What is an insulated gate bipolar transistor? The structure, characteristics, principles, applications, installation, and development history of insulated gate bipolar transistors 2

3、 Principle

The working principle of IGBT is to use the voltage of the gate to control the conductivity of the drift layer. When the gate voltage is positive, the minority carriers in the gate region will be attracted to the vicinity of the gate, causing the drift layer to form an N-type conduction channel and the IGBT to conduct. When the gate voltage is zero or negative, the conducting channel disappears and the IGBT is turned off.transistors

4、 Application

IGBT is widely used in various power electronic devices, such as ADUM1400BRWZ-RL inverter, AC speed regulator, electromagnetic heater, electric vehicle control and other fields.

5、 Installation

When installing insulated gate bipolar transistors, the following points should be noted:

1. Environmental requirements: The installation environment should be dry, ventilated, and away from any objects that may cause electrostatic discharge.transistors

2. Heat dissipation design: The operation of IGBT generates a certain amount of heat, so it is necessary to ensure good heat dissipation. You can use heat sinks or radiators to help dissipate heat.

3. Lead connection: Connect the IGBT leads to the circuit board correctly, ensuring that the lead length is appropriate and will not affect signal transmission and current stability.

4. Insulation treatment: During installation, ensure sufficient insulation between IGBT and other metal components to avoid short circuits.transistors

5. Fixing method: Use appropriate screws or fixtures to fix the IGBT in the designated position to prevent movement or shaking.