Diode Biasing Examples and Problems Source: Aminian and Kazimierczuk, Electronic Devices: A Design Approach VB for Si = 0.7 V VB for Ge = 0.3 V 1N5228B VZ = 3.9 V 1N5234B VZ = 6.2 V 1N5237B VZ = 8.2 V . Title: Microsoft Word - Zener Diode Problems.docx Author: May-09-2015 Created Date:
Solved Problems On Zener Diode. Q1. For the circuit shown in Fig (i), find : (i) the output voltage (ii) the voltage drop across series resistance (iii) the current through zener diode. Fig (i) Solution : If you remove the zener diode in Fig. 1, the voltage V across the open-circuit is given by : Since voltage across zener diode is greater than ...
Solution of the Problem 64-9 . From the circuit we conclude that when 0 ≤ V i < 3.6 the diode D 1 is cut off, that is, no conduct. In this case, as there is no current flowing through the circuit, both D 2 and D 3 are cut, consequently the output voltage V o = 0.As soon as the voltage V i exceeds the value 3.6 volts, the diode D 1 starts conducting, and from that moment on there will be a ...
The forward current of a silicon PN diode is 5 mA at T = 300 K. Determine the forward resistance of a PN junction diode. Given: Solution. Problem 1.6. The voltage across a silicon diode at room temperature is 0.7 V when 2 mA current flows through it. If the voltage is increased to 0.75 V, calculate the diode current. Given . Solution. Problem 1.7
Take the Zener Diodes (Discrete Semiconductor Devices and Circuits) worksheet. These questions & answers will help you master the topic! ... Typically, students practice by working through lots of sample problems and checking their answers against those provided by the textbook or the instructor. While this is good, there is a much better way.
Zener diodes are used in over-voltage protection. It is used in clipping circuits and is also used as a voltage regulator. Read more: Zener diode as a voltage regulator. Important Zener Diode Questions with Answers . 1. Operation of the Zener diode depends on the heavy doping of its _____ P -junction only; N-junction only; P-N junction; None of ...
Answer: b Explanation: A Zener diode is heavily doped so that the breakdown voltage occurs at a lower voltage. If it were lightly/moderately doped, it would breakdown at a comparatively high voltage and, thus, would not be able to serve its purpose. 3. When the reverse voltage across the Zener diode is increased _____
Refresh the page to get a new problem. Read the Zener diode class notes. ... I S = 47 mA; The breakdown voltage of the Zener diode is 15 V. Calculate the currents i R and i Z, and the voltage across the Zener diode, v Z. Answers This script ...
Question: Problem 3. For the zener diode circuit shown below, answer the following questions. Assume the constant voltage model for the zener diode (i.e., Vzk = constant; Vp = 0.7 V). Type answers along with appropriate units in the response field provided below. Worksheets should be uploaded on the last page of the exam.
This article lists 100 Zener Diode MCQs for Engineering Students.All the Zener Diode Questions & Answers given below includes solution and link wherever possible to the relevant topic.. The Zener diodes are the special diodes that are widely used in voltage regulation. The avalanche breakdown and the Zener breakdown are the two types of breakdowns in the Zener diode.
Problem 64-5 Source: Problem elaborated by the author's of the site.. Look at the circuit shown in Figure 64-05.1.Assume that V i varies randomly between 16 V and 22 V, and the load for the zener is formed by some resistors that can be activated by switches.Additionally, there is a variable load of 0 to 80 mA. ...
Quiz: Chapter 2 Solved Problems On Zener Diode Share. 1 / 10. Question 1 of 10. ... Don't know the answer Flag issue and discard. What are the maximum and minimum values of zener diode current for the circuit shown in Fig. 2 (i)? A 40 V B 50 V C 20 V D 30 V.
This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Zener Diode”. 1. Zener diodes are also known as a) Voltage regulators ... Transistor AC Analysis Biasing Parameters AC & DC Analysis Problem Two-Port Devices Model Transistor Hybrid Model h-parameters Determination h-parameters Measurement 3 ...
Answer: c Explanation: The Zener diode is a heavily doped diode due to which it forms a high width depletion layer when an external source is applied. When used in reverse biased state, the value of current is minimum up to a certain point of voltage. This value of voltage generates carriers rapidly in the semiconductors.
A Zener diode is designed for operation in the. A Zener diode is designed for operation in the: Forward bias region; Reverse bias region on right side of knee voltage; Reverse-breakdown region; None of these; Correct answer: 3. Reverse-breakdown region. Zener diode can be best defined as. Zener diode can be best defined as: Voltage clipper ...
Solution of the Problem 64-7 . Let's start solving this problem by analyzing the zener V Z2, where we know that the current in the load is variable, so the current through the zener is also is variable.Consulting the theoretical part we see that we are facing CASE 2.Then we will use the equations eq. 64-10 and eq. 64-11.
Solution of the Problem 64-10 . From the circuit, with the polaridad of V i, we see that when D 3 conducts like a zener diode, D 1 will conduct like an ordinary diode. Thus, considering the null currents in the circuit, the voltage on D 3 will appear on the output, ie, V o = - 3.6 volts.Note that D 1 will conduct simultaneously with D 3, when V i = - 3.6 - 0.65 = - 4.25 volts.
Electrical Engineering questions and answers; 2. (5 points each) Answer the following questions about the rectifier and Zener shunt regulator circuit bolnмmb. The Zener shunt regulator will operate properly as long as the Zener diode is conducting at least 50 mA in reverse breakdown.
