ET212_W1_Lab

1N4001, 1N4002, 1N4003, 1N4004, 1N4005, 1N4006 and 1N4007  For any of the diodes, describe with the aid of diagrams/illustrations its applications in an AC to DC Bridge rectifier power supply circuit. For your circuit show and describe how you are going to smooth out the ripple voltage that will be present.

Consider the following circuit diagram. Using practical diode model solve the following items. i. What is the type of rectification in this circuit? ii. Calculate the total peak secondary voltage (Note that “RMS" value is given in the circuit) iii. Sketch the plot of time vs voltage over Load (RL) iv. Find the average voltage over Load. v. Find the maximum current passing over diodes. vi. Find the peak inverse voltage (PIV) over the diodes. vii. Find the minimum fuse current rating for the primary coil. 5:1 D DA 120 V rms D3 D2 RL=10kQ RL out ell lelll

Summarized the recent advancement in semiconductor materials

(1) Sketch the circuit for an ac supply input to a full-wave diode rectifier with a resistive load and no smoothing capacitor. (2).Sketch the ac supply voltage and the voltage across the resistive load in (question no 1)indicating the period of the resistive load voltage. (3) For the circuit in (question no 1) calculate the average and rms voltages across the resistive load for an rms ac supply voltage of 115 V assuming no diode voltage.

.8- Define Drift and Diffusion current in Semiconductor. General Purpose Diodes are mostly preferred in chopper circuits. Is it true? Justify.

a. Using standard resistor values, what value of R1 is needed to achieve 1.18V ±0.01V at Vout? b. Using the R1 value chosen in (a) part, what happens to the voltage Vout when a load resistance of 10K is added (between Vout and ground). c. What is the minimum value of load resistance required for correct operation   Zener diode is used in place of si diode. Or you can assume zener current according to requirement Answer it i will rate

Q.3 Power Semiconductor Devi... An SCR having peak voltage of 1000 V di and maximum at rating is 300A/μsec and dt dv dt rating is 1000 V/ usec. For a safety factor of 2 what should be the value of inductor connected in series with SCR?

3. Explain few applications of Zener diodes and LEDS.

b. Calculate the following about the circuit in the figure (If silicon diodes are employed in the rectification);i. the peak value of the output voltage considering the drop across each diode, Vpk.ii. the average voltage, Vdc. iii. The current through the load resistor, IL.iv. The current diode, Id.v. The frequency of the output signal, Fout.vi. Calculate the efficiency of the full wave rectifier expressed in percentage. vii. Sketch a graph of the input and output voltage against time.

1- Explain briefly with figure if exist, the Degenerate semiconductors. 2- When a diode is connected in a Reverse Bias condition, the overall result is a small ne current. Why?

Which one, or which several, accounts for the total current in the semiconductors? A.) drift current B.) diffusion current C.) bias current

1- In your own words, Illustrates the similarities and differences between N-type and P-type semiconductors. 2- Plot the VI characteristics graph of Actual diode model, label all values. [write your answer in a paper and upload it in the answer submission link.] A- BIE

In the circuit in the figure, an AC voltmeter will be made with full wave rectifier circuit structure. R = 50ohm and diodesResistance values ​​in the direction of transmission are Rd = 100ohm. Inside of the DC ammeter to be used as indicatorthe resistance is very, very small. The AC mark to be measured is Vs = 100 Sinwt Volts.a- Draw the shape of the current passing through the DC Ammeter and calculate its maximum value.b- Find the average value of the current passing through the DC Ammeter.c- Analyze the voltage seen at the ends of diode D1 for both alternans.d- Find the Rms value of the voltage seen at the ends of the diode D1.

For the circuit shown below, compute the maximum current through each resistor when terminal A is a) positive and, b) negative. Assume the diodes are ideal. (Will we convert to the RMS value to it's actual value?)

Answer both parts with brief explanation  I will like for both..

Describe the thermal production of charge carriers ina semiconductor and how this process limits theoperation of a semiconductor device.

Draw circuit diagram with the help of diodes. The current vs voltage graph at the output of the circuit  is shown below ...

Sketch circuits or diagrams for:-i. Half Wave Rectifier & its Output Rectified Waveformii. Crystalline Structure of P-Type Semiconductorsiii. Clamper

Find out the unknown values providing correct solution in detail.Also find out if the assumption given in thq question is correct or wrong. Give a short explanationLet the ID = 9

1)Define Drift and Diffusion current in Semiconductor. 2. Why n - type impurities are called as Donor impurities? 3. Give the other names of depletion region? (At least Two) 4. General Purpose Diodes are mostly preferred in chopper circuits. Is it True? Justify.

Sketch the energy band diagrams for the n-type and p-type semiconductors and explain the difference between them.

Explain the concept of semiconductor doping and its role in altering the electrical properties of microchips. How does doping impact the functionality of integrated circuits?

Ulode Rectifier Configurations 3.5.4 Questions & Answers a) In a half-wave rectifier, a diode will pass only halt alternation of a sinewave. b) A half-wave rectifier can produce positive or negative pulsating DC, depending on the placed in the circuit. which the diode is c) If a DC voltmeter measures 10V at the output of the half-wave rectifier, what is the amplitude of a sinewave? A de voltage measuve output y hald wave rectifjer ois Vo = 1oV d) If a DC voltmeter measures -20V at the output of the half-wave rectifier, what is the amplitude of the sinewave? Yp VelT The out put g hald Wave yectidier aus TT/2or) = 62.85 e) What would be the reading of the DC voltmeter placed across the output of a half-wave rectifier if diode burns short? f) What would be the reading of the DC voltmeter placed across the output of a half-wave rectifier if diode burns open? no VOltage dvop across duving houd cyue Qud diod dawage excess heating of diode gets damage. As there out put D) be zero 20ad…

1- In your own words, Illustrates the similarities and differences between N-type and P-type semiconductors. 2- Plot the VI characteristics graph of Zener diode, label all values. [write your answer in a paper and upload it in the answer submission link.]

Assume cut in voltage according to you if there is needed means 0.7 v.

Question 4 A zener regulation circuit is given in Figure 3. R 100 0 VIN VOUT Figure 3 (a) Determine the minimum and maximum input voltages that can maintain the zener diode IN4753A in the 'ON' state by using ideal zener diode. 1. (b) Determine the minimum and maximum input voltages that can maintain the zener diode IN4747A in the "ON" state by using practical zener diode.

What are the different integrated circuits and describe the characteristics of each.

Subject: Electronics Engineering  Explain Shockley's equation and draw the I-V characteristics for both forward and reverse biased pn diode. Mention the operation and working principle of LED.

Discuss the significance of Moore's Law in the context of microchips and semiconductor technology. How has the continuous scaling of microchips influenced their performance and energy efficiency over time?

Ideally, we want the voltage for a Zener diode to be constant in the breakdown region. What does this imply about the dynamic resistance in the breakdown region for an ideal Zener diode?

Q1 Figure Q1(a) is a full wave bridge circuit with a capacitor filter and the output waveform produced by the circuit is shown in Figure Q1(b). Assume all the diodes in the circuit have a forward voltage of 0.7 V. (a) Sketch the waveform in A, B, C and D as shown in Figure Q1(a). (b) Design the circuit by finding the value for the capacitor, C and the line voltage Vpri(rms) to the circuit to produce the output as shown in Figure Q1(b).

Question 1: a) Draw the circuit diagram and explain the working of Half Wave Rectifier (HWR). b) With the help of a neat circuit diagram, explain the working principle of a Centre tapped Full Wave Rectifier. Also, Draw the expected output voltage wave forms with/without using a capacitor parallel with the load. Show the factors affecting voltage ripples and how to eliminate these ripples as much as possible.