The Thermal Runaway phenomenon in a BJT amplifier is primarily caused by:
ABreakdown of emitter insulation
BBase width modulation
CExcessive gate voltage applied to collector
DUncontrolled cumulative increase in collector current due to temperature rise
Explanation
Collector leakage current I_CBO increases with temperature, which increases I_C and power dissipation, leading to self-destruction if uncompensated.
No Comments