How does the main control board of the 14KW dual gun AC charging station control the dual gun charging?

The main control board of the 14KW dual gun AC charging station achieves dual gun charging control through the following methods:

Overall circuit architecture design: 

• In terms of design philosophy, it is based on a unified circuit architecture for design. Core components such as control chips and main power conversion circuits can simultaneously distribute power and control charging for two charging guns. Through complex circuit topology and intelligent power allocation algorithms, the total power of 14KW is dynamically allocated to two charging guns based on the vehicle's access status and battery status. For example, when only one vehicle is connected, all 14KW power can be allocated to this charging gun; When two vehicles are connected simultaneously, power can be allocated reasonably according to vehicle needs, such as 7KW+7KW, or 8KW+6KW, etc.

Power module integration: 

• From the perspective of power modules, it may use more integrated power devices. The power level of these power devices can meet the total output requirement of 14KW, and the power can be flexibly distributed to two charging guns through internal control circuits. Compared with using two independent 7KW motherboards, this integrated power module has advantages in cost, space occupation, and flexibility in power allocation. For example, some advanced charging station motherboards use new power semiconductor modules that can dynamically adjust the size and direction of output power based on control signals, more effectively achieving power distribution for dual gun charging.

Coordination of control module: 

• In terms of control module, there is a dedicated microcontroller (MCU) or digital signal processor (DSP) to coordinate the charging process of the two charging guns. It is not simply adding the control functions of two 7KW motherboards, but has an independent control logic. It can simultaneously monitor the status of two charging guns, including charging current, voltage, vehicle battery information, etc., and make comprehensive judgments and decisions based on this information. For example, when the vehicle battery corresponding to a charging gun is fully charged or experiences abnormal conditions, the control module can quickly adjust the power of another charging gun, or stop the operation of the abnormal charging gun, while allocating more power to another normal charging gun to ensure the safety and efficiency of the charging process.