With the emphasis on environmental protection and sustainable development, electric vehicles have gradually become the development trend of the automotive industry because they can reduce energy consumption and environmental pollution. At the same time, various intelligent technologies required by electric vehicles are also constantly developing and upgrading. Among them, silicon carbide chips, as an emerging semiconductor material, have been widely used in the control system and drive system of electric vehicles. Tesla and other electric vehicle companies have chosen to use silicon carbide chips.
There are several reasons why silicon carbide chips are so popular with electric vehicles
1. Advanced silicon carbide chip technology
Silicon carbide chip is a new type of semiconductor material, which has higher electrical conductivity and stronger thermal stability than traditional silicon materials. Silicon carbide, a material better suited than silicon for making chips, has electronic properties that allow it to perform faster, run cooler and be smaller than its silicon-based counterparts.
Silicon carbide can withstand extreme environments such as high temperature, high voltage and high frequency, so it has broad application prospects in the control system and drive of electric vehicles, which makes it ideal for modern semiconductor electronics
A silicon carbide chip consists of multiple electrical layers including substrate, conductors, and isolation layers bonded together and bonded to the power management unit. Power Management Unit helps control the level of power boosted to each layer for superior performance and greater power efficiency
Silicon carbide chips have a higher electronic energy level and can withstand higher electric field strengths, so higher switching frequencies can be achieved, thereby improving the efficiency and power density of electric vehicles
SiC chips also have lower switching losses and higher thermal conductivity, allowing for higher power density and smaller size, improving the safety and reliability of electric vehicles
Silicon carbide chips can perform up to three times faster than conventional silicon chips, a performance boost that could improve a wide range of potential applications. In automotive electronics such as powertrains, control systems and infotainment systems, the speed of silicon carbide chips can reduce power consumption while still maintaining performance
2. Silicon carbide chips could improve the efficiency of electric vehicles
The efficiency of electric vehicles refers to the efficiency of converting electrical energy into kinetic energy, which is the cruising range of electric vehicles.
The use of silicon carbide chips can improve the efficiency of electric vehicles, including:
① Reduce power loss: SiC chips have better conductivity and can reduce power loss, thereby improving the energy utilization efficiency of electric vehicles
② Improve conversion efficiency: Using silicon carbide chips can achieve higher switching frequency and lower switching loss, thereby improving the conversion efficiency of electric vehicles
③ Increased charging speed: SiC chips have better electrical conductivity and can achieve higher charging speeds, thereby shortening the charging time of electric vehicles and improving usage efficiency
3. Silicon carbide chips improve the reliability of electric vehicles
The reliability of an electric vehicle refers to the stability and durability of the vehicle during use
The use of silicon carbide chips can improve the reliability of electric vehicles, including:
① Increase operating temperature: SiC chips have better thermal stability and can withstand higher operating temperatures, thereby improving the durability and reliability of electric vehicles
② Improve the working frequency: the silicon carbide chip has better conductivity and can achieve higher switching frequency, thereby improving the driving precision of the electric vehicle control and improving the stability and reliability of the vehicle
③ Improve anti-interference ability: silicon carbide chips have stronger anti-interference ability, which can effectively reduce the impact of external interference on the control system and drive system, and improve the stability and reliability of electric vehicles
④ Reduce the failure rate: SiC chips have better thermal stability and can withstand higher operating temperatures, thereby reducing the failure rate of the chip. The reliability and durability of silicon carbide chips can also improve the service life and reliability of electric vehicles.
⑤ Improve energy conservation and environmental protection: the use of silicon carbide chips can achieve higher efficiency and smaller size, thereby reducing energy consumption and environmental pollution, and improving energy conservation, environmental protection and sustainability of electric vehicles
SiC chips offer a number of advantages as power semiconductors in the field of electric vehicles. They offer high levels of efficiency, reliability, and durability, and allow for more compact and energy-efficient designs. They also have higher operating temperatures and switching speeds, making them ideal for improved performance in EVs. As the technology for SiC chips continues to improve, they are sure to become an increasingly important part of the powertrain of the electric vehicle of the future.
