Gate turn-Off thyristor (GTO)
Symbol of GTO A gate turn-off thyristor (GTO) is three terminal semiconductor device - made up of four layers of alternating P-type and N-type material. Just like a conventional thyristor,…
MOS Controlled Thyristor (MCT)
Symbol of Mos Controlled Thyristor An MCT or a MOS-controlled Thyristor is a semiconductor device with the combined capabilities of a thyristor and a MOSFET. It was introduced in the…
MOS Turn-Off Thyristor (MTO)
MTO stands for MOS turn-off thyristor. It is a high-power bipolar MOS thyristor that constitutes both MOSFET and Gate Turn-off thyristor (GTO). It was developed as a replacement for GTO. It…
TRIAC – Operation, symbol, circuits & applications
A TRIAC or TRIode for Alternating Current is a three-terminal bidirectional thyristor, meaning that can conduct current in both directions when activated properly. It is used in AC switching applications.…
Thyristors and their types
Thyristors are high-speed semiconductor switching devices that are made up of four layers of alternating p and n-type materials. They are used in AC/DC switching and AC power control applications.…
SCR – Silicon Controlled rectifier
A Silicon Controlled Rectifier (SCR) is a unidirectional semiconductor device that can be triggered into conduction by applying a positive gate current. It led to tremendous advancements in power semiconductor…
IGBT – Insulated Gate Bipolar Transistor
An insulated-gate bipolar transistor (IGBT) is a type of bipolar transistor that has an insulated gate terminal. The structure of the IGBT includes an input MOSFET which consists of the…
Difference between BJT and MOSFET
BJT and MOSFET are two types of semiconductor transistors. Even though both of them are transistors, they are different from each other in various aspects. By the end of this…
MOSFET – Structure, working principle, symbol and applications
A Metal Oxide Semiconductor Field effect transistors, commonly known as MOSFET, are semiconductor switching devices that have three terminals which are the gate, drain and source. They are unipolar transistors,…
Commissioning procedure for VFD (Variable Frequency Drive)
Commissioning of variable speed drive is the process of checking, inspecting, testing, and configuring the equipment at the project site so that it shall fulfill the technical and functional requirements…