Switching Diodes and Fast/ Ultra-Fast/ Super-Fast Recovery Rectifiers
As a standard Diode it converts alternating current (AC) to direct current (DC).
The faster response time (time between passage- and lockmode) trr (reverse recovery time)
Make she competend for higher frequencies.
As a freewheeling diode it provides in switchingcircuits for a closed currentcircuit, when the switching component (Transistor) is in the blockingmode.
Fast rectifier are used in all switching power supplies, motordrive applications etc.
Particularly where high frequencies and high voltages are at the same time.