39
The local hot spot formation in the cross-section of the SCR is avoided by
- AReducing the junction temperature
- BApplying gate current nearer to the maximum gate current
- CUsing only R loads
- DProper mounting of the SCR on heat sink
Answer not set
Log in or create a free account to reply and vote.
0
CCommunity
- Applying the higher gate current spreads the ions quickly and avoids hotspot formation
- If di/dt is greater than the spreading of charge carriers then localized heat generation will take place which is known as local hot spots; This may damage the thyristor
- To avoid local hot spots we use an inductor in series with the device as it prevents a high rate of change of current through it
- If di/dt is greater than the spreading of charge carriers then localized heat generation will take place which is known as local hot spots; This may damage the thyristor
- To avoid local hot spots we use an inductor in series with the device as it prevents a high rate of change of current through it
0
CCommunity
Applying gate current nearer to the maximum gate current.
0
CCommunity
Reducing the junction
0
CCommunity
Reducing the junction temperature