27th week of 2020 patent applcation highlights part 75 |
Patent application number | Title | Published |
20200212743 | METHOD OF MANUFACTURING ROTOR - Disclosed are: preparing a rotor core having a plurality of magnet holes spaced near a circumferential edge of the rotor core; preparing a plurality of permanent magnet units each including a porous body and a magnet main body disposed in contact with each other; and inserting the permanent magnet units into the magnet holes and securing the permanent magnet units in the magnet holes. | 2020-07-02 |
20200212744 | ROTOR OF ROTATING ELECTRICAL MACHINE - A rotor of a rotating electrical machine includes: a rotor core with a plurality of magnet insertion holes; and a plurality of magnetic pole portions including permanent magnets inserted into the plurality of magnet insertion holes. A space portion is provided between a space portion forming surface of at least one of the outer diameter surface and the inner diameter surface of the permanent magnet and a wall surface of the magnet insertion hole facing the space portion forming surface. The space portion includes: a liquid medium storage region provided in a center in the circumferential direction, and liquid medium throttle regions provided at both end portions in the circumferential direction, and a distance between the permanent magnet and the magnet insertion hole in the liquid medium throttle region is shorter than a distance between the permanent magnet and the magnet insertion hole in the liquid medium storage region. | 2020-07-02 |
20200212745 | Vibration Motor - The invention provides a vibration motor includes a housing, a vibrator in the housing, a stator accommodated in the housing, and a number of elastic parts suspending the vibrator in the housing. One of the vibrator and the stator includes a magnetic circuit system, and the other includes a coil. The elastic part is in an H shape, each has a first fixation part fixedly connected with the magnetic circuit system, and two second fixation parts perpendicularly extending from two opposite ends of the first fixation part. In addition, an interval is formed between the two second fixation parts. The second fixation parts and the first fixation part are fixedly connected with the housing. Therefore, the amount of parts of the vibration motor is reduced, the structure of the elastic part is simple, the machining and forming are simplified, and the cost is lower. | 2020-07-02 |
20200212746 | PERMANENT MAGNET MOTOR DEVICE WITH COIL WINDINGS THAT HAVE VARIABLE NUMBERS OF TURNS AND ITS CONTROL METHOD - A kind of permanent magnet motor device with coil windings that have variable numbers of turns. The device may include windings and a power supply. The windings may include multiple coils. The power supply may connect to the coils through a switching device and cause these coils in various combinations of series connections or parallel connections to achieve a motor with increased power savings, torque, rotation speed, or power. | 2020-07-02 |
20200212747 | STATOR WINDING METHOD AND STATOR CORE WINDING - One or a plurality of embodiments of the present application provide a winding method for a stator winding. The method comprises positioning a first wire in a first direction according to a first rule, wherein the first rule is continuously positioning the first wire from a first layer in the first direction at a spacing of R slots in a layer number ascending manner until passing through an Mth layer; in the Mth layer, subjecting the first wire to pass a first same-layer transition and pass through a next slot having a spacing of R; positioning the first wire in a second direction according to a second rule, wherein the second rule comprises positioning the first wire at the spacing of R slots in a layer number descending manner until passing through the first layer; and in the first layer, subjecting the first wire to pass a second same-layer transition and pass through a next slot having the spacing of R, wherein the first wire advances in the same direction in the first same-layer transition and the second same-layer transition; and advancing the first wire by repeating following the first rule, passing the first same-layer transition, following the second rule, and passing the second same-layer transition until the first wire fills up the M layers of the stator without crossing itself, where M is a total number of layers of the first wire in stator slots. | 2020-07-02 |
20200212748 | STATOR FOR DRIVING MOTOR - The present disclosure provides a stator of a drive motor including: a stator coil having three phases (U, V, W) and four parallels (U1˜U4, V1˜V4, W1˜W4); a stator core having eight poles and 48 slots, where the stator coil is inserted into a slot configured by four pitches along a clockwise direction in the stator core; a first slot being set as a slot that U1 phase is inserted into; a sixth slot being set as a draw out slot of U phase; a ninth slot being set as a draw out slot of V phase; a twelfth slot being set as a draw out slot of W phase; U1, U3, V1, V4, W1 and W4 phases, a winding draw out direction of which is a clockwise direction; and U2, U4, V2, V3, W2 and W3 phases, a winding draw out direction of which is a counter-anticlockwise direction. | 2020-07-02 |
20200212749 | STATOR OF ELECTRIC ROTATING MACHINE, HAIRPIN OF STATOR OF ELECTRIC ROTATING MACHINE AND MANUFACTURING METHOD THEREOF - The present disclosure provides a stator of an electric rotating machine, a hairpin of a stator of an electric rotating machine, and a manufacturing method thereof. The stator for the electric rotating machine comprises a stator core, and a stator coil comprising hairpins. Each hairpin comprises a conductor, a film surrounding the conductor, a pair of insertion parts configured to be inserted into different slots, and a connection part connecting the insertion parts. The connection part comprises first and second bending parts bent with a predetermined radius of curvature such that the pair of insertion parts are insertable into different layers. The hairpins include first and second hairpins, each of the first and second hairpins configured to protrude from one end of the stator core by different protrusion lengths. Each of the first and second hairpins comprises a region configured to cross each other. | 2020-07-02 |
20200212750 | MOTOR STATOR - A motor stator has a core and first, second and third hairpin wires. The core has slots, an insertion side and an extension side. Each first hairpin wire has its first hairpin first leg inserted into a third layer of the slots and its first hairpin second leg inserted into a sixth layer of the slots. Each second hairpin wire has its second hairpin first leg inserted into a fourth layer of the slots and its second hairpin second leg inserted into a fifth layer of the slots. Each third hairpin wire has its third hairpin first leg inserted into a first layer of the slots and its third hairpin second leg inserted into a second layer of the slots. At the extension side, a plurality of immediately-adjacent hairpin legs are connected to form first and second winding sets. | 2020-07-02 |
20200212751 | MOTOR - The present invention provides A motor comprising a housing; a stator disposed inside the housing; a rotor disposed inside the stator; a shaft coupled to the rotor; and a teeth support part come in contact with the teeth of the stator, wherein the teeth support part includes a guide is disposed between the teeth adjacent to each other, wherein a width of the guide in the circumferential direction corresponding to the length between the end surfaces of the adjacent teeth, wherein an outer upper surface of the guide and inner bottom surfaces of the adjacent teeth form a shape of an arc. | 2020-07-02 |
20200212752 | ROTATING ELECTRICAL MACHINE - A rotating electrical machine includes a rotor; a stator having a core annularly arranged facing the outer peripheral surface of the rotor, a coil wound around the core and having a coil end formed protruding from an end surface in the axial direction of the core, and an insulator formed on the end surface in the axial direction of the core and insulating the core and the coil; a bus bar arranged on the outer peripheral side of the coil end of the stator; and a terminal block installed on the outer peripheral side of the bus bar for introducing an electric current from an external power source to the stator, and the insulator has a groove portion in which the bus bar is held, and a terminal block housing portion in which the terminal block is held. | 2020-07-02 |
20200212753 | MOTOR - In one aspect of a motor of the present invention, a housing has a stator housing portion and an inverter housing portion, and is a single member. A cover covers an opening on one side in an axial direction of a circumferential wall of a stator housing portion. A rotation detection unit detects the rotation of a rotor and is attached to a motor shaft on the one side in the axial direction of a stator. A speed-reduction device has a speed-reduction mechanism coupled to an end on the one side in the axial direction of the motor shaft and a casing in which the speed-reduction mechanism is housed. The rotation detection unit is covered by the casing from the one side in the axial direction. | 2020-07-02 |
20200212754 | ELECTRICAL MACHINE WITH COOLING CHANNEL - An electrical machine comprises a polymeric housing formed by a polymeric material and constructed to house components of the electrical machine, structurally support the electrical machine and react torque loads generated by the electrical machine; a stator overmolded into and partially encapsulated by the polymeric housing, the stator including a laminated stator core and a plurality of stator windings, the stator windings including a winding overhang extending from the laminated stator core; a rotor in magnetic communication with the stator; and a cooling channel disposed within the polymeric material forming the housing and encapsulated by the polymeric material and positioned adjacent to the laminated stator core, wherein the cooling channel is constructed to pass a fluid for cooling the electrical machine. | 2020-07-02 |
20200212755 | MOTOR - In one aspect of a motor of the present invention, an inverter housing portion is located on the radially outer side of a stator housing portion. A housing has a tubular circumferential wall surrounding the rotor and the stator on the radially outer side of the rotor and the stator, and is a single member. The circumferential wall has a first cooling flow path, and a partition wall that partitions the stator housing portion and the inverter housing portion. The first cooling flow path extends in the circumferential direction, and at least a part of the first cooling flow path is provided in the partition wall. As viewed along the predetermined direction, a portion of the first cooling flow path provided in the partition wall has a portion overlapping the inverter and a portion overlapping the capacitor. | 2020-07-02 |
20200212756 | INDUSTRIAL ELECTRICAL MACHINE SYSTEM AND ELECTRONICS MODULE - An industrial electrical machine system includes an industrial electrical machine including a first housing and a first plug-in electrical connector disposed on the first housing; and an electronics module including a second housing; a converter disposed in the second housing and constructed to convert an input electrical power to an output electrical power; a second plug-in electrical connector electrically coupled to the converter and constructed to sealingly engage and electrically couple to the first plug-in electrical connector and electrically couple the converter to the industrial electrical machine and supply the output electrical power to the industrial electrical machine from the converter, wherein the industrial electrical machine is a motor, a generator or a motor/generator. | 2020-07-02 |
20200212757 | ELECTRIC COMPRESSOR - An electric compressor includes a motor housing, an inverter, a cover, and a fastener. The inverter includes a board; an electronic component; a holder composed of an insulating material, the holder containing the electronic component and supporting the board; a bus bar integrated with the holder, and electrically connected to a circuit pattern and the motor housing; and a tubular member interposed between the cover and the bus bar, with the fastener inserted in the tubular member. The fastening force from the fastener causes the tubular member to press the bus bar toward the motor housing. | 2020-07-02 |
20200212758 | SHAFT STRUCTURE OF MOTOR - The embodiments of the present disclosure provide a shaft structure of a motor, comprising a housing, a stator disposed inside the housing, and a rotor rotatably disposed inside the stator. The stator may comprise a stator core and a coil wound around the stator core, and the rotor may comprise a rotor core and a rotational shaft coupled to the rotor core. The rotational shaft may comprise a plurality of adjusting portions formed on an outer circumferential surface of the rotational shaft to align a center of gravity of the rotor with a center of the rotational shaft. | 2020-07-02 |
20200212759 | DRIVING MECHANISM - A driving mechanism is provided. The driving mechanism connects with a frame and a driving wheel by two ends thereof. The driving mechanism includes a motor housing, a motor assembly and a driving controller. The motor housing supports the frame and defines an inner space. The motor assembly is detachably assembled with the motor housing and located in the inner space. The motor assembly drives the driving wheel. The driving controller is detachably assembled with the motor housing, located in the inner space, and electrically connected with the motor assembly. | 2020-07-02 |
20200212760 | MOTOR-DRIVEN COMPRESSOR - A compressor includes a housing, a stationary block, a drive shaft, a motor mechanism, a stationary scroll, and a movable scroll. The stationary block is fixed to the housing and is arranged between the motor mechanism and the movable scroll. The motor mechanism includes a stator and a rotor. The drive shaft is provided with a balance weight. The balance weight extends in the radial direction of the drive shaft and is arranged between the stationary block and the stator. The stator includes a stator core and a coil end. The balance weight covers a part of the coil end in the radial direction and the axial direction of the drive shaft. | 2020-07-02 |
20200212761 | ROTATING MACHINE - Example aspects of a rotating machine, a method for pre-loading a rotating machine, and a method for using a rotating machine are disclosed. The rotating machine can comprise a stator; a rotor, wherein one of the stator and the rotor comprises a mounting flange formed monolithically therewith; a bearing directly mounted to the mounting flange; and the other of the stator and the rotor directly mounted to the bearing. | 2020-07-02 |
20200212762 | METHOD FOR PRE-CONDITIONING A KINETIC ENERGY STORAGE SYSTEM - A flywheel energy storage system incorporates various embodiments in design and processing to achieve a very high ratio of energy stored per unit cost. The system uses a high-strength steel rotor rotating in a vacuum envelope. The rotor has a geometry that ensures high yield strength throughout its cross-section using various low-cost quenched and tempered alloy steels. Low-cost is also achieved by forging the rotor in a single piece with integral shafts. A high energy density is achieved with adequate safety margins through a pre-conditioning treatment. The bearing and suspension system utilizes an electromagnet that off-loads the rotor allowing for the use of low-cost, conventional rolling contact bearings over an operating lifetime of several years. | 2020-07-02 |
20200212763 | CONTROL DEVICE FOR NON-EXCITATION-ACTUATED ELECTROMAGNETIC BRAKE, MULTI-BRAKE SYSTEM, ROBOT, AND MEDICAL ROBOT SYSTEM - A control device controls non-excitation-actuated electromagnetic brake operation. The control device includes an electronic component having a characteristic that when an inter-terminal voltage of two electrodes is equal to or higher than a predetermined voltage, a resistance value is lower than when the voltage is lower than the voltage and a diode disposed such that a cathode is on a side having a higher potential than an anode. The coil in the non-excitation-actuated electromagnetic brake and the electronic component are connected in series to form a first series circuit, the first series circuit and the diode are connected in parallel, and the electronic component is connected in series with the coil provided in the non-excitation-actuated electromagnetic brake so as not to be conducted when the inter-terminal voltage is lower than the predetermined voltage, but to be conducted when the inter-terminal voltage becomes equal to or higher than the predetermined voltage. | 2020-07-02 |
20200212764 | POWER GENERATOR - The power generator includes: an alternator for generating electricity by driving an engine; an inverter case containing an inverter circuit of the alternator; a fuel tank for storing a fuel to be supplied to the engine; and a casing for housing at least the engine, the alternator and the inverter case, wherein the inverter case and the fuel tank are formed of a material having higher thermal conductivity than the casing, and the inverter case is disposed in contact with the fuel tank. | 2020-07-02 |
20200212765 | POWER GENERATOR - In the power generator, an alternator driven by an engine to generate power, an inverter for the alternator, a fan to cool the engine, and a shroud via which air blown by the fan is guided to a periphery of the engine are stored inside of a casing. A fan cover that covers the alternator and the fan is provided in an end portion of the shroud, a ventilating opening is formed in an end portion of the fan cover, and an inverter supporter in which the inverter is installed is provided in a circumferential edge portion of the ventilating opening. | 2020-07-02 |
20200212766 | HAPTIC ACTUATOR INCLUDING THERMALLY COUPLED HEAT SPREADING LAYER AND RELATED METHODS - A haptic actuator may include a housing that includes a ferromagnetic material having a first heat conductance, and a coil carried by the housing in a medial portion thereof and generating waste heat when electrically powered. The haptic actuator may also include a field member movable within the housing responsive to the coil. The field member may include at least one permanent magnet establishing a magnetic path with the housing. A heat spreading layer may be thermally coupled to the housing adjacent the coil. The heat spreading layer may have a second heat conductance greater than the first heat conductance to spread the waste heat from the coil to adjacent portions of the housing. | 2020-07-02 |
20200212767 | Electric Drive Device and Electric Power Steering Apparatus - Power conversion circuit unit defined by rotation shaft-side line facing toward rotation shaft of electric motor, control output terminal-side line facing toward coil input terminals of electric motor and side lines connecting both end portions of rotation shaft-side line and control output terminal-side line is packaged with synthetic resin. Three-phase control output terminals connected to the coil input terminals are formed at control output terminal-side line. Power switching elements forming upper and lower arms for each phase are arranged in a zigzag formation along control output terminal-side line with power switching elements being offset from a substantially middle between rotation shaft-side line and control output terminal-side line toward control output terminal-side line. With this, size of power conversion circuit unit can be reduced, and heat of power conversion circuit unit can be efficiently released to the outside. | 2020-07-02 |
20200212768 | ELECTRIC MOTOR WITH BUSBAR UNIT - An electric motor includes a rotor rotatable about a rotation axis, and a stator that externally surrounds the rotor and includes a stator core and coils wound on the stator core. The windings are defined by a winding wire including winding wire end portions that are electrically contacted at end surfaces thereof by busbars held at least partially in a busbar holder, and include a ground contact to connect the stator to a ground potential. The ground contact includes a first end region received in a longitudinal groove on an outside of the stator core. | 2020-07-02 |
20200212769 | REPAIR METHOD FOR BAR OR COIL OF ROTATING ELECTRICAL MACHINE - A bar or coil includes a conductor arranged in a rotating electrical machine and an insulating layer having a Predetermined insulation thickness disposed on a surface of the conductor. The repair method includes: extracting a part of the bar or coil as a repair target; removing the insulating layer in a part of the bar or coil as the repair target; disposing a first insulating layer in the part where the insulating layer is removed, the first insulating layer having an insulation thickness thinner than the predetermined insulation thickness; and disposing a second insulating layer on a surface of the first insulating layer to form an insulating layer after a repair where the first insulating layer and the second insulating layer are added, the insulating layer after the repair having a thickness of the predetermined insulation thickness. | 2020-07-02 |
20200212770 | MOLDED COIL BODY, METHOD FOR PRODUCING SAME, MOTOR, AND METHOD FOR ASSEMBLING STATOR - The invention provides a coil molding attached to a stator of a motor, the coil molding including a coil wound around each of teeth of the stator, and a bus bar connected to the coil and molded integrally with the coil. The invention also provides another coil molding attached to a stator of a motor, the coil molding including a set of coils wound respectively around a plurality of teeth of the stator, the set of coils being molded integrally with each other. | 2020-07-02 |
20200212771 | PRE-FITTING NEST AND METHOD FOR FORMING A CROWN FROM A PLURALITY OF U-SHAPED ELECTRICALLY CONDUCTIVE HAIRPINS IN ORDER TO THEN BE ABLE TO INSTALL THE CROWN IN A MACHINE ELEMENT OF AN ELECTRIC MACHINE - A pre-fitting nest and a method serve for forming a crown from a plurality of U-shaped electrically conductive hairpins to then be able to install the crown in a machine element of an electric machine, e.g., a stator. Here, an accommodating member has a plurality of grooves in which the legs of the hairpins are accommodated. The grooves are annularly disposed about a center and extend perpendicularly to the plane of the accommodating member. With respect to their size and geometry, they are configured such that in each case a first leg of a hairpin rotates within the groove thus to enable an unconstrained positioning of the second leg of the hairpin in another groove. One or several crowns formed from hairpins are provided for introduction into a machine element and inserted into the machine element. | 2020-07-02 |
20200212772 | METHOD FOR MANUFACTURING A ROTARY ELECTRIC MACHINE - A manufacturing device that is used in a manufacturing method for a rotary electric machine is equipped with an insertion roller having an outer circumferential surface configured to contact a coil lead line in such a manner that the coil lead line is inserted into accommodating grooves of an insulator, a roller support section that rotatably supports the insertion roller, and a bending unit that performs a bending process to bend the coil lead line by coming into contact with the coil lead line so as to form a terminal part. | 2020-07-02 |
20200212773 | PERMANENT MAGNET ELECTRICAL MACHINE FOR REDUCING DETENT FORCE - The present invention relates to a permanent magnet electrical machine, and more particularly, to a permanent magnet electrical machine for reducing a detent force, the machine being capable of reducing a detent force by arranging a plurality of movers having the same teeth at predetermined intervals. In addition, according to the present invention, the permanent magnet electrical machine comprising a stator and a plurality of movers configured to perform linear motion, curvilinear motion, or rotary motion with respect to the stator is provided. | 2020-07-02 |
20200212774 | Linear Vibration Motor - A linear vibration motor includes a housing with a first accommodation space, a vibration unit, an elastic part and a coil assembly fixed on the housing. The vibrating unit includes a support connected with the elastic part, and includes a top wall perpendicularly to a vibrating direction of the vibrating unit, a side wall bending and extending from a periphery of the top wall, a through hole penetrating the top wall, and two separation walls respectively bending and extending from the two opposite sides of the through hole. The top wall and the side wall enclose to form a second accommodation space which is divided by the two separation walls into a main accommodation space and two auxiliary accommodation spaces. The linear vibration motor further includes at least one weight block accommodated and fixed in the auxiliary accommodation spaces, and at least one magnet respectively fixed to the support. | 2020-07-02 |
20200212775 | Linear Vibration Motor - The present invention provides a linear vibration motor, including a base with an accommodating space, and a vibration unit located in the accommodating space. The vibration unit includes a weight, a containing groove, and a number of coil assemblies in the containing groove. The motor further includes a magnet at least partially accommodated in the containing groove and disposed opposite to the coil assembly, and an elastic piece for suspending the vibration unit. The coil assembly includes an iron core and a coil wound around the iron core. The magnet is magnetized along the vibrating direction, the coil assembly is magnetized along a direction perpendicular to the vibration direction, and the magnetic poles of the coil assembly adjacent to the magnet are the same and are disposed opposite to each other. By virtue of the configuration disclosed by the present invention, the vibration performance is improved. | 2020-07-02 |
20200212776 | Linear Vibration Motor - The present invention provides a linear vibration motor, which includes a base, a vibration unit, an elastic part and a coil assembly. The vibration unit has a weight, a pole plate and a magnet. The coil assembly includes an iron core and a coil fixed to the iron core. Further, the iron core includes an iron core body for being wound by the coil, and an iron core extension part extended and fixed from the opposite ends of the iron core body. The iron core extension part of the base includes a connecting part connected to the iron core body and a fixing part bent and extended by the connecting part and fixed to the base. A thickness of the connecting part is greater than a thickness of the fixing part. Compared with the related technology, the linear vibration motor has improved vibration performance. | 2020-07-02 |
20200212777 | Linear Vibration Motor - The present invention provides a linear vibration motor including a housing with a receiving space, a vibration unit placed in the receiving space, an elastic part suspending the vibration unit in the receiving space and a coil assembly fixed on the housing and driving the vibration of the vibration unit. The vibration unit includes a weight in which a pole plate is disposed for positioning a magnet. The pole plate includes a body part and a positioning part extending from the body part. The positioning part includes a first positioning arm and a second positioning arm arranged for sandwiching the magnet. Compared with the related technology, the linear vibration motor of the invention has the advantages of simpler assembly, higher assembly precision and higher vibration reliability. | 2020-07-02 |
20200212778 | Linear Vibration Motor - The present invention provides a linear vibration motor including a housing with a receiving space, a vibration unit placed in the receiving space, an elastic part suspending the vibration unit in the receiving space and a coil assembly fixed on the housing and driving the vibration of the vibration unit. The vibration unit includes a weight in which a pole plate is disposed for positioning a magnet. The pole plate includes a body part and a positioning protrusion extending from the body part. The magnet includes a positioning hole corresponding to the positioning protrusion. Compared with the related technology, the linear vibration motor of the invention has the advantages of simpler assembly, higher assembly precision and higher vibration reliability. | 2020-07-02 |
20200212779 | Linear Vibration Motor - The present invention provides a linear vibration motor including a housing with; a vibrator and a stator accommodated in the housing; and elastic support parts suspending the vibrator in the accommodation space. Each elastic support part includes a first installation part fixed to the housing, a second installation part fixed to the vibrator, a first extension part connecting with one end of the second installation part, a second extension part, and a third extension part fixedly connected with the first installation part. By virtue of the invention, the stress generated by the vibration of the vibrator is respectively borne by the two extension parts between the two fixation parts of the elastic support parts. The elastic support parts are more difficult to deform. Accordingly, the linear vibration motor has better reliability. | 2020-07-02 |
20200212780 | Linear Motor - The present invention provides a linear motor including: a housing with an accommodation space; a vibrator and a stator; and elastic parts suspending the vibrator in the accommodation space. The elastic part includes an outer elastic part, and a first and second extension parts, and an inner elastic part spaced from the outer elastic part, a third extension part and a fourth extension part which respectively bend and extend from both ends of the second body part. The first extension part and the third extension part are connected; the second extension part and the fourth extension part are connected; the first body part, the second extension part, the fourth extension part, the second body part and the third extension part are connected for forming a hollow structure. The first fixation part is fixed to the housing, and the second fixation part is fixed to the vibrator. | 2020-07-02 |
20200212781 | Linear Vibration Motor - An embodiment of the invention provides a linear vibration motor. The linear vibration motor includes a base, a vibration unit, an elastic piece and a coil assembly. The vibration unit includes a weight, a containing groove penetrating the weight, and two magnets arranged in the containing groove. The elastic piece is located on one side of the vibration unit and is connected with the vibration unit. The coil assembly has an iron core and a coil wound around the iron core. The two magnets are magnetized such that the magnetic poles of the two magnets are oppositely arranged. The magnetizing direction of the coil assembly is perpendicular to the vibration direction and is parallel to the connecting line of the two magnets. Compared with the related art, the linear vibration motor is improved in vibration performance and reliability. | 2020-07-02 |
20200212782 | Linear Vibration Motor - An embodiment of the invention provides a linear vibration motor. The linear vibration motor includes a base with a containing space, a vibration unit arranged in the containing space, an elastic piece suspending the vibration unit in the containing space, and a magnet assembly fixed to the base and driving the vibration unit to vibrate. The vibration unit includes a weight, a containing groove penetrating through the weight and at least one pair of coils which are oppositely fixed to the weight. The magnet assemblies has two magnets which are respectively fixed on two opposite sides of the base. The two magnets are at least partially located in the containing grooves, and are magnetized in the vibration direction. Compared with the related art, the linear vibration motor is improved in vibration performance and reliability. | 2020-07-02 |
20200212783 | Linear Vibration Motor - The present invention provides a linear vibration motor, which includes a shell with a receiving space and a vibrator and a stator both housed in the shell body. One of the vibrator and the stator includes a solenoid, the other of the vibrator and the stator includes a magnetic circuit structure having a magnetic conductive frame and four magnets surrounding the magnetic conductive frame. By virtue of the configuration of the invention, the magnetic field strength can be significantly enhanced. The magnetic conductive frame can not only be used for magnetic guiding and fixing the magnets, but also can be used for fixing the weight to simplify the assembly structure and improve the reliability. Further, the response speed of the linear vibration motor is fast, the acceleration is great and the frequency band is wide. | 2020-07-02 |
20200212784 | Linear Motor - The present invention provides a linear motor. The linear motor includes a housing with an accommodation space; a vibrator and a stator accommodated in the accommodation space; and elastic support parts supporting and suspending the vibrator in the accommodation space. The vibrator includes a weight with an accommodation room, and a pole plate accommodated in the accommodation room and fixed to the weight. The pole plate includes a number of first side walls fixed to the weight and oppositely arranged, and a number of flanges bending and extending towards the elastic support parts from one end of each side wall. The flanges are fixed to the weight. Such a linear motor has higher reliability. | 2020-07-02 |
20200212785 | Vibration Motor - An embodiment of the present invention provides a vibration motor. The vibration motor includes a vibrating component movable along a vibration direction; a fixation component including a housing with an s accommodation space; an elastic support part suspending the vibrating component in the accommodation space; and a number of limit blocks fixedly connected with the housing. Each of the limit blocks includes a horizontal part and a vertical part. The vertical part extends from the horizontal part towards the housing along the vibration direction. The vibration motor provided by the present invention can effectively solve the problem that the vibration motor loses function because of the collision between the vibrating component and the housing. | 2020-07-02 |
20200212786 | Linear Vibration Motor - An exemplary embodiment of the present invention provides a linear vibration motor including a base with an accommodation space a vibrating unit, an elastic part suspending the vibrating unit, and a coil assembly fixed to the base. The vibrating unit includes a weight block with a through hole, a pole plate accommodated in the through hole, and at least one magnet fixed at the pole plate. The pole plate includes first side walls and second side walls. The at least one magnet is fixed to the first side wall, and a thickness of the second side wall is greater than a thickness of the first side wall. The linear vibration motor partially enlarges the pole plate so as to improve the magnetic field intensity, and then the magnetic flux is increased correspondingly so as to make the vibrating performance of the linear vibration motor better. | 2020-07-02 |
20200212787 | TUBULAR LINEAR MOTOR - To achieve the foregoing object, a tubular linear motor of the present invention includes a core that has a tubular yoke and a plurality of teeth which are annular and provided at intervals in an axial direction on an outer periphery of the yoke; a winding mounted in a slot between the teeth; and a field magnet that is tubular, into which the core is movably inserted in the axial direction, and having N poles and S poles alternately arranged in the axial direction. An axial width W of a yoke-side inner peripheral edge of the teeth is larger than an axial width of an outer peripheral edge of the teeth. | 2020-07-02 |
20200212788 | SYSTEM FOR GENERATING ELECTRICAL ENERGY BY EFFICIENT MOVEMENT OF A SPECIALIZED INDUCTIVE MEDIUM - A system for generating electrical energy by efficient movement of a specialized inductive medium that fulfills a need for new sources of electricity. The system for generating electrical energy by efficient movement of a specialized inductive medium includes an evacuated tube serving as a cathode disposed on a pipe, the evacuated tube contains a plurality of emulsified copper, the emulsified copper serves as the specialized inductive medium. The overall system includes a gear pump that moves the emulsified copper at high speed through the pipe where it is influenced by the magnet and the electric current is induced in the high-speed emulsified copper. | 2020-07-02 |
20200212789 | Dynamically Induced and Reactive Magnetic Hysteresis Applications and Methods - A dynamically induced magnetic hysteresis apparatus is described which allows efficient adjustable power coupling without direct mechanical attachment or linking. Adjustment of spatial and penetration gaps are adjusted to vary the ratio of rotation. | 2020-07-02 |
20200212790 | GATE DRIVE ADAPTER - A gate drive adapter circuit includes an input circuit, an output circuit, and a charge pump circuit. The input circuit is configured to receive pulses suitable for controlling a silicon power transistor. The output circuit is coupled to the input circuit. The output circuit is configured to translate the pulses to voltages suitable for controlling a silicon-carbide power transistor. The charge pump circuit is coupled to the input circuit and to the output circuit. The charge pump circuit is configured to generate a negative voltage. The output circuit is configured to apply the negative voltage to translate the pulses. | 2020-07-02 |
20200212791 | Active Compensation Circuit and System - An active compensation circuit is disclosed. In an embodiment a circuit includes a first compensation stage and at least one other compensation stage, wherein each of the first compensation stage and the at least one other compensation stage includes a sensor configured to provide a sensor signal being representative of a current flowing in one or more phases, a controlled current sink configured to supply a compensation current as a function of the sensor signal and an active amplifier element configured to provide a frequency response of an open circuit voltage amplification and/or is to supply a maximal output current, wherein the frequency response differs from a frequency response of at least one other active amplifier and/or wherein the maximal output current differs from a maximal output current of at least one other active amplifier. | 2020-07-02 |
20200212792 | CONVERTER ARRANGEMENT HAVING A PHASE MODULE ARRESTER AND METHOD FOR SHORT-CIRCUIT PROTECTION THEREOF - A converter arrangement includes a converter phase extending between first and second DC voltage poles. The converter phase includes an AC voltage terminal, a first converter arm extending between the first DC voltage pole and the AC voltage terminal and a second converter arm extending between the AC voltage terminal and the second DC voltage pole. The first converter arm includes a first series circuit of two-pole switching modules and the second converter arm includes a second series circuit of two-pole switching modules. Each of the switching modules includes power semiconductor switches and an energy store. A phase module arrester in an arrester branch is parallel with the two series circuits of the switching modules. The phase module arrester is configured for overvoltage protection of the switching modules of the two series circuits. A method for short-circuit protection of the converter arrangement is also provided. | 2020-07-02 |
20200212793 | DRIVE SIGNAL GENERATING CIRCUIT AND POWER SUPPLY CIRCUIT - A drive signal generating circuit that generates a drive signal for turning on and off a transistor based on an output voltage and an inductor current flowing through an inductor, includes: a reference current output unit that outputs a reference current serving as a reference for the inductor current; a command value output unit that outputs a command value for increasing and decreasing the inductor current when the inductor current is smaller and greater than the reference current, respectively; and a drive signal output unit that outputs the drive signal based on the command value such that the output voltage achieves a target level, the reference current output unit configured to output the reference current based on the command value output from the command value output unit and a value corresponding to a first error between a level of the output voltage and the target level. | 2020-07-02 |
20200212794 | PROTECTION OF CHARGE PUMP CIRCUITS FROM HIGH INPUT VOLTAGES - A power converter and method using a flying capacitor, a first transistor, a second transistor, a third transistor, a fourth transistor, and a driver circuit are presented. The first transistor is coupled between an input terminal and a first terminal of the flying capacitor. The second transistor is coupled between the first terminal of the flying capacitor and an output terminal. The third transistor is coupled between the output terminal and a second terminal of the flying capacitor. The fourth transistor is coupled between the second terminal of the flying capacitor and a reference potential. The driver circuit is coupled between a high side power rail and a low side power rail. There is a regulation circuit to regulate a high side voltage of the high side power rail such that the regulated high side voltage is independent of an input voltage at the input terminal. | 2020-07-02 |
20200212795 | HYBRID CONVERTER FAMILY AND METHODS THEREOF - The present disclosure provides methods and circuits of a hybrid converter family that allows using a combination of a switched multiple capacitor network and a number of inductors in order to a power conversion from an input to an output that may require a large conversion ratio, high output current, low output voltage, and/or high input voltage. The disclosed circuits and methods can be applied to today's switching regulators and allow them to provide the same power conversion function with less number of power conversion stages, smaller passive components, and less number of active components, and therefore, reduce the implementation space to save cost as well as improve efficiency. Sample applications include, but are not limited to, point-of-load power converters for data centers, telecommunication systems and other high-performance electronic systems. | 2020-07-02 |
20200212796 | SWITCHING REGULATOR SYSTEM - A switching regulator system having a switching regulator configured to generate regulated voltage pulses at a switching output in response to a setpoint of an output voltage at a setpoint input and feedback of the output voltage at a feedback input is disclosed. A power inductor is coupled between the switching output and a filtered output, and a filter capacitor is coupled between the filtered output and a fixed voltage node. A transistor having a control input is coupled between the filtered output and the fixed voltage node. A transition comparator has a first comparator input coupled to the setpoint input, a second comparator input coupled to the feedback input, and a comparator output coupled to the control input, wherein the transition comparator is configured to monitor for a setpoint voltage dropping below a feedback voltage and in response turn on the transistor to discharge the filter capacitor. | 2020-07-02 |
20200212797 | Resonant Charge Pump Circuit - A resonant charge pump circuit includes a resonant circuit having a bucket capacitor and a bucket inductor connected in series, and a switching circuit connected to the resonant circuit. The switching circuit switches to a first state that enables current to flow from an input terminal into the resonant circuit to charge the bucket capacitor and the bucket inductor, and switches to a second state that enables current to flow from the resonant circuit to discharge the bucket capacitor and the bucket inductor to an output terminal. The resonant circuit controls current flow into and out from the resonant circuit when the switching circuit switches between the states. The resonant charge pump circuit also includes a timing circuit that controls when the switching circuit switches between the states. | 2020-07-02 |
20200212798 | Methods of Manufacturing Inductor Modules and Power Semiconductor Systems Having Inductor Modules - A method of manufacturing a power semiconductor system includes providing a power stage module having one or more power transistor dies attached to or embedded in a first printed circuit board and attaching an inductor module to the power stage module such that the inductor module is electrically connected to an output node of the power stage module. The inductor module includes a ferrite sheet embedded in a second printed circuit board and windings patterned into the second printed circuit board. Further methods of manufacturing power semiconductor systems and methods of manufacturing inductor modules are also described. | 2020-07-02 |
20200212799 | SYSTEMS, APPARATUS AND METHODS OF ZERO CURRENT DETECTION AND START-UP FOR DIRECT CURRENT (DC) TO DC CONVERTER CIRCUITS - A device includes a switch, a controller electrically coupled to the switch, an RC circuit, a diode and a zero current detection circuit. The controller is configured to provide a control signal to control the switch to charge and discharge an inductor between a zero current state and a peak current state to provide a light emitting diode (LED) drive current. The RC circuit includes at least a first resistive element, a second resistive element, and a capacitive element. The diode is electrically coupled in parallel with the RC circuit. The zero current detection circuit has a first input electrically coupled to the RC circuit, a second input electrically coupled to a threshold voltage, and an output electrically coupled to the controller. | 2020-07-02 |
20200212800 | DC-DC CONVERTER WITH A PULSE-SKIPPING MODE (PSM) TRANSITIONS CONTROLLER - A system includes an input voltage supply and advanced current mode (ACM) converter device coupled to the input voltage supply. The ACM converter device ( | 2020-07-02 |
20200212801 | Single Inductor Multiple Output Regulator with Hybrid Negative and Positive Rail Generation - DC-DC voltage regulators for converting an input voltage into one or more output voltages and methods for operating such voltage regulators are described. The voltage regulator may have a high side switching device coupled between the input port and a first intermediate node. The voltage regulator may have an inductive element having one port coupled to the first intermediate node and may have a capacitive element having two ports, coupled between the first intermediate node and a second intermediate node, with its one port coupled to the first intermediate node. The voltage regulator may have a charging switching device coupled between the other port of the capacitive element and a predetermined voltage level, for charging the capacitive element when the high side switching device and the charging switching device are both in an ON state. | 2020-07-02 |
20200212802 | Power Management System Utilizing Bypass Device - A power management system includes a bypass device, a main boost converter and a linear regulator. The bypass device is coupled to a node, when a main input voltage exceeds a threshold voltage, the bypass device is used to output the main input voltage to the node, and when the main input voltage is less than the threshold voltage, the bypass device is disabled. The main boost converter is coupled to the node, when the main input voltage is less than the threshold voltage, the main boost converter is used to up-convert the main input voltage to the threshold voltage to output the threshold voltage to the node, and when the main input voltage exceeds than the threshold voltage, the main boost converter is disabled. The linear regulator is coupled to the node for down-converting the voltage at the node to provide a first voltage to a microprocessor. | 2020-07-02 |
20200212803 | CIRCUIT AND METHOD FOR DAMPING SUPPLY-VOLTAGE-INDUCED OSCILLATIONS IN THE INPUT CIRCUIT OF A DC-TO-DC CONVERTER - A circuit having a DC-to-DC converter and an input circuit connected on the line side of the DC-to-DC converter, having a first terminal and a second terminal for connection to a power supply and a third terminal and a fourth terminal for connection to the DC-to-DC converter. Between the first and third terminals, the input circle has a semiconductor element, wherein a first component terminal of the semiconductor element is connected via at least a first capacitor and a second capacitor to a second component terminal of the semiconductor element, wherein a resistance of the semiconductor element is controllable by a voltage between the first component terminal and the second component terminal. | 2020-07-02 |
20200212804 | POWER TRANSISTOR WITH DISTRIBUTED GATE - An electronic circuit is disclosed. The electronic circuit includes a distributed power switch. In some embodiments, the electronic circuit also includes one or more of a distributed gate driver, a distributed gate pulldown device, a distributed diode, and a low resistance gate and/or source connection structure. An electronic component comprising the circuit, and methods of manufacturing the circuit are also disclosed. | 2020-07-02 |
20200212805 | FIXED FREQUENCY BUCK-BOOST POWER CONVERTER CONTROL - The present disclosure provides for a processing element configured to couple to a first ramp generator and a second ramp generator and control the first ramp generator while a power converter is operating in a buck-boost mode of operation to generate a first ramp signal beginning at a first value and increasing to a second value during a first clock cycle and generate the first ramp signal beginning at the first value and increasing to a third value during a second clock cycle following the first clock cycle and control the second ramp generator while the power converter is operating in the buck-boost mode of operation to generate a second ramp signal beginning at a fourth value and decreasing to a fifth value during the first clock cycle and generate the second ramp signal beginning at the fourth value and decreasing to a sixth value during the second clock cycle. | 2020-07-02 |
20200212806 | Balanced Capacitor Power Converter - A power device comprising at least two capacitors in series to each other and in parallel to a DC power source. The power device may comprises a first converter that comprises a controller configured to balance a voltage of the at least two capacitors. The power device may comprises a second converter connected to the at least two capacitors. The second converter may comprise at least three input conductors, each connected to a terminal of the at least two capacitors. The second converter may comprise at least two output conductors. The second converter my comprise a switching circuit between the at least three input conductors and at least two output conductors. The second converter may comprise a controller configured to operate the switching circuit. The second converter may passively preserve the voltage balance between the at least two capacitors. | 2020-07-02 |
20200212807 | Multi-Output Hybrid Converter and Method Thereof - The present disclosure provides methods and circuits of multi-output hybrid voltage regulators that generate multiple lower level DC voltages lower than the magnitude of an input voltage provided to an input node of the regulator. The disclosed methods and circuits can be applied to today's Large conversion ratio DC-DC converters that allow them to support same power conversion functionality for multiple output voltages with one core switched capacitor network sharing passive components and switches with less voltage ratings, and therefore, reduce the implementation space to save cost as well as improve efficiency. Sample applications include, but are not limited to, PoL converters for data centers and telecommunication systems with better efficiency and compactness for higher conversion ratio. | 2020-07-02 |
20200212808 | SIMPLE STABILIZATION OF HALF-BRIDGE CONVERTER OVER ITS OPERATING TEMPERATURES - A half bridge DC-DC converter device includes a primary circuit and a secondary circuit, which include separate windings that are disposed around a magnetic core. The first circuit includes two switches and a drive circuit to turn the two switches on and off in an alternating fashion. The primary circuit further includes two thermal regulating components to regulate the current at the base of the two switches over a range of operating temperatures. The regulation of base current over a range of different operating temperatures results in the half bridge converter device being efficient and maintaining a stable switching frequency over the operational temperature range. | 2020-07-02 |
20200212809 | POWER CONVERSION USING DUAL SWITCH WITH PARALLEL TRANSISTORS HAVING DIFFERENT BLOCKING VOLTAGES - A power converter includes a first switch with a first transistor having a first blocking voltage in parallel with a second transistor having a second blocking voltage that is higher than the first blocking voltage. The power converter also includes a second switch. The power converter also includes a controller coupled to the first and second switches and configured to provide switch control signals. The power converter also includes a sequencer coupled to the first and second transistors and configured to generate offset transition signals for the first and second transistors based on a switch control signal provided by the controller. | 2020-07-02 |
20200212810 | IMAGE DISPLAY APPARATUS - Disclosed is an image display apparatus including: a display; and a power supply configured to supply power to the display; wherein the power supply comprises a converter including at least one switching element and configured to output direct-current (DC) power by converting a level of input power based on a switching operation of the at least one switching element, and wherein, a first mode where the at least one switching element performs a switching operation continuously or a second mode where the at least one switching element stops the switching operation are performed according to a load at an output terminal of the converter. Accordingly, power consumption required to display an image may be reduced. | 2020-07-02 |
20200212811 | SYSTEMS AND METHODS FOR VOLTAGE COMPENSATION BASED ON LOAD CONDITIONS IN POWER CONVERTERS - Systems and methods for voltage compensation based on load conditions in power converters. For example, a system controller for regulating a power converter includes a first controller terminal; a second controller terminal; and a compensation current generator. The compensation current generator is configured to receive an input signal through the first controller terminal. The input signal indicates a first current flowing through a primary winding of a power converter. The compensation current generator is configured to receive a demagnetization signal related to a demagnetization period of the power converter and associated with an auxiliary winding of the power converter. The compensation current generator is configured to generate a compensation current based at least in part on the input signal and the demagnetization signal. The compensation current generator is connected to a resistor. The resistor is configured to generate a compensation voltage based at least in part on the compensation current. | 2020-07-02 |
20200212812 | METHOD FOR CONTROLLING A SWITCHED ELECTRONIC CIRCUIT - To this end, the invention relates to a method for controlling a switched electronic circuit connecting an electrical voltage source u to a load R and forming a system having an output y and a plurality of operating modes i, at least some of which thus can be activated by following a switching rule o. According to the invention, the following steps are provided:—measuring state variables x of the system having equilibrium values x | 2020-07-02 |
20200212813 | CONTROL CIRCUIT HAVING POWER LIMIT FOR AN AC-DC CONVERTER AND INTEGRATED CIRCUITS THEREOF - A control circuit having power limit for controlling an AC-DC voltage converter. The control circuit includes a first sensing circuit having an auxiliary winding used to sense a voltage on an inductive element of the converter to generate a first sensing signal, a second sensing circuit used to sense the current flowing through the inductive element to provide a second sensing signal, and a power limit circuit. The power limit circuit generates a power indication signal indicative of the input power of the converter based on the first sensing signal and the second sensing signal. When the power indication signal is larger than a power threshold, a controllable switch of the converter is turned off. | 2020-07-02 |
20200212814 | CONTROLLER FOR A SWITCHED MODE POWER SUPPLY - A controller for a secondary side of a switched mode power supply. A thermistor and an LED of an optocoupler are connected in parallel with each other between a voltage-supply-pin and a STOP pin of the controller. A reference-source provides a reference-signal between the STOP pin and the voltage-supply-pin. The STOP pin receives a temperature-measurement-signal from the thermistor, wherein the temperature-measurement-signal is representative of the resistance of the thermistor. The controller also includes an OTP-comparator that compares: (i) the temperature-measurement-signal; with (ii) a threshold-level, and provides an OTP-signal that is representative of whether or not the temperature-measurement-signal at the STOP pin crosses the threshold-level; and a switchable-current-source that selectively provides a bias-current to the STOP pin based on the OTP-signal, wherein the bias-current causes the LED to emit a light-signal that is representative of a fault to an associated photo-detector. | 2020-07-02 |
20200212815 | POWER CONVERSION DEVICE - In a power conversion device, a main direct-current/direct-current (DC/DC) converter includes a first three-phase circuit capable of receiving and outputting a three-phase alternating current, a second three-phase circuit capable of receiving and outputting a three-phase alternating current, and an isolation transformer. A sub-DC/DC converter branches from the isolation transformer, and transforms a voltage of power supplied through the first three-phase circuit or the second three-phase circuit. The isolation transformer is provided between the first three-phase circuit and the second three-phase circuit, and transforms the voltage of the power supplied through the first three-phase circuit or the second three-phase circuit. The isolation transformer includes three coil units. The coil unit includes primary winding, main secondary winding, and sub secondary winding. The coil units are provided in the three phases, at least one for each phase. | 2020-07-02 |
20200212816 | ON-BOARD CHARGING/DISCHARGING SYSTEM AND CONTROL METHOD THEREOF - An on-board charging/discharging system includes a bidirectional converter and a low-voltage converter. When the high-voltage battery is charged or discharged by the bidirectional converter, the bidirectional converter is operated in a variable-frequency mode and the low-voltage converter is also operated in the variable-frequency mode. The on/off states of different switches are controlled according to the output gain of the bidirectional converter, and thus the on-board charging/discharging system has optimized volume and reduced cost. Moreover, the soft switching is achieved when the output gain is lower than 1, greater than 1 or equal to 1. Consequently, the efficiency of the on-board charging/discharging system is enhanced. Moreover, while the low-voltage converter is operated in a fixed-frequency mode, the first bridge of the bidirectional converter is correspondingly controlled. Consequently, the voltage of the bus capacitor is within a reasonable range. | 2020-07-02 |
20200212817 | ON-BOARD CHARGING/DISCHARGING SYSTEM - An on-board charging/discharging system includes a bidirectional converter and a low-voltage DC/DC converter. The bidirectional converter is electrically connected between an external device and a high-voltage battery. The bidirectional converter includes a power factor correction circuit, a bus capacitor and a bidirectional DC/DC conversion circuit. A first terminal of the power factor correction circuit is electrically connected with the external device. The bus capacitor is electrically connected with a second terminal of the power factor correction circuit. The bidirectional DC/DC conversion circuit is electrically connected between the bus capacitor and the high-voltage battery. The low-voltage DC/DC converter is electrically connected between the bus capacitor and a low-voltage battery. The low-voltage DC/DC converter includes at least one main switch. When the low-voltage DC/DC converter is enabled, a bus voltage of the bus capacitor is converted into a regulated voltage to power the low-voltage battery. | 2020-07-02 |
20200212818 | DRIVING DEVICE, CONTROL METHOD, AND STORAGE MEDIUM - A driving device is provided with an output unit, an input unit, a rectifier circuit, a switching circuit and a controller. The input unit inputs an AC in put. The rectifier circuit has a smoothing capacitor and converts the AC input into a rectified output. The switching circuit switches between an ON-state in which input impedance is low and an OFF-state in which input impedance is higher than that in the ON-state. The controller sets a start timing such that, when controlling the switching circuit to switch between the ON-state and the OFF-state, at least a portion of a period, in which the start timing of a power supply period becomes a second timing, is included in a period from a time when an input current inputted to the smoothing capacitor is generated to a time when the voltage of the smoothing capacitor reaches a maximum value. | 2020-07-02 |
20200212819 | POWER SUPPLY DEVICE - A main circuit power source and a control power source of a motor drive device are backed up. A first backup capacitor is inserted between a rectifier and a control power source output terminal that supplies power to a control circuit of a driver. | 2020-07-02 |
20200212820 | SWITCHING DEVICE - A switching device according to the present invention is a switching device for switching a load by on-off control of voltage, and includes an SiC semiconductor layer where a current path is formed by on-control of the voltage, a first electrode arranged to be in contact with the SiC semiconductor layer, and a second electrode arranged to be in contact with the SiC semiconductor layer for conducting with the first electrode due to the formation of the current path, while the first electrode has a variable resistance portion made of a material whose resistance value increases under a prescribed high-temperature condition for limiting current density of overcurrent to not more than a prescribed value when the overcurrent flows to the current path. | 2020-07-02 |
20200212821 | MULTILEVEL POWER CONVERTER - In a multilevel power converter ( | 2020-07-02 |
20200212822 | MULTI-LEVEL INTERTER CONTROL DEVICE AND CONTROL METHOD - The invention provides a multi-level inverter control device that is capable of reducing loss of a switching element of a maximum current phase that occurs in an extremely low speed region or at zero frequency. The control device has a maximum current phase selector | 2020-07-02 |
20200212823 | VIRTUAL SYNCHRONOUS GENERATOR SYSTEM AND METHOD WITH VIRTUAL INERTIA CONTROL - A virtual synchronous generator device disclosed. The device includes an inverter and inverter controller having a power control portion, a power reserve portion, a power point tracking control portion, and a virtual inertia control portion. The power reserve portion determines an amount of power to be reserved and sends a signal, indicative of the determined amount of power to the power point tracking controller. The power point tracking controller determines a power point that is less than a MPP, and provides a signal to the power control portion indicative of the determined power point. The inertia control portion determines a virtual inertia and provides a signal indicative of the virtual inertia to the power control portion. The power control portion provides a power control signal to the inverter based on the power point tracking signal and the inertia command signal. | 2020-07-02 |
20200212824 | POWER CONVERSION DEVICE AND INVERTER CIRCUIT - The power conversion device includes an inverter circuit in which one or a plurality of current limitation circuits that limit an electric current flowing in each of legs are provided and a control unit that controls, when a target voltage or a target current of the inverter circuit is outside a predetermined range, the current limitation circuits such that the electric current flowing in each of the legs is not limited and alternately performs the ON/OFF control of the two switching elements of each of the legs with a dead time in between and controls, when the target voltage or the target current is within the predetermined range, the current limitation circuits such that the electric current flowing in each of the legs is limited and alternately performs the ON/OFF control the two switching elements of each of the legs of the inverter circuit without the dead time in between. | 2020-07-02 |
20200212825 | CONTROL PROCESSING METHOD FOR INVERTER DEVICE HAVING H5 TOPOLOGICAL STRUCTURE - The present disclosure discloses a control processing method for an inverter device having an H5 topological structure. The control processing method includes: when a power grid supplies power normally, using a unipolar H5 PWM modulation mode to enable the inverter device to work in a grid-connected power generation mode; when the power grid supplies power abnormally or the power grid is in outage for a short time, using a unipolar H5 PWM constant-voltage modulation mode to enable the inverter device to work in an off-grid power generation mode; and when the power grid is in outage for a long time, using an H5-1 PWM constant-voltage modulation mode to enable the inverter device to work in an emergency SPS power generation mode. | 2020-07-02 |
20200212826 | MEMS DEVICE WITH MOVABLE STAGE - A MEMS device includes a substrate, at least one anchor disposed on the substrate, a movable stage, a sensing chip disposed on the movable stage, and at least one elastic member connected with the movable stage and the anchor. The movable stage includes at least one electrode and at least one conductive connecting layer. The sensing chip includes at least one electrical interconnection connected with the conductive connecting layer. The elastic member includes at least one first electrical channel, a second electrical channel and an electrical insulation layer disposed between the first electrical channel and the second electrical channel. The first electrical channel is electrically connected with the electrical interconnection, and the second electrical channel is electrically connected with the electrode. | 2020-07-02 |
20200212827 | AXIAL FLUX MOTOR - The present disclosure relates to an axial flux motor comprising a stator and a rotor. The stator comprises a first motor coil, a second motor coil, a first hall sensor, and a second hall sensor, and the rotor comprises a rotor platform member, an actuator magnet array arranged in an alternating axial polarity arrangement, a trigger magnet array, and a rotating magnetic return path member. | 2020-07-02 |
20200212828 | DETERMINATION OF AN INTERRUPTED MOTOR PHASE OF AN ELECTRIC MOTOR - A method for determining an interrupted motor phase of an electric motor having at least three windings by means of a control unit is disclosed, wherein voltages induced in the windings are determined on outer conductors of the electric motor by means of at least one measuring unit, wherein the measuring unit is connected to at least one outer conductor of the electric motor via at least one resistor, the induced voltages of the outer conductors of the electric motor are compared with one another, and an interrupted motor phase is registered if the induced voltage differs or if a frequency of the induced voltage differs. A control unit, a computer program and a machine-readable storage medium are also disclosed. | 2020-07-02 |
20200212829 | CONTROL DEVICE AND CONTROL METHOD FOR SYNCHRONOUS ELECTRIC MOTOR - A control device | 2020-07-02 |
20200212830 | Electric Motor Power Control Circuitry - Enhanced motor power control circuitry is presented herein. In one implementation, a circuit includes power transistor elements in a half-bridge arrangement configured to selectively switch current for a phase of a motor according to control signals applied to corresponding gate terminals. The circuit also includes control circuitry configured to produce the control signals to achieve target states among the power transistor elements. The control signals have ramp rates determined based at least on polarities of the current through the power transistor elements during inactive states. | 2020-07-02 |
20200212831 | MOTOR CONTROL DEVICE - A motor control device includes a motor control unit that controls electric power to be supplied to a motor, a deriving unit that derives a determination ratio of electric power to be supplied to the motor based on a detection result of transient characteristics of terminal output of the motor obtained under a predetermined condition after electric power supply from the motor control unit to the motor is shut off, and an adjusting unit that adjusts electric power to be supplied to the motor based on the determination ratio. | 2020-07-02 |
20200212832 | METHOD OF GENERATING MOTOR DRIVING SIGNAL, ELECTRONIC DEVICE AND STORAGE MEDIUM - A method of generating motor driving signal includes: obtaining acceleration segment signal for driving motor to start vibrating, constant segment signal for achieving low-frequency vibration tactile effect of the motor, and attenuating segment signal for decreasing vibration quantity of the motor in low frequency manner, frequency of constant segment signal and of attenuating segment signal being smaller than frequency of acceleration segment signal; splicing the acceleration segment signal with the constant segment signal, and reserving idle period with no signal output therebetween to obtain first motor driving signal; adjusting parameter of constant segment signal of first motor driving signal according to vibration feeling requirement, and splicing attenuating segment signal after the adjusted first motor driving signal to obtain second motor driving signal; and adjusting parameter of attenuating segment signal of second motor driving signal, and determining second motor driving signal with highest braking efficiency as final motor driving signal. | 2020-07-02 |
20200212833 | AIR CONDITIONER - An air conditioner includes a compressor to compress a refrigerant used in a refrigeration cycle, a converter to generate DC voltage, an inverter to generate three-phase AC voltage from the DC voltage, a motor to generate driving force to drive the compressor by using a plurality of coils to which the three-phase AC voltage is applied, a connection switching unit to switch connection states of the plurality of coils, and an outdoor control device to control the connection switching unit. The outdoor control device restricts the switching of the connection states when a switching count of the connection states exceeds a count threshold value. | 2020-07-02 |
20200212834 | BOOSTED CONVERTER FOR PULSED ELECTRIC MACHINE CONTROL - A boost circuit is arranged to reduce rise and fall times of pulsed power used for pulsed control operation of electric machines. Magnetic energy present in the electric machine at the end of a pulse is extracted by the boost circuit to reduce the pulse fall time. The energy is stored by the boost circuit and then applied at the beginning of a subsequent pulse to reduce the rise time. By reducing rise and fall times compared to not using such a boost circuit, machine efficiency is improved. | 2020-07-02 |
20200212835 | MOTOR CONTROL DEVICE - Provided is a motor control device that can detect an abnormality of a motor at an early stage. A motor control device includes: a control unit that calculates a voltage command value based on an input current command value and controls drive of the motor by using the calculated voltage command value; a virtual motor unit that simulates the value of a current flowing through the motor, based on the voltage command value calculated by the control unit and a plurality of parameters related to specifications of the motor; and a determination unit that determines whether or not the motor is in an abnormal state by comparing the current command value input to the control unit and the current value simulated by the virtual motor unit. | 2020-07-02 |
20200212836 | INTELLIGENT POWER MODULE AND CONTROLLER FOR AIR CONDITIONER - An intelligent power module and a controller for an air conditioner are provided. For the intelligent power module, an adjust circuit is additionally provided between a respective drive circuit and a respective IGBT transistor. The adjust circuit detects a change in the voltage of a low voltage power supply of the intelligent power module in real time, and disables the output of the module when the voltage is detected to be too low due to fluctuation of the low voltage power supply. This operation releases the charge accumulated in the IGBT transistor, when energy storage of a drive motor causes charge accumulation of the IGBT transistor. The adjust circuit can continue releasing the charge when the low voltage power supply is restored to normal, to prevent the operating reliability of the module from being affected by the impact of the charge on internal circuits of the module. | 2020-07-02 |
20200212837 | ELECTRIC WORKING MACHINE - An electric working machine in one aspect of the present disclosure includes two or more circuits and a control circuit. The control circuit executes two or more diagnoses one by one in order. The diagnoses at least include a first diagnosis and a second diagnosis. The first diagnosis diagnoses a first circuit. The second diagnosis diagnoses a second circuit. The control circuit executes the first diagnosis or the second diagnosis at a first diagnosis timing. The control circuit executes the first diagnosis or the second diagnosis at a second diagnosis timing. The second diagnosis timing follows the first diagnosis timing. | 2020-07-02 |
20200212838 | ELECTRIC WORKING MACHINE - An electric working machine in one aspect of the present disclosure includes a motor, an information output circuit, a control circuit, and a drive stop circuit. The information output circuit outputs state information that indicates a state of the electric working machine. The control circuit executes a motor control process in accordance with a computer program. The drive stop circuit executes a motor stop operation. The motor stop operation includes disabling a permission to drive the motor by the control circuit to stop the motor in response to the state information indicating that the motor should be stopped. The motor stop operation is implemented by hardware. | 2020-07-02 |
20200212839 | DEVICE PROTECTION APPARATUS AND DEVICE PROTECTION METHOD - A device protection apparatus comprising a first sensor for detecting temperature of a refrigerant used for cooling a device including a heat-generation part, a second sensor for detecting temperature of the device, and a controller | 2020-07-02 |
20200212840 | NON-THERMAL CANDOLUMINESCENCE FOR GENERATING ELECTRICITY - Methods and systems convert combustion products to electricity, by efficiently coupling between photovoltaic cells with photons. The photons are emitted from a burning process of a photoluminescence material, the burning process including the chemical reaction of combustion. | 2020-07-02 |
20200212841 | AN IMPROVED CONCENTRATED SOLAR POWER APPARATUS ENABLED BY FRESNEL LENS TUNNEL - A Concentrated Solar Power (CSP) apparatus to capture Direct Normal Irradiance (DNI) in form of thermal energy and to store the thermal energy in the form of a heat, in a plurality of Thermal Storage Material, to be used as a heat source is described, the apparatus comprising at least one Fresnel Lens Tunnel | 2020-07-02 |
20200212842 | METHOD FOR TESTING COMPATIBILITY - A method for testing compatibility between the energy needs of an electrically autonomous home-automation device and a predetermined location for a photovoltaic module comprising a step (Etp | 2020-07-02 |