Ross Wilcoxon Rockwell Collins Cedar Rapids, Iowa A thermal resistance network analysis begins by defining discrete points within a system, known as nodes, and the thermal resistance between each set of nodes. Boundary conditions for external heat inputs and reference temperature(s) are applied to the appropriate nodes. Equations to relate nodal temperatures can be generated … [Read more...]
A Simple Thermal Resistance Model – Isoflux Versus Isothermal
In most cases today thermal design for electronic products is performed with the aid of sophisticated computational fluid dynamics and heat transfer codes. Nonetheless, there may still be occasions when a thermal designer needs a quick estimate of the external thermal resistance of a package or heat sink that does not warrant the use of powerful computer codes. In such cases an … [Read more...]
