Exercise 2: We consider the circuit of figure 2. The nominal value of E is equal to 20V. This voltage is reduced to the value U using the resistor Rp and a Zener diode with characteristics 100 et V₂ = 8.5V. The Figure 2 72 = diode's current Iz can varies between 2 mA and 50mA. We give Rp = 600 and R= = 2040. 1. What is a Zener diode used for? Give the expression of Iz as a function of E, U = Uz, R and Rp. Between which values the voltage U then varies? 2. We suppose that E can vary by 10%, which must be the corresponding value of Rp. E IR Rp Iz R U

Exercise 2: We consider the circuit of figure 2. The nominal value of E is equal to 20V. This voltage is reduced to the value U using the resistor Rp and a Zener diode with characteristics 100 et V₂ = 8.5V. The Figure 2 72 = diode's current Iz can varies between 2 mA and 50mA. We give Rp = 600 and R= = 2040. 1. What is a Zener diode used for? Give the expression of Iz as a function of E, U = Uz, R and Rp. Between which values the voltage U then varies? 2. We suppose that E can vary by 10%, which must be the corresponding value of Rp. E IR Rp Iz R U

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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