PoE Power Sourcing Preprocessing for Faster PD Startup

The control unit is segmented into a master control unit and a preprocessing unit with distinct functions. The preprocessing unit handles power detection and supply operations independently, while the master control unit focuses on system management. This segmentation allows parallel operation of management and power supply functions, resolving the contradiction between ensuring management reliability and improving power supply speed.

The preprocessing unit performs power detection and supply preparation in advance, before the main program of the master control unit completes. By conducting preliminary actions independently, the system can power on devices quickly without waiting for the full startup sequence, thus improving power supplying speed while maintaining management capabilities.

The initialization process is segmented between the master control unit and preprocessing unit. The preprocessing unit can initialize power-related components independently and concurrently with the master control unit's main program initialization, reducing total startup time while maintaining system stability through coordinated operation of both units.

The preprocessing unit maintains continuous power supply capability throughout the startup process, rather than waiting for complete initialization. This continuous useful action reduces startup time loss while the master control unit completes its initialization in the background, ensuring system stability is achieved without extending the functional startup time.