18th week of 2020 patent applcation highlights part 78 |
Patent application number | Title | Published |
20200136440 | STATOR CORE COMPRISING COBALT CARBIDE AND METHOD OF MAKING THE SAME - Disclosed is an electric machine, comprising: a rotor; and a stator core radially outward from the rotor, the stator core being stationary relative to the rotor during operation; wherein the stator core comprises: carbon fibers and cobalt carbide, and wherein the stator core is greater than or equal to 40% cobalt by weight. A method of forming a stator core, comprising: coating a plurality of carbon fiber sheets with a mixture of resin and cobalt powder, wherein the resin is a phenolic resin, a powdered pitch resin, or a combination comprising at least one of the foregoing; pressing together the plurality of carbon fiber sheets; heat treating the plurality of carbon fiber sheets to form cobalt carbide in the carbon fiber sheets; and forming a plurality of laminations from the resulting mixture to produce the stator core. | 2020-04-30 |
20200136441 | ELECTRICAL MACHINE WITH HYBRID TOOTH DESIGN - Provided is a stator segment for the stator or the rotor of an electrical machine including a segment body circumferentially extending about a longitudinal axis of the stator segment between two circumferential ends. The segment body includes: a plurality of teeth protruding according to a radial direction orthogonal to the longitudinal axis, each tooth circumferentially extending between two respective side faces, the teeth being circumferentially distributed between two end teeth of the teeth, the teeth including at least one intermediate tooth circumferentially included between the end teeth, a plurality of slots, the plurality of slots including a plurality of intermediate slots circumferentially included between the two end slots, wherein side faces of the two end teeth are inclined with or parallel to each other and the side faces of the at least one intermediate tooth are respectively parallel to each other or inclined with respect to each other. | 2020-04-30 |
20200136442 | SUPPORT STRUCTURE SEGMENT FOR A GENERATOR OF A WIND TURBINE - Provided is a support structure segment for a stator of a generator, in particular of a wind turbine, wherein the support structure segment includes a carrier element extending in an axial direction AD, wherein the carrier element includes a base section, a side section and a top section, and wherein the top section is configured to be coupled to a lamination sheet section of the stator by means of a fixing connection. | 2020-04-30 |
20200136443 | MOTOR AND REDUCTION GEAR - A motor includes a motor body, a first cover covering at least one part of the motor body on the radial outer side of the motor body, and a second cover covering at least one part of the motor body on one axial side and the radial outer side of the motor body. The first and second covers make contact on the radial outer side of the motor body. The second cover includes first and second parts, the first part is in a disk shape, the second part is located on the radial outer side of at least one part of the first part and includes a wall part and an eave part, the wall part is formed in the axial direction, and the eave part is formed in the radial direction from one axial end of the radial outer side of the wall part. | 2020-04-30 |
20200136444 | METHOD OF MANUFACTURING MOTOR JACKET INCORPORATING STATOR - A method of manufacturing a motor jacket incorporating a stator includes: the step of inserting the stator into a hole in the jacket that has a diameter larger than the outer diameter of the stator; the step of introducing an elastic adhesive into a gap between a surface of the hole and the stator; and the step of cooling the jacket for a given time after introducing the adhesive into the gap. | 2020-04-30 |
20200136445 | ELECTRICAL MACHINE, IN PARTICULAR FOR A VEHICLE - An electrical machine for a vehicle includes a rotor, which can be rotated about an axis of rotation, by which an axial direction of the electrical machine is defined, a stator with stator windings; and a cooling channel, or a plurality of cooling channels, through which a coolant flows. The stator has stator teeth, which extend along the axial direction and are spaced apart from each other along a circumferential direction and which bear the stator windings. At least one stator winding is embedded in an electrically insulating plastic for thermal coupling, the electrically insulating plastic is arranged, together with the at least one stator winding, in an intermediate space, which is formed between two stator teeth adjacent in the circumferential direction, and the electrically insulating plastic is formed by a first plastic mass of a first plastic material and a second plastic mass of a second plastic material. | 2020-04-30 |
20200136446 | Electric Machine with Q-Offset Grooved Interior-Magnet Rotor and Vehicle - A rotating electric machine includes a stator having a stator coil and a rotor provided rotatably around a specific rotation axis with respect to the stator. The rotor includes a plurality of magnets, a plurality of magnetically-assisted salient pole members provided between poles of any adjacent two magnets from among the plurality of magnets, and a magnetoresistance variation unit provided in the magnetically-assisted salient pole member along an axial direction of the rotation axis at a position offset in a circumferential direction of the rotation axis from a q-axis passing through a salient pole center of the magnetically-assisted salient pole member. The amount of offset of the magnetoresistance variation unit from the q-axis varies depending on positions of the magnetically-assisted salient pole members so that torque fluctuations cancel each other when power is applied. | 2020-04-30 |
20200136447 | ROTOR AND MOTOR COMPRISING SAME - One embodiment discloses a rotor and a motor comprising same, the rotor comprising a first rotor part and a second motor part arranged in an axial direction, wherein the first rotor part comprises a first rotor core, multiple first magnets arranged on the outer circumferential surface of the first rotor core, and a first holder for fixing the multiple first magnets, and the second rotor part comprises a second rotor core, multiple second magnets arranged on the outer circumferential surface of the second rotor core, and a second holder for fixing the multiple second magnets, wherein the first holder comprises multiple first protruding parts protruding towards the second rotor part, and the second holder comprises multiple second protruding parts protruding towards the first rotor part, wherein a gap is included that is formed between the first rotor core and the second rotor core. | 2020-04-30 |
20200136448 | PERMANENT MAGNET MOTOR, COMPRESSOR AND REFRIGERATION SYSTEM - Disclosed are a permanent magnet motor, a compressor and a refrigeration system. In the permanent magnet motor, the diameter D of a contour circle of the smallest inner periphery of a stator, the diameter d of a contour circle of the largest outer periphery of a rotor, the fundamental wave amplitude Bm1 of an air-gap flux density at an average gap between the stator and the rotor, the axial length L of the rotor, the total number of serially connected turns Ns of each phase winding, and a bus DC voltage Udc of a frequency converter supplying power to the permanent magnet motor before inversion are set as: 0.003 Udc≤(D+d)×L×Bm1×Ns≤0.008 Udc. | 2020-04-30 |
20200136449 | ROTOR ASSEMBLY AND METHOD OF MANUFACTURE THEREOF - A method of manufacturing a rotor assembly, the method comprising: providing a magnet in an uncured state comprising a magnetic powder and a binder; providing a shaft onto which the magnet is to be fixed; and assembling an intermediate rotor assembly in which the uncured magnet is positioned on the shaft. The method then comprises heating the intermediate rotor assembly to cure the magnet and to allow a quantity of the binder to leach from the magnet, creating an adhesive bond between the magnet and the shaft. | 2020-04-30 |
20200136450 | METHODS AND SYSTEMS FOR PERMANENT MAGNET MOTORS POWERING ELECTRIC SUBMERSIBLE PUMPS - Systems and methods for connecting rotors between multiple permanent magnet motors. By coupling the rotors of multiple modules, torque may be transferred while maintaining the angular alignment between the stator and rotor magnetic fields of each individual permanent magnet motor. | 2020-04-30 |
20200136451 | SYNCHRONOUS RELUCTANCE MACHINE - A synchronous reluctance machine includes a stator and a rotor spaced apart from the stator by an air gap. The rotor is rotatably mounted about an axis and has laminations arranged axially behind one another. Each lamination has an anisotropic magnetic structure formed by flux blocking sections and flux conducting sections, wherein the flux blocking sections and the flux conducting sections form poles of the rotor. The flux blocking sections form axial channels, wherein in at least some flux blocking sections permanent magnets are provided that do not completely occupy the respective flux blocking section and thus allow axial airflow in all flux blocking sections. The laminated core of the rotor is axially subdivided into at least two component laminated cores, with radial cooling gaps formed between the poles in the region of the q axis as viewed in circumferential direction and between the component laminated cores as viewed axially. | 2020-04-30 |
20200136452 | ROTATING-ELECTRICAL-MACHINE STATOR, AND ROTATING ELECTRICAL MACHINE PROVIDED WITH SAME - A stator of a rotating electric machine includes a stator and a stator coil. The stator core has a plurality of slots. The stator coil is inserted into the plurality of slots. The stator coil includes two or more conductors. The two or more conductors are arranged such that a gap is generated between adjacent crossing conductors, the gap having a shape of a parallelogram. | 2020-04-30 |
20200136453 | STATOR, ASSOCIATED ELECTRIC MOTOR AND ASSOCIATED METHOD - An electric motor with a stator includes a first plurality of coils and a plurality of first electrical connectors. Each of the coils of the first plurality of coils are connected to at least one of the plurality of first electrical connectors. The stator also includes a first guide on a first end of the motor for guiding each of the first electrical connectors. The stator also includes a second plurality of coils. Each of the coils of the second plurality coils is connected to at least one of a plurality of second electrical connectors. The stator also includes a second guide on a opposed second end of the motor positioned at least partially over the second end face of the stator. The second guide guides each of the second electrical connectors. | 2020-04-30 |
20200136454 | INVERTER DRIVEN MOTOR WINDING LIFE EXTENSION - An electric motor control system including an electric motor having a winding with a first and second end, a motor controller having a phase lead, the motor controller operable to direct a phase current to the phase lead. The electric motor control system also includes a first switching device that provides an electrical connection between the phase lead and the first end of the first winding when in a disabled state, and thereby flowing the phase current from the phase lead to the first end of the first winding, and a second switching device operably connected to the motor controller and providing an electrical connection between the second end of the first winding and a common point, when in an enabled state. The motor controller is operable to change the state of the first switching device to enabled, and the second switching device to disabled, under selected conditions. | 2020-04-30 |
20200136455 | HIGH-POWER MOTOR CONTROLLED BY PARALLELLY CONNECTED WINDINGS - A high-power motor controlled by parallelly connected windings is provided. The motor comprises multi-phase windings. Each phase includes n winding branches and 2n power devices, wherein the n winding branches are connected in parallel with each other, and each winding branch is independently controlled by a power device. | 2020-04-30 |
20200136456 | PREFABRICATED COIL FOR A DIRECT DRIVE - A prefabricated coil for placement on a tooth for a direct drive is orthocyclically wound from a wire of circular cross section. The coil includes two straight portions having an inner surface facing an interior of the coil and an outer surface opposite and parallel to the inner surface. A distance between the inner surface and the outer surface defines a thickness of the coil. Two coil overhangs connect the straight portions. A distance between the coil overhangs defines a height of the straight portions. The inner and outer surfaces of the straight portions have the height of the straight portions and a width of the straight portions. A sheet-like insulator covers the straight portions. The wire and the sheet-like insulator are bonded together such that the coil is self-supporting under the application of pressure and temperature. The sheet-like insulator has a joint region at the outer surface. | 2020-04-30 |
20200136457 | STATOR OF ROTATING ELECTRIC APPARATUS - A stator of a rotating electric apparatus is disclosed. The stator includes a stator core that defines a plurality of slots that are located a circumference of the stator core. The stator further includes a stator coil that includes a plurality of conductors electrically connected, located in the plurality of slots, and configured to conduct electricity. The stator coil includes a plurality of phase coils that are each connected to a phase of a power source. A first conductor of the stator coil is connected to a power line and is located in an nth layer that is an outermost layer of one of the plurality of slots. An Nth conductor of the stator coil is connected to a neutral line and is located in an n−1th layer that is located nearer to a center of the stator than the nth layer. | 2020-04-30 |
20200136458 | ROTATING ELECTRICAL MACHINE - A rotating electrical machine of the present invention comprises a rotor; a stator disposed facing the rotor with a predetermined gap, and including a stator core and a stator coil; a high voltage bushing that outputs electricity from the stator coil to the outside; an electric power line including at least a connection ring extending in a circumferential direction, and connecting the high voltage bushing and one side of a coil end which is an axial-direction end of the stator coil to form an electrical path; and a dummy ring including a metal as a main material, and disposed in alignment with the connection ring in the circumferential direction and in a same circumference as the connection ring. | 2020-04-30 |
20200136459 | MOTOR - There is provided an easily manufacturable motor. The motor comprises a conductor ( | 2020-04-30 |
20200136460 | BRUSH DEVICE, ELECTRIC MOTOR WITH BRUSH DEVICE, AND MANUFACTURING METHOD OF BRUSH DEVICE - In order to facilitate the assembly of the brush assembly and to improve the productivity, the brush device includes a positive side brush subassembly having a positive side brush for feeding a commutator, a positive side brush holder for holding the positive side brush, and a positive side plate to which the positive side brush holder is attached, and a negative side brush subassembly having a negative side brush for feeding the commutator, a negative side brush holder for holding the negative side brush, and a negative side plate to which the negative side brush holder is attached. The positive side brush subassembly and the negative side brush subassembly are combined with each other. | 2020-04-30 |
20200136461 | MOTOR - To prove a motor capable of suppressing labor and costs even when the motor may be subjected to a large impact be used for a floating mobile body such as a drone. The motor ( | 2020-04-30 |
20200136462 | DRIVE UNIT FOR AN ELECTRIC BICYCLE - A drive unit for an electric bicycle with a drive housing and with a plug-in connector, wherein the plug-in connector is connected to the drive housing and wherein the plug-in connector includes a plurality of connector contacts and a plurality of plug contacts. The plug-in connector includes a circuit board. A distribution conductor track, which provides an electrical contact between a first number of connector contacts and a different second number of plug contacts, is formed on the circuit board. | 2020-04-30 |
20200136463 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a compression mechanism, an electric motor, an inverter, a housing, and a cover defining an accommodation chamber with the housing to accommodate the inverter. The cover includes a plate-shaped body wall and insertion holes extending through a periphery of the body wall. The body wall includes a first surface opposed to the inverter in the accommodation chamber, a second surface, a first thickness portion having a first thickness, and a second thickness portion located around at least one of the insertion holes. The second thickness portion has a second thickness that is smaller than the first thickness and is obtained by recessing the body wall from the first surface toward the second surface. | 2020-04-30 |
20200136464 | ELECTROSTATIC GENERATOR ELECTRODE-CENTERING AND SEISMIC-ISOLATION SYSTEM FOR FLYWHEEL-BASED ENERGY STORAGE MODULES - Robust electro-static (ES) device embodiments, with application to energy storage flywheels as an example, are described that provide reliable, high-efficiency operation in the presence of thermal and mechanical perturbations, as well as seismic events. Electro-static generators and motors, when augmented with magnetic bearings, passive three-dimensional stabilization techniques and dynamic touch-down bearings, enable robust performance in the face of these environmental concerns, as well as efficient operation during typical operational sequences, including spin-up and steady-state modalities. | 2020-04-30 |
20200136465 | LINEAR ACTUATOR - The present invention relates to a linear actuator comprising a console, an outer tube connected to the console, an electric motor, a transmission, and a spindle in connection with the transmission. The linear actuator comprises a spindle nut on the spindle and an inner tube connected to the spindle nut. The spindle nut and the inner tube are guided inside the outer tube. The linear actuator comprises a control box which is connected to the console by means of a snap connection. The linear actuator further comprises an end stop arrangement having an end switch for each direction of movement of the spindle nut. An object underlying the invention is to provide a simpler connection of the control box to the linear actuator. A further object is to provide a less complex construction of the end stop arrangement of a linear actuator. To this end, the control box is connected to the console by means of a snap connection. Further, the linear actuator comprises a sliding element arranged between the spindle nut and the end switches, and where the sliding element is actuated by the spindle nut. | 2020-04-30 |
20200136466 | APPARATUS FOR CHARGING ELECTRIC MOBILITY - An apparatus of charging an electric mobility may include a tire wheel having an external surface configured to be coupled to a tire and an internal surface in which an empty space is formed, a battery accommodated in the empty space of the internal surface of the tire wheel and mounted, like the tire wheel, on a rotation shaft fixed to the tire wheel to be rotationally driven, a stopper configured to selectively couple the battery to the rotation shaft, and a controller connected to the stopper and configured to control selective coupling of the rotation shaft to the battery by the stopper, wherein the stopper is controlled by the controller so that the battery is charged using an induced electromotive force generated between a coil wound on the battery and a permanent magnet which is mounted to face the battery. | 2020-04-30 |
20200136467 | SYSTEM AND METHOD FOR HARVESTING ENERGY - An energy harvesting system including a channel, a first coil having a clockwise rotation around the channel, a second coil having a counter clockwise rotation around the channel, and magnetic train. The magnetic train is configured to move through the channel, the magnetic train including a plurality of oppositely-alternating magnets. | 2020-04-30 |
20200136468 | ELECTRIC MOTOR WITH INTEGRATED MOTOR CONTROLLER - A motor unit system is described. The motor unit system may include a housing with a brushless direct current motor and a motor controller contained within the same housing, where the motor controller comprises a printed circuit board, and an integrated circuit mounted on a component side of the printed circuit board, and a base plate at one end of the housing. The integrated circuit may be interposed between the base plate and the printed circuit board. | 2020-04-30 |
20200136469 | ELECTRIC MOTOR AND VENTILATION FAN - An electric motor includes: a stator having a sleeve shape; a rotor inside the stator; a shaft coupled to the rotor and stretching along a central axis of the stator; a board case on one end side of the stator in a direction along the central axis; a circuit board on an opposite side of the stator with the board case interposed; a heat generating component on a mounting surface, which is opposite to a surface of the circuit board oriented to a side of the stator; a casing that covers a side of the mounting surface; and a heat transfer component between a surface of the casing that faces the circuit board and the heat generating component. The board case is provided with an extension portion that extends toward the circuit board. The heat transfer component is formed with a first engagement portion with which the extension portion engages. | 2020-04-30 |
20200136470 | ELECTRIC MACHINE WITH FLUID COOLED STATOR ASSEMBLY - In some examples, an electric machine system including an outer housing; a stator assembly within the outer housing; a corrugated ring located between the stator assembly and the outer housing, the corrugated ring defining a gap between the stator assembly and the outer housing; and a pump configured to transfer a fluid through the gap between the stator assembly and housing to remove heat from at least one of the stator assembly or outer housing. | 2020-04-30 |
20200136471 | COOLING SYSTEM - A cooling system includes a coolant circulation flow path, a motor thermometer, an inverter thermometer, and a controller connected to the motor thermometer and the inverter thermometer. An oil cooler that cools oil supplied to the motor, the inverter that supplies electric power to the motor, a radiator that cools the coolant, and a coolant pump that pumps the coolant are arranged in series in a channel of the coolant circulation flow path. The controller executes a first step of calculating a drive output of the coolant pump based on the temperature of the motor, a second step of calculating a drive output of the coolant pump based on the temperature of the inverter, and a third step of selecting one of a calculation result of the first and second step having a larger drive output to drive the coolant pump. | 2020-04-30 |
20200136472 | WINDING SEPARATORS - An electric machine includes a winding yoke defining a plurality of winding slots between circumferentially spaced apart teeth. A respective winding separator is mounted within each of the winding slots. The winding separator is mounted to a keying feature that extends from the winding yoke into the winding slot. The winding yoke can be a laminated structure, wherein the teeth and keying features are part of a common laminated structure with the winding yoke. The winding yoke can be a stator, and a rotor can be mounted within the stator for rotary movement relative to the stator. | 2020-04-30 |
20200136473 | ELECTRIC DRIVE APPARATUS, AND ELECTRIC POWER STEERING APPARATUS - In an electric power steering apparatus, a motor housing includes an axial end part opposite to an output part of an electric motor. An electronic control section is arranged at the axial end part of the motor housing. The electronic control section includes a control circuit part, a power supply circuit part, and a power conversion circuit part. The axial end part of the motor housing includes a power conversion part thermal radiation region and a power supply part thermal radiation region. The power conversion circuit part is mounted to the power conversion part thermal radiation region to allow heat to be transferred from the power conversion circuit part to the motor housing. The power supply circuit part is mounted to the power supply part thermal radiation region to allow heat to be transferred from the power supply circuit part to the motor housing. | 2020-04-30 |
20200136474 | ELECTRIC MOTOR WITH NAVIGATIONAL LIGHT - A motor unit system with a navigational light is described. The motor unit system includes a housing with a circular cross-section and mounting holes on one end of the housing, and a brushless direct current motor comprising a shaft and a winding. The shaft may extend from inside the housing to outside of the housing through a hole at the one end of the housing or at another opposite end of the housing. The winding may be contained within the housing, and a light source may also be contained within the housing. An opening in the housing is adapted to allow light from the light source to exit the housing. | 2020-04-30 |
20200136475 | CONTROLLED LOAD DEVICE AND MANUFACTURING METHOD FOR A CONTROLLED LOAD DEVICE - A controlled load device including a load, a control electronics unit, which is connected via at least one conductor to the load in such a way that the load may be switched and/or energized via at least one electrical signal relayed via the at least one conductor, and at least one first electromechanical feedback component, which is designed for guiding or feeding back high-frequency interference signals from the load into the control electronics unit, the load connected via the at least one conductor to the control electronics unit having a load impedance including a load impedance minimum at a load impedance minimum frequency, and the first electromechanical feedback component having a first feedback impedance including a first feedback impedance minimum at a first feedback impedance minimum frequency between 1% of the load impedance minimum frequency and 100% of the load impedance minimum frequency. | 2020-04-30 |
20200136476 | Magnet Ring with Jittered Poles - An apparatus includes a first platform and a second platform configured to rotate relative to the first platform about an axis. A magnet ring is mounted to the first platform and centered around the axis. The magnet ring includes four or more magnetized poles positioned such that each respective boundary between neighboring poles is shifted relative to a corresponding nominal boundary defined by a uniform spacing of boundaries of the poles around the magnet ring. The shifted boundaries of the poles define a characteristic shift pattern for the magnet ring. A magnetic field sensor is connected to the second platform. Circuitry is configured to (i) determine a magnetic field pattern generated by the poles based on data generated by the sensor and (ii) determine a rotational position of the first platform relative to the second platform by correlating the magnetic field pattern to the characteristic shift pattern. | 2020-04-30 |
20200136477 | MOTOR - There is provided a motor having a sensor disposable at a desired position. The motor comprises a frame ( | 2020-04-30 |
20200136478 | ELECTRIC MOTOR WITH SENSORS - A motor unit system is described that includes a housing, a brushless direct current motor comprising a shaft and a winding, the shaft extending from inside the housing to outside of the housing through a hole at the one end of the housing or another end of the housing, the other end of the housing being opposite the one end of the housing, the winding being contained within the housing, a motor controller contained within the housing, and a motor sensor contained within the housing. The motor sensor may include a current sensor, a temperature sensor, or both. | 2020-04-30 |
20200136479 | ELECTRIC MOTOR WITH AN INTEGRAL MOTOR CONTROLLER - A motor unit system is described. The motor unit system may include a housing with a circular cross-section and a brushless direct current motor with a shaft and a winding, the shaft extending from inside the housing to outside of the housing. A motor controller may also be contained within the housing, along with a first connector and a second connector. The first connector may include a first pair of contacts electrically coupled to the motor controller at a power supply input. The second connector may be adapted to operate independently from the first connector, and may include a second pair of contacts electrically coupled to the motor controller at a control input. | 2020-04-30 |
20200136480 | METHOD FOR MANUFACTURING STATOR FOR ELECTRIC ROTARY MACHINE - A method for manufacturing a stator for an electric rotary machine including a stator core formed by stacking a plurality of steel plates and a coil attached to the stator core, the method includes forming the steel plates, forming the stator core by stacking and fixing the plurality of steel plates with an adhesive, attaching the coil to the stator core, and changing a stack strength of the stator core, by deteriorating the adhesive such that a bending resonance frequency of the stator does not overlap with a pre-measured circular resonance frequency of the stator, the bending resonance frequency varying depending on the stack strength of the plurality of steel plates. | 2020-04-30 |
20200136481 | METHOD OF MANUFACTURING A STATOR - A method for manufacturing a stator includes the steps of: (1) providing a stator core module having a first stator fixture disposed on a first side of the stator core module, the first stator fixture is configured to support a first set of stator core junction portions in a fixed position; (2) providing a first crown module having a set of first crown junction portions and a first crown fixture to support the first set of first crown junction portions; (3) aligning the first stator fixture with the first crown fixture so that the first set of stator core junction portions are aligned with the first crown junction portions; and (4) joining the first set of stator core junction portions with the first crown junction portions. | 2020-04-30 |
20200136482 | MODULAR STATOR - A modular stator includes a first stator module and a second stator module. The first stator module includes a plurality of first coil end regions and a plurality of first junctions. The second stator module includes a plurality of second coil end regions and a plurality of second junctions. The first stator module and the second stator module are joined at the plurality of first junctions and the plurality of second junctions. | 2020-04-30 |
20200136483 | Method for Producing a Rotor for an Electrical Machine, in Particular of a Motor Vehicle, and Rotor and Motor Vehicle - A method produces a rotor having at least one laminated core for an electrical machine, in which method at least one partial region of the rotor is provided with a plastic by injection molding. The method provides at least one disk following the laminated core in the axial direction of the rotor, by which disk the partial region is at least to a large extent delimited in the axial direction of the rotor; and by the injection molding, injects the plastic into the partial region via at least one through-opening in the disk leading into the partial region. | 2020-04-30 |
20200136484 | ROTATING ELECTRIC MACHINE - A rotating electric machine includes a rotor and a stator. The rotor includes a plurality of rotor portions provided by circumferentially dividing the rotor. The rotor portions are each movable radially outward. The rotating electric machine is structured such that the rotor portions each move radially outward so as to increase a radial gap between the rotor and the stator. | 2020-04-30 |
20200136485 | Electric Machine With Permanent Magnet Rotor - A multi-phase electric machine may include a stator, and a rotor for rotating within the stator, the rotor including poles having combination magnet pieces with varying strengths and dimensions creating a non-sinusoidal back EMF. In one aspect, a multi-phase electric machine may include a stator, and a rotor for spinning within the stator, the rotor includes a plurality of poles having magnet assemblies includes at least a low strength magnet and a high strength magnet therein for creating a non-sinusoidal back EMF. In other aspects, a multi-phase electric machine of the present disclosure includes a stator, and a rotor for spinning within the stator, the rotor including a plurality of poles having magnet assemblies includes at least a first magnet and second magnet therein for creating a non-sinusoidal back EMF wherein a strength ratio of the first magnet and second magnet greater than the absolute value of 1. | 2020-04-30 |
20200136486 | BRUSHLESS DIRECT CURRENT ELECTRIC MOTOR WITH REDUCED COGGING TORQUE AND PRODUCTION METHOD THEREOF - The invention relates to a brushless direct current motor, comprising a rotor made up of at least one permanent magnet and a stator comprising at least three partitions ( | 2020-04-30 |
20200136487 | MAGNET HOLDER, SENSOR MAGNET ASSEMBLY, ELECTRIC MOTOR COMPRISING A SENSOR MAGNET ASSEMBLY, AND METHOD FOR PRODUCING A SENSOR MAGNET ASSEMBLY - A magnet holder for attaching a sensor magnet to a motor shaft of an electric motor, including a receiving recess for the sensor magnet and an attachment region for attachment to the motor shaft, wherein the receiving recess is radially delimited by a wall that, over the circumference thereof, includes a plurality of weak spots which have a reduced wall thickness and are designed so that free spaces remain between the weak spots and the sensor magnet arranged in the receiving recess. The invention further relates to a sensor magnet assembly, to an electric motor comprising a sensor magnet assembly, and to a method for producing a sensor magnet assembly. It is the object of the present invention to very reliably and durably attach a sensor magnet to the end of a motor shaft in a very economical and simple manner, wherein adhesive methods are to be dispensed with. | 2020-04-30 |
20200136488 | VIBRATION ACTUATOR AND VIBRATION PRESENTING APPARATUS - Provided is a vibration actuator that includes: a fixing part including a coil, and a core around which the coil is wound, the core including both ends projecting from the coil; a movable part disposed adjacent and opposite to the both ends of the core with a gap provided therebetween in a direction crossing with a winding axis of the coil, the movable part including a yoke formed of a magnetic material, the movable part being fixable to an operation contact surface part that is operated by contact; and a plate-shaped elastic part fixed between the movable part and the fixing part, the plate-shaped elastic part including an elastically deformable bellows-shaped part, the plate-shaped elastic part elastically supporting the movable part to be movable with respect to the fixing part in a direction opposite to at least one of the both ends. | 2020-04-30 |
20200136489 | SOUND VIBRATION ACTUATOR - A sound vibration actuator includes: a casing having an internal space formed by an underside casing part, a side periphery casing part, and a top casing part; a coil part coupled to the top casing part in such a manner as to receive power from the outside; a magnet part disposed in the internal space of the casing and having a magnet and a weight; an elastic member whose one surface coupled to the magnet part; and a weight part coupled to the coil part. The sound vibration actuator can be varied in coupling ways of the components thereof to generate vibrations in a high frequency band as well as a low frequency band. | 2020-04-30 |
20200136490 | VEHICLE SHOCK ABSORBER CAPABLE OF GENERATING ELECTRICITY - The disclosure relates to the field of vehicle energy recovery devices, and particularly discloses a vehicle shock absorber capable of generating electricity which includes a shock absorber body, a piston rod and a bearing spring. The shock absorber body includes an inner cylinder and an outer cylinder, and an oil storage chamber communicated with an inner cavity of the inner cylinder is formed between the inner cylinder and the outer cylinder. Both ends of the bearing spring are respectively connected to an upper end of the piston rod and the outer cylinder. A bottom end of the piston rod is connected to a piston in sliding fit with the inner cylinder, and a coil is sealedly disposed in the piston. Opposite sides inside the oil storage chamber are each provided with a permanent magnet with an opposite magnetic pole, and the coil is connected to an electrode lead. | 2020-04-30 |
20200136491 | DRY TYPE TORQUE CONVERTER FOR ELECTRIC VEHICLE AND CONTROLLING METHOD THEREOF - A dry type of torque converter for an electric vehicle and a control method thereof are disclosed. | 2020-04-30 |
20200136492 | IMPROVED MAGNETIC CLUTCH ASSEMBLY - A magnetic clutch assembly comprises circumferentially spaced coil units, a rotor, and an electrical control unit to controllably supply energizing current for inducing electromagnetic fields at each coil unit, to initiate rotation of the rotor. The rotor comprises a driving ring receivable within an interior of the coil units, a driven ring concentric to the driving ring and connectable with a mechanical load, pairs of permanent magnets consisting of a driving ring magnet and a driven ring magnet which is magnetically coupled to the driving ring magnet, and circumferentially spaced offset magnets provided with the driven ring whose magnetization direction is angularly offset to the magnetization direction of an adjacent driven ring magnet. Curving magnetic field lines of each offset magnet are superposed with the magnetic field lines of an adjacent driven ring magnet that are curving in a different direction to suppress generation of a parasitic back electromotive force. | 2020-04-30 |
20200136493 | HIGH EFFICIENCY, PARALLEL, POWER CONVERSION SYSTEM WITH ADAPTIVE DYNAMIC EFFICIENCY OPTIMIZATION - A system for controlling a plurality of power converters in a power system so as to turn each of the plurality of power converters into an ON state or an OFF state as a function of a sensed input power and a sensed output power such that one or more of the plurality of power converters in the ON state are operating in an optimal power efficiency range. | 2020-04-30 |
20200136494 | DC-DC CONVERTER HAVING A SWITCH ON-TIME CONTROL LOOP WITH A SWITCHED-CAPACITOR CIRCUIT FOR ERROR-BASED ADJUSTMENT - An apparatus includes a direct-current to direct-current (DC-DC) converter having an output node and at least one electronic switch. The DC-DC converter also includes: 1) a first feedback loop configured to control a voltage at the output node by adjusting a first switching parameter of the at least one electronic switch; and 2) a second feedback loop configured to adjust a second switching parameter of the at least one electronic switch. The second feedback loop includes a switched-capacitor circuit configured to determine a threshold signal based on an error between a reference signal and a control signal for the at least one electronic switch. The second feedback loop is configured to adjust the second switching parameter based on a comparison of an on-time signal with the threshold signal. | 2020-04-30 |
20200136495 | POWER CONTROL CIRCUIT AND A POWER CONTROL METHOD - A power control circuit includes a detection device, a first control device, and a second control device. When the detection signal is changed from lower to higher than the first voltage, the first control device's output is changed to the second potential. When the detection signal is changed from higher to lower than the second voltage, the first control device's output is changed to the first potential. When the detection signal is changed from lower to higher than the third voltage, the second control device's output is changed to the fourth potential. When the detection signal is changed from higher to lower than the fourth voltage, the second control device's output is changed to the third potential. According to the first or second potentials, the circuit device turns on/off the first function. According to the third or fourth potentials, the circuit device turns on/off the second function. | 2020-04-30 |
20200136496 | SWITCHING REGULATOR - A switching regulator control circuit is used in a switching regulator that converts an input voltage into an output voltage by the switching of a switching device, and generates a switching signal for controlling the ON/OFF operation of the switching device. The switching regulator control circuit has a fault detector and a fault protector. The fault detector detects, based on the duty ratio of the switching signal or a variable correlated to it and included in a control signal used to generate the switching signal, a fault state where the duty ratio falls outside the normal modulation range. The fault protector stops the switching of the switching device when the fault detector detects a fault state. | 2020-04-30 |
20200136497 | EMC Filter and Use Thereof - A filter component such as an EMC filter and a method for using an filter component are disclosed. In an embodiment, a filter component includes a resonant circuit having an inductance and at least one capacitor that is connected in series with the inductance, wherein the resonant circuit is designed and arranged for attenuating harmonics in a longwave band. | 2020-04-30 |
20200136498 | POWER CONVERTER ARRANGEMENT ATTENUATION ELEMENT FOR ELECTRICAL RINGING - A power converter arrangement including a semiconductor switch system including at least one controllable switch, a capacitor unit including at least one capacitor having a capacitance value, the capacitor unit being operatively connected to the semiconductor switch system, a conductor arrangement including of at least one conductor adapted to conduct an electric current between the capacitor unit and the semiconductor switch system, wherein the at least one conductor having a resistance and an inductance, and wherein a resonant circuit is formed by the resistance, the inductance and the capacitance, and wherein the power converter arrangement includes at least one attenuating element for attenuating an electrical ringing in the resonant circuit, wherein the at least one attenuating element is conductively isolated from the resonant circuit, and wherein the at least one attenuating element includes ferromagnetic material, and wherein the at least one attenuating element is magnetically coupled to the at least one conductor such that variations in the electric current intensity of the at least one conductor induces eddy currents within the at least one attenuating element. | 2020-04-30 |
20200136499 | REGULATOR DEVICE AND CONTROL METHOD THEREOF - A regulator device includes a first switch, a second switch, a protecting circuit, and a driving circuit. The first switch is configured to receive power supply voltage. One terminal of the second switch and the first switch are coupled at a node. The other terminal of the second switch is coupled to ground. The protecting circuit is coupled to the node, and outputs at least one protecting signal according to the turn on/off state of the first switch and the second switch and the voltage of the node. The driving circuit is coupled to the first switch, the second switch, and the protecting circuit, and turns off the first switch or the second switch according the at least one protecting signal. | 2020-04-30 |
20200136500 | POWER CONVERSION APPARATUS AND METHOD, AND ELECTRONIC APPARATUS USING SAME APPARATUS - A power conversion device includes a rectifying circuit that full-wave rectifies an input AC power, a first conversion circuit that includes a passive element, a first switching element, and a second switching element and digitally converts a rectified power while compensating a power factor of the rectified power through at least one of the passive element, the first switching element, and the second switching element, a second conversion circuit that converts the digitally-converted power into a power with a specified magnitude and output the power with the specified magnitude, a device circuit that consumes an output power of the second conversion circuit, a first control circuit that monitors current consumption of the device circuit and controls an amount of output current of the second conversion circuit based on the current consumption of the device circuit, and a second control circuit that controls a power factor compensation degree of the first conversion circuit based on the current consumption, wherein the second control circuit may alternately activate the first and second switching elements according to the current consumption or deactivate the second switching element and switch the first switching element. | 2020-04-30 |
20200136501 | POWER SUPPLY CONTROL CIRCUIT, POWER SUPPLY DEVICE AND ELECTRONIC APPARATUS - The present invention provides a power control circuit and a power device using the power control circuit, wherein quasi resonance is performed by the power control circuit using a coil, current flowing in the coil is monitored by a simple configuration, and a zero cross point or a bottom in resonance is detected. The present invention provides a power control circuit and a power device using the power control circuit. The power control circuit includes a detection circuit connected to a drain of MOSFET, the MOSFET serially connected between an inductor connected to an alternating-current wire and a current sensing resistor connected to ground potential; and a quasi resonance control circuit connected to the detection circuit and the MOSFET for performing quasi resonance control to inductor-current at a zero cross point or a bottom point in a time sequence of discharging while conducting the inductor-current of the inductor. | 2020-04-30 |
20200136502 | MULTI-STAGE CHARGE PUMP REGULATION ARCHITECTURE - A multi-stage charge pump including a first stage configured to generate a first output voltage, a last stage configured to receive the first output voltage from the first stage and output a second output voltage, a switch configured to receive the second output voltage from the last stage, and a voltage regulator circuit configured to control the second output voltage of the last stage to maintain a substantially constant on-resistance of the switch. | 2020-04-30 |
20200136503 | MULTI-STAGE CHARGE PUMP WITH INTER-STAGE LIMITATION CIRCUIT - A multi-stage charge pump circuit including a first stage of the multi-stage charge pump having a first voltage output, a last stage of the multi-stage charge pump having a first voltage input, and an inter-stage limitation circuit configured to protect a voltage drop of the first voltage output of the first stage of the multi-stage charge pump when there is a voltage drop on the first voltage input of the last stage of the multi-stage charge pump. | 2020-04-30 |
20200136504 | RECONFIGURABLE UTILITY POWER INPUT WITH PASSIVE VOLTAGE BOOSTER - Methods and systems for reconfigurable utility power with passive voltage booster for a transport climate control system are provided. The transport climate control system includes a passive boost circuit. The system also includes a controller configured to determine whether the passive boost circuit is connected to one of a first utility power and a second utility power. The controller instructs the passive boost circuit to operate in a first configuration when the passive boost circuit is connected to the first utility power and instructs the passive boost circuit to operate in a second configuration when the passive boost circuit is connected to the second utility power. The system further includes a load such as a motor. The load can drive a device such as a compressor, a fan, etc. The load is connected to the passive boost circuit and configured to receive power from the passive boost circuit. | 2020-04-30 |
20200136505 | SWITCHED RESISTOR DC-DC CONVERTER - Embodiments of DC-DC converters are disclosed. In an embodiment, a DC-DC converter includes a switched resistor connected between an input terminal of the DC-DC converter from which an input voltage is received and an output terminal of the DC-DC converter from which an output voltage is output and a comparator configured to compare the output voltage with a reference voltage and to switch on or off the switched resistor based on the comparison between the output voltage and the reference voltage. | 2020-04-30 |
20200136506 | SWITCH-MODE POWER SUPPLY CONTROLLER - A switch-mode power supply and control circuitry that reduces variation in the switching frequency of the power supply with changes in loading. In one example, a switch-mode power supply includes an inductor, a transistor, and control circuitry. The transistor is coupled to the inductor, and configured to charge the inductor. The control circuitry is coupled to the transistor. The control circuitry is configured to turn off the transistor for a first time period. The first time period is a function of voltage across the inductor during the first time period. The control circuitry is also configured to determine whether the switch-mode power supply is operating in continuous conduction mode or discontinuous conduction mode. The control circuitry is further configured to add a predetermined fixed interval to the first time based on the switch-mode power supply operating in discontinuous conduction mode. | 2020-04-30 |
20200136507 | STABLE DIGITAL INTEGRATOR CIRCUIT FOR BOOST CONVERTER - An electrical device includes an integrated circuit having device circuitry and a boost converter coupled to the device circuitry. The boost converter includes a digital integrator circuit having: a first comparator; a second comparator; a counter configured to count up, count down, and pause based on a first output signal provided by the first comparator and based on a second output signal provided by the second comparator; and a digital-to-analog converter (DAC) configured to provide a feedback adjustment signal for the boost converter based on a count value provided by the counter. | 2020-04-30 |
20200136508 | ADAPTIVE SYNCHRONOUS RECTIFICATION IN A VOLTAGE CONVERTER - A circuit includes a first transistor and a second transistor coupled to the first transistor at a switch node and to a ground node. An estimator circuit receives a first signal to control an on and off state of the first transistor. The estimator circuit generates a second signal to control the on and off state of the second transistor. The second signal has a pulse width based on a pulse width of the first signal. A clocked comparator includes a clock input, a first input, and a second input. The first input receives a voltage indicative of a voltage of the switch node. The second input is coupled to a ground node. The clock input receives a third signal indicative of the second signal. The clocked comparator generates a comparator output signal. The estimator circuit adjusts the pulse width of the second signal based on the comparator output signal. | 2020-04-30 |
20200136509 | REGULATOR DEVICE AND CONTROL METHOD THEREOF - A regulator device includes a first switch, a second switch, and a controlling circuit. A control terminal of the first switch is configured to receive a first control signal. A first terminal of the second switch is coupled with a second terminal of the first switch at a node. A control terminal of the second switch is configured to receive a second control signal. The controlling circuit is coupled to the control terminal of the first switch, the control terminal of the second switch, and the node. The controlling circuit outputs the first control signal with a first slop to the first switch during a first period, and outputs the first control signal with a second slop to the first switch during a second period. The first period is less than the second period, and the first slope is larger than the second slope. | 2020-04-30 |
20200136510 | ELECTRONIC CIRCUIT FOR ESTIMATING INTENSITY OF LOAD CURRENT BASED ON INTERNAL CONDITION OF BOOST CONVERTER - An electronic circuit includes an inductive element outputting an inductor current, a first transistor, a second transistor, and a load current estimator circuit. The first transistor is connected between a first end of the inductive element and a reference terminal. The second transistor is connected between the first end of the inductive element and an output terminal for outputting a load current. The load current estimator circuit receives a first voltage which is sensed between both ends of the second transistor in response to the inductor current while the first transistor is turned off and the second transistor is turned on, and outputs a second voltage based on a level of the first voltage at a reference time point within a time interval when the second transistor is turned on. The second voltage is associated with an intensity of the load current. | 2020-04-30 |
20200136511 | METHOD OF OPERATING A CONTROLLER, CORRESPONDING CIRCUIT AND DEVICE - A PWM signal generator to provide a supply current to an electrical load generates PWM signals at a first frequency, the PWM signals having a duty cycle. Operating the generator involves receiving a set point signal indicative of a target average value for the supply current, sensing a sensing signal indicative of a current actual value of the supply current, performing a closed-loop control of the supply current targeting the target value for the supply current via a controller such as a PID Controller which controls the duty cycle of the PWM signals generated by the PWM signal generator as a function of the offset of the sensing signal with respect to the set point signal. | 2020-04-30 |
20200136512 | DC-DC CONVERTER AND DISPLAY APPARATUS HAVING THE SAME - A DC-DC converter includes: a first switch; a second switch connected to the first switch; a mode selecting circuit to select a converting mode from one of at least a first mode and a second mode based on an input voltage; and a controller to generate a first switching control signal for controlling the first switch based on the converting mode, and a second switching control signal for controlling the second switch based on the converting mode. | 2020-04-30 |
20200136513 | SUPPLY MODULATOR FOR POWER AMPLIFIER - According to some example embodiments, an apparatus includes a buck-boost converter, a first buck converter connected at an output terminal of the buck-boost converter, a second buck converter connected at the output terminal of the buck-boost converter, a first LA including a first supply voltage input connected to the output terminal of the buck-boost converter, and an output terminal connected to an output terminal of the first buck converter, where the first LA is configured to provide a first modulated supply voltage to a first PA of a first transmitter, and a second LA including a second supply voltage input connected to the output terminal of the buck-boost converter, and an output terminal connected to an output terminal of the second buck converter, where the second LA is configured to provide a second modulated supply voltage to a second PA of a second transmitter. | 2020-04-30 |
20200136514 | System and Method for Balancing Current of Converter Phases - Systems and methods for balancing phase currents of the phases of a multiphase converter include alternately connecting the phases during respective intervals to an input current and sampling, at a node of the multiphase converter that is common to the phases, the input current provided to the phases to obtain respective input current samples for the phases. While the input current samples are unequal, the intervals are adjusted to minimize inequality of the input current samples and thereby balance the phase currents. | 2020-04-30 |
20200136515 | TWO-STAGE MULTI-PHASE SWITCHING POWER SUPPLY WITH RAMP GENERATOR DC OFFSET FOR ENHANCED TRANSIENT RESPONSE - A multi-phase switching power converter is disclosed in which the duty cycle of active phases following a phase shedding transition is temporarily adjusted to increase the operating speed of the multi-phase switching power converter. | 2020-04-30 |
20200136516 | Method for Operating a Switched Mode Power Supply of the Buck Type and Corresponding Switched Mode Power Supply - In an embodiment, a method for operating a voltage step-down switched mode power supply includes delivering an output voltage with an output stage having a power transistor that is cyclically made conducting by a first control signal. In PWM mode, the method includes generating an error voltage based on the output voltage and a reference voltage, and applying a first delay on a first control signal. The first delay is determined so as to reduce a difference between the error voltage and the reference voltage. | 2020-04-30 |
20200136517 | Parallel Hybrid Converter Apparatus and Method - An apparatus includes an isolated power converter having an input connected to an input dc power source, a first output and a second output, and a non-isolated power converter having an input connected to the second output of the isolated power converter, wherein the first output of the isolated power converter and an output of the non-isolated power converter are connected in series. | 2020-04-30 |
20200136518 | TRANSFORMER AND LLC RESONANT CONVERTER HAVING THE SAME - A transformer and an LLC resonant converter are provided. The transformer includes first and second cores configured to include a pair of outer foots and a middle foot positioned between the outer foots, and to induce a magnetic field formation; first and second inductor winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the first core, and to be connected in series with each other; and first and second transformer winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the second core, wherein the pair of outer foots of the first core face the pair of outer foots of the second core, the middle foot of the first core faces the middle foot of the second core, and the first core and the second core are disposed to be spaced apart from each other. | 2020-04-30 |
20200136519 | SECONDARY CONTROLLER APPLIED TO A SECONDARY SIDE OF A POWER CONVERTER AND OPERATION METHOD THEREOF - A secondary controller applied to a secondary side of a power converter includes a control signal generation circuit, a voltage detection signal generation circuit, and a gate control signal generation circuit. The control signal generation circuit generates a short-circuited control signal to a short winding switch after a gate control signal to make the short winding switch be turned on. When an output voltage of the power converter is less than a predetermined voltage, the voltage detection signal generation circuit generates a first detection signal to the control signal generation circuit. The control signal generation circuit further generates a gate pulse control signal according to the first detection signal. The gate control signal generation circuit generates a gate pulse signal according to the gate pulse control signal, wherein the gate pulse signal is used for making a primary side of the power converter be turned on. | 2020-04-30 |
20200136520 | TANDEM DC/DC CONVERTER FOR A VEHICLE BATTERY CHARGER - In at least one embodiment, a charging apparatus for a vehicle is provided. The apparatus includes a power converter having a primary stage, a first secondary stage, and a second secondary stage. The primary stage is configured to receive an incoming voltage to generate a first input voltage. The first secondary stage includes a first plurality of electrical components configured to generate a first portion of an output voltage. The second secondary stage is in series with the first secondary stage and includes a second plurality of electrical components configured to generate a second portion of the output voltage. Each of the first plurality of electrical components and the second plurality of electrical components is rated to a voltage rating that is less than a total sum of the first portion and the second portion of the output voltage. | 2020-04-30 |
20200136521 | HIGH FREQUENCY TIME-DIVISION MULTI-PHASE POWER CONVERTER - A high frequency time-division multi-phase power converter includes a power source, a switching circuit, a first resonant tank, a coreless transformer, a second resonant tank, an output rectifier circuit, an output load circuit and a control circuit. The switching circuit includes a first half bridge circuit and a second half bridge circuit connected in parallel. The first resonant tank includes a first resonant inductor, a first resonant capacitor and a first magnetizing inductor. The coreless transformer includes a primary side coil and a secondary side coil. The second resonant tank includes a second resonant capacitor and a second resonant inductor. The control circuit controls the switching circuit to be switched between multiple switching states, and ON states in a switching cycle of the first upper bridge switch, the first lower bridge switch, the second upper bridge switch, and the second lower bridge switch are mutually exclusive. | 2020-04-30 |
20200136522 | LOW INDUCTANCE BUS ASSEMBLY AND POWER CONVERTER APPARATUS INCLUDING THE SAME - An apparatus, such as a power converter, includes first, second and third core bus plates arranged in parallel. The apparatus also includes a first bus extension plate joined to the first core bus plate and extending therefrom at a first angle and a second bus extension plate joined to the second core bus plate and extending therefrom at a second angle. The apparatus further includes a third bus extension plated joined with the third core bus plate and disposed parallel to the first bus extension plate and a fourth bus extension plate joined with the third core bus plate and disposed parallel to the second bus extension plate. | 2020-04-30 |
20200136523 | Multilevel Converter Circuit and Method - A power conversion system including a first converter configured to convert an input voltage into a plurality of discrete voltages. A second converter configured to convert the plurality of discrete voltages into a plurality of modulated voltages. Each modulated voltage of the plurality of modulated voltages comprises two voltage levels equal, respectively, to two of the discrete voltages of the plurality of discrete voltages. A selection unit configured to alternatively output each modulated voltage of the plurality of modulated voltages across a pair of output terminals. | 2020-04-30 |
20200136524 | MULTI-WINDING SINGLE-STAGE MULTI-INPUT BOOST TYPE HIGH-FREQUENCY LINK'S INVERTER WITH SIMULTANEOUS/TIME-SHARING POWER SUPPLIES - A multi-winding single-stage multi-input boost type high-frequency link's inverter with simultaneous/time-sharing power supplies, having the circuit structure formed by connecting a plurality of mutually isolated high-frequency inverter circuits having an input filter and an energy storage inductor, a common output cycloconverter and filter circuit by a multi-input single-output high-frequency transformer. Each input end of the multi-input single-output high-frequency transformer is connected in one-to-one correspondence to the output end of each high-frequency inverter circuit. The output end of the multi-input single-output high-frequency transformer is connected to the input end of the output cycloconverter and filter circuit. The inverter has the following characteristics: multiple input sources are connected to a common ground or a non-common ground. The multiple input sources supply power to load in a simultaneous/time-sharing manner. The output and input high-frequency isolation is performed. The output cycloconverter and filter circuit is shared. | 2020-04-30 |
20200136525 | ACTUATOR WITH SEALABLE EDGE REGION - Actuators having reversible seals are described herein. The actuators can move from a first position to a second position and lock in the second position using a reversible seal. The device can include a soft hydraulic actuator having a fluid-impermeable membrane. The fluid-impermeable membrane can define a compartment, the compartment having a central region, an edge region extending from and fluidly connected with the central region, a reversible seal between the central region and the edge region, and a dielectric fluid. When actuated, the actuators can force fluid through the reversible seals and into the edge region. Once in the edge region, the reversible seals be actuated and controllably sealed to prevent return flow. | 2020-04-30 |
20200136526 | SOMERSAULTING MOTION OF SOFT BODIED STRUCTURE - The soft bodied structures and systems for controlling such devices are described herein. The soft bodied structures can, through a series of soft hydraulic actuators, move from a first position to a second position by a somersaulting motion. The system can include connecting to a first contact point of the surface using a surface attachment. The rigidity of the controllably resistive material can then be increased. The medial hydraulic actuators can be actuated to expand the exterior medial surface, creating a bend. The device can then attach to a second contact point using the surface attachment and the end portion actuator of the unattached end portion. Then, the surface attachment of the first attached end portion can detach. The medial hydraulic actuators and the controllably resistive material can then relax, followed by detaching the surface attachment of the second attached end portion. | 2020-04-30 |
20200136527 | MEMS Actuation Systems and Methods - A method of manufacturing a micro-electrical-mechanical system (MEMS) assembly includes mounting a micro-electrical-mechanical system (MEMS) actuator to a metal plate. An image sensor assembly is mounted to the micro-electrical-mechanical system (MEMS) actuator. The image sensor assembly is electrically coupled to the micro-electrical-mechanical system (MEMS) actuator, thus forming a micro-electrical-mechanical system (MEMS) subassembly. | 2020-04-30 |
20200136528 | VIBRATION WAVE MOTOR AND DRIVING DEVICE INCLUDING THE VIBRATION WAVE MOTOR - Provided is a vibration wave motor including: a vibrator; a friction member configured to be brought into frictional contact with the vibrator; a first holding member holding the vibrator; a second holding member holding the first holding member; and a third holding member holding the second holding member, wherein the vibrator and the friction member move relative to each other, and wherein one side of the second holding member is configured to connect to the first holding member or the third holding member at a position where the second holding member overlaps the rectangular shape portion in a direction of the relative movement, and another side of the second holding member is configured to connect to the first holding member or the third holding member at a position where the second holding member overlaps the rectangular shape portion in a direction perpendicular to the direction of the relative movement. | 2020-04-30 |
20200136529 | CONTACT BODY EASY TO VERIFY RESIN IMPREGNATION, MANUFACTURING METHOD THEREOF, AND VIBRATION ACTUATOR INCLUDING CONTACT BODY - A contact body that makes it possible to easily verify whether or not the resin has been properly impregnated in the pores. A metallic sintered body having a plurality of pores, as a main body, is in contact with a vibration element in a vibration actuator. The contact body includes a sliding portion that has a sliding surface in contact with the vibration element, and a non-sliding portion adjacent to the sliding portion and not in contact with the vibration element. The non-sliding portion is provided with a resin lump containing hard particles and resin, and the resin lump is formed to be lower in height in a vertical direction than the sliding surface. In the sliding portion, part of hard particles and resin is exposed on the sliding surface. | 2020-04-30 |
20200136530 | POWER GENERATION DEVICE AND ELECTRIC DEVICE INCORPORATING THE SAME - A power generation device includes a rotatable member arranged to rotate about a rotating axis in response to an application of force; and at least one power generation unit including at least one deformable member, the deformable member arranged to deform for generating electrical energy in response to the rotation of the rotatable member. The present invention also discloses a power generation device having an oscillatable member and an electric device incorporating the power generation device. | 2020-04-30 |
20200136531 | CONTROL METHOD FOR PIEZOELECTRIC DRIVE DEVICE, PIEZOELECTRIC DRIVE DEVICE, ROBOT, AND PRINTER - A control method for a piezoelectric drive device includes a piezoelectric vibrator having a vibrating portion and a distal end portion coupled to the vibrating portion, in which the distal end portion makes elliptic motion by a stretching vibration and a flexural vibration of the vibrating portion, a driven member driven by the elliptic motion of the distal end portion, and a drive signal generation circuit outputting a stretching vibration drive signal that generates the stretching vibration and a flexural vibration drive signal that generates the flexural vibration in the piezoelectric vibrator, and the method includes, when the driven member is stopped, superimposing and outputting a modulation signal for amplitude modification on the stretching vibration drive signal by the drive signal generation circuit. | 2020-04-30 |
20200136532 | PIEZOELECTRIC DRIVE DEVICE, ROBOT, AND PRINTER - A piezoelectric drive device has a first piezoelectric vibrator and a second piezoelectric vibrator each include a vibrating portion and a distal end portion in which the distal end portion make elliptic motion by stretching vibration and flexural vibration of the vibrating portion, a driven member driven by the elliptic motion of the distal end portion, a drive signal generation circuit that outputs stretching vibration drive signals to the first piezoelectric vibrator and the second piezoelectric vibrator, a first boosting circuit provided between the first piezoelectric vibrator and the drive signal generation circuit, a second boosting circuit provided between the second piezoelectric vibrator and the drive signal generation circuit, and a control circuit that controls boosting amounts of the stretching vibration drive signals. | 2020-04-30 |
20200136533 | AUTONOMOUS ELECTRIC GENERATOR FOR PRODUCTION OF RENEWABLE, CLEAN, PORTABLE, AND SUSTAINABLE ENERGY - Provided is an autonomous electric generator including: a stator includes generator coil for generating electricity and motor coil for generating electromagnetic force; a primary rotator includes a first permanent magnet; and a secondary rotator includes a second permanent magnet. The primary rotator and secondary rotator are rotated by the electromagnetic force generated by the motor coil. The autonomous electric generator is to generate renewable, portable and sustainable energy, using a self-sufficient electric generator that produces electricity from naturally abundant resources in a self-sufficient and sustainable method. The autonomous electric generator does not cause any harmful impacts to the environmental ecosystem or to the human health. | 2020-04-30 |
20200136534 | RAPID HILL HOLD AUTO-BALANCE APPARATUS AND METHOD FOR VEHICLES PROPELLED BY MAGNETIC SYNCHRONOUS MOTORS - An auto-balance hill-hold apparatus and method for arresting unintentional roll after coming to a stop on a hill or slope in vehicles powered by magnetic synchronous motors by automatically determining and rapidly applying the appropriate balancing counter-torque required to negate torque caused by the acceleration of gravity, and subsequently communicating the magnitude of the determined counter-torque to a speed controller so that it may seamlessly transition to an alternative and more efficient method of generating the equivalent balancing counter-torque and provide a smoother transition to operation mode. | 2020-04-30 |
20200136535 | METHOD AND APPARATUS FOR DRIVING MOTOR FOR ECO-FRIENDLY VEHICLE - An apparatus for driving a motor for an eco-friendly vehicle is provided. The apparatus includes a motor that has a rotor and a stator and a controller that operates the motor. The motor includes a plurality of stator coils and stator relays and the controller operates the stator relays based on an operation mode to adjust the number of turns of the stator coils. | 2020-04-30 |
20200136536 | METHOD FOR DETECTING MAGNETIC FIELD LOCATION IN ELECTRIC MOTOR - The present invention addresses the problem of providing a method for detecting magnetic field location which can realize low cost by using simple hardware and software and can detect a rotor location in units of excitation sections in 120°-energization without generating sensing noise at the time of initiation. As a solution, an MPU ( | 2020-04-30 |
20200136537 | MOTOR CONTROL APPARATUS AND MOTOR CONTROL METHOD - A motor control apparatus includes first and second detectors, and a switcher. The first detector detects a rotation position of a rotor using a signal from a resolver, and allows resolution of the rotation position to become lower in a region where a rotation speed of the rotor is higher than a first predetermined value, than in a region where the rotation speed is equal to or lower than the first predetermined value. The second detector estimates the rotation position using a current of the motor. The switcher switches between a first control and a second control in the region where the rotation speed is equal to or lower than the first predetermined value. The first control includes controlling the motor using the rotation position detected by the first detector. The second control includes controlling the motor using the rotation position estimated by the second detector. | 2020-04-30 |
20200136538 | MOTOR DRIVING APPARATUS - The present disclosure relates to a motor driving apparatus and, more specifically, to a motor driving apparatus which allows a maximum torque operation by correcting an angle error occurring during quick acceleration of a motor in a sensorless system. The motor driving apparatus comprises: an inverter for driving a motor, using an alternating current voltage; and a control unit for outputting a PWM signal for controlling an operation of a switching element included in the inverter. Here, the control unit determines an inductance parameter used to calculate a speed command value for determining a duty ratio of a PWM signal, and determines whether the motor is being accelerated, on the basis of a current change measured from the inverter. When the motor is being accelerated, the control unit enables a maximum torque operation by reducing an angle error of a rotor through a correction of reducing a previously-determined inductance parameter. | 2020-04-30 |
20200136539 | AUTOMATED SPEED RAMP CONTROL OF STEPPER MOTORS - Automated speed ramp control of stepper motor acceleration and deceleration using direct memory access (DMA) and core independent peripherals (CIPs) comprises a numerically controlled oscillator (NCO) controlled through direct memory access (DMA) transfers of prescale values used in combination with a clock oscillator to generate clock pulses that are a function of the clock oscillator frequency and the prescale values. This automates changing the frequency of the NCO, thereby controlling steeper motor speed, without requiring computer processing unit (CPU) overhead. The DMA module is enabled during a first number of clock pulses for step speed acceleration, disabled during a second number of clock pulses for normal operation at full step speed, and then re-enabled during a third number of clock pulses for step speed deceleration. A table in memory may store and provide a plurality of acceleration and deceleration prescale values for DMA transfers to the NCO. | 2020-04-30 |