| 主权项 |
1. A power supply system, comprising:
at least two power supplies, the power supplies electrically connected to a load share bus, electrically coupled in parallel to output electrical power to a load, each power supply dynamically operating in either an active mode or a sleep mode according to the loading status, one of the power supplies being a determining-stage power supply of the power supplies operating in the active mode, each power supply comprising:
a control unit, electrically coupled to the load share bus, generating a wake-up signal or a sleep signal according to a load share signal from the load share bus, the load share signal indicating the loading status of the power supply system, wherein when the operation of the power supply changes from the sleep mode to the active mode, the control unit controls the power supply to operate from the sleep mode to the active mode according to the wake-up signal from a previous stage power supply, wherein when the operation of the power supply changes from the active mode to the sleep mode, the control unit generates the sleep signal;a first communication port, coupled to the control unit; anda second communication port, coupled to the control unit; wherein the first communication port of each power supply is coupled to the second communication port of the previous stage power supply, the second communication port of each power supply is coupled to the first communication port of the next stage power supply to establish a cascading communication architecture; wherein the first communication port is for receiving the wake-up signal from the second communication port of the previous stage power supply and outputting the sleep signal to the second communication port of the previous stage power supply, the second communication port is for receiving the sleep signal from the first communication port of the next stage power supply and outputting the wake-up signal to the first communication port of the next stage power supply. |
