The symbol for an inverter is a triangle pointing towards an output, with a small circle or "bubble" at the output.
Here's a breakdown:
- The Triangle: Represents the amplifier or logic gate aspect of the inverter.
- The Circle (Bubble): This crucial element indicates the inversion function. It signifies that the output is the logical opposite of the input.
In digital logic circuits, an inverter (also known as a NOT gate) performs logical negation. This means if the input is high (1 or TRUE), the output is low (0 or FALSE), and vice versa. The symbol clearly represents this inversion.
Visual Representation:
Imagine a right-angled triangle pointing rightwards. The input line connects to the left side, and the output line connects to the rightmost point. The small circle or "bubble" is placed at the point where the output line connects to the triangle, clearly indicating the inversion.
Variations:
Sometimes, to represent an active-low input, you might see the bubble placed on the input line instead. This signifies that a low signal at the input activates the inversion process.
