Learn power diodes, their role in rectification, applications in DC power supplies, and differences from small signal diodes handling high current.
What is power diode?
A power diode is a semiconductor PN junction diode used primarily in rectification circuits to convert alternating current (AC) to direct current (DC). The process of converting AC to DC is known as rectification, and power diodes are designed to handle larger currents and higher voltage levels compared to standard diodes. This makes them crucial components in many high-power applications such as DC power supplies, battery charging systems, and inverters. Key Characteristics of Power Diodes Power diodes have two terminals—an anode and a cathode—similar to conventional PN junction diodes. However, the construction of a power diode is more robust and can withstand higher power levels. Power diodes are optimized to handle high voltage and current capacities, ranging from hundreds of amperes (KA) of forward current and thousands of volts (KV) in reverse blocking voltage. Unlike small signal diodes, which are typically used in low-power, low-current rectification, power diodes have a much lar…
About the author
Prasun Barua is a graduate engineer in Electrical and Electronic Engineering with a passion for simplifying complex technical concepts for learners and professionals alike. He has authored numerous highly regarded books covering a wide range of elec…
