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Backup battery systems for traffic cabinets
Backup battery systems for traffic cabinets that control traffic lights are provided herein. Backup battery systems include a controller operably coupled to 1...
Double-port energy storage system and control method thereof
A double-port energy storage system includes a bi-directional power conversion circuit, a DC-AC inverter circuit, an electric energy storage facility, a first...
System, apparatus and method for uninterruptible power supply
An uninterruptible power supply device, and method of use thereof, including a multiple-input source AC converter for receiving an AC input voltage and a DC...
Wireless power transmission device
A wireless power transmission device includes a main body, a first transmitter coil and a second transmitter coil. The second transmitter coil is stacked over...
Wired/wireless charging apparatus and circuit
A wired/wireless charging apparatus capable of performing wired charging and wireless charging and a circuit are provided. The wired/wireless charging apparatus...
Magnetic coupling unit and magnetic coupling system
There are provided a magnetic coupling unit and a magnetic coupling system which are capable of reducing energy loss when operations using magnetic coupling...
Lithium battery auto-depassivation system and method
A battery depassivation system includes a depassivation circuit, a battery connect/disconnect circuit, and a processor. The depassivation circuit is adapted to...
Charging system having active error correction for rechargeable batteries
A recharging system for a battery. The internal resistance of the battery and its leads produce an error voltage when a charging current flows through the...
Charging current setting method and charging module
A charging current setting method for a charging module includes detecting at least two voltage values associated with two input current values of an input...
Electronic device and electronic device charging system
An electronic device includes a power receiving unit and a secondary battery. The electronic device can send an instruction to an outside to stop power...
UPS electricity supply control circuit and UPS electricity supply
A UPS control circuit and a UPS is provided. The UPS includes a rechargeable battery and a UPS control circuit connected with the rechargeable battery. The UPS...
Field device with a battery unit
An apparatus comprising a battery unit and an electronics unit. The battery unit has a battery with a first and a second pole. The battery unit has at least a...
Power supply system for wireless keyboard
A power supply system includes a charge module, a control module, and a discharge module. The charge module includes a charge circuit and a cell assembly. The...
Integrated level shifter
GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power...
Determining a re-configuration of a wireless surface with a multi-coil
A system and method for determining a re-configuration of a wireless surface with a multi-coil system are provided. The system includes a reference generator to...
Apparatus for selectively supporting and charging an electronic device in
a portrait position and a landscape...
In accordance with an example embodiment of the present invention, an apparatus comprises an open frame comprising first and second members respectively...
A battery pack of one aspect of an embodiment of the present disclosure comprises a battery, a control unit, a pair of external terminals, a first current...
Adjusting device, battery pack, and adjusting method
An adjusting device that is connected to a load and to a plurality of storage battery units that are connected together in parallel and that adjusts voltage...
Charging method and electronic device
A charging method for an electronic device having a charging unit and a connection interface unit and the electronic device are provided. The connection...
Power feeding coil unit and wireless power transmission device
A power feeding coil unit includes a power feeding coil, and first and second auxiliary coils arranged so that a wire of the first auxiliary coil and a wire of...
Feed unit and feed system
A feed unit includes: a power transmission section configured to perform power transmission with use of a magnetic field or an electronic field; a power...
Power transmission device, power transmission method, and storage medium
A power transmission device includes a reception unit configured to receive, from each of a plurality of power reception devices as power transmission objects,...
Power transmitting system capable of power flashing and selective power
A wireless power transfer system is disclosed that allows for directed power distribution. A power station that transmits the power can also transmit a...
Light emitting element drive circuit
A drive circuit that drives a light emitting element coupled to a first output terminal of a differential circuit, the drive circuit includes: a dummy load...
Inertial response function for grids with high turbine penetration
A method for compensating at least partially a frequency deviation in a grid is provided in which a grid frequency is determined and the grid frequency is...
Direct integration of photovoltaic device into circuit board
Aspects relate to an integrated system that is electrically powered. The integrated system includes a circuit board and a photovoltaic device. The circuit board...
Electric power retail management apparatus and electric power retail
An electric power retail management apparatus according to an embodiment includes a power generation source selection unit. The power generation source...
Generator for producing electric power
A generator for producing electric power, the generator including a generator unit including a stator) and a rotatably supported rotor, wherein the stator...
AC/DC converter station operated in dependence of voltage of capacitor
connected in series between AC/DC...
The present invention relates to an AC/DC converter station for interconnection of a DC transmission line and an AC network, the AC/DC converter station...
Apparatus for controlling power supply
This specification relates to a power supply control apparatus. In order to solve problems of a power supply control only with respect to a preset time slot and...
Method and apparatus for storing energy
An energy storage apparatus for storing energy transmitted by a power transmission line includes an elastically deformable component and an actuator-generator....
Devices and methods for decentralized power loss reduction control
Devices and methods for the decentralized, coordinated control of the active power losses of an electrical distribution system are provided. For example, a...
Power management system
An apparatus is disclosed, which includes a system that includes loads, linear regulators, switches and a controller. The linear regulators supply power to the...
Input rail dynamic power balancing and merging
A dynamic multiple input rail switching unit includes a plurality of DC input voltage rails and a rail switching section coupled to the plurality of DC input...
Voltage clamping circuit
A voltage supply for providing a clamped voltage to a circuit element to be protected against electrical overstress (EOS) has a reference voltage module and a...
Semiconductor drive apparatus
A semiconductor drive apparatus includes a first control unit configured, when an overcurrent is detected flowing between a first main electrode and a second...
Transmission bandwidth extender/category 6 surge protector
A surge protector for protecting telecommunications related equipment and other associated sensitive electrical components from over-voltage transient occurring...
Systems and methods for protecting power conversion systems under open
and/or short circuit conditions
System and method are provided for protecting a power converter. The system includes a first comparator, and an off-time component. The first comparator is...
Power supply current monitoring device
A power supply current monitoring device is used for a load drive apparatus with two systems to drive a load. Each system includes a drive circuit connected in...
Electronic circuit and low voltage arc flash system including an
An electronic circuit includes a number of sensors structured to detect an arc flash from an uncontrolled arcing fault, and a trigger circuit, responsive to the...
Low voltage arc flash switch
A low voltage arc flash switch includes a sealed housing and gas insulation within the sealed housing. A plurality of conductors include a number of gaps...
Connector with rubber plug, retainer for retaining rubber plug and a guide
formed on a rear part of the...
A connector (10) includes a housing (30) with a wire draw-out portion (34) from which wires (W) are drawn out. Rubber plugs (27) are accommodated in rubber plug...
Wire protection structure
A wire protection structure includes a housing, a holder that is received in the housing through an opening of the housing, a cover that covers at least a part...
Hinged clamp for spacer-damper
A clamp for a spacer-damper includes a first jaw and a second jaw connected to the first jaw. The first jaw has a first clamping surface and a first aperture....
Cable management apparatus and method
Clip-type cable management apparatus and methods are disclosed. In one embodiment, a first jaw and a second jaw having interleaved tines in a predetermined...
Cable drag chain and cable drag chain assembly
A cable drag chain includes a number of first coupling members, a number of second coupling members engaging with the first coupling members, a number of...
Non-return valve for a resin injection system and resin injection system
The present invention provides a non-return valve for a resin injection system, especially for use in electrical cable joints, comprising: a valve housing which...
Cutting method of flat wire, and cutting tool
A cutting method of the invention cuts a flat wire covered with a film, using a pair of first blades, and a second blade that is arranged between the pair of...
Photogrammetric methods and apparatus for measurement of electrical
A method is disclosed comprising: imaging a feature of a component of an electrical power transmission system for example in combination with a reference...
Buffering device for the operating mechanism of a switchgear, and method
of lubrication thereof
A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing...