Ringing Phenomenon during Recovery of Power Diodes

In this whitepaper, the diode ringing phenomenon is reviewed. The phenomenon tends to appear under conditions where the forward current of the diode is small and the conduction period of the current is short. When a reverse voltage is applied to the diode after forward current flow, reverse current flows for an instantaneous moment. This reverse current is called recovery current. Depending on conditions of use, the recovery current may demonstrate oscillations. This oscillation may also be referred to as ringing.

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