Fundamentals of Electronic Component Thermal Resistance

Physical analysis of an electric resistor heating

“…Figure 4 emphasize the physical heating and cooling curves extracted directly from figure 3, which can be represented by standard math ematical models. The cooling is an exponential decay expressed as equation ( 4), and the heat ing fellows a model called bounded exponential growth or saturating exponential growth that expressed as equation ( 5) and is different of the traditional natural exponential growth expressed as equation (6).…”

“…In fact, the thermal resistance concept is widely used in several areas such as physics, chemistry, civil engineering, electronics, etc. Therefore, it includes numerous particularities that have his torically motivated several discussions [5,6].…”