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Soft-switching bi-directional power converter and method of operating the
A soft-switching bi-directional power converter includes a main inductor, a bi-directional switch module, a first switch module, a second switch module, and a...
Power converter with modular stages connected by floating terminals
An apparatus for electric power conversion includes a converter having a regulating circuit and switching network. The regulating circuit has magnetic storage...
Look-up table based configuration of a DC-DC converter
RF PA circuitry and a DC-DC converter, which includes an RF PA envelope power supply and DC-DC control circuitry, are disclosed. The PA envelope power supply...
Constant on-time control switching converter with DC calibration and
control circuit and method thereof
A constant on-time control switching converter with DC calibration is disclosed. A current flowing into a capacitor of a DC calibration circuit is reduced by...
Switch-mode power supply, charging current source and associated method
A switch-mode power supply includes a converter, a controller and a charging current. The charging current includes a logic circuit, a first current source and...
Average load current detector for a multi-mode switching converter
An average load current detector for a multi-mode switching converter is disclosed. The average load current detector includes a sense voltage generator that...
Power system and control method thereof
The present invention provides a power system and controlling method thereof. The power system includes: pulse width modulation (PWM) power source, voltage...
DCDC converter, semiconductor device, and power generation device
A DCDC converter includes a control circuit, a transistor in which switching is controlled by being supplied voltage output from the control circuit to a gate...
Single capacitor, controlled output, inverter based positive/negative
A charge pump includes first through fifth transistors and a capacitor. The first through fourth transistors are connected in cascade and form a control...
High efficiency DC-DC converter
A charge pump includes an input, an output, and a fixed voltage node; a first capacitor and at least a second capacitor; and a plurality of switches adapted to...
Power factor correction
A power factor correction circuit includes an inductor L1, a diode D1, a switch Q3 and a controller 24. An input voltage V.sub.in is applied to the inductor L1...
Aspects of the disclosure provide a circuit. The circuit includes a depletion mode transistor coupled to a power supply and a current path coupled with the...
Input-parallel/output-parallel inverter assembly control device and method
A method includes controlling multiple networked input-parallel/output-parallel inverters of a fuel cell system as a single inverter assembly by a master...
Switched-capacitor DC-DC converter
A high power density switched-capacitor DC-DC converter is disclosed. According to one aspect, the subject matter described herein includes a high power-density...
Controller and a method for controlling a process variable and a power
supply circuit comprising a power supply...
A controller (100; 200) for controlling a process variable (202) comprises an input interface (102) configured to receive a feedback signal indicative of an...
Shaft coupling apparatus, rotary fluid damper, and deployable device with
magnetic coupling mechanism
A shaft coupling apparatus, a rotary fluid damper, and a deployable device are provided herein. In an embodiment, the shaft coupling apparatus includes a...
Electromagnetic driver with lead-out structure for coil
An electromagnetic driver with lead-out structure for coil includes at least one coil holder and at least one coil disposed on the coil holder. The coil holder...
Linear motor and method for producing a gas supported runner of a linear
A linear motor including a stator including electrical coils; a runner including permanent magnets; and a back iron device, wherein the runner is arranged...
Stator for electric rotary machine and fabricating method of the same
One embodiment provides a stator for an electric rotary machine, the stator including: a stator core having plural slots; segmented coils of plural phases; and...
Method of manufacturing rotor core of electric rotating machine
The method of manufacturing a rotor core of an electric rotating machine includes a preliminary shaping step of forming a boss section having a cylindrical...
Method of repairing a winding in a generator
Method of repairing a winding in a generator, the generator having a generator rotor and a generator stator, wherein the generator rotor and/or stator comprises...
Bus bar module of rotating electric machine
This bus bar module (26) is created by integrally forming at least one coil bus bar with a power line bus bar by means of resin molding, said coil bus bar for...
Structure of brushless direct current motor having direct connection
between main body and controller
A structure of a Brushless Direct Current (BLDC) motor includes a control board having an electric circuit therein, and a housing electrically connected to the...
Drive device for electric vehicle
A drive device for an electric vehicle includes: a speed reduction unit including an input shaft driven by output of an electric motor; a hub unit rotationally...
Human powered generator
A human powered electric energy generator equipped with a mechanism for converting a back and forth motion of a user's legs or arms to a unidirectional circular...
System for instrumenting and manipulating apparatuses in high voltage
A system for energizing, operating and manipulating apparatuses in high voltage systems. The system uses a dielectric gas such as SF.sub.6 as a driving power...
High-voltage flywheel energy storage system
A high-voltage flywheel energy storage system to prevent ionization, plasma formation, and electrical arc discharge and corresponding method are provided. The...
Flywheel system using wire-wound rotor
A flywheel is described having a rotor constructed of wire wound onto a central form. The wire is prestressed, thus mitigating stresses that occur during...
Acoustic covering for a generator set enclosure with pressure sensitive
A housing for a generator set includes an enclosure within which the generator set is disposed. The housing further includes a covering including a...
An outer-rotor motor includes a stationary portion, a rotating portion, and a bearing mechanism arranged to support the rotating portion such that the rotating...
Generator motor and work machine
A generator motor connected to an output shaft of an engine mounted in a work machine includes a terminal box that houses a connector for connecting an exterior...
Electricity collection and distribution ring and electric motor
An electricity collection and distribution ring includes a plurality of bus rings that include a plurality of annular conductive bodies and a plurality of...
Automotive rotary electric machine stator and manufacturing method
In the automotive rotary electric machine stator according to the present invention, a stator winding is constituted by distributed windings, slot-housed...
Stator winding comprising multiple phase windings
Stator winding (18) comprising multiple phase windings (12). A phase winding has at least two partial phase windings (120a, 120b) which include coils (123) and...
Stator for electric rotary machine
A stator for an electric rotary machine includes: a stator core having a plurality of slots; and segmented coils of a plurality of phases (for example, coils 50...
Radially embedded permanent magnet rotor having magnet retention features
and methods thereof
In one embodiment, a permanent magnet rotor is provided. The permanent magnet rotor includes a substantially cylindrical rotor core including an outer edge, an...
A magnet constituting a magnetic pole of a rotor includes an annular ferrite bond magnet provided on an outer circumference of a rotation shaft and a plurality...
Permanent magnet embedded rotor
A permanent magnet embedded rotor disposed coaxially with a cylindrical stator having a plurality of coils in the circumferential direction includes a rotor...
Magnetic field-modulated transverse flux multiphase permanent magnet motor
A magnetic field-modulated transverse flux multiphase permanent magnet motor consisting of a stator and a rotor. A number m of phase armature units are arranged...
Micro-channel heat exchanger integrated into stator core of electrical
An electric machine has a stator that comprises a plurality of laminations with an outer periphery, and each of the laminations has teeth about a central...
Wind turbine generator with movable stator subunits
A generator (5) for a wind turbine (1) is disclosed. The generator (5) comprises a rotor (3) configured to rotate about a rotational axis, and at least one...
Poly-phase reluctance electric motor with transverse magnetic flux
A multi-phase reluctance electric motor with transverse magnetic flux which includes a stator and a rotor. The stator comprises a housing (1) and a number m of...
Concentrated winding stator construction for high efficiency machine
A permanent magnet motor, generator or the like that is constructed with a concentrated winding using a separate tooth. This tooth is preloaded in such a way to...
A pumping set includes an electric motor, which exhibits a stator, a rotor and a can arranged between the stator and rotor, and at least one impeller linked...
Wireless power transmission apparatus using ultrasound
Provided is a wireless power transmission apparatus. The apparatus includes an ultrasound transmitter generating an ultrasound signal in response to an external...
Electronic apparatus, control method, and recording medium
An electronic apparatus includes a communication unit that performs wireless communication, a load unit, a power receiving unit that wirelessly receives power...
Uninterruptible power supply system with fast transfer for undervoltage
source line failures
A UPS system may be operated selectively in either a high efficiency mode or a low efficiency mode. An inductor is connected in series between the transfer...
Piezoelectric charging system and electronic device using same
The present disclosure relates to a piezoelectric charging system, which has two operational modes: a vibration mode and a charging mode. The system includes a...
Contactless battery charger, electronic device, battery pack, and
contactless charging system
A contactless charging system is made up of an electronic device and a contactless charger 200 that recharges the electronic device in a contactless manner. The...
Short distance wireless device charging system having a shared antenna
A wireless charging system includes a power receiving antenna that also functions as a communication antenna. The wireless charging system includes a...