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How To Use Rectifier Diodes To Make An OR Logic Gate

How To Use Rectifier Diodes To Make An
OR Logic Gate

OR logic Gate

What’s In This Page?

Instructions for making an OR logic gate using diodes. Includes video explanations and demonstration.

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What This OR Gate Does

An OR logic gate performs a logical operation where the output is true (or high) if at least one of the inputs is true (or high). In other words, the output is false (or low) only when all of the inputs are false.

In this case, if either of the inputs is 12 volts, the current flows and can flow up to a maximum of 3 amps.

Making The Gate

For implementing an OR logic gate using 12v 3 amp diodes, you typically use standard silicon diodes, such as 1N4148 or 1N4001. Zener diodes and Schottky diodes are not typically used for basic logic gate implementations due to their different characteristics.

Here’s a basic schematic for implementing an OR gate using diodes:

diode or gate

In this setup, if either Input A or Input B is high (12V), current will flow through the corresponding diode (D1 or D2) and reach the output, pulling it high as well. If both inputs are low (0V), no current flows through the diodes, and the output remains low. This behavior effectively creates an OR logic gate.

 

Additional Information

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