6 pn Diode Applications - Part 2 - Solution

6 pn Diode Applications - Part 2 - Solution - Tutorial pn...

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(1) Chapter 2 Questions – 42, 43, 44 and 45. Answers :- (42) a. 9V, 50mA, 0mA, 50mA b. 10V, 21.28mA, 24.17mA, 45.45mA c. 1.8k Ω d. 220 Ω (43) a. V Z = 12V, R S = 20 Ω , R L = 60 Ω b. 2.4W (44) V i(min) = 11.31V V i(max) = 15.86V (45) R S = 0.5k Ω I ZM 40mA (2) A zener diode having a breakdown voltage of 10V at 25 o C has a temperature coefficient of +5.5mV/ o C. It is to be temperature compensated by connecting it in series with three forward-biased diodes, as shown in Figure 2. Each compensation diode has a forward drop of 0.65V at 25 o C and a temperature coefficient of –2mV/ o C. (i) What is the temperature stability of the uncompensated zener diode? (ii) What is the breakdown voltage of the uncompensated zener diode at 100 o C? (iii) What is the voltage across the compensated network at (a) 25 o C and (b) 100 o C? (iv) What is the temperature stability of the compensated network? Answers -
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This note was uploaded on 01/11/2011 for the course EE 2106 taught by Professor Ytchow during the Spring '07 term at City University of Hong Kong.

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6 pn Diode Applications - Part 2 - Solution - Tutorial pn...

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