What are IGBT Transistors?

IGBT, or Insulated Gate Bipolar Transistors, refers to a special type of semiconductor device that is designed to operate as a switching device. They are used to allow and/or stop power flow. IGBT transistors are a blend of two different types of transistors – bipolar transistors and MOSFET. 

Different types of IGBT transistors are available in the market, but they are usually categorised based on a multitude of parameters including collector current, maximum voltage, switching speed, and packaging type. Choosing the type of IGBT transistor often depends on certain exact requirements like the precise power level, the application, and so on.

How do IGBT Transistors work?

IGBT transistors possess three terminals, which are used to apply voltage to a semiconductor. The voltage changes the properties that enable them to block and allow power flows in the off and on state respectively. A metal-oxide semiconductor gate controls the terminals.

Applications

IGBT transistors are used extensively across different electronic and electrical applications, encompassing industrial appliances, consumer electronics, aerospace technology, etc. They are used across the following industrial sectors:

• Transportation
• Aerospace 
• Energy sector
• Consumer sector

More commonly, IGBT transistors are used to switch on and off electrical appliances like air conditioners, electric cars, trains, uninterruptible power supplies, and welding instruments.