Nanowerk2 年
Transistors explained – what they are and what they do
and Field Effect Transistors (FETs). BJTs are controlled by current, while FETs are controlled by voltage. Within these categories, there are further subdivisions such as NPN and PNP BJTs and ...
Engineering360 News6 年
Transistors Information
The transistor is considered to be one of the most important inventions of the 20 th century because of its abundant use in most modern circuits and electronic systems. NPN and PNP are the two ...
Engineering360 News26 天
PNP Darlington Transistors
One limitation of PNP Darlington transistors is their requirement for a negative voltage at the base relative to the emitter, which can complicate circuit design compared to NPN configurations that ...
PBS7 年
Lesson 4
William Shockley improved on this design with his junction transistor, a three-layer sandwich of different types of semiconductor. The diagram illustrates the basic design of an NPN junction ...