By adjusting the on and off of the IGBT to adjust the form of the output power, the motor is driven to drive the vehicle. This is the working principle of IGBT as a core component.
What is IGBT
IGBT, English full name Insulated Gate Bipolar Transistor, namely insulated gate bipolar transistor, it is the core device of energy conversion and transmission, power electronic device "CPU". From small appliances to induction cookers, to strategic industries such as new energy vehicles, rail transit, and smart grids, IGBTs play an extremely important role.
We know that the CPU, as an execution unit, relies on software control to convert the signal flow between 0 and 1, where 1 represents on and 0 represents off. As the "CPU" of electric vehicles in power, IGBT also uses 1 and 0, but it depends on the inverter control software to handle the power flow. In short, we can also think of an IGBT as a switch that controls large currents, but its maximum switching speed can reach tens of thousands of times per second.
The working principle of IGBT
By adjusting the on and off of the IGBT to adjust the form of the output power, the motor is driven to drive the vehicle. This is the working principle of IGBT as a core component.
The IGBT power module is the core power device of the inverter. The inverter is used to drive the motor to power the car. When the electric drive system is operating, the inverter takes direct current from the battery pack and converts it into alternating current to drive the motor. The degree of integration, control maturity, and reliability of the inverter are all closely related to the performance of the IGBT.
The use of IGBTs for power conversion can improve the efficiency and quality of electricity use, and it is highly energy-efficient and environmentally friendly.
IGBT market status
In the next few years, the new energy automobile market will enter the outbreak period, and the IGBT, which is the core component of the motor drive, will also usher in a golden period of development. The high-voltage and high-current chip technology used in IGBTs has a very high content and is a bright spot in the semiconductor industry. At present, the leading companies in the industry are Infineon, ABB, Mitsubishi and other foreign manufacturers. Infineon has a clear market advantage.
IGBTs have a crucial influence on motor performance and are also a key factor in whether an electric vehicle can have strong power. The XPT EDS electric drive system is equipped with the IGBT power module of the latest generation of Infineon HPdrive, which has higher power density and higher integration, which is one of the secrets behind the acceleration of 100km in ES84.4 seconds.
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