Diodes

1.5 Switching circuits

1.7 Combinational logic systems

Diodes

  1. Principle

    1. Diodes only conduct when forward biased
    2. A diodes can be used to allow a current in one direction and prevent current in the opposite direction in parts of a circuit
    3. The forward volt drop across a forward biased silicon diode is about 0.7 V

  2. Uses

    1. A diode is used to protect transistors and comparators for circuits that drive motors and solenoids