339 results about "Power over" patented technology

An improved wireless transmission system for transferring power over a distance. The system includes a transmitter generating a magnetic field and a receiver for inducing a voltage in response to the magnetic field. In some embodiments, the transmitter can include a plurality of transmitter resonators configured to transmit wireless power to the receiver. The transmitter resonators can be disposed on a flexible substrate adapted to conform to a patient. In one embodiment, the polarities of magnetic flux received by the receiver can be measured and communicated to the transmitter, which can adjust polarities of the transmitter resonators to optimize power transfer. Methods of use are also provided.

A method and apparatus for transmitting and receiving power over optical fiber is disclosed. In particular, a power over fiber system in which an optical network transmits electrical power via an optical signal and is also transmits data within the optical network as well. The optical signals include a high frequency data portion that includes the data to be transmitted, and either a constant or low frequency power signal portion. The optical signal is received and converted into an electrical signal by a photodetector/photodiode that is electrically filtered to separate the data signal from the power signal. The data signal is then processed using known techniques. The power signal can be conditioned and/or regulated, if necessary, and provided either directly to a terminal piece of equipment to provide all the required power thereto, or may be combined with locally provided power to contribute at least a portion of the power required by the equipment. The terminal piece of equipment may be a wireless access point.

System and methodology for supplying power to a powered device (PD) over a communication link, such as an Ethernet link. The system has a power supply device that provides power to the PD, and a dynamic power allocation mechanism that dynamically modifies power allocated to the PD in accordance with tasks of the PD.

Novel system and methodology for determining resistance of wires in a communication cable having at least two pairs of wires used for providing power from a power supply device to a powered device. A measuring mechanism may determine DC resistance of the wires before the power supply device applies power to the communication cable.

System, method, and apparatus are provided for harvesting electrical energy from a photovoltaic source of electrical energy. The photovoltaic source has power-generating characteristics defined by a family of voltage-current curves comprising points of maximum electrical power over a respective range of at least one of the following for the photovoltaic source: distinct illumination intensities and distinct temperatures. The apparatus is made up of a switching converter coupled to the photovoltaic source. The converter has an input voltage-current curve having a predefined functional relationship between the input voltage and the input current. The predefined functional relationship of the input voltage-current curve of the converter is configured to provide during operation of the converter an approximation with respect to at least some of the points of maximum electrical power for the photovoltaic source without having to perform current and voltage calculations corresponding to a maximum power from the photovoltaic source.

A powered device (PD) configured for receiving power over a communication link, such as an Ethernet link, has a power interface controller for implementing a power supply protocol. The power interface controller acquires multiple pieces of PD information representing multiple characteristics of the PD for transferring the PD information to a power supply device.

Apparatus and methods for transmitting power over non-adjacent multiple conducting pairs and aggregating power from the conducting pairs to power a remote electronic device. In an embodiment, the apparatus and method comprises a wiring closet which has power supplying capabilities for providing power to a plurality of conducting pairs. A remote termination is adapted to aggregate power provided to and transmitted by two or more non-adjacent conducting pairs. The aggregated power is supplied to a remote electronic device. Preferably, a plurality of power circuits provide power to the conducting pairs. Preferably one or more rectifier circuits aggregate power from the non-adjacent pairs to the remote electronic device.

A HVDC power grid including a multiplicity of voltage sourced converters arranged in a symmetrical monopole transmission configuration to transmit DC power over a DC power grid of transmission lines connected between the voltage sourced converters, and circuitry implemented for sensing and identifying a fault occurred on a section of a DC transmission line. In response to the sensing, the current on the faulted DC transmission line is controllably drawn down to a target current level, e.g., 50 amp, which will accommodate clearing of the faulted transmission line section by allowing switches located at each end of the faulted transmission line section to be able to open against such level of current without triggering an non-extinguishable or sustained arc across one of the switches. At least one of the switches is capable of opening when the current is reduced to the drawn down level to isolate the transmission line.

The present invention relates to a computer network and a method for using the network The network and method employ powered multiplexing connection devices which electronically couple two or more network devices to the network. The signals from the network devices to the network are multiplexed at the powered multiplexing connection devices and the signals from the network to the network devices are demultiplexed at the powered multiplexing connection devices. The multiplexing enables the various work-center devices to communicate with the network and, in some cases, to receive power over the network connection. The intelligent electronic circuitry is also capable of aiding in network security and management and in monitoring the status of the network infrastructure. A primary advantage of the disclosed invention is an enormous reduction in the network administrator's workload in that a significant portion of the labor involved in managing and modifying a network is alleviated or obviated by the powered, intelligent, multiplexing connection devices.

A system for backing up a computer in the event of a mains power failure, the system comprising: sensing means operative to sense a failure of mains power; means for receiving power over data communication cabling; a volatile memory; means for feeding power from the means for receiving power to the volatile memory; and an interrupt generating means for generating an interrupt to a processor responsive to the sensing means, the processor being operative responsive to the generated interrupt to store status information on the volatile memory.

A multiple processor integrated circuit has a first processor-first level cache combination powered by a first power terminal, and a second processor-first level cache combination powered by a second power terminal. There is common circuitry coupled to each processor-cache combination. In a particular embodiment, the processor-cache combinations are capable of receiving independently controlled power over the power terminals.

In accordance with a non-limiting example, an optical communications system includes a plurality of Customer Premises Equipment (CPE), each having a reverse power supply circuit and each connected to a wire pair and configured to transmit and receive data and provide reverse power over the wire pair. An Optical Network Unit (ONU) includes a plurality of communication boards. A respective communication port is connected to a selected wire pair and its associated CPE through which data is transmitted and received and power received therefrom. A power management circuit is connected to each of the communication ports and configured to receive power and provide power sharing and manage power consumption and power supply redundancy from the plurality of CPE through the communication ports.

A subsea oil and/or gas production system comprises a host production facility and a plurality of subsea wells. A fluid conveying network is provided that connects each subsea well to the host production facility. A separate electrical power and data network is provided for conveying direct current electrical power and data, operatively connected to each subsea well for providing each subsea well with data transfer and electrical power services. The use of direct current ensures that the electrical power and data network can provide power over much greater distances than currently available, and the use of separate networks for conveying fluids and for providing electrical power and data transfer allows for a much more flexible system.

A redundant powering system for a powered device receiving power over communication cabling, the redundant powering system comprising: a redundant power supply comprising a first power sourcing equipment and a second power sourcing equipment; a powered device; communication cabling connecting the redundant power supply to the powered device, the communication cabling comprising a first path connecting the first power sourcing equipment to the powered device and a second path connecting the second power sourcing equipment to the powered device, the first and second paths at least partially being constituted of a single structured cable, the at least one powered device comprising at least one signature impedance, the redundant power supply being operable so that power is operably supplied to the powered device from only one of the first and second power sourcing equipment.

A brushless generator with permanent-magnet multi-pole rotor disks and stator winding disks in their axial magnetic field includes integral electronics to efficiently generate regulated DC current and voltage from mechanical input power over a broad speed range. All power for the electronics is provided by rectifier diodes from its stator windings. Differential amplifiers provide stator voltage feedback signals. Its power rating is scalable, depending on the number of its disks. Having no iron cores and no gears, it incurs no cogging torque, and no gear friction. Integral power control electronics includes high-frequency pulse-width-modulated boost regulation, which provides regulated current at requisite voltage over its broad speed range. A main wind-powered embodiment to produce DC power for a constant voltage DC load over a broad speed range includes signal processing so output power varies according to the third power of speed. Combined boost-regulation, zero cogging torque, and no gearing, enable a wide speed range, for better power quality and higher wind energy yields.

A method and apparatus is disclosed herein for varying transmit power patterns in a multi-cell wireless transmission environment. In one embodiment, the method comprises varying transmit power coordination patterns for base stations in the wireless communication system to jointly vary base station power over a set of virtual channels over base stations within a cluster and across clusters of base stations; and jointly transmitting by groups of the base stations to one or more user terminals in their respective clusters based on the transmit power coordination patterns.

UE-aided channel selection within unlicensed frequency bands. A base station may communicate with UEs using LTE/LTE-A carrier waveforms (e.g., configured as a secondary cell) in the unlicensed frequency band. The base station may configure UEs for wide-band interference feedback for channels in the unlicensed frequency band. The measurements of wide-band signal strength may be performed by the UEs on channels for which the base station is not currently transmitting, or during silent periods of a configured secondary cell. The UEs may feedback an average total received power over a measurement bandwidth for one or more frequency channels of the unlicensed frequency band. The base station may receive the wide-band signal strength feedback from the UEs and identify potential frequency channels for channel selection for the secondary cell based on its own measurements of the candidate channels, and the wide-band signal strength feedback from the UEs.

A system for generating, delivering and distributing electrical power to network elements over a data communication network infrastructure within a building, campus or enterprise. Consolidating power distribution and data communications over a single network simplifies and reduces the cost of network element installation and provides a means of supplying uninterrupted or backup power to critical network devices in the event of a power failure. The invention includes power/data combiners that combine a data communication signal with a low frequency power signal. The combined signal is transported over the LAN infrastructure where a power/data splitter extracts the data signal and the power signal and generates two separate outputs. The power over LAN system of the present invention operates with high bandwidth data communication networks, i.e., 10 Mbps, 100 Mbps, 1000 Mbps. The electrical power distributed over the LAN can be delivered as DC or low frequency AC voltages which in either case will not interfere with data communications signals. The electrical power delivered over data communications cable can be transmitted using one or more spare pairs in the cable or over the receive and transmit wires.

A mobile telephone handset (1) has its circuitry (11) to be driven by a rechargeable battery (17). The handset can to perform a data processing operation such as a download or a memory defragmentation, which requires battery power over a considerable period of time and a battery sensor (20) is coupled to the circuitry for indicating whether the battery has sufficient capability to complete the data operation. The circuitry (11) is configured to cease the data processing operation in the event that the battery is indicated to have insufficient capability to complete the operation. A battery charging sensor (19) indicates when an external battery charger is connected and the download or defragmention process is preferably carried out using the power of the charger rather than the battery.

Apparatus enabling modular implementation of active optical cable (AOC) with multiple integrated functions including: integration of different types of data on the AOC via media conversion; distribution of electrical power over the AOC; electrical multiplexing data channels for optical fibers; integration of voltage regulators enabling AOC operation at different supply voltages; integration of voltage regulators to provide stable, low noise power source; ruggedized, blind-mateable electrical connectors; integration of electronics and optoelectronics inside a connector backshell; implementation of health monitoring and test channel enabling monitoring, test, and control of both ends of the AOC and monitoring and control of upstream systems and components; and enabling a form, fit, function replacement of existing electrical cables to improve SWaP, electromagnetic interference resiliency, length-bandwidth product, electromagnetic pulse resistance, signal integrity, system reliability, testability and maintenance. AOCs are customized for different connectors, pin-outs, electrical data combinations, power distribution and power supplies with minimal redesign/requalification.

The subscriber end of a network, such as a Fiber-To-The-Home (FTTH) network, utilizes a pair of wires to provide both power source (battery) status information and operating power over the pair of wires by superimposing tones, which indicate the status of the battery, onto a DC voltage on the pair of wires.