
www.newnespress.com
Thermal Analysis and Design
Marty Brown
CHAPTER 12
Proper thermal design is essential to the overall design of a power supply. Overdissipation
failures account for probably the largest portion of the failures. Therefore, it is essential
that the designer understand its basic principles.
Thermal analysis is really no more diffi cult than Ohm ’ s Law. There are similar parameters
to voltage, resistance, nodes, and branches. For the majority of electronic applications,
the thermal “ circuit ” models are quite elementary and, if enough is known of the thermal
system, values can be calculated in a matter of ...