D 4-8. Figure 4-48 shows a diagram for an automobile alarm circuit used to detect certain undesirable conditions. The three switches are used to indicate the sta- tus of the door by the driver's seat, the ignition, and the headlights, respec- tively. Design the logic circuit with these three switches as inputs so that the alarm will be activated whenever either of the following conditions exists: - The headlights are on while the ignition is off. . The door is open while the ignition is on. 48 Problem 4-8. +5 V +5 V Open Door Closed LED +5 V Alarm Ignition Logic circuit ON OFF +5 V Lights ON OFF

D 4-8. Figure 4-48 shows a diagram for an automobile alarm circuit used to detect certain undesirable conditions. The three switches are used to indicate the sta- tus of the door by the driver's seat, the ignition, and the headlights, respec- tively. Design the logic circuit with these three switches as inputs so that the alarm will be activated whenever either of the following conditions exists: - The headlights are on while the ignition is off. . The door is open while the ignition is on. 48 Problem 4-8. +5 V +5 V Open Door Closed LED +5 V Alarm Ignition Logic circuit ON OFF +5 V Lights ON OFF

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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