Automotive Traction Inverters
The heart of electric vehicle performance.
The Role of a Traction Inverter
A traction inverter is a core component of any Battery Electric Vehicle (BEV) or Plug-in Hybrid Electric Vehicle (PHEV). Its primary function is to convert the DC power stored in the vehicle's battery pack into the AC power needed to drive the electric motor. This conversion is essential for the motor's operation, enabling the vehicle to move and providing a crucial link between the power source and the drivetrain.
Modern traction inverters are designed for efficiency and reliability, playing a direct role in the vehicle's range, acceleration, and overall performance. They are a critical system that requires robust and high-performance components.
Traction Inverter System and Technology
Power Stage
The power stage is the core of the traction inverter, where the DC-to-AC conversion happens. This stage utilizes high-power switches like SiC MOSFETs and IGBTs. The document highlights the superior performance of SiC devices, which offer higher efficiency and are becoming the new industry standard.
Gate Drivers
Gate drivers are crucial for controlling the power switches in the inverter. They ensure efficient and reliable switching, especially in high-voltage applications. The document emphasizes the importance of a negative bias for SiC devices to prevent parasitic turn-on and ensure system stability.
Available Products
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