Question

+5.0 V 1.0 k? 1.0 k? NC switches (Doors, windows, etc.) 1/4 7400 1/4 7400 Q Ready Standby Enable Reset +5.0 V 330 ? 1/4 7400 1/4 7400 1/6 7404 Q? Alarm indicator (Red LED) FIGURE 14–5 Simple burglar alarm.

          +5.0 V
1.0 k?
1.0 k?
NC switches (Doors, windows, etc.)
1/4 7400
1/4 7400
Q
Ready
Standby
Enable
Reset
+5.0 V
330 ?
1/4 7400
1/4 7400
1/6 7404
Q?
Alarm indicator (Red LED)
FIGURE 14–5
Simple burglar alarm.

Added by Christine P.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Arpit Giri

Step 1

0kΩ, 330Ω) - NC switches (connected to doors and windows) - Red LED (alarm indicator) - +5.0V power supply Show more…

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Show how the burglar alarm of figure could be constructed with one fourth of a 7475A D latch. The data input represents switches connected to windows and doors. The enable input is pulled HIGH when the system is activated or LOW for standby. To reset the system, put a momentary ground on the Q output as shown.