Dynamic Thermal Response and Voltage Feedback in Junction Transistors

The transient thermal response of transistor junctions has been described by Mortenson
¹
and Strickland
²
using mathematical and physical models characterized by a number of thermal time constants. Sparkes
³
pointed out the dependence of the electrical voltage feedback upon the thermal resistance of transistors, giving a relationship between thermal and electrical parameters of the devices. In a more recent paper Mueller
⁴
has developed the relationships describing the effect of thermal feedback on the electrical parameters of four poles in general.