MOS tubes play an important role in the field of automotive electronics, from power supply to various types of power drive. Most of them are used as switching tubes, which can control the flow of current and realize the switching function of circuits, such as controlling battery charging and driving motors.

In addition, there are the following effects:

Voltage regulation: MOS tube is used for voltage regulation and stability in automotive circuits. By controlling the conduction state of MOS tube, the voltage in the circuit can be kept in a stable range to protect electronic equipment from overvoltage or undervoltage.

Power management: MOS tubes play a key role in power management, controlling the flow and distribution of electrical energy to ensure that all electronic devices in the vehicle receive appropriate power supply.

Efficiency improvement: MOS tube has the characteristics of fast switching speed and low on-resistance, which can improve the efficiency of the circuit, reduce energy loss, and thus prolong the service life of automotive electronic equipment.

The application of MOS tube in the automotive field is as follows:

Electric vehicles: MOS tubes are widely used in electric vehicles to control motor drive and battery management, achieving efficient energy conversion and vehicle power output.

Lighting system: MOS tube is used in the automotive lighting system to adjust the light brightness and control the light mode, improve energy efficiency and light stability.

Electronic stability system: MOS tubes play an important role in the vehicle's electronic stability system (such as ABS, ESP) to ensure the stability and safety of the vehicle in 

emergency situations.

Share a few scheme topologies

Automobile USB/rapid charging module solution

DC converter scheme:：

Car wireless phone/tablet charging module solution：

Key points of MOS tube selection

1. Power and voltage requirements: Select the appropriate power and voltage level of MOS tube according to the system requirements to ensure that it can operate stably within the required voltage range.

2. On-resistance: Consider the on-resistance of MOS tubes and select MOS tubes with low on-resistance to improve efficiency and reduce system energy consumption.

3. Switching speed: Select MOSFETs with appropriate switching speed to ensure the response speed and efficiency of the circuit. Fast switching speed can improve the dynamic performance of the system.

4. Thermal characteristics: Considering the thermal characteristics of MOS tubes, ensure that they can effectively dissipate heat and avoid overheating caused by system failure. Stable thermal characteristics help improve the reliability of the system