What is the role of the power board in a UPS system?

The power board in an Uninterruptible Power Supply (UPS) system is crucial for managing the various electrical functions of the UPS unit. One of its primary roles is to provide a fail-safe mechanism, ensuring that the UPS can switch to battery power seamlessly during a power interruption. This function prevents damage to connected devices and ensures that critical systems remain operational when the mains power is lost or fluctuates outside acceptable limits.

While charging the battery is certainly a function performed by the UPS, it is typically managed by the battery management circuitry rather than the power board itself. The regulation of operating temperature is usually handled by the cooling system or thermal sensors within the UPS design. Displaying battery health is often managed through the UPS's user interface or monitoring systems that communicate battery status information to users, rather than being a primary function of the power board.