Question
Download Solution PDFWhen a diode is switching from conducting state to blocking state, it has stored charge which needs to be discharged before, it blocks reverse current, this time required is known as _______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
- The recovery time of a diode is a time interval in which the diode changes its states from forward bias to reverse bias and vice-versa.
- For a high-frequency signal, the recovery time should be as small as possible so that the diode can rectify the signal smoothly to maintain a proper switching operation.
- Since high-frequency signals have a low time period, the recovery time of a diode must be small.
- Hence, the switching frequency of a diode depends on reverse recovery time.
Additional Information
Where, IF = forward current during the positive half of V
IR = Reverse current during the negative half of V
Where, tr = recovery time
ts = storage time
tt = transient time
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