A semiconductor device that is used to switch or amplify electronic signals is known as a transistor whereas a power transistor is a type of transistor particularly designed to be used in high-power-based applications. As compared to normal transistors, these transistors are normally designed to be used in high-power applications like power amplifiers, high-power devices, DC-to-DC converters, etc. These transistors are made with silicon (Si) and are normally larger & robust. This article … [Read more...]

Generally, BJTs are available in two types; PNP and NPN which have three pins, used mainly for external connections. As compared to PNP, the flow of current in the NPN transistor will be from the collector terminal to the emitter. Generally, transistors are known as current-controlled devices because they control the input current. In both the PNP & NPN transistor’s conductivity, charge carriers play a key role. So, the majority of charge carriers in the NPN transistor are electrons whereas … [Read more...]

NPN transistor is one type of transistor where one P-type material is sandwiched between two N-type materials. The main function of this NPN transistor is to amplify the weak signal which enters the base terminal & generates a strong signal at the collector terminal. In this type of transistor, the electron movement direction will be from the emitter terminal to the collector. These transistors are mostly used as compared to PNP because electrons are the majority charge carriers in this … [Read more...]

An NPN Transistor is a type of three-terminal bipolar junction transistor (BJT) that is formed with one p-type semiconductor material by sandwiching in between two N-type semiconductor materials. In this type of transistor, the majority of charge carriers are electrons and the minority charge carriers are holes. The main function of this NPN transistor is to amplify the weak signal that is entering the base terminal & generate strong signals at the collector terminals. The direction of … [Read more...]