Patent ID: 11953964
Assignee: DELTA ELECTRONICS, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 14:
15. An Ethernet power supply coupled to a positive end and a negative end of a load device through a bus positive terminal and a bus negative terminal, and configured to receive a DC voltage, the Ethernet power supply comprising:
a first control module, comprising a power terminal, and a first end of the first control module coupled to the bus negative terminal, and configured to control the power supplied by the Ethernet power supply to the load device, and
a second control module, coupled to the first control module, the bus positive terminal, and the bus negative terminal, the second control module comprising:
a path control circuit, configured to connect or disconnect a coupling relationship between the power terminal and the bus positive terminal,
a first control unit, coupled to the bus negative terminal and the path control circuit, and configured to provide a first valid control signal to drive the path control circuit from a turned-off state to a turned-on state when the negative end is connected to the bus negative terminal, and the first control module be correspondingly powered on to work, and
a second control unit, coupled to the first control module and the path control circuit, and configured to provide an invalid control signal to drive the path control circuit from the turned-on state to the turned-off state when the negative end is disconnected from the bus negative terminal, and the first control module be correspondingly powered off to rest,
wherein when the first control module is powered on to work, the first control module controls the second control unit to provide the invalid control signal when the negative end is disconnected from the bus negative terminal.