A transistor is a common electronic component whose main function is to amplify or control current.
According to the different structures and characteristics of transistors
Transistor amplifier circuit common base amplifier circuit common collector amplifier circuit
The input resistance of a common amplification circuit is large and the output resistance is small
The common base amplifier circuit has a small input resistance and a large output resistance
Simply put, determining the working state can be based on the size of Uce.
