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Vibration-Driven Energy Harvester
A vibration-driven energy harvester includes: a fixed electrode; a movable electrode that is disposed so as to face opposite the fixed electrode and is allowed...
POWER SOURCE DEVICE
A power supply device includes a board that includes an input terminal and an output terminal, and converters disposed on the board. The converters are...
ELECTRONIC CONVERTER, AND CORRESPONDING METHOD FOR DESIGNING A MAGNETIC
A converter includes first and second input terminals and first and second output terminals. The converter also includes an output capacitor coupled between...
CONTROL OF POWER CONVERTERS
Control techniques and circuits for resonant power converters and other power converters are described. Control of power converters based on more than one...
SWITCHING POWER SUPPLY
The switching element is turned ON and OFF according to when the current flowing through the inductance element becomes equal to zero and according to an...
POWER CONVERSION DEVICE
A power conversion device including: a chassis in which a heat sink is housed, and within which an upper space above the heat sink, a lower space below the...
A voltage converter for determining whether input power is DC power or AC power includes a power input terminal, an AC to DC converter, a switch and a DC...
METHOD FOR REDUCING SPURIOUS EMISSIONS FROM A VOLTAGE CONVERTER WITH
CLOCKED POWER SWITCHES
In order to reduce spurious emissions of a current converter or voltage converter having at least one power switch which is actuated with an actuating signal,...
ENHANCED PHASE CONTROL CIRCUIT AND METHOD FOR A MULTIPHASE POWER CONVERTER
A multiphase power converter has a plurality of phase circuits, each of which provides a phase current when being active. During single-phase operation of the...
Adaptive Fail-Save Power-On Control Circuit
A circuit includes an input for receiving power from an external power supply, a voltage regulator coupled to the power input and providing regulated voltage...
SWITCHED-CAPACITOR DC-TO-DC CONVERTERS AND METHODS OF FABRICATING THE SAME
A switched-capacitor DC-to-DC converter includes a logic cell and a capacitor cell vertically overlapping with the logic cell. The logic cell has a plurality...
ADAPTIVE DC-DC CONVERTER
A voltage converter includes a high side transistor, a low side transistor coupled to the high side transistor at a switching node, and an inductor coupled to...
A self-powered converter and more particularly, though not exclusively, a step-down voltage converter requiring no external power supply, which is particularly...
CHARGE PUMP CIRCUIT WITH ENHANCED OUTPUT IMPEDANCE
A programmable charge pump, such as for use in CMOS phase-locked loop circuits, is provided. In an example, the charge pump includes a reference stage that...
DIGITALLY CONTROLLED POWER SOURCE HAVING DC-DC CONVERTERS IN SUBSEQUENT
In a digitally controlled power source, a setting value of an output voltage therefrom is set in advance in the vicinity of an upper limit within a tolerable...
POWER SUPPLY OPERATING IN RIPPLE MODE AND CONTROL METHOD THEREOF
A power supply for powering a load includes a power converter, a remote output node, a transmission line, a feedback circuit and a power controller. The power...
POWER CONTROL DEVICE AND METHOD THEREOF
An embodiment relates to a power control device and a technology capable of stably supplying power when an electrical fuse boots up. The power control device...
BUCK REGULATOR WITH CURRENT CANCELLATION
A method and apparatus for cancelling ripple voltage from an output voltage. A first voltage is input to a converter, which may be a buck converter, a boost...
START-UP CIRCUIT TO DISCHARGE EMI FILTER FOR POWER SAVING OF POWER
A start-up circuit to discharge EMI filter is developed for power saving. It includes a detection circuit detecting a power source for generating a sample...
SWITCHING REGULATOR WITH CONTROLLABLE DEAD TIME AND QUICK START
A driver circuit for driving a switching transistor includes a dead time calibration circuit and/or a quick start circuit. The dead time calibration circuit...
MIDPOINT CONTROL AND GAIN SCHEDULING FOR POWER CONVERTERS
A method and controller for controlling a power converter having a plurality of stacked power cells. A method includes controlling the plurality of stacked...
ANIMAL TAIL-WAGGING SIMULATION DEVICE
An animal tail-wagging simulation device includes a housing, a circuit board mounted in the housing and provided with a driving coil, and a swinging arm...
COIL-OSCILLATOR VIBRATION UNIT FOR RAIL WORKHEAD
A rail maintenance vehicle includes a frame, a workhead, and a vibrating unit. The frame includes wheels that travel along rails. The vibrating unit is coupled...
LINEAR VIBRATING MOTOR
A linear vibrating motor is provided in the present disclosure. The linear vibrating motor includes a shell, a vibrating module, a coil module and an elastic...
LINEAR VIBRATING MOTOR
A linear vibrating motor is provided in the present disclosure. The linear vibrating motor includes a shell, a vibrating unit, a coil module and an elastic...
LINEAR VIBRATING MOTOR
A linear vibrating motor is provided in the present disclosure. The linear vibrating motor includes a housing, a vibrator, a stator and an elastic part. The...
A vibrating actuator is disclosed, comprising: a magnetic part including at least two magnets (1) arranged with same polarities facing each other; a receiving...
A motor of the present invention includes a stator in which a coil is wound around a stator core, and a magnetic circuit unit having a rotor. The rotor holds a...
SYNCHRONOUS RELUCTANCE ROTATING ELECTRIC MACHINE
A synchronous reluctance rotating electric machine of an embodiment has a rotor iron core provided with a plurality of air gap layers, and a stator. The rotor...
DOUBLE-STATOR SWITCHED RELUCTANCE ROTATING MACHINE
A double-stator switched reluctance motor includes an annular rotor, an outer stator disposed outside the rotor, and an inner stator disposed inside the rotor....
ROTOR AND ELECTRICAL MACHINE
A rotor for an electrical machine is provided, comprising a main rotor (2), which can be rotated about a longitudinal axis (3) and which is free of permanent...
APPARATUS AND METHOD FOR FORMING COIL MEMBERS
The invention relates to an apparatus and process for manufacturing coil members (20) to be inserted in the slots (21) of the core of a dynamo electric...
A METHOD FOR FORGING A MAGNET WHEEL FOR A MOTOR VEHICLE ALTERNATOR, COLD
FORGING DIE, AND MAGNET WHEEL OBTAINED...
The method according to the invention involves a hot-forging step and a cold-forging step that occurs after the hot-forging step. A polar wheel (10, 11)...
POWER MACHINE TOOL HAVING AN ELECTRONICALLY COMMUTATED DRIVE MOTOR
In a power machine tool which has an electronically commutated drive motor that has a motor shaft and to which a stator core is assigned that s provided at...
ROTATING ELECTRIC MACHINE
A rotating electric machine with a stator unit having a coil wound therearound includes a busbar unit assembled with the stator unit and having a winding end...
MAGNETIC SENSOR HAVING POSITION-ADJUSTABLE DETECTION PORTION AND MOTOR
HAVING THE SAME
A detection portion on a sensor holder attached to a sensor mounting base is arranged to be opposed to an outer periphery of a sensor gear at a predetermined...
LOCATING STRUCTURE BETWEEN PRINTED CIRCUIT BOARD AND INSULATING BOBBIN IN
A BRUSHLESS MOTOR
A brushless motor includes a printed circuit board having a plurality of locating holes therethrough; and an upper insulating bobbin including a plurality of...
LIQUID COOLED EXTERNAL ROTOR ELECTRIC MACHINE
An embodiment of a liquid cooled external rotor electric machine includes a stator, a generally cylindrical liquid cooling assembly secured to the stator...
COMPACT GASIFIER-GENSET ARCHITECTURE
A compact biomass gasification-based power generation system that converts carbonaceous material into electrical power, including an enclosure that encases: a...
According to an aspect of the present invention, there is provided A poly-generation system comprising: at least one cylinder which forms a combustion chamber;...
DRIVING DEVICE AND AN ELECTRIC MOTORCYCLE DRIVING SYSTEM USING THE DRIVING
The present invention provides a driving device and an electric motorcycle driving system using the driving device. Said driving device comprises a shaft, a...
There is provided a buildup device that builds up a plate-shaped core after rotating the core by a predetermined angle, and that includes a servomotor, a...
BRUSHLESS MOTOR HAVING TERMINAL FIXING BLOCKS
A brushless motor includes a stator having a stator core; and an upper insulating bobbin connected to an upper face of the stator core, an upper surface of the...
An electric machine includes a housing, a stator, and a rotor. The stator includes the rotor. The rotor includes a shaft. The electric machine is equipped with...
The invention is based on a damping unit with at least one bearing element (12) which is provided for damping at least one longitudinal armature oscillation of...
SEALING METHOD FOR INSULATED CONDUCTORS IN ELECTRIC SUBMERSIBLE PUMP
An electric submersible pumping system includes an electric motor and a motor lead cable. The motor lead cable includes a plurality of leads that each includes...
RADIAL LEAD SEAL ASSEMBLY FOR A GENERATOR AND METHOD INCORPORATING THE
A radial lead seal assembly of a generator and a method for sealing a radial chamber from an axial chamber of a generator using a radial lead seal assembly are...
WATERPROOF COVER OF MOTOR
A waterproof cover of a motor comprises a flange unit having a hollow section at a center; a cover unit formed around the flange unit to have a shape declined...
GENERATOR ASSEMBLY WITH COVER PLATES
The present invention relates to a generator assembly with cover plates. The present invention includes a housing with a sidewall and end walls. The end walls...
INSULATOR AND BRUSHLESS DC MOTOR INCLUDING THE SAME
In an insulator to insulate teeth of a stator, which is a three-phase electric motor and which has nine teeth or more, and a conducting wire wound around the...