Entries |
Document | Title | Date |
20080211302 | Assist device - The present invention provides a higher-performance assist device which is safer by using a wireless charging technique. The assist device includes a detecting portion and an assist device driving portion. The detecting portion includes a sensor, a first transmitting/receiving circuit, a first data processing circuit, a first charging circuit, and a first battery. The assist device driving portion includes a driving portion, a second data processing circuit, a second transmitting/receiving circuit, a second charging circuit, and a second battery. Electromagnetic waves are transmitted from the second transmitting/receiving circuit provided in the assist device driving portion, and the first transmitting/receiving circuit provided in the detecting portion receives the electromagnetic waves. Induced electromotive force generated at this time is input to the first charging circuit through the first data processing circuit provided in the detecting portion, and the first battery provided in the detecting portion is charged. | 09-04-2008 |
20080217995 | Power Cable Line - In a DC power transmission and distribution line, a power cable line for making it possible to easily supply power to various electric power machines used for operation of the line is provided. | 09-11-2008 |
20080224536 | Transmission Line Structure for Power Line Communication and Power Line Switch Used Therein - A power line switch apparatus is provided for use in a power line communication system that transmits a signal through a power line that feeds a power supply current. In the power line switch apparatus, a switch section is inserted in the power line to make or break connection of the power line. A power line filter is connected in series to the switch section and inserted in the power line, the power line filter being used to pass the power supply current and to cut off the signal of the power line communication system. A by-pass circuit is connected in parallel with the series connection of the switch section and the power line filter, the by-pass circuit including a by-pass filter for cutting off the power supply current and passing the signal of the power line communication system. | 09-18-2008 |
20090195063 | SMART POWER SUPPLY - A power supply, such as for powering and supplying communication data to devices connected with a low voltage line, is disclosed. For example, a converter device is coupled with an alternating current voltage source. The converter device down-converts an alternating current voltage to a direct current voltage. A switching device is in communication with the converter device. A processor is in communication with the switching device. The processor outputs a signal to the switching device. The switching device generates a square wave signal as a function of the signal from the processor and the direct current voltage. A remote device is controlled by data encoded in the square wave signal. | 08-06-2009 |
20090195064 | SMART CONTROL DEVICE - A control device, such as a device for connecting with and providing control data on a low voltage line, is provided disclosed. The control device includes a power supply that generates a DC voltage from an input voltage communicated via a low voltage line by a power source. The control device also includes a receiver that extracts timing data from the input voltage and output circuitry that is operable to communicate information to the power source via the low voltage line. | 08-06-2009 |
20090267409 | POWER LINE COMMUNICATION APPARATUS - A power line communication apparatus includes power lines disposed independently and individually, for connecting various loads to a battery by way of fuses, respectively, an inductor means disposed at an end portion of each of the above-mentioned power lines on a side connected to the above-mentioned battery, and an information means for transmitting information by way of each of the above-mentioned power lines. | 10-29-2009 |
20100133899 | TWO-CONDUCTOR FIELD DEVICE FOR PROCESS AUTOMATION TECHNOLOGY FOR CONNECTING AT LEAST ONE SENSOR ELEMENT - A two-conductor field device for process automation technology for connecting at least one sensor element includes a first supply part, which via a first 2-conductor connection is connectable with a fieldbus. The field device is supplied completely with energy via the fieldbus. The two-conductor field device includes a second supply part, which is connected to the first supply part and which serves via a second 2-conductor-connection for energy supply of a sensor bus. Further provided are a fieldbus communication unit, which is connected with the first 2-conductor-connection and with the first supply part and which serves for data-exchange via the fieldbus, and a sensor bus communication unit, which is connected with the second 2-conductor-connection and the second supply part and which serves for data exchange via the sensor bus. Connected with the fieldbus communication unit, the sensor bus communication unit and the first supply part is a processing module. The fieldbus and the sensor bus are galvanically isolated from one another. | 06-03-2010 |
20100194189 | POWER DISTRIBUTING SYSTEM, POWER TRANSMITTING DEVICE, POWER RECEIVING DEVICE, POWER TRANSMITTING METHOD AND POWER RECEIVING METHOD - There is provided a power distributing system including at least one power transmitting device for transmitting power and at least one power receiving device for receiving the power transmitted from the power transmitting device. The power transmitting device includes a power generating means for generating power, and an information transmitting means for transmitting information containing power information related to the power generated by the power generating means and specific information on the power generating means, and the power receiving device includes an information receiving means for receiving the information transmitted by the information transmitting means and a power consumption control means for controlling consumption of power generated by the power generating means based on the information received by the information receiving means. | 08-05-2010 |
20100194190 | Midspan Powering in a Power Over Ethernet System - A midspan power sourcing equipment (PSE) for operation with power over Ethernet (PoE). The midspan PSE provides powering over wire pairs that are also used for data communication. To ensure compatibility with legacy Ethernet devices, the ports used for transmission of data are designed to present an increased level of inductance. | 08-05-2010 |
20100201188 | MAGNETIC ISOLATION OF POWER SOURCING EQUIPMENT CONTROL CIRCUITRY - A circuit for providing electrical isolation of Power Sourcing Equipment (PSE) circuitry from external circuitry in a Power over Ethernet (PoE) system has an inductive circuit for providing an isolation barrier to electrically isolate an isolated side of the isolation circuit from a non-isolated side of the isolation circuit. A signal path circuitry is configured for transferring bidirectional and/or unidirectional signals over the isolation barrier between respective nodes at the isolated and non-isolated sides. | 08-12-2010 |
20100213759 | DIGITAL SWITCH COMMUNICATION - In one example, an electric circuit may be provided that is coupled to a line. The electric circuit may include a switch connected in series with a load, where the switch and the load are in series between two conductors of the line. The line may provide power to the load. The electric circuit may also include a resistive element connected in parallel with the switch and in series with the load. The switch may be configured to short circuit the resistive element when closed such that the voltage on the line varies between two voltage levels when the switch is opened and closed. The line provides power to the load when the switch is opened and when the switch is closed. | 08-26-2010 |
20100225161 | Power mains distribution panel data link - A power mains distribution or breaker panel, and individual circuit breaker or relay therein having a circuit threacross providing a data path independent of the circuit breaker or relay operation. Alternate embodiments include circuits to control the data path and data path characteristics from data provided by either the line or load side of the power mains panel. | 09-09-2010 |
20100259097 | MODULAR POWERLINE ADAPTERS AND METHODS OF USE - Embodiments of modular powerline adapters are generally described herein. Other embodiments, examples, and related methods are also described herein. | 10-14-2010 |
20110156477 | AUDIO SYSTEM ADAPTERS FOR AUDIO SIGNAL DISTRIBUTION USING ELECTRICAL EXTENSION CABLES - Audio cables used in deploying audio equipment are typically selected to minimize signal transmission losses and may be chosen based on a distance between, and terminations of, an amplifier system and a loudspeaker system. Since this is usually unknown prior to deployment, multiple audio cables with different sizes and terminations and a variety of electrical extension cords to connect to a power supply line are transported. A loudspeaker adapter for the loudspeaker system and an amplifier adapter for the amplifier system can be used to interconnect the two systems via electrical extension cords. This precludes the need for transporting a large number of audio cables, and allows for interconnecting the loudspeaker and the amplifier systems without prior knowledge of the distance between the systems. Safety hazards and component damage can also be minimized by not connecting a hot terminal in the AC connectors of the loudspeaker and amplifier adapters. | 06-30-2011 |
20110169326 | Method and apparatus for distributing powerline communications signals - A system for using Powerline Communications (PLC) as a means to solve various flat wire limitations. The PLC modem connects to the electrical power line and can communicate with devices on the powerline network. The PLC data is then coupled to the flat wire, which conducts the data to the end device. Encoding/decoding of the PLC data can be done either at the electrical power interface or at the device end of the flat wire. | 07-14-2011 |
20110254365 | Connecting Apparatus for Connection of Field Devices - A connecting apparatus for connection of field devices comprising a bus connection for connection to a bus, a field device connection for connection for a field device, a power supply path and a signal path, wherein the power supply path and the signal path are arranged in parallel with one another between the bus connection and the field device connection such that a supply voltage carried on the bus is isolated from a signal, which is likewise carried on the bus, by a first coupling unit arranged in the power supply path and a second coupling unit arranged in the signal path. | 10-20-2011 |
20110254366 | DATA TRANSMISSION DEVICE - The invention relates to a data transmission device for transmitting data between an Ethernet connection ( | 10-20-2011 |
20110273007 | NETWORK SYSTEM - Provided is a network system capable of effectively managing an energy source. | 11-10-2011 |
20120007422 | System and Method for Passing PLC Signals from a First Electrical Line to a Second Electrical Line - In accordance with one embodiment of the present disclosure, a method may include receiving, at a first plug link device prong, a Powerline Communication (PLC) signal from a first main electrical line. The method may further include transferring the PLC signal from the first plug link device prong to a first plug link device electrical line. The method may also include passing the PLC signal from the first plug link device electrical line to a second plug link device electrical line. The method may also include transferring the PLC signal from the second plug link device electrical line to a second plug link device prong. The method may also include sending, from the second plug link device prong, the PLC signal to a second main electrical line. | 01-12-2012 |
20120062026 | Power and Data Solution for Remote Low-Power Devices - Systems and methods include a voltage transformer connected to a power source. The voltage transformer transforms a high voltage of the power source to a first low voltage signal. Regulators are connected to the voltage transformer, and the regulators receive the first low voltage signal from the voltage transformer and convert the first low voltage signal to a second low voltage signal. A remote device is connected to each of the regulators. The remote device is powered by the second low voltage signal from the regulator to which it is connected. | 03-15-2012 |
20120098328 | Method And Apparatus For Distributing Power And Data On A Single Conductor Output Line - Light Emitting Diodes (LEDs) are increasingly used in illumination applications. To control multiple Light Emitting Diodes (LEDs), or any other controllable light source, this document introduces a single-wire multiple-LED power and control system. Specifically, individually controlled LED units are arranged in a series configuration that is driven by a control unit located at the head of the series. Each of the individually controlled LED units may comprise more than one LED that is also individually controllable. The head-end control unit provides both electrical power and control signals down a single wire to drive all of the LED units in the series in a manner that allows each LED unit to be controlled individually or in assigned groups. | 04-26-2012 |
20120319467 | Method and A Device for Reducing the Electricity Consumption Associated with a Communications Line - A method and device are provided for reducing electricity consumption associated with a communications line having a set of N carriers of predetermined power suitable for conveying information to a receiver device. The method is adapted to determine first and second groups, each having respectively at least one of the carriers of the set N; to determine a volume of information to be conveyed on the N carriers during a unit of time; and if the determined volume is less than a predetermined threshold, to allocate a power less than the predetermined power to the carriers of the second group, the power of the carriers of the first group being maintained. | 12-20-2012 |
20120319468 | POWER OVER ETHERNET PRIORITIZATION SYSTEM AND METHOD FOR SURVEILLANCE CAMERAS - The present invention provides a system and method for prioritized application of operational power receiving over a data transmission cable. The system includes a primary component, at least one secondary component, and a power supply. The system further includes a data transmission cable for transmitting operational power from the power supply to the primary component and the at least one secondary component, and for transmitting data between the primary component and a remote station. The system further includes a splitter for separating the operational power from the data received over the data transmission cable, and prioritizing delivery of the operational power to the primary component and the at least one secondary component, wherein at least a threshold level of power is delivered to the primary component, and available operational power in excess of the threshold level is delivered to the at least one secondary component. | 12-20-2012 |
20130002012 | Two-Wire Power And Communications For Irrigation Systems - A two-wire power and communication system is provided, having a decoder that draws a constant amount of current for communication signals despite changes in the voltage on the power and communication wires. In one example, decoders have a constant current sink circuit that includes a shunt regulator that controls a field effect transistor. | 01-03-2013 |
20130009459 | CONNECTING DEVICE FOR CONNECTING ELECTRICAL POWER SUPPLY LINES OF DRILLING AND PRODUCTION FACILITIES - A connecting device, for example, a plug ( | 01-10-2013 |
20130057056 | POWERED DEVICE CLASSIFICATION IN A WIRED DATA TELECOMMUNICATIONS NETWORK - In a wired data telecommunication network power sourcing equipment (PSE) coupled to a powered device (PD) carries out an inline power discovery process to verify that the PD is adapted to receive inline power, then a plurality of classification cycles are carried out to convey a series of inline power classes back to the PSE. The series of inline power classes may all be the same, in which case the PD is legacy equipment and is adapted to receive the power level corresponding to that class. If they are not all the same, information is thus conveyed to the PSE which may, for example, correspond to a specific power level to be applied or to other information. | 03-07-2013 |
20130076118 | WIRE CONNECTING METHOD AND CONVERTER STATION FOR ULTRA-HIGH VOLTAGE DIRECT CURRENT POWER TRANSMISSION, AND ULTRA-HIGH VOLTAGE DIRECT CURRENT POWER TRANSMISSION SYSTEM - Connection methods for UHVDC transmission at rectification side and at inversion side, UHV converter stations at rectification side and at inversion side, and an UHVDC transmission system are disclosed. The present invention employs a manner of multiple drop points to solve the problem of poor security stability of electric grid caused by feeding a large amount of power via one point. | 03-28-2013 |
20130082516 | SIGNAL AND POWER TRANSMISSION SYSTEM - In a signal and power transmission system, a primary coil and a secondary coil magnetically coupled to the primary coil and connected to an electrical path are provided. An encoder encodes a target signal to be transmitted to produce a pulse code signal, and a voltage applying unit applies a voltage signal based on the pulse code signal to the primary coil as an input voltage signal. A decoder decodes an output voltage signal induced in the secondary coil using a variation in the output voltage signal into a decoded signal corresponding to the target signal. The output voltage signal is induced in the secondary coil based on the input voltage signal. A rectifier rectifies a current flowing through the electrical path connected to the secondary coil according to the output voltage signal induced in the secondary coil, thus outputting a rectified current as power. | 04-04-2013 |
20130113275 | SWITCHING OF CONDUCTOR PAIR IN POWER OVER ETHERNET SYSTEM - Technique for providing power to a powered device (PD) over a cable having first and second sets of twisted pairs, such as signal pairs and spare pairs. Power Sourcing Equipment (PSE) circuitry is coupled via a first switch to the second set, e.g. to the spare pairs. A switch control circuit turns the first switch off to enable the PSE circuitry to perform a prescribed operation in connection with the PD over only the first set, e.g. over the signal pairs, and turns the first switch on to enable the PSE circuitry to perform the prescribed operation in connection with the PD over the first and second sets. | 05-09-2013 |
20130154348 | POWER FEEDING SYSTEM AND METHOD - A center device performing power feed control generates a control signal for controlling supply and suspension of power to a main load of a remote terminal and transmits the control signal by superimposing the control signal on the power to be supplied to the remote terminal. The remote terminal includes a power-receiving side unit, a switch that connects the power-receiving side unit with the main load when the switch is on and disconnects the power-receiving side unit from the main load when the switch is off, and a control signal receiver that receives the control signal superimposed on the power transmitted from the center device to turns the switch on or off in accordance with the control signal received at the control signal receiver. | 06-20-2013 |
20130162017 | ADAPTER - An institute of electrical and electronics engineers (IEEE) 1394 device adapter includes first and second conversion circuits, a switch unit, and an IEEE1394 interface. The first conversion circuit includes a digital to analog (D/A) converter and a coupler. The second conversion circuit includes an analog to digital (A/D) converter and a decoupler. When the switch unit connects the first conversion circuit to the IEEE1394 interface, the D/A converter converts an data signal into a first carrier signal. The coupler couples the first carrier signal to an alternating current (AC) voltage. When the switch unit connects the second conversion circuit to the IEEE1394 interface, the decoupler divides an AC voltage coupled with a second carrier signal into the second carrier signal. The A/D converter converts the second carrier signal into a data signal, and outputs to the IEEE1394 interface. | 06-27-2013 |
20130162018 | ADAPTER - A universal serial bus (USB) device adapter includes first and second conversion circuits, a switch unit, and a USB interface. The first conversion circuit includes a digital to analog (D/A) converter and a first coupler. The second conversion circuit includes an analog to digital (A/D) converter and a second coupler. When the switch unit connects the first conversion circuit to the USB interface, the D/A converter converts the digital signals representing data into an analog form suitable for transmission over an AC voltage as a carrier wave. The first coupler couples the analog form to a first alternating current (AC) voltage. When the switch unit connects the second conversion circuit to the USB interface, the second coupler decouples and separates the first AC voltage from the analog form data. The A/D converter converts the analog form data into digital data, and outputs the data to the USB interface. | 06-27-2013 |
20130162019 | ADAPTER - A serial interface device adapter includes first and second conversion circuits, a switch unit, and a serial interface. The first conversion circuit includes a digital to analog (D/A) converter and a coupler. The second conversion circuit includes an analog to digital (A/D) converter and a decoupler. When the switch unit connects the first conversion circuit to the serial interface, the D/A converter converts a first digital signal representing data into a first analog form data. The coupler couples the first analog form data to a first alternating current (AC) voltage. When the switch unit connects the second conversion circuit to the serial interface, the decoupler decouples a second AC voltage coupled with a second analog form data into the second analog form data. The A/D converter converts the second analog form data into a second digital signal representing data, and outputs to the serial interface. | 06-27-2013 |
20130162020 | ADAPTER - An audio device adapter includes first and second conversion circuits, a switch unit, and an audio interface. The first conversion circuit includes a digital to analog (D/A) converter and a coupler. The second conversion circuit includes an analog to digital (A/D) converter and a decoupler. When the switch unit connects the first conversion circuit to the audio interface, the D/A converter converts a digital signals representing audio data into a first analog form data for coupling with a first alternating current (AC) voltage. When the switch unit connects the second conversion circuit to the audio interface, the decoupler decouples and separates a second analog form data into the second analog form data. The A/D converter converts the second analog form data into digital signals representing audio data, and outputs the digital signals representing audio data to the audio interface. | 06-27-2013 |
20130162021 | ADAPTER - An intelligent platform management bus (IPMB) interface device adapter includes first and second conversion circuits, a switch unit, and an IPMB interface. The first conversion circuit includes a digital to analog (D/A) converter and a coupler. The second conversion circuit includes an analog to digital (A/D) converter and a decoupler. When the switch unit connects the first conversion circuit to the IPMB interface, a digital signal representing data or commands is converted into a first analog form data which is coupled to an alternating current (AC) voltage. When the switch unit connects the second conversion circuit to the IPMB interface, the decoupler decouples and separates the analog form data from the AC voltage. The A/D converter converts the analog form data into a digital signal, and outputs the digital signal to the IPMB interface. | 06-27-2013 |
20130187445 | POWER OVER COAXIAL CABLE - An image communication system includes a coaxial cable having first and second ends. A monitor station is coupled to the first end and a camera is coupled to the second end. The monitor station provides power to the camera through the cable, while the cable is also used to carry communication signals transmitted by the camera to the monitor station. The image communication system includes a first active inductor coupled to the first end and a second active inductor coupled to the second end. A current-compensation circuit may also be provided. | 07-25-2013 |
20130207454 | HIGH RELIABILITY POWER OVER ETHERNET - A method includes receiving a signal to maintain uninterrupted power to a device over a power over Ethernet line. The power over Ethernet line is configured to carry data and power. Power delivery is maintained for the device regardless of a power disruptive event associated with a power source device. Carrying the power to the device over the power over Ethernet line is interrupted in absence of the receiving the signal. According to one embodiment, the signal is generated in response to a user command or it may be generated from the device automatically. The signal may classify the device as a critical device. The power disruptive event may include initialization of a data path, alteration to a data path associated with the power over Ethernet line, a software update associated with the power source device, reset of power source device, etc. | 08-15-2013 |
20130221740 | POWER SUPPLY SYSTEM FOR A BUILDING - An electrical system, which includes a light switch housing and an AC-to-DC converter carried by the light switch housing. The electrical system includes an input power line which provides an AC signal to an input of the converter and an output power line coupled to an output of the converter. An electrical device operates in response to receiving an output signal from the output power line, wherein the output signal is a DC signal. | 08-29-2013 |
20130300189 | Two-Wire Power And Communications For Irrigation Systems - A two-wire power and communication system is provided, having a decoder that draws a constant amount of current for communication signals despite changes in the voltage on the power and communication wires. In one example, decoders have a constant current sink circuit that includes a shunt regulator that controls a field effect transistor. | 11-14-2013 |
20130307323 | METHODS AND SYSTEMS FOR DEVICES POWERED VIA ETHERNET CONNECTIONS - Methods and systems are provided to power an appliance coupled to a data connection port, the data connection port having an independent power supply separate from the power grid and being coupled to the appliance via a coupling, wherein the appliance is powered by the independent power supply via the coupling. Methods and systems are provided to power an appliance coupled to an Ethernet port via a Category 5 cable, the appliance being powered via an independent power supply of the Ethernet port via the Category 5 cable, the independent power supply being separate from the power grid. | 11-21-2013 |
20130320753 | COIL COMPONENT, AND ELECTRONIC DEVICE AND POWER OVER ETHERNET SYSTEM HAVING THE SAME - There are provided a coil component in which a plurality of coil parts are integrated in a single component, and an electronic device and a Power over Ethernet (PoE) system having the same. The coil component includes: a base having external connection terminals fastened thereto; a core coupled to the base; and a plurality of coil parts electromagnetically coupled to the core through a coil wound around the core. | 12-05-2013 |
20130334872 | POWER LINE COMMUNICATION DEVICE, POWER LINE COMMUNICATION SYSTEM, POWER LINE COMMUNICATION METHOD, AND POWER LINE COMMUNICATION PROGRAM - Provided is a power line communication device capable of performing reliable power line communication, without requiring detection of switching noises. The power line communication device corresponds to an MPPT controller ( | 12-19-2013 |
20140028086 | CIRCUIT ARRANGEMENTS AND A METHOD FOR RECEIVING INFORMATION - A circuit arrangement is provided, the circuit arrangement including a receiver configured to receive signal information from a sensor circuit; a discharge circuit configured to discharge a capacitance by providing a discharge pulse; and a modulation circuit configured to modulate a bit pattern onto the discharge pulse. | 01-30-2014 |
20140049099 | METHODS AND SYSTEMS FOR EXCHANGING INFORMATION BETWEEN AIRCRAFT - Methods and systems for use in exchanging information between aircraft at an airport are provided. The system includes a power system capable of providing power to each of the plurality of vehicles via an electric cable, at least one off-board broadband over power lines (BPL) module coupled to the power system. The at least one off-board BPL module is capable of communicating via the electric cable with an onboard BPL module on each of the plurality of vehicles. The system also includes a network coupled to each of the at least one off-board BPL modules for communicatively coupling each of the at least one off-board BPL modules such that the plurality of vehicles can exchange information via the network. | 02-20-2014 |
20140139014 | POWER OVER DATA TRANSMISSION - The invention relates to a power transmission device capable of transmitting electricity supplied by an electricity source to at least one powered device connected to said transmission device by means of a communication network, via at least one data transmission cable including at least one pair of conductors, the electrical current being conveyed on the at least one pair of conductors. The power transmission device according to the invention includes, for each connected powered device, a protection device capable of tripping to protect the electricity source in case of electrical malfunction of the powered device as well as balancing of the electricity conveyed on the at least one pair of conductors, said protection device including at least one shared component contributing both to performing said trip and said balancing. | 05-22-2014 |
20140203628 | POWER SUPPLY OF TWO-WIRE CUMMUNICATION LINE - The invention relates to a power supply of two-wire communication line intended for transmission of signals between electronic devices, as well as for transmission of signals between electronic device and for supplying them with power. The device enables to increase the range and reliability of communication through increasing noise immunity owing to compensation of the noise signal in the communication line wires. Compensation of the noise signal is achieved in that the power supply comprising a two-pole primary power supply further comprises a secondary power supply, its poles connected to the communication line wires, as well as to eponymous poles of the primary power supply through resistors of the same value. | 07-24-2014 |
20140265550 | REDUNDANTLY POWERED AND DAISY CHAINED POWER OVER ETHERNET - According to one aspect, embodiments of the invention provide a distributed sensor network comprising an interface unit and a plurality of sensor strings, each sensor string comprising a plurality of sensor units coupled in series to a port of the interface unit, wherein each one of the plurality of sensor units is configured to be provided both power and network connectivity via a first cable from one of the interface unit and another sensor unit within the sensor string and also to provide both power and network connectivity via a second cable to another sensor unit within the sensor string, and wherein a first string of the plurality of sensor strings is configured to be coupled to a second string of the plurality of sensor strings and wherein at least one sensor unit within the first string is configured to provide power to a sensor unit within the second string. | 09-18-2014 |
20140284997 | CURRENT REGULATION CIRCUIT, POWER OVER ETHERNET SYSTEM, AND METHOD - A current regulation circuit includes a number of current regulation units. Each of the current regulation units includes a sampling unit, a mean conversion unit, a current integration unit, a comparison unit, and a voltage conversion unit. The sampling unit outputs sampling current signals according to output current signals of a POE port. The mean conversion unit converts the sampling current signals into mean current signals. The current integration unit integrates and converts the mean current signals output by the number of current regulation units into output reference current signals. The comparison unit compares the mean current signals with the reference current signals, and outputs comparison signals based on the comparison. The voltage conversion unit regulates the output current signals according to the comparison signals output by the comparison unit. A POE system and method are also provided. | 09-25-2014 |
20140292069 | COMMUNICATION SYSTEM AND COMMUNICATION DEVICE - An output circuit sends a control pilot signal generated in a voltage generator to an input circuit. A communication unit is connected between an earthed wire and a control pilot wire on the output side of the output circuit via a bandpass filter. A communication unit is connected between the earthed wire and the control pilot wire on the input side of the input circuit via a bandpass filter. A low-pass filter is interposed between the output circuit and the communication unit. A low-pass filter is interposed between the input circuit and the communication unit. | 10-02-2014 |
20150097421 | ISOLATED SIGNAL TRANSMISSION APPARATUS - An isolated signal transmission apparatus isolatingly transmits, from a control-side apparatus to a control target apparatus, an electric signal obtained by superimposing a communication signal on a direct-current signal. The apparatus includes a lower limiter circuit configured to output, to the control target apparatus, a direct-current signal, whose value is a predetermined lower limit value, if a value of the direct-current signal from the control-side apparatus is less than the predetermined lower limit value. | 04-09-2015 |
20150130269 | DETECTION, CLASSIFICATION AND MUTUAL RECOGNITION OF 4 PAIR POWER OVER ETHERNET - A method for verifying interconnection of a PSE and PD with 4-pair PoE capabilities includes performing a first classification event on first and second pairs, respectively, and detecting a first predetermined class current on first and second sets of twisted pairs, respectively. The method includes performing a second classification event on first and second pairs, respectively, and detecting first and second predetermined class currents on first and second pairs, respectively. After expiration of a first variable delay period related to a first pseudo-random variable of the PSE, the method includes performing a third classification event on the first pair and detecting a first derived class current on the first pair. After expiration of a second variable delay period related to a second pseudo-random variable of the PD, the method includes performing the third classification event on the second pair and detecting a second derived class current on the second pair. | 05-14-2015 |
20150145324 | POWER OVER DATA LINES DETECTION AND CLASSIFICATION SCHEME - A PoDL system includes a PSE connected via a wire pair to a PD, where differential data and DC power are transmitted over the same wire pair. Typically, low voltage/current detection and classification routines are required upon every powering up of the system to allow the PD to convey its PoDL requirements to the PSE. Various techniques are described that simplify or obviate such start-up routines or enable increased flexibility for the PoDL system. Such techniques include: ways to specify a particular PD operating voltage; ways to disable the PD's UVLO circuit during such routines; using opposite polarity voltages for the two routines; using voltage limiters or surge protectors to convey the PoDL information; detecting loop resistance; using a PSE memory to store previous results of the routines; and powering the PD communication circuit using the wire pair while the PD load is powered by an alternate power source. | 05-28-2015 |
20150295735 | BROADBAND POWER COUPLING/DECOUPLING NETWORK FOR PoDL - A Power Over Data Lines (PoDL) system includes Power Sourcing Equipment (PSE) supplying DC power and Ethernet data over a single twisted wire pair to a Powered Device (PD). The PSE supplies the DC current and AC data through a cascaded coupling network including a series of AC-blocking inductor stages having different inductances to substantially filter out the AC component and pass the DC component. The data is supplied to the wires via capacitors. The PD may have a matched decoupling network for providing the separated DC power and data to a PD load. | 10-15-2015 |
20150333935 | PoDL SYSTEM WITH ACTIVE dV/dt and dI/dt CONTROL - A Power Over Data Lines (PoDL) system includes Power Sourcing Equipment (PSE) supplying DC power and differential Ethernet data over a single twisted wire pair to a Powered Device (PD). Due to start-up perturbations, PD load current variations, and other causes, dV/dt noise is introduced in the power signal. Such noise may be misinterpreted as data unless mitigated somehow. Rather than increasing the values of the passive filtering components conventionally used for decoupling/coupling the power and data from/to the wire pair, active circuitry is provided in the PSE, PD, or both to limit dV/dt in the power signal. Such circuitry may be implemented on the same chip as the PSE controller or PD controller. Therefore, the sizes of the passive components in the decoupling/coupling networks may be reduced. | 11-19-2015 |
20150372826 | POWER OVER ETHERNET METHOD AND APPARATUS FOR IMMEDIATE POWER AVAILABILITY - A PSE control circuitry arranged to: control the power source to output a detection signal; responsive to the detection signal, determine the resistance of a signature resistive element; in the event that the determined resistance is within a predetermined range, control a power source to output power to the load; in the event that the determined resistance is outside the predetermined range, prevent the power source from outputting power for a predetermined disconnect time period; detect the amount of power drawn from the power source; in the event that the detected power amount is less than a predetermined minimum power draw value, control the power source to cease output of power for a predetermined power down time period, the predetermined power down time period less than the predetermined disconnect time period; immediately subsequent to both time periods, control the power source to output the detection signal. | 12-24-2015 |
20150380987 | REVERSIBLE POWERING DEVICE - The present disclosure provides a reversible powering device for an electronic equipment including a first power input port and a second power input port. Said reversible powering device including: a power input determining module configured to determine whether the first power input port or the second power input port of the electronic equipment has a power input respectively, and send a control signal to a switch controlling module if it is determined that the first power input port has a power input and the second power input port has no power input; and the switch controlling module configured to control a switch device according to said control signal such that the power input into the first power input port is output from the second power input port in a reverse direction to power another electronic equipment. | 12-31-2015 |
20160036595 | REDUNDANTLY POWERED AND DAISY CHAINED POWER OVER ETHERNET - According to one aspect, embodiments of the invention provide a method for providing power to a distributed sensor system, the method comprising providing power from at least one port of an interface unit to a first port of a first sensor unit of at least one of a plurality of sensor strings, powering up the first sensor unit, forwarding power from a second port of the first sensor unit to a first port of a second sensor unit of the at least one of the plurality of sensor strings, powering up the second sensor unit, monitoring the plurality of sensor strings for a fault condition, and in response to detecting a fault condition in a first sensor string of the plurality of sensor strings, providing power from a second one of the plurality of sensor strings to the first sensor string. | 02-04-2016 |
20160043873 | DC POWER DISTRUBUTION SYSTEM - The invention relates to a DC power distribution system, especially an EMerge DC power distribution system ( | 02-11-2016 |
20160049802 | TRANSMISSION DEVICE AND CONTROL METHOD THEREOF - A chip is provided. A power transmission path and a data transmission path are coupled between an upstream port and a downstream port. A first detection unit generates a first trigger signal when a voltage level of the power transmission path reaches a first predetermined value. A first control unit turns on the data transmission path according to the first trigger signal. A second detection unit detects a voltage level of the data transmission path. When the voltage level of the data transmission path matches a pre-determined condition, the second detection unit generates a second trigger signal, and the first control unit turns off the data transmission path according to the second trigger signal. A setting unit sets the voltage level of the data transmission path when the first control unit turns off the data transmission path. | 02-18-2016 |
20160056967 | POWERED DEVICE INTERFACE CLASSIFICATION APPARATUS AND METHOD - A powered device interface constituted of: a first and second rectifier bridge, the outputs and returns thereof in electrical communication with each other; and a selection circuit; and a classification current circuit in electrical communication with the output and return of each of the first rectifier bridge and the second rectifier bridge, and further in electrical communication with a first and second input of the first rectifier bridge, wherein the classification current circuit is arranged, responsive to a classification voltage received at one of the first rectifier bridge and the second rectifier bridge, to: in the event that the classification voltage is received at the first rectifier bridge, output a first classification current exhibiting a first magnitude; and in the event that the classification voltage is received at the second rectifier bridge, output a second classification current exhibiting a second magnitude. | 02-25-2016 |
20160064939 | USING POWER OVER ETHERNET PROTOCOL TO AUGMENT A DC/AC POWER MODULE INVERTER AND APPLICATION THEREOF - The present invention uses the power over ethernet protocol to augment a DC/AC power module inverter with application thereof, in which the original power over ethernet protocol is used as the basis for a DC power supply, and augments an ethernet powered device module with a DC-AC module inverter, thereby forming a device having two different output applications that is equivalent to a module having both a DC to DC and DC to AC at the same time. | 03-03-2016 |
20160134331 | Packet Energy Transfer Power Control Elements - a digital power system includes at least one electrical power source, at least one power control element, and a digital power receiver electrically coupled with the power control element to receive electrical current therefrom. The power control element includes (i) a power conditioning circuit electrically coupled with the electrical power source and (ii) element controller circuitry electrically coupled with the power conditioning circuit and configured to control and receive feedback from the power conditioning circuit, to receive a communication/synchronization signal, and to output digital power under packet energy transfer protocol. | 05-12-2016 |
20160142217 | DETECTING GROUND ISOLATION FAULT IN ETHERNET PoDL SYSTEM - Circuits and techniques are described for detecting a ground fault leak between the PSE and the PD. Prior to PoDL voltage being applied to the PD, a test switch is temporarily closed for sensing a voltage drop in a loop between the positive terminal of the PSE voltage source and any ground leakage path between the PSE and the PD. If the resistance of the ground leakage path is below a certain threshold, a fault is declared. A similar test may be performed without a test switch by supplying a known test current through the loop and sensing the voltage drop. Another test is to connect the positive terminal of the PSE voltage source to the loop and sense the resulting current. After the full PoDL voltage is applied to the PD, a ground fault may be detected by sensing the equivalence between the source and return PSE currents. | 05-19-2016 |
20160149713 | POWERED DEVICE AND POWER DISTRIBUTION SYSTEM COMPRISING THE POWERED DEVICE - The invention relates to a powered device ( | 05-26-2016 |
20160164687 | REVERSE POWERING SYSTEM FOR TELECOMMUNICATIONS NODE - To initiate the transmission of electrical power over a telecommunications connection from a power-collecting telecommunications interface unit o such as a customer premises equipment, connectable to a power supply, to a power-receiving unit such as a curbside electrical/optical interface, when a connection is first established, or the collecting unit is first powered up, or in order to re-establish connection alter a power outage, control signals are transmitted between low-power modems in the interlace units using a low-power communications protocol. This allows the controlled initiation of a larger power output and a higher speed exchange of data once the full telecommunications connection has been established. A low-powered beacon signal is transmitted over the telecommunications connection by the power-collecting telecommunications interface unit on connection to a power supply, for detection by the power-receiving telecommunications interface unit. In the event of a loss of power at the input, the low power modem initiates power management control signals to cause the power-receiving telecommunications interface to shut down certain functions in order to preserve backup power for essential “lifeline” services. | 06-09-2016 |
20160164688 | POWERED DEVICE AND POWER DISTRIBUTION SYSTEM COMPRISING THE POWERED DEVICE - The invention relates to a powered device ( | 06-09-2016 |
20160173290 | COMMUNICATION SYSTEM, POWER SUPPLY CONTROL METHOD, AND POWER SUPPLY CONTROL NON-TRANSITORY COMPUTER READABLE MEDIUM | 06-16-2016 |
20160173291 | POWER MANAGEMENT FOR DISTRIBUTED COMMUNICATION SYSTEMS, AND RELATED COMPONENTS, SYSTEMS, AND METHODS | 06-16-2016 |
20160197734 | POE FOUR PAIR ACTIVE DETECTION APPARATUS AND METHOD | 07-07-2016 |
20160197735 | POE POWER MONITORING ARRANGEMENT AND METHOD | 07-07-2016 |
20160204949 | POWER DISTRIBUTION SYSTEM | 07-14-2016 |
20160204950 | Adjustable Data Rates | 07-14-2016 |
20160380777 | POWER INSERTION DEVICE FOR HYBRID FIBER AND POWER NETWORK - A power insertion device includes: an input interface, configured for receiving a fiber connection from a fiber network; an output interface, comprising one or more hybrid cables for connection to one or more end devices, each of the hybrid cables including fiber for data communication and wire for power transmission; a mains power interface, configured to receive alternating current (AC) mains power; one or more power supplies, configured to convert the AC mains power to direct current (DC) power; and a power insertion board, configured to provide power insertion of the DC power out through the one or more hybrid cables. | 12-29-2016 |
20170237574 | POWER OVER DATA LINES SYSTEM PROVIDING A VARIABLE VOLTAGE TO POWERED DEVICE | 08-17-2017 |
20170237575 | POWER OVER DATA LINES SYSTEM USING VOLTAGE CLAMP IN PD FOR DETECTION OR CLASSIFICATION | 08-17-2017 |