Transistor Switch OFF

When the input is connected to logic zero (ground voltage), no current flows into the base of the transistor, since its base and emitter t...

Transistor Switch ON

Transistors can be configured to function as switches. As can be seen in figure bellow, an NPN transistor operating as a current controlled ...

Transistors

The flow analogy can also be used to model how a transistor operates in a logic circuit. The transistor is an amplifier. It uses a small a...