19results about "Systems using coupling circuits" patented technology

A device for managing photovoltaic modules according to one aspect includes: a communication unit for receiving a power line communication signal from at least one photovoltaic module array or transmitting the power line communication signal to the at least one photovoltaic module array; and a bypass unit forming a first communication path connecting the communication unit to the at least one photovoltaic module array, wherein the first communication path operates as an alternative path for a second communication path connecting the communication unit to the inverter.

A network power distribution system (300) using a common communication and power line includes a power line (314), a plurality of fire alarm units, and a power line control device (302). The power line (314) provides alternating current, and the fire alarm units are coupled to the power line (314). The power line control device (302) is coupled to the power line (314) and to a particular fire alarm unit of the plurality of fire alarm units. The power line control device (302) includes a communication translator (304) to convert between the power line (314) and a non-power line protocol, and a power line core (306) to modulate signals to and from the power line (314).

An apparatus comprising a signal transformer coupled to a power line and a signal transmission, reception, or detection circuit. A sensor is configured to be responsive to the power line current or magnetic flux generated in a ferrite core of the signal transformer. When the sensor indicates that the flux generated by the power line current mat cause an attenuation of the signal strength, a second circuit generates a current through a flux cancelling winding that cancels at least some of the flux generated by the power line current.

The application discloses a low-voltage power supply line remote operation system, which comprises a power switch, a communication controller, a power supply line, a display controller and a power consumption device. The power switch is arranged on the power supply line, and the power supply line is connected with an external power source, a communication controller, a display controller and a power consumption device. The application realizes remote communication control by using the power supply line, and does not need a communication line and a monitoring network. The power supply line can be operated by power consumption and maintenance personnel at any position of the power supply line. The power supply line can be operated by power consumption personnel to stop and send power, and the power supply line is locked and hung with a card. The power supply line has identity and password verification locking, and can master the state and parameters of the power supply line. The application solves the serious disconnection of the original power stop / sending application and power stop / sending operation by different personnel, realizes that who stops the power and who unlocks the power, and improves the efficiency.

The utility model discloses a charging box with charging and voice data transmission functions and a charging box combination. The charging box comprises a shell, a connecting interface, a signal processing module and a connector interface. The shell extends inwards in a concave mode to form a containing groove. The connecting interface is arranged in the containing groove. The signal processing module is arranged in the shell and electrically connected with the connecting interface. The connector interface is arranged on the outer side face of the shell and electrically connected with the signal processing module. When charging or data transmission or software updating is carried out on the collar clip type microphone, the collar clip type microphone is stored in the storage groove, and a power supply or data is transmitted to the connection interface through the connector interface by means of the power supply transmission line or the data transmission line of the signal processing module and then is transmitted to the transmission interface of the collar clip type microphone. The collar clip type microphone does not need to be additionally provided with a connector interface, charging or data transmission or software updating is achieved, the size of the collar clip type microphone is reduced, and use convenience is improved.

According to one embodiment, an apparatus for managing solar modules includes a communication unit that receives a power line communication signal from at least one solar module array or transmits a power line communication signal to the at least one solar module array, and a bypass unit that forms a first communication path connecting the communication unit and the at least one solar module array, the first communication path operating as an alternative path to a second communication path connecting the communication unit and an inverter.

A device for managing photovoltaic modules according to one aspect includes: a communication unit for receiving a power line communication signal from at least one photovoltaic module array or transmitting the power line communication signal to the at least one photovoltaic module array; and a bypass unit forming a first communication path connecting the communication unit to the at least one photovoltaic module array, wherein the first communication path operates as an alternative path for a second communication path connecting the communication unit to the inverter.

The disclosure discloses a back-end circuit for processing an analogue video signal and direct current power, a front-end circuit for processing an analogue video signal and direct current power and a Power Over Coaxia (POC) circuit for an analogue video signal. Each of the back-end processing circuit and the front-end processing circuit includes an analogue video signal passing circuit configured to block the direct current power and let the analogue video signal pass and a direct current power passing circuit configured to block the analogue video signal and let the direct current power pass, so that the analogue video signal may be isolated from the direct current power and the analogue video signal may be superimposed to the direct current power without mutual influence and exclusion to realize a function of superimposing the direct current power on an analogue high-definition video cable. Obviously, the back-end processing circuit and the front-end processing circuit are electrically connected with two ends of a coaxial cable respectively to implement simultaneous transmission of the direct current power and the analogue video signal on the coaxial cable, so that cost is reduced, and moreover, construction time is shortened.

A pool or spa control system includes a sensor system with one or more sensors in contact with a main body of water. The sensor system measures water condition data of the body of water and is mounted on a wall submerged in the main body of water. The pool or spa control system also includes a modem that facilitates data communications between the sensor system and communication equipment positioned at a different location from the main body of water.

An apparatus comprising a signal transformer coupled to a power line and a signal transmission, reception, or detection circuit. A sensor is configured to be responsive to the power line current or magnetic flux generated in a ferrite core of the signal transformer. When the sensor indicates that the flux generated by the power line current mat cause an attenuation of the signal strength, a second circuit generates a current through a flux cancelling winding that cancels at least some of the flux generated by the power line current.

A power line communication (PLC) system related to the field of power line communication. The power line communication system may include a power conversion device, a signal isolation circuit, a signal adjustment circuit, a transformer, and an operation circuit. An output end of the power conversion device is connected to a power line through the signal isolation circuit, and the signal isolation circuit may be configured to isolate an input signal of the power line to obtain a first noise signal of the power conversion device. A first input end of the signal adjustment circuit is connected to the output end of the power conversion device, and the signal adjustment circuit may be configured to perform phase inversion on a phase of the first noise signal and output a second noise signal.

The embodiment of the application discloses a method, device and system for information transmission in a PLC network, which are used for transmitting information. The switch control device comprises a switch and a coupling circuit, the coupling circuit is connected in parallel with the switch, and when the switch is turned off, the coupling circuit transmits a first power line communication (PLC) signal to a gateway device. The embodiment of the application also provides a method for information transmission. The embodiment of the application can send a PLC signal to the gateway device when the switch is turned off, and report information such as power failure and tripping to the gateway device.

A power control system includes a device that receives power from an electric line of a distribution system via a distribution transformer, an acquisition unit that acquires electric line information on the electric line, and a control unit that causes the device to generate a current used for adjustment of apparent power in the electric line based on the electric line information acquired by the acquisition unit.

This application relates to the field of power line communication, and discloses a power line communication system. The power line communication system may include a power conversion device, a signal isolation circuit, a signal adjustment circuit, a transformer, and an operation circuit. An output end of the power conversion device is connected to a power line through the signal isolation circuit, and the signal isolation circuit may be configured to isolate an input signal of the power line to obtain a first noise signal of the power conversion device. A first input end of the signal adjustment circuit is connected to the output end of the power conversion device, and the signal adjustment circuit may be configured to perform phase inversion on a phase of the first noise signal and output a second noise signal. An input end of the transformer is connected to the power line, and the transformer may be configured to filter out a power signal in the input signal of the power line and then output a first signal. The operation circuit may be configured to output a first communication signal based on the first signal and the second noise signal.

A communications control system / switch fabric is disclosed that includes a serial communications interface and a parallel communications interface (e.g., for coupling input / output modules with a control module). The serial communications interface is configured for connecting input / output modules / slave devices to a control module / master device, and the parallel communications interface is configured for separately connecting the input / output modules / slave devices to the control module / master device.

A broadband over powerline (BPL) master control unit is provided. The BPL master control unit includes a processor, a local memory device, a first wireless transceiver, a second wireless transceiver and a powerline transceiver. The processor is configured to transmit and receive data over a power line via the powerline transceiver. The processor is further configured to receive a plurality of data via the powerline transceiver, determine whether to route the plurality of data through the first wireless transceiver or the second wireless transceiver, and transmit the plurality of data via one of the first wireless transceiver and the second wireless transceiver based on the determination.

A first mobile device including a connection terminal configured to electrically connect to a second mobile device, a variable impedance device connected to the connection terminal, the variable impedance device configured to vary an impedance, processing circuitry configured to determine a power line communication (PLC) mode between the first mobile device and the second mobile device to be one of a low-speed PLC mode or a high-speed PLC mode, and control the impedance of the variable impedance device according to the determined PLC mode, and a PLC modem configured to receive power from the second mobile device or communicate data with the second mobile device based on the determined PLC mode.

According to one aspect, an apparatus for managing a solar module comprises: a communication unit for receiving a power line communication signal from at least one solar module array or transmitting the power line communication signal to the at least one solar module array; and a bypass unit forming a first communication path connecting the communication unit to the at least one solar module array, where the first communication path operates as an alternative path to a second communication path connecting the communication unit to an inverter.

The application relates to the field of power line communication, and discloses a power line communication system. The power line communication system can comprise a power conversion device, a signal isolation circuit, a signal adjustment circuit, a transformer and an operation circuit. The output end of the power conversion device is connected with a power line through the signal isolation circuit, the signal isolation circuit can be used for isolating an input signal of the power line to obtain a first noise signal of the power conversion device. The first input end of the signal adjustment circuit is connected with the output end of the power conversion device, the signal adjustment circuit can be used for inverting the phase of the first noise signal and outputting a second noise signal. The input end of the transformer is connected with the power line, the transformer can be used for filtering a power signal in the input signal of the power line to output a first signal. The operation circuit can be used for outputting a first communication signal according to the first signal and the second noise signal.