We can distinguish the following types of diodes:
• Rectifier diodes are typically used for power supply applications. Within the power
supply, you will see diodes as elements that convert AC power to DC power;
• Switching diodes have lower power ratings than rectifier diodes, but can function better
in high frequency application and in clipping and clamping operations that deal with
short-duration pulse waveforms;
• Zener diodes, a special kind of diode that can recover from breakdown caused when
the reverse-bias voltage exceeds the diode breakdown voltage. These diodes are
commonly used as voltage-level regulators and protectors against high voltage surges;
• Optical diodes;
• Special diodes, such as varactors (diodes with variable capacity), tunnel diodes or
Schottky diodes.
