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Example 7-3: The reverse current in a certain 12 V, 2.4 W zener diode must be at least 5 mA to ensure that the diode remains in breakdown. The diode is to be used in the regulator circuit shown in Fig 7-9, where Vi can vary from 18 V to 24 V. Find a suitable value for RS and the minimur power dissipation that RS should have. rated Solution: Rs IZK = 5 mA & IZM= Pz/Vz=2.4/12 = 200 mA %3D Vz R2600 (when the switch S is open) = 0 & = 00

Example 7-3: The reverse current in a certain 12 V, 2.4 W zener diode must be at least 5 mA to ensure that the diode remains in breakdown. The diode is to be used in the regulator circuit shown in Fig 7-9, where Vi can vary from 18 V to 24 V. Find a suitable value for RS and the minimur power dissipation that RS should have. rated Solution: Rs IZK = 5 mA & IZM= Pz/Vz=2.4/12 = 200 mA %3D Vz R2600 (when the switch S is open) = 0 & = 00

Introductory Circuit Analysis (13th Edition)
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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Example 7-3: The reverse current in a certain 12 V, 2.4 W zener diode must be at least 5 mA to ensure that the diode remains in breakdown. The diode is to be used in the regulator circuit shown in Fig. 7-9, where Vi can vary from 18 V to 24 V. Find a suitable value for RS and the minimum rated power dissipation that RS should have. Rs Solution: IZK = 5 mA & IZM= Pz/Vz=2.4/12 = 200 mA V- Vz R26002 (when the switch S is open) = 00
Transcribed Image Text:Example 7-3: The reverse current in a certain 12 V, 2.4 W zener diode must be at least 5 mA to ensure that the diode remains in breakdown. The diode is to be used in the regulator circuit shown in Fig. 7-9, where Vi can vary from 18 V to 24 V. Find a suitable value for RS and the minimum rated power dissipation that RS should have. Rs Solution: IZK = 5 mA & IZM= Pz/Vz=2.4/12 = 200 mA V- Vz R26002 (when the switch S is open) = 00
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