Power supply device
First Claim
1. A power supply apparatus, which supplies power to an equipment via a cable, comprising:
- a power receiving section that receives supply of the power from a power line;
a power line communicating section that transmits a communication signal to the equipment via the cable;
a power supply limiting section which is installed between the power receiving section and the equipment, allows the communication signal from the power line communicating section to pass to the equipment, and limits the supply of the power to the equipment;
a power supplying section which is installed between the power receiving section and the equipment and passes the power to the equipment;
a connecting section to which the equipment is connected and which supplies the power to the equipment;
a voltage detecting section that detects a voltage of the connecting section;
a control section that controls passage of the power by the power supplying section, if reduction of the voltage of the connecting section is detected by the voltage detecting section; and
a storage section that stores registered information of the equipment;
wherein the power line communicating section performs communication with a second power line communicating section of the equipment, and performs authentication processing whether or not the equipment is registered in the registered information, and transmits a control signal to the control section to enable passage of the power by the power supplying section if identification information from the second power line communicating section corresponds to the registered information.
2 Assignments
0 Petitions
Accused Products
Abstract
There is provided a power supply apparatus capable of supplying information as a power line communication signal superimposed on a voltage of a commercial frequency, although currents of the commercial frequency are not supplied to power receiving side external equipment, and capable of supplying power to a specific external apparatus together with the power line communication signal, by controlling supply of the currents of the commercial frequency to the external apparatus. This apparatus includes at least a power receiving section that receives the supply of the power from a power line; a power line communicating section that superimposes the power line communication signal on the voltage, which is supplied to the power receiving section, and transmits the power line communication signal to the equipment; and a power supply limiting section which is installed between the power receiving section and the equipment, allows the power line communication signal to pass and limits the supply of the power to the equipment.
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Citations
10 Claims
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1. A power supply apparatus, which supplies power to an equipment via a cable, comprising:
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a power receiving section that receives supply of the power from a power line; a power line communicating section that transmits a communication signal to the equipment via the cable; a power supply limiting section which is installed between the power receiving section and the equipment, allows the communication signal from the power line communicating section to pass to the equipment, and limits the supply of the power to the equipment; a power supplying section which is installed between the power receiving section and the equipment and passes the power to the equipment; a connecting section to which the equipment is connected and which supplies the power to the equipment; a voltage detecting section that detects a voltage of the connecting section; a control section that controls passage of the power by the power supplying section, if reduction of the voltage of the connecting section is detected by the voltage detecting section; and a storage section that stores registered information of the equipment; wherein the power line communicating section performs communication with a second power line communicating section of the equipment, and performs authentication processing whether or not the equipment is registered in the registered information, and transmits a control signal to the control section to enable passage of the power by the power supplying section if identification information from the second power line communicating section corresponds to the registered information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification