Overview

A large number of topics are included under this heading, consequently each subject will only briefly be presented. Some of these topics are: conductivity of semiconductors, diode equations, characteristic equations for JFETS and MOSFETS, and bipolar junction transistor small-signal device models.

It is important, especially so in the field of electronics, to pay attention to subscript notation. If the symbol is upper case it implies a dc or average value if the subscript is also upper case; if, on the other hand, the subscript is lower case, it may imply an rms or a function of frequency (either in the s-domain or the j ?-domain). If the symbol is lower case, and the subscript is upper case, a time varying function with a dc value is implied; while if the subscript is also lower case, the implication is a small signal time varying quantity without a dc When working examination problems, the reader is urged to take into context what seems reasonable, as many notational mistakes may inadvertently be shown in a text or on an examination problem.

Because of the complexity of this material it is particularly important to have a good reference text available along with review. Two especially good books that are widely used in this area and should be readily available are ones by Sedra & Smith ^[1] and Savant, et al ^[2]