A charging system, a charging method, and a power adapter are provided. The power adapter includes a battery, a first rectification unit, a transformer, a synthesis unit, a first charging interface, a sampling unit, and a modulation and control unit. The modulation and control unit is configured to modulate a voltage of a first pulsating waveform according to a voltage sampling value obtained by the sampling unit, such that a second AC output from the synthesis unit meets charging requirements.

The present subject matter relates to one or more devices systems and/or methods for generating sealing current at a customer's premises or residence and injecting the sealing current into a DSL service provider's telephone cables to prevent the oxidation or corrosion of wire splices or connections on the telephone cables transporting DSL services. A cable pair stabilizer unit is connected at the customer's premises or residence, between the service provider's telephone cables and the customer's residential gateway/modem. The cable pair stabilizer unit comprises circuitry for generating the sealing current and for injecting the sealing current into the service provider's telephone cables transporting DSL services. The cable pair stabilizer unit may be combined with an AC/DC power supply adapter as a single, integrated device. The cable pair stabilizer unit may alternatively be combined with or inside of the Residential Gateway as a single, integrated device.

A connector and cabling system is provided. The system includes a plurality of pigtails, each pigtail of the plurality of pigtails are configured to couple to one of a plurality of electronic devices, wherein each electronic device of the plurality of electronic devices has a corresponding box or package. The system includes a cable and a plurality of first connectors. Each first connector of the plurality of first connectors is configured to extend through and attach to a wall of a box or opening of the package with a first port of the first connector inside the box. The first port is coupled to the pigtail, and a second port of the first connector outside the box or package. The second port is coupled to the cable. The plurality of electronic devices is provisioned via the cable, the plurality of first connectors and the plurality of pigtails, with each of the plurality of electronic devices, in the corresponding box or package. A method of preparing electronic devices for shipping is also provided.

A connector and cabling system is provided. The system includes a plurality of pigtails, each pigtail of the plurality of pigtails are configured to couple to one of a plurality of electronic devices, wherein each electronic device of the plurality of electronic devices has a corresponding box or package. The system includes a cable and a plurality of first connectors. Each first connector of the plurality of first connectors is configured to extend through and attach to a wall of a box or opening of the package with a first port of the first connector inside the box. The first port is coupled to the pigtail, and a second port of the first connector outside the box or package. The second port is coupled to the cable. The plurality of electronic devices is provisioned via the cable, the plurality of first connectors and the plurality of pigtails, with each of the plurality of electronic devices, in the corresponding box or package. A method of preparing electronic devices for shipping is also provided.

Devices, systems, and methods are described for visually indicating an occurrence of an event. A visual indicator device is described for connection to a video communication device, the visual indicator device comprises a transparent housing, a printed circuit board having a plurality of light sources mounted thereon, and a light pipe positioned within the transparent housing between a back surface of the transparent housing and the printed circuit board, the light pipe having a flat surface and an angled surface having a range between 30° to 45° relative to the flat surface.

Methods of powering a radio that is mounted on a tower of a cellular base station are provided in which a direct current (“DC”) power signal is provided to the radio over a power cable and a voltage level of the output of the power supply is adjusted so as to provide a substantially constant voltage at a first end of the power cable that is remote from the power supply. Related cellular base stations and programmable power supplies are also provided.

The present subject matter relates to one or more devices, systems and/or methods for generating sealing current at a customer's premises or residence and injecting the sealing current into a DSL service provider's telephone cables to prevent the oxidation or corrosion of wire splices or connections on the telephone cables transporting DSL services. A cable pair stabilizer unit is connected at the customer's premises or residence, between the service provider's telephone cables and the customer's residential gateway/modem. The cable pair stabilizer unit comprises circuitry for generating the sealing current and for injecting the sealing current into the service provider's telephone cables transporting DSL services. The cable pair stabilizer unit may be combined with an AC/DC power supply adapter as a single, integrated device. The cable pair stabilizer unit may alternatively be combined with or inside of the Residential Gateway as a single, integrated device.

The present disclosure discloses a charging device, a charging method, a power adapter and a terminal. The device includes: a charging receiving terminal configured to receive a first alternating current; a voltage adjusting circuit, including a first rectifier configured to rectify the first alternating current and output a first voltage with a first ripple waveform, a switch unit configured to modulate the first voltage according to a control signal to obtain a modulated first voltage, a transformer configured to output a plurality of voltages with ripple waveforms according to the modulated first voltage, and a compositing unit configured to composite the plurality of voltages to output a second alternating current; and a central control module configured to output the control signal to the switch unit so as to adjust voltage and/or current of the second alternating current in response to a charging requirement of the battery.

The present disclosure discloses a charging device, a charging method, a power adapter and a terminal. The device includes: a charging receiving terminal configured to receive a first alternating current; a voltage adjusting circuit, including a first rectifier configured to rectify the first alternating current and output a first voltage with a first ripple waveform, a switch unit configured to modulate the first voltage according to a control signal to obtain a modulated first voltage, a transformer configured to output a plurality of voltages with ripple waveforms according to the modulated first voltage, and a compositing unit configured to composite the plurality of voltages to output a second alternating current; and a central control module configured to output the control signal to the switch unit so as to adjust voltage and/or current of the second alternating current in response to a charging requirement of the battery.

Methods of powering a radio that is mounted on a tower of a cellular base station are provided in which a direct current (DC) power signal is provided to the radio over a power cable and a voltage level of the output of the power supply is adjusted so as to provide a substantially constant voltage at a first end of the power cable that is remote from the power supply. Related cellular base stations and programmable power supplies are also provided.