![]() This gives us four variations of the MOSFET which include There are two main two groups of MOSFET ( Enhancement and Depletion),which can either be N-Channel or P-Channel. MOSFETs are three terminal devices consisting of a Gate (G), Source (S) and Drain (D). The first most common variation of the FET is the MOSFET which stands for Metal Oxide Semiconductor Field Effect Transistor. This type of transistor is voltage controlled, which means a small voltage at the input allows for a larger current to flow at the output. The three terminals of a FET include the Gate, Drain and Source. This is a current controlled transistor, which means a small current at the input allows a larger current to flow at the output.Ī BJT can be further divided into two classes PNP and NPN. Its three terminals are the Base, Collector, and Emitter. Types of transistorīJT stands for Bipolar Junction Transistor. ![]() The other pair is where the output current flows through. The control signal can either be a voltage or current. One pair of this set of three is where the control signal is applied. They commonly consist of three terminals. Construction of a transistorĬonstruction of a transistor commonly consists of placing an oppositely doped semiconductor between two similarly doped semiconductors. So it can function either as a switch or amplifier. They can be used to either conduct or insulate current or voltage.Īnother neat function of a transistor is the amplification of current or voltage. However, if you are familiar with transistors, MOSFETs and IGBTs you can skip these sections straight to the differences part of the article.Īs we just saw above, transistors are a type of semiconducting device, which in essence have the function of the humble switch. Since a MOSFET and IGBT are part of the transistor family, it will help to first learn a little more about the transistor. This article will take a closer look at MOSFETs, IGBTs and the differences between the two. These are just some of the many differences. While both of them share many similarities, they do differ in many of these key characteristics which include Like every other electrical and electronic component, transistors have key characteristics that determine how they function. There are many different variations of the transistor, and two of them which are used for high power applications are the MOSFET and IGBT. They helped revolutionise modern electrons as we know.
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