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In one embodiment, a circuit comprises a first load circuit coupled to a first input voltage. A current sinking circuit is coupled to an output of the first...
Harmonic control method and circuit for flyback switching power supply
In one embodiment, harmonic control method for a flyback switching power supply, can include: (i) generating a sense voltage signal based on an output signal of...
Controlling method and system for supporting active power factor
The present invention relates to a control method for supporting active power factor correction (APFC) loads, comprising: providing square wave width of an...
Control circuit with multiple feedback loops and switching power supply
A control circuit with multiple feedback loops configured for a switching power supply, can include: (i) a plurality of feedback circuits configured to receive...
BJT driver with dynamic adjustment of storage time versus input line
A power converter controller includes a storage time reference circuit to generate a storage time reference signal in response to an input voltage signal. A...
Electric generating device having reduced volume
An electric generating device includes a motor having a rotary member, an electric generating mechanism having an engaging member, and a transmission device...
Linear motor and linear conveyance device
A linear motor is equipped with sensor substrates that are attached to main motor bodies in the X-direction along a conveyance path in such a manner that the...
Electropermanent magnet-based motors
An electropermanent linear actuator has a stator, forcer, drive circuitry, and feedback control mechanism. The stator includes at least one electropermanent...
A linear actuator that is configured such that a first tube and a second tube are relatively displaced in an axial direction, includes a rod that is provided in...
Rotating electric machine, in particular double-fed asynchronous machine
with a power range of between 20 MVA...
The invention proceeds from a rotating electric machine, in particular a double-fed induction machine in the power range between 20 MVA and 500 MVA, which...
Current diverter ring
The current diverter rings and bearing isolators serve to dissipate an electrical charge from a rotating piece of equipment to ground, such as from a motor...
A brush-less motor is disclosed, comprising a stator, a rotor, a plurality of field-effect tubes, a commutation circuit board, a control circuit board and a...
Liquid-cooled rotary electric machine having axial end cooling
A liquid-cooled rotary electric machine including jacket defining a heat transfer surface in conductive thermal communication with a stator and having an axial...
Axial flux electrical machines
An axial flux electrical machine comprises a substantially sealed housing (10) defining a fluid flow path (20), a heat exchanger (22) for transferring heat...
Energy harvester system
An energy harvester system including a primary energy collector (PEC), a cam gear ring, multiple secondary energy collectors (SEC), and a central gear is...
A wiper motor has: a magnet disposed on the yoke and formed with at least four poles; an armature disposed on an inner side of the magnet; a speed reduction...
Rotation driving device
A rotation driving device includes a motor provided in a housing, a planetary gear reducer connected to the motor coaxially with the motor, an output shaft...
Electromechanical device with included gear stages and internal
An electromechanical device having a mechanical interface structure for connecting to an external rotating element, an electrical machine, and one or more gear...
High force rotary actuator
An actuator includes a first stator with four first poles and a second stator with four second poles aligned with the four first poles. A permanent magnet is...
Vehicular AC generator
Adverse effects of a large assembling step comparable to tolerance of stacking members among constituent parts are prevented. At least two components and, among...
Automotive rotary electric machine
An automotive rotary electric machine according to the present invention includes: a mounting bolt that is inserted through a penetrating aperture that is...
Method and system for joining stator wires
A method and system is provided to join the wire ends of a stator by placing a crimpable element on a wire end pair such that the wire ends of the wire end pair...
Magnet tiles assembly
A magnet assembly includes at least one support member, a plurality of magnets, wherein each one of the plurality of magnets is positioned relative to the at...
Rotary electric machine
In the rotary electric machine, a cylinder 04a of a ring component 04 is formed in such a way that a fitting outer surface 04c1 of the cylinder 04a of the ring...
Coil tooth assembly
A stator back-iron or rotor back-iron of an electric motor, for receiving coil windings comprises a support (2) with a plurality of teeth (3) radially...
Methods for optically powering transducers and related transducers
The present disclosure describes a method for optically powering transducers and related transducers with a photovoltaic collector. An optical fiber power...
Wireless power transmission in portable communication devices
The present invention describes means to intentionally transmit power wirelessly from a portable communication device like a mobile phone, smart-phone, tablet...
Energy harvesting device using electromagnetic interference signal and
sensor system including the same
Provided are an energy harvesting device capable of generating electric energy by effectively obtaining an electromagnetic wave emitted from an indoor lighting...
Battery-powered backup power system for a sump pump installation
An automated battery-powered backup AC power supply system for a sump pump installation of the type having a sump pump and a pump controller which connects the...
Emergency door release with backup power
The present disclosure provides an emergency door release operable to release or command-to-close a rolling emergency door from its uppermost, or open, position...
Automatic dual battery charger mobile communication apparatus
A mobile communication apparatus utilizes a first and a second internal battery to provide power to the apparatus' electronic circuitry. A detachable battery...
Automatic emergency lighting load control
An emergency load control device includes a lighting relay that is coupled to a lighting load based on a relay control signal input. Further, the emergency load...
Electric system and vehicle
An in-vehicle solar system that supplies electric energy from a solar battery module to an electric device such as a secondary battery, a load, and the like...
Techniques and systems for charging electronic devices
The present invention is directed to a charging system for charging an electrical device coupled to a photovoltaic electrical power generator and one or more of...
Wireless charger circuit and method
A charging system for a mobile device includes a transmitter and a receiver. The transmitter includes (a) a first interface to a power source; (b) a second...
Noncontact power feeding apparatus and noncontact power feeding method
As an aspect of the present invention, a noncontact power feeding apparatus includes: a power transmission resonator; and a power reception resonator configured...
Module bypass switch for balancing battery pack system modules with bypass
A battery pack system module may include a module bypass switch for allowing charge current to bypass the battery pack system module. The module bypass switch...
Electricity storage system
An electricity storage system includes: an electricity storage unit (10, 11) that is subjected to charging and discharging; a voltage sensor (20, 20a) that...
Charging device for storage battery, and charging method for storage
A charging device for a storage battery includes: a charging power source for supplying electric power to a storage battery; a charging electric power detecting...
Method and system for voltage balancing of multiple rechargeable energy
A system is provided for balancing voltage of two rechargeable energy storage devices connected in series at a common node. A voltage divider is configured to...
A novel automobile charger which comprise a direct current voltage supply, wherein a positive pole of the direct current voltage supply is connected with one...
Battery state monitoring circuit and battery device
Provided is a battery device with high convenience, which is capable of setting overcurrent release impedance to be low. The battery device includes: a first...
Electric device and method for operating an electric drive
In a method for operating an electric device, which includes a first storage battery pack, a second storage battery pack and an electrical load, no more than...
USB device for making I/O pin with intact voltage during charging
procedure and related method
A universal serial bus device includes: a core circuit having a first pin and a second pin, and having an input impedance looking into the core circuit from the...
Battery charger having angled wall in battery receiving opening, and
battery pack charging system and cordless...
A charger (40; 240; 340) charges a battery pack (20) that is detachably attachable to a cordless power tool (12). The charger has at least a first side wall...
Power receiving unit, power transmission unit, and feed system
A power receiving unit includes: a power receiving section configured to receive electric power from a power transmission unit; and an electromagnet configured...
Systems and methods for disengaging a battery
Systems and methods for disengaging a battery are disclosed. The systems and methods may be used to disengage a battery from a direct-current (DC) bus of a...
Bypassable battery modules
A battery system may include a plurality of battery modules connected in series. A battery module of the plurality of battery modules may include a cell stack...
Battery control system and battery pack
A battery control unit (400) controls charge and discharge of battery cells (100) on the basis of temperatures measured by a temperature measurement unit (320)...
Devices and methods for inductive power transfer and power control for
Systems and methods and systems for wirelessly transmitting power between an industrial vehicle and an attachment.