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Vibrator mechanism usable with a concrete finishing tool
A vibration imparting device for a concrete finishing tool uses a housing having a chamber surrounded by an inner surface of the housing. A vibrator with a...
Control device and rotating electric machine integral with control device
A control device (28) includes: a housing (15); a control section including control-section connection terminals (5, 6, 7) and an electronic component (22); a...
Inverter-integrated electric compressor
In this inverter integrated type electric compressor, an inverter device is installed so as to be accommodated in an inverter housing portion and the inverter...
Shaft linear motor with improved structural strength
A shaft linear motor includes an armature portion, a magnetic way and a sealing resin. The armature portion includes a frame, two ribs and a bobbin. The frame...
Stator unit and motor
A stator unit including a coil in which a distance between an m-1-th turn and an m-th turn is wider than each distance in a first turn to the m-1-th turn. The...
Electric motor having structure for reducing cogging torque
A synchronous electric motor having a structure for reducing cogging torque generated by the positioning error of a permanent magnet. Protrusions are...
An electric motor includes a stator and a rotor installed in the stator. The stator has a laminated stator core and at least two stator windings wound on the...
Inductively coupled ballast circuit
A ballast circuit is disclosed for inductively providing power to a load. The ballast circuit includes an oscillator, a driver, a switching circuit, a resonant...
System and method for transferring electric energy to a vehicle using
constant current operation of segments of...
A system for transferring electric energy to a vehicle such as a track bound vehicle or road automobile. The system includes an electric conductor arrangement...
Method and system to control ambient RF energy for wireless devices
A method and apparatus is disclosed herein for controlling radio-frequency (RF) energy for wireless devices. In one embodiment, the method comprises determining...
Site management in an on-demand system
Methods and systems are provided for managing environmental conditions and energy usage associated with a site. One exemplary method of regulating an...
Intelligent adaptive power supply
A multi-output power supply comprises an input power port for receiving input power, a first output power port supplying a first voltage derived from the input...
Method and system for controlling current of a power distribution circuit
A method of operating a battery charger electrically connected with a power distribution circuit having a power line and return line includes determining at...
Wirelessly transferring energy to a mobile device
A method is provided for operating a mobile device in an environment with a wireless energy transmitter, where the mobile device includes a drive system and a...
Cable compensation by zero-crossing compensation current and resistor
Methods, devices, and circuits are disclosed delivering a first level of output voltage to a rechargeable battery from a battery charger, the rechargeable...
Apparatus and method for rapidly charging batteries
An apparatus and methods for ultra-fast charging one or more batteries, including, for example, lithium ion batteries. A charging current is determined by...
Electrical load management system and method
A load management system provides an interface between a power input and several switched power outputs and un-switched power outputs. A controller groups the...
DC power signal generation for electro-chemical reactor
Various systems, processes, and techniques may be used for converting alternating current power to direct current power for an electro-chemical reactor. In...
Compact multifunctional battery booster
A compact battery charger for charging a battery comprising: a microprocessor; a set of terminals operatively coupled to said microprocessor and configured to...
Charging device for wireless hand controller and the charging system
The present invention provides a charging device for wireless hand controller and the charging system thereof, which comprises a charging device body, wherein,...
Safety device for battery pack having inserted-typed disconnect member
Disclosed herein is a safety device mounted in a battery pack including one or more battery modules, each of which includes a plurality of unit modules...
Battery charge protection system
A system comprises a battery including one or more cells, an energy source, a load, and a battery protection circuit coupled to the battery, the energy source...
Charge equalization systems and methods for battery systems and
uninterruptible power supplies
A battery system having at least one battery string of more than two batteries connected in series, a charge equalization circuit, a relay matrix, and a balance...
System and method for cell balancing and charging using a serially coupled
inductor and capacitor
An apparatus for charging a plurality of series connected battery cells, includes a first and second input terminals for providing a charging voltage to the...
Device for balancing the charge of the elements of an electrical power
A charge-balancing device for balancing charge of an electrical power-storage device that has several series-connected electrical storage elements two DC/DC...
Voltage management device for a stacked battery
An apparatus is provided that includes a first terminal to couple to a first node of a stacked battery pack having a first cell block and a second cell block, a...
Charging system that detects receiver standard and adjusts charging with
switches and selection of capacitors
The present disclosure relates to a wireless power transfer method, a wireless power transmitter and a wireless charging system in a wireless power transfer...
Hybrid inverter power control system for PV string, battery, grid and
A string inverter for use with a photovoltaic array includes a string-level DC input channel for receiving DC power from a photovoltaic array. The input channel...
Providing power in an electronic device
To provide power to an electronic device, converter circuits include a first converter circuit having an input connected to a first power source, and a second...
System and method for proportioned power distribution in power converter
A system and method for proportioned power distribution in arrays of power converters are disclosed. According to one embodiment, a method includes distributing...
Maximum power point tracking for photovoltaic power generation system
A method controls power generated by a photovoltaic array. The method estimates a voltage corresponding to a global maximum power point (MPP) of the power...
Inverter with extended endurance memory
In accordance with the present disclosure there is methods of extending an expected lifetime of an inverter comprising a non-volatile (NV) memory and a high...
Methods and apparatus for high-frequency electrical power collection and
Methods and apparatus for supplying power to an electrical line or grid by using high-frequency alternating current (HFAC) are provided herein. In some...
Systems and methods to emulate high frequency electrical signatures
Some embodiments teach an electrical device configured to emulate a high frequency electrical noise signal on an electrical power line. The electrical power...
High efficiency interleaved solar power supply system
A high efficiency solar power system combining photovoltaic sources of power (1) can be converted by a base phase DC-DC photovoltaic converter (6) and an...
Forced discharge circuit of battery charger for electric vehicle, battery
charger for electric vehicle, and...
Provided is a forced discharge circuit of a battery charger for an electric vehicle, which is capable of forcibly discharging a high voltage in accordance with...
Circuit arrangement for protecting against electrostatic discharges
A circuit arrangement for protecting against electrostatic discharges comprises a diverter (ECL) that is suitable for diverting an electrostatic discharge...
Electrical monitoring device and method for safeguarding the protective
function of a type A residual current...
A monitoring device and a method safeguards the function of a type A residual current device (RCD) in a power supply system. The monitoring device includes a...
In the present invention, a main switch circuit (13) is provided between an electric power line (PL), to which voltage outputted from a solar cell (11) is...
A circuit for protecting an electronic functional unit connected to a data line against positive and negative overvoltages includes an analog switch arranged in...
Electrical box mounting bracket with rails
An electrical installation bracket includes a body that may telescope to allow the length of the bracket to be changed to accommodate installation in different...
Sealed wall plate
A wall plate including a plate having a front surface and a rear surface, rear walls extending from and away from the rear surface to form a cavity, and a...
Bathroom butler system
A housing has a front panel, a rear panel, a top panel, a bottom panel, and side panels. Openings are formed in the front panel. A plurality of chambers are in...
Method for stripping a cable
A method for stripping a cable, the cable having a conductor encompassed by an insulation and extending in a longitudinal direction, includes cutting into the...
Switchgear system and restraint assembly therefor
A restraint assembly is for a switchgear system. The switchgear system includes an enclosure having a number of compartments and a number of electrical...
Subsea electrical distribution system having subsea busbar enclosure
assembly pressurized with sulfur...
A system and method for coupling electrical power subsea. The system comprises a subsea electrical distribution system having at least one modular subsea...
Electrical distribution center
An electrical distribution center, such as those used in a motor vehicle to provide and manage electrical power from a battery to electrical modules such as...
Method for mounting current sensors
A plurality of current sensors on a support is attached to bracket which is secured in an electric power distribution panel.
In an ignition device, at a timing of a control signal provided by a control device to control an ignition coil device or at a timing prior to the control...
Spark plug for internal combustion engine
A spark plug for an internal combustion engine includes a tubular housing, a tubular insulator held inside the housing, a center electrode held inside the...