EE 3950 Chapter : EE3950 Class Notes Chapter 11
Document Summary
These are three terminal devices, where the current or t voltage at one terminal the input terminal, the input terminal, controls the flow of current between the two remaining terminals. Can be classified as: (cid:132) fet field effect transistor;; (cid:138) majority carrier device; (cid:138) unipolar device; (cid:132) bjt bipolar junction transistor; (cid:138) minority carrier device; (cid:138) bipolar device. Also known as igfet insulated gate fet; known as igfet. Mos transistors can be: (cid:132) n-channel; (cid:138) enhancement mode; (cid:138) depletion mode; d. D l ti (cid:132) p-channel; (cid:138) enhancement mode; Mosfets are identified by symbols like the ones shown below: Voltage at gate controls the flow of current between current between drain and source. Vds voltage between drain and source. source. When vgs = 0 then no current flows t d between drain and source. pn junction is pn-junction is reverse biased. The value of vgs where the drain current just begins t b i t j to flow.
