ii) Determine the value of RE and RC. ii) Determine the values of RU and RL for the design iv) Determine the bias components RE1 and RE2 for the design

A2 a) Design a common emitter amplifier as shown in Figure A2, with a split emitter resistor to control the gain. The specification of the amplifier is as listed below, and 10 base currents method can be used for the design. Fixed parameters: Where VCC=7.2V, VE=VCC/3, VBE=0.7V, Beta = 160, RL = 75kOhms Specification: Design for Max Symmetrical Swing, IC = 0.7mA, AV = 30DB i) Sketch the DC voltages and superimpose the AC voltages on the same sketch to highlight your understanding of the design. ii) Determine the value of RE and RC. i) Determine the values of RU and RL for the design iv) Determine the bias components RE1 and RE2 for the design b) Determine the input impedance of the transistor amplifier using the small signal equivalent model for the circuit above. i) Sketch the small signal model. ii) Calculate the value of the input impedance. iii) Evaluate the influence of the coupling capacitor and the equivalent input impedance if they serve as a filter. RU RC C2 Vout Q1 1u C1 Vin…

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.

3I Calculate the the Output Voltage of a non-inverting op-amp with the following parameters Rf = 360KOhms, Vo = -9.3V, and Vi = -0.3V. a.31.2 kOhms b.32 kOhms c.12 kOhms d.31 kOHms

TRANSISTOR BIAS DESIGN AND STABILITY Explain Why is it that decreases of the input resistance of the amplifiers not a problem for a single-diode temperature compensation or two-diode compensation circuits  such as constant current sources used in integrated circuits?

Figure below shows a circuit for a pulse width modulator (PWM) amplifier.  I. Describe how the circuit achieves low power dissipation  2. Describe with the aid of drawings the signal waveform shapes at points, A, B and C

Please answer asap..tq Electronic circuit analysis and design

1. A certain phototransistor has a BDC. 150. If I = 250, what is the collector current? 2. In the figure below, if Vcc is replaced from a 12-V to an 18-V source. what would be output voltage when (a) the light source is OFF and (b) when the light source is ON. #12 V

Discuss what a difference amp is, give equations and details, what is a single-ended and differential signal, what is a 4-20 mA signal, what is common-mode noise and why is a difference amp used?

Q1:- complete the following sentences (answer 10 only) 1- The maximum conversion efficiency in class-B push pull P.A. is... 2- Voltage shunt negative feed-back stabilize..... 3- Precision diode using op-amp is used to...... very small voltages. 4- The ratio of differential mode gain to common mode gain of op-amp is called ... 5- In sample and hold circuit the op-amp is used as.... 6- The bandwidth of ideal op-amp is.....and the output resistance is... 7- The transistor employed in multi-vibrator is used as .... 8- The 555 timer can be wired to operate as .... or .... Multivibrators. 9- Oscillation occurs when the loop gain of oscillator circuit has a magnitude of ... and loop phase shift of.... 10- The R-2R D/A converter has resistance spread of..... 11- The ideal op-amp voltage follower has a gain of ... Crystal oscillator is used to provide stable..... 12- 13- Impedance matching in tuned amplifier is used to improve....

The small-signal model is said to be valid for voltage variations of about 5 mV. To what percentage current change does this correspond? (Consider both positive and negative signals.) What is the maximum allowable voltage signal (positive or negative) if the current change is to be limited to 10%?

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.

(a) An LM35 integrated circuit has a temperature sensor and its associated signal conditioning combined into one package. It provides a calibrated output of 10 mVolt/ºC and is powered by a 5 volt do supply. For the circuit shown in Figure Q2 (a), find the amplified voltage Vout if the temperature is 11 °C. When measuring the output voltage Vout is it analogue or digital, single ended or differential? Explain your choice.

The circuit diagram of step-up type DC-DC converter is given below. It is assumed that the output capacitor is large enough and the output voltage is constant. (Consider that there is no circuit losses.) Select an inductance value for the CCM operating state of the circuit. With this inductance value, taking into account the minimum input voltage and minimum output current, calculate the value of C so that the output voltage has a fluctuation of 1%.

2. b) (i) Derive an expression for the differentiator using op-amp. (ii) Design a circuit to perform differentiation of an input signal that varies in frequency from 20HZ to about 2 KHz. (iii) If a sine wave of 0.5 V peak at 2 KHz is applied to the differentiator of part (ii), draw the output waveform.

explain RC coupled amplifier in detail .

With an aid of a. c. equivalent circuit, derive an equation representing common- mode gain (Ac) of the circuit.

QI/Explan the method to compensation of bias current, offset voltage,0ffset current and maximum output voltage swing of op-amp.

Figure 1(a) shows a series fed class A amplifier circuit. In order to achieve the maximum efficiency, the Q point must be located at the center of the DC load line as shown in Figure 1(b). This generates the maximum output current swing of Icmax (p – p) RC and the maximum output voltage swing is VCEmax(p – p) = Vcc Assume that the maximum input de power is (1 Vcc Pimax(dc) = Vcc!cQ(max)=Vcc \2° Rc. 2Rc Find the maximum efficiency, 7 of this circuit.

The input voltage for an Op-Amp series regulator is 12v,, if the non inverting input of the op-Amp is connected to 3 series diodes instead of Zener one . a) Design the the op-amp feedback resistors to give 6.5V fixed o/p voltage b) Determine the line regulation in both % and in %/V. if the input voltage increased by 3V leading to o/p voltage increase of 0.05