The key feature of an IGBT is that it combines the characteristics of ______
a BJT and a MOSFET
The correct answer is 2. a BJT and a MOSFET.
An Insulated Gate Bipolar Transistor (IGBT) is a three-terminal power semiconductor device. Its key feature is that it combines the advantages of both Bipolar Junction Transistors (BJTs) and Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs).
Specifically:
- It inherits the high current carrying capacity and low saturation voltage from the BJT.
- It gets the high input impedance and ease of control from the MOSFET. This means it can be easily switched on and off with a small control signal, unlike BJTs which require a continuous base current to remain on.
This combination makes IGBTs highly efficient and suitable for high-power applications such as motor drives, power supplies, and solar inverters. Options 1, 3, and 4 do not accurately reflect the fundamental structure and operational characteristics of an IGBT.
Similar Questions
- Which device acts like an NPN and a PNP transistor connected base-to-base and emitter-to-collector?
Important Questions from Power Semiconductor Diodes and Transistors
- The maximum peak emitter current of UJT at 25°C is:
Diacs are primarily used as:
A modern power semiconductor device that combines the characteristics of BJT and MOSFET is:
Which of the following circuit is used to obtain pulse gate triggering?
A charger supplies 100 W at 20 V for charging the battery of a laptop. The power devices, used in the converter inside the charger, operate at a switching frequency of 200 kHz. Which power device is best suited for this purpose?
