Ultra -low energy consumption poE ware of supplying power

The utility model relates to an ultra -low energy consumption poE ware of supplying power relates to the power technology field, including PD equipment detection circuitry module, switch K1, switch K2, PD equipment detection circuitry module still includes the comparator, resistance R1, and resistance R2, input of comparator and the first contact connection of switch K1, another input meets reference voltage ref through resistance R2, the output of comparator is connected with the main power source, a resistance R1 termination voltage vcc, the other end is connected with switch K2 first contact, switch K1 second contact with poE system module is connected, and this switch K1 third contact is connected with the output module, look at and appraise in succession with poE system module switchK2 second contact, and this switch K2 third contact is connected with the output module. Adopt above -mentioned technical scheme, electricity back on poE power supply ware, auxiliary electrical powersource and the ultra -low