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  • Two car garages have a common gate which needs to open automatically when a car enters either of the garages or cars enter both. Devise a circuit that resembles this situation using diodes for this situation.

Two car garages have a common gate that needs to open automatically when a car enters either of the garages or cars enter both. Devise a circuit that resembles this situation using diodes for this situation.

Answers (1)

Explanation:-

The diodes act as switches, allowing current to flow only in the forward direction. The circuit functions as a logic OR gate, where the output is HIGH when any input is HIGH. The pull-down resistor ensures the output is LOW when no inputs are active.

Here, the OR gate is used to explain the situation:

So OR gate gives the desired output

A B Y=A+B
0 0 0
0 1 1
1 0 1
1 1 1
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