Importance of FET power devices to systems in various fields
With the development of global intelligence, FETs required for ADAS, security, infotainment and other functions are used as the basic devices for power conversion, supporting digital, analog and other chips to complete functions.
Field-effect transistors can achieve high withstand voltage, high-speed switching and low on-resistance, which help reduce power consumption and system miniaturization, and have been widely used in photovoltaic energy storage, rail transit, smart grid, UPS power supply, robotics, and other fields.
The performance improvement of power FET mainly includes three aspects: higher switching frequency, higher power density and lower power consumption. In terms of device structure improvement, power devices have undergone changes in the device structure of Planar, Trench, Super Junction, etc., which further improves the power density and operating frequency of the device.
As the main force of intelligent development, the intelligent vehicle system needs to use a large number of field effect transistors to complete the control of the internal system. The field of charging piles also needs to use a large number of field effect transistors to complete the control of the system. Charging piles can be divided into three categories: public DC, public AC and dedicated. Among them, the high-power DC piles have the fastest charging speed, and a 150kW DC charger can add 200 kilometers of battery life to an electric vehicle in about 15 minutes.
In addition to automobiles, the industrial field is also one of the fields with the most applications of power semiconductor devices. Most industrial equipment requires the use of field effect transistors, and the industrial industry is developing in the direction of automation, and the demand for field effect transistors will increase on a large scale.
The consumer electronics market is also one of the major demand markets for field effect transistors. Although the demand for consumer electronics has declined in recent years, benefiting from its huge market, it can still bring a stable market share to power semiconductors such as field effect transistors.