A system including: a photovoltaic (PV) cell; a radio frequency (RF) rectifier; a DC-DC converter connected to an output of the RF rectifier; and a control circuit configured to control an operation of the DC-DC converter, and configured to receive operating power from the PV cell.

A system including: a photovoltaic (PV) cell; a radio frequency (RF) rectifier; a DC-DC converter connected to an output of the RF rectifier; and a control circuit configured to control an operation of the DC-DC converter, and configured to receive operating power from the PV cell.

In one embodiment, a method includes receiving power delivered over a data fiber cable at an optical transceiver installed at a network communications device and transmitting data and the power from the optical transceiver to the network communications device. The network communications device is powered by the power received from the optical transceiver. An apparatus is also disclosed herein.

In one embodiment, a method includes receiving power delivered over a data fiber cable at an optical transceiver installed at a network communications device and transmitting data and the power from the optical transceiver to the network communications device. The network communications device is powered by the power received from the optical transceiver. An apparatus is also disclosed herein.

The present invention relates to an apparatus and a method for load balancing among multi-ports in reverse power feeding, and more particularly, to an apparatus and a method which, in the process in which a distribution apparatus performs load balancing among multi-ports by reversely receiving power from multiple customer premises at a distribution point, when reverse power feeding from a specific customer premise is stopped, since a power burden of a remaining customer premise is increased, which interfere with a communication service, can reduce power consumption on the distribution by releasing a link of a communication port connected with the corresponding customer premise as soon as the power feeding is stopped and provide a stable communication service by performing the load balancing only with respect to remaining communication ports.

The present invention relates to an apparatus and a method for load balancing among multi-ports in reverse power feeding, and more particularly, to an apparatus and a method which, in the process in which a distribution apparatus performs load balancing among multi-ports by reversely receiving power from multiple customer premises at a distribution point, when reverse power feeding from a specific customer premise is stopped, since a power burden of a remaining customer premise is increased, which interfere with a communication service, can reduce power consumption on the distribution by releasing a link of a communication port connected with the corresponding customer premise as soon as the power feeding is stopped and provide a stable communication service by performing the load balancing only with respect to remaining communication ports.

In one embodiment, a method includes receiving power delivered over a data fiber cable at an optical transceiver installed at a network communications device and transmitting data and the power from the optical transceiver to the network communications device. The network communications device is powered by the power received from the optical transceiver. An apparatus is also disclosed herein.

In one embodiment, a method includes receiving power delivered over a data fiber cable at an optical transceiver installed at a network communications device and transmitting data and the power from the optical transceiver to the network communications device. The network communications device is powered by the power received from the optical transceiver. An apparatus is also disclosed herein.

A system and method for adjusting power consumption of a power consumer (e.g., an intercom device) may include a power supply, the power consumer connected to the power supply through a transmitting device, and at least one processor. The at least one processor may be configured to obtain a first voltage associated with the power supply and a second voltage associated with the power consumer, and adjust an operation status of the power consumer at least based on the first voltage and the second voltage. The first voltage may be an output voltage of the power supply, and the second voltage may be an input voltage of the power consumer.

A system and method for adjusting power consumption of a power consumer (e.g., an intercom device) may include a power supply, the power consumer connected to the power supply through a transmitting device, and at least one processor. The at least one processor may be configured to obtain a first voltage associated with the power supply and a second voltage associated with the power consumer, and adjust an operation status of the power consumer at least based on the first voltage and the second voltage. The first voltage may be an output voltage of the power supply, and the second voltage may be an input voltage of the power consumer.