Basic Introduction To Transistors

Transistor is a solid-state semiconductor device (including diodes, triodes, field effect transistors, thyristors, etc., sometimes referred to as bipolar devices), with functions such as detection, rectification, amplification, switching, voltage regulation, and signal modulation. . The transistor acts as a variable current switch that can control the output current based on the input voltage. Different from ordinary mechanical switches (such as relays and switches), transistors use electrical signals to control their own opening and closing, so the switching speed can be very fast, and the switching speed in the laboratory can reach more than 100GHz.