An embedded power supply apparatus is partially buried in an enclosed structure, is configured to provide a first DC voltage to a plurality of electronic devices, and includes a first power conversion circuit, a plurality of switch circuits, a human-machine interface module and a control circuit. The first power conversion circuit is configured to convert an input AC voltage into the first DC voltage and provide the first DC voltage to the switch circuits. The switch circuits each is configured to selectively transmit the first DC voltage to a corresponding electronic device of the electronic devices according to a corresponding first control signal of a plurality of first control signals. The control circuit is configured to receive a second control signal generated by the human-machine interface module, and generate the first control signals to the switch circuits according to the second control signal.

Electronic controller comprising: a power supply (11) connectable to a power supply network (12); at least one connector (13a, 13b, 13c) adapted to be connected to a load (14a, 14b, 14c) in order to supply it; a microcontroller (15) connected to the power supply (11) and to the at least one connector (13a, 13b, 13c) in order to apply to the latter a supply voltage in a controlled manner; at least one detection device (16a, 16b, 16c, 16d) configured to detect a current flow through the connector (13a, 13b, 13c). The microcontroller (15) is connected to the detection device (16a, 16b, 16c, 16d) and is configured to zero the supply voltage if, following application of the supply voltage, the detection device (16a, 16b, 16c, 16d) does not detect a current flow through the connector (13a, 13b, 13c).