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On-Board Chargers (OBC) are an essential part of the power supply system for electric vehicles. Its primary function is to convert grid alternating current into direct current to charge electric vehicle batteries. OBCs are usually integrated into the interior of cars and can be used to connect the AC power interface in the home or at public charging stations. The performance and design of OBC has a significant impact on charging efficiency and convenience for electric vehicles. OBC must have a high energy conversion rate to minimize energy losses during charging.

The 65A is a system that provides power to electric vehicles with a current rating of 65 amps. This system's main feature is its ability to provide higher currents. It's therefore suitable for electric vehicles with high power outputs such as large trucks or SUVs. These systems usually include high-capacity battery packs, along with charging and management gear that can handle high currents. In order to select a 65A battery system for an electric vehicle, it is important to consider a number of factors, such as the vehicle's expected range of travel, the charging infrastructure, and its power requirements. In addition, since handling large currents can generate large amounts heat, these systems are often equipped with thermal management equipment in order to prevent overheating.

The high-temperature-resistant electric vehicle power supply system is a power supply system that can operate stably in high-temperature environments. The system contains thermal management devices such as cooling fans and coolants. These regulate and monitor the temperature of battery in order to avoid overheating and affecting its performance and lifespan. In high-temperature environments, the internal resistance in the battery can increase. This may result in a reduction in charging and discharging efficiencies. In severe cases, thermal runsaway may occur resulting to reduced battery performance. A power supply system resistant to high temperature operation is essential to protect the performance and safety electric vehicles.

DC-DC Converters are essential to the electric vehicle power supply system. The main purpose of the converter is to convert high-voltage DC energy provided by the batteries into low-voltage DC energy required by other vehicle components (such as air conditioning, lighting, audio and audio systems, etc.). These converters are typically designed using switch-mode technology. This allows for compact and high-efficiency designs. Principle of operation: The input voltage is controlled by controlling the state of the switch element. This method of working can achieve high efficiency energy conversion, but it requires complex control strategies to ensure stable operation.