24th week of 2020 patent applcation highlights part 76 |
Patent application number | Title | Published |
20200185979 | DEVICE FOR TRANSFERRING AND RECEIVING WIRELESS POWER AND METHOD FOR ADJUSTING POWER THEREOF - Disclosed is an electronic device. A wireless power transferring device includes a first interface comprising interface circuitry, a conversion circuit, a coil, and a control circuit. The control circuit is configured to control the device to communicate with the power supply device to identify maximum supply power of the power supply device and set maximum transfer power to the maximum supply power or less based on the power supply device being connected to the first interface, to generate the transfer power based on power supplied from the power supply device using the conversion circuit, to transfer the generated transfer power to a wireless power receiving device using the coil, to determine whether the request is for power adjustment exceeding the maximum transfer power based on receiving a request for power adjustment from the wireless power receiving device, to adjust the transfer power using the conversion circuit in response to the request based on the request not being for power adjustment exceeding the maximum transfer power, and to ignore the request to adjust the transfer power based on the request for power adjustment exceeding the maximum transfer power. | 2020-06-11 |
20200185980 | METHOD AND DEVICE FOR IMPROVING EFFICIENCY OF ELECTROMAGNETIC TRANSIENTS PROGRAM PHASE DOMAIN SYNCHRONOUS MACHINE MODEL - The present disclosure provides a method for improving the computational efficiency of an electromagnetic transients program (EMTP-type) phase domain synchronous machine model. The method comprises: acquiring a traditional phase domain synchronous machine model; acquiring matrix relations between mutual inductance matrices of stator windings and rotor windings according to a trigonometric transformation equation; substituting the matrix relations into the original expression of R | 2020-06-11 |
20200185981 | ELECTRIC MOTOR STATOR AND METHODS OF MANUFACTURE OF SAME - Stators of electric motors and methods for manufacturing same are described. The stator of the electric motor can comprise a coil assembly, which is made of one or more paralleled inductance coils of a cylindrical type of winding, and a cylindrical magnetic circuit with the poles, which are located at the upper and lower ends of the coil assembly and are performed by means of folding towards each other in order to ensure alternation of their polarity. | 2020-06-11 |
20200185982 | STATOR HAVING SKEWED MOUNTING EARS - A stator for an electromagnetic machine includes a first lamination stack defining a first cavity therein and having a central longitudinal axis. The first lamination stack includes a first plurality of mounting ears disposed opposite the first cavity and each spaced apart from one another about the central longitudinal axis. The stator further includes a second lamination stack abutting the first lamination stack and defining a second cavity therein aligned with the first cavity along the central longitudinal axis. The second lamination stack includes a second plurality of mounting ears disposed opposite the second cavity and each spaced apart from the first plurality of mounting ears and from one another about the central longitudinal axis. An electromagnetic machine including the stator and a device including the electromagnetic machine are also described. | 2020-06-11 |
20200185983 | PERMANENT MAGNET MACHINE - A permanent magnet machine includes a machine housing and a stator. The machine housing has an inner surface. The stator is disposed within the machine housing. The stator has a stator core having an exterior surface. At least one of the inner surface and the exterior surface defines a discontinuous region that is arranged to minimize points of contact between the inner surface and the exterior surface. | 2020-06-11 |
20200185984 | STATOR ELEMENT, STATOR ASSEMBLY, MOTOR, AND ELECTROMECHANICAL DEVICE - Embodiments of this application provide a stator element, a stator assembly, a motor, and an electromechanical device, the stator element including at least two stacked stator housing sheets, each of the stator housing sheets being a frame enclosed by a sheet periphery, at least two protrusions being disposed around the periphery of each of the stator housing sheets, the protrusion being directed from an inside of the stator housing sheet to an outside of the stator housing sheet, a groove being formed between adjacent protrusions, and protrusions of the adjacent stator housing sheets being alternately arranged in a direction in which the at least two stator housing sheets are stacked. Therefore, heat of a stator disposed inside the stator element can be dissipated with a strong heat dissipation capability at relatively low costs. | 2020-06-11 |
20200185985 | Stator of an Electrical Machine and Cooling Apparatus for Same - A stator for an electrical machine, in particular for an electromotive drive machine for an electric or hybrid vehicle, includes a stator core stack with a stator yoke and a number of radial stator teeth, as well as a corresponding number of stator slots, arranged between the stator teeth, for receiving a stator winding. A cooling apparatus has a number of cooling channels, each of which runs axially in one of the stator slots. | 2020-06-11 |
20200185986 | STATOR FOR AN ELECTRICAL MACHINE, IN PARTICULAR OF A MOTOR VEHICLE, AND METHOD FOR PRODUCING SUCH A STATOR - A stator for an electrical machine, with at least one laminated stator core, and with at least one end cap following the laminated stator core in the axial direction of the stator, at least one line element, which is formed separately from the end cap and separately from the laminated stator core and has at least one first cooling channel, through which a cooling medium for cooling the stator may flow, being provided, having a first length region, extending in the laminated stator core, and a second length region, which extends in the end cap, which has at least one second cooling channel, through which the cooling medium may flow and which is fluidically connected to the first cooling channel. | 2020-06-11 |
20200185987 | ROTATING ELECTRIC MACHINE - Provided is a rotating electric machine, including: a stator including: an annular core back; and a plurality of teeth projecting in a radial direction from the core back and being arranged in a circumferential direction, the plurality of teeth having slots each formed between the plurality of teeth adjacent to each other in the circumferential direction; and a rotor including: an annular rotor core which is arranged coaxially with the stator through a magnetic gap; and a plurality of magnetic poles arranged on the rotor core in the circumferential direction, wherein the rotor core includes a plurality of segment cores formed by dividing the rotor core in the circumferential direction with at division surfaces, and wherein the number of segments of the rotor core is different from a divisor and a multiple of the greatest common divisor of the number of poles of the rotor and the number of slots. | 2020-06-11 |
20200185988 | ROTOR AND MOTOR COMPRISING SAME - The present invention provides rotor including: a rotor core having a cylindrical shape; and a plurality of magnets disposed to surround an outer circumferential surface of the rotor core, wherein the magnet includes an inner circumferential surface in contact with the outer circumferential surface of the rotor core, when a first angle is defined by dividing an angle formed by the outer circumferential surface of the rotor core by the number of magnets, a second angle is formed by a first extension line and a second extension line which extend from both end points of the inner circumferential surface of the magnet to a center point of the rotor core on cross sections of the rotor core and the magnet, and a ratio of the second angle to the first angle is in a range of 0.87 to 0.93, thereby providing an advantageous effect of greatly reducing a cogging torque by decreasing a width of the magnet to double a cogging main degree. | 2020-06-11 |
20200185989 | ROTOR OF SYNCHRONOUS MOTOR WITH REINFORCEMENT MEMBER FOR PRESSING MAGNET - A rotor of a synchronous motor is provided with a plurality of magnets fixed to an outer circumferential surface of a rotor core, and a reinforcement member having a cylindrical shape. An interposition member is disposed between the magnet and the reinforcement member. The magnet includes an outer circumferential surface whose center portion in the circumferential direction bulges outward. The interposition member is formed so as to cover the entire outer circumferential surface of the magnet. An outer circumferential surface of the interposition member has a circular shape when cutting along a plane perpendicular to a rotation axis, and is in close contact with an inner circumferential surface of the reinforcement member. | 2020-06-11 |
20200185990 | ROTOR AND MANUFACTURING METHOD OF ARC MAGNET FOR ROTOR - A rotor includes: a rotor core including a plurality of magnet insertion holes provided along the circumferential direction; and a plurality of magnetic pole portions constituted by arc magnets inserted into the magnet insertion holes. The arc magnet, constituting each magnetic pole portion, is arranged to protrude inward of the rotor core in the radial direction, and has thick portions protruding to the outer peripheral surface at both circumferential end portions of the outer peripheral surface. | 2020-06-11 |
20200185991 | ROTOR - A rotor includes: a rotor core including a rotor shaft hole in which a rotor shaft is fastened, a plurality of magnet insertion holes provided along the circumferential direction, and a hollow hole provided between the rotor shaft hole and the magnet insertion holes in the radial direction; and a plurality of magnetic pole portions constituted by permanent magnets inserted into the magnet insertion holes. The hollow hole includes an intersection of the q-axis of each magnetic pole portion and a virtual circle passing through the innermost diameter portion of the magnet insertion holes around the axis of the rotor core, and the hollow hole is disposed to face the magnet insertion holes of adjacent magnetic pole portions. | 2020-06-11 |
20200185992 | ROTOR WITH PRESSURE-DEVIATION GENERATING ASSEMBLY - A rotor with a pressure-deviation generating assembly includes a main body having a plurality of tunnels extending longitudinally, a first pressure-deviation generating assembly, and a second pressure-deviation generating assembly. The first pressure-deviation generating assembly generates a plurality of first high-pressure regions and first low-pressure regions. The second pressure-deviation generating assembly generates a plurality of second high-pressure regions and second low-pressure regions. At least one first flow flows through some of the tunnels from the first high-pressure regions to the second low-pressure regions, and at least one second flow flows through the rest of the tunnels from the second high-pressure regions to the first low-pressure regions. Thereupon, a bi-directional air flow pattern inside the tunnels can be built to promote the heat dissipation of the rotor. | 2020-06-11 |
20200185993 | ELECTRICAL MACHINE - An electrical machine may include a comprise a rotor, a stator, a coolant distributor chamber and a coolant collector chamber. The rotor may be rotated about an axis of rotation that defines an axial direction of the electrical machine. The stator may comprise a plurality of stator windings. The coolant collector chamber may be axially arranged at a distance from the coolant distributor chamber. The coolant distributor chamber may communicate fluidically with the coolant collector chamber by way of least one cooling channel through which a coolant can flow. The at least one cooling channel and the at least one stator winding may be embedded in a plastic mass consisting of an electrically insulating plastic for thermal coupling to the coolant. | 2020-06-11 |
20200185994 | WINDING SYSTEM FOR A STATOR OF AN ELECTRIC MACHINE AND ELECTRIC MACHINE - A winding system ( | 2020-06-11 |
20200185995 | LIQUID THERMOSETTING RESIN COMPOSITION, METHOD OF PRODUCING RESIN CURED PRODUCT, STATOR COIL, AND ROTATING ELECTRICAL MACHINE - Provided is a liquid thermosetting resin composition, including: a thermosetting resin ( | 2020-06-11 |
20200185996 | RADIAL CLEARANCE IN A HYBRID MODULE - A hybrid module includes a housing, a bearing, and an electric motor. The electric motor has a rotor with a rotor carrier radially positioned by the bearing in the housing. The rotor carrier has an annular ring comprising an annular ring outer surface with a first outer diameter. The rotor has a plurality of rotor segments installed on the rotor carrier. The plurality of rotor segments include an outer circumferential surface with a second outer diameter, less than the first outer diameter. In some example embodiments, the electric motor has a stator with a bobbin core and a bobbin shield installed on the bobbin core. In some example embodiments, the bobbin core is at least partially radially aligned with the plurality of rotor segments, and the bobbin shield is at least partially radially aligned with the annular ring. | 2020-06-11 |
20200185997 | ROTATING ELECTRIC MACHINE, ELECTRIC POWER CONVERSION DEVICE AND METHOD OF MANUFACTURING ROTATING ELECTRIC MACHINE - A rotating electric machine includes a field that includes a magnet unit having a plurality of magnetic poles, an armature including a multi-phase armature coil, and an electric power conversion device that is configured to perform electric power conversion and supply electric power resulting from the electric power conversion to the armature. Moreover, one of the field and the armature is configured as a rotor while the other is configured as a stator. The electric power conversion device includes at least one band-shaped busbar through which electric current flows during the electric power conversion. The at least one busbar has a cross section where a thickness in a lateral direction of the cross section at one end of the cross section in a longitudinal direction of the cross section is smaller than a thickness in the lateral direction at the other end of the cross section in the longitudinal direction. | 2020-06-11 |
20200185998 | STATOR UNIT AND FAN MOTOR - A stator unit supporting a rotor rotatable about a central axis and a fan motor are disclosed. The stator unit includes a stator and a stator cap including a fixing part fixed to the stator and a cover covering at least a portion of the stator. The fixing part includes a first fixing part extending downward in an axial direction. | 2020-06-11 |
20200185999 | MACHINED OBJECT INCLUDING MACHINED SURFACE AND COATING SURFACE, AND METHOD OF MANUFACTURING MACHINED OBJECT - A machined object that can prevent a coating material of a coating surface from peeling off when a machined surface that is adjacent to the coating surface is machined after coating of the coating surface. The machined object includes a main body and a coating material applied to the main body, the main body includes a machined surface that is machined, a coating surface that is arranged adjacent the machined surface via a boundary and to which a coating material is applied, and a recess formed in the main body and recessed toward an inner side of the main body from the machined surface and the coating surface at the boundary, and the recess extends along the boundary so as to separate the machined surface and the coating surface from each other. | 2020-06-11 |
20200186000 | MOTOR AND PUMP DEVICE - A motor may include a rotor having a drive magnet; a stator having a drive coil; a partition member between the rotor and stator; a circuit board fixed to the partition; and a magnetic sensor oppositely disposed to an outer face of the drive magnet through the partition. The stator may include an insulation member; and a stator core having salient pole parts. The stator core may include a ring part; and the salient pole part. The insulation member may include an inner flange part. The partition may include a cylindrical tube part, and a bottom part. A first direction end of an outer face of the partition may include an inclined face. The inner flange part may include a positioning part. A terminal of the magnetic sensor may be mounted on the circuit board. The magneto-sensitive part may be disposed between the cylindrical tube part and the positioning part. | 2020-06-11 |
20200186001 | PERMANENT MAGNET MACHINE STATOR - A permanent magnet machine includes a machine housing and a stator disposed within the machine housing. The machine housing has an inner surface that extends between a first housing end and a second housing end along a central longitudinal axis. The stator has a stator core having an exterior surface and an interior surface, each extending between a first face and a second face along the central longitudinal axis. The stator core defines a plurality of openings that extend from the first face towards the second face. | 2020-06-11 |
20200186002 | ROTOR AND ELECTRICAL MACHINE - A rotor for an electric machine comprises at least one structure-borne sound absorbing element made of a cellular metallic material being arranged in the rotor. The electric machine comprises a rotor shaft, two roller bearings and a bearing seat for each one of the two roller bearings, the rotor shaft being rotatably mounted in the two roller bearings, and a structure-borne sound absorbing element made of a cellular metallic material being arranged in the region of at least one of the two bearing seats. | 2020-06-11 |
20200186003 | MULTIPART ROTOR SHAFT FOR AN ELECTRIC MACHINE - A multipart rotor shaft for an electric machine comprises a first shaft journal with a first end flange and a first axial passage bore, a second shaft journal with a second end flange. The rotor shaft also includes a hollow carrier for a laminated rotor core, a line element for conducting a cooling medium, and a separating element which divides a cavity between the carrier and the line element into a first partial cavity and a second partial cavity. | 2020-06-11 |
20200186004 | SUCTION MOTOR AND VACUUM CLEANER HAVING SAME - A suction motor capable of having reduced axial length is disclosed. The suction motor according to the present invention comprises: a rotary shaft; an impeller fixed to one end of the rotary shaft; a bearing assembly provided at one side of the impeller and rotatably supporting the rotary shaft; a permanent magnet provided on the rotary shaft at one side of the bearing assembly; a weight balancer provided on the other end of the rotary shaft at one side of the permanent magnet; and a stator assembly provided at the circumference of the permanent magnet, wherein the weight balancer is formed such that when the rotary shaft rotates, the impeller, the permanent magnet and the weight balancer achieve rotational balance around the bearing assembly. | 2020-06-11 |
20200186005 | METHODS FOR ASSESSING PRESENCE OF ELECTRICAL, ELECTRONIC, AND/OR MECHANICAL FAULTS IN ELECTROMECHANICAL LINEAR ACTUATORS - The present disclosure relates to a method of assessing the presence of an electrical, electronic and/or mechanical fault in an electromechanical linear actuator ( | 2020-06-11 |
20200186006 | HANDHELD POWER TOOL WITH A BRUSHLESS ELECTRIC MOTOR - A power tool comprising a housing, a motor, and a circuit board residing in the housing is provided. A rectifier that receives an alternating current and converts the alternating current to a direct current, a switching arrangement having a plurality of motor switches connected electrically between the rectifier and the motor, and a capacitor connected electrically between the rectifier and the switching arrangement, are mounted on a rear portion of a planar surface of the circuit board. A switching arrangement and at least one heat sink in thermal communication therewith are mounted on a front portion of the planar surface of the circuit board. | 2020-06-11 |
20200186007 | ROTATING ELECTRIC MACHINE - In a rotating electric machine, a rotor core has a rotor core cooling hole under a state of being coupled to a first gap at a position on a radially inner side with respect to a center portion of a first inner wall surface in a length direction. The rotor core has a radially-outer-side refrigerant flow path formed under a state of being coupled to a radially-outer-side end portion of the first gap. A first end plate has a communication path formed so as to extend from an inner end surface of the first end plate to the rotor core cooling hole. A second end plate has a discharge path formed so as to allow the radially-outer-side refrigerant flow path to communicate with an outside. | 2020-06-11 |
20200186008 | ELECTRIC POWER TOOL - A motor retainer is provided on an inner circumferential surface of a housing and retains an outer circumference of a motor unit. A rotation detector includes a rotating body attached to a motor shaft and a position detector that outputs a rotational position signal corresponding to a rotational position of the rotating body. A sensor substrate retainer is provided on the inner circumferential surface of the housing and retains the position detector at a position facing the rotating body. | 2020-06-11 |
20200186009 | MOTOR - A motor includes a stationary portion including an annular stator centered on a central axis extending in a vertical direction, and a rotating portion including a magnet radially opposite to the stator, and rotatable about the central axis. The stationary portion includes a circuit board axially below the magnet and an electronic component mounted on the circuit board, the circuit board includes a board hole passing therethrough in an axial direction. The electronic component includes a component body portion including at least a portion thereof in the board hole, a first terminal portion extending in a first direction from the component body portion, the first direction being not parallel to the axial direction, a second terminal portion extending downward from the first terminal portion, and a third terminal portion extending from the second terminal portion, and joined to the circuit board through solder. | 2020-06-11 |
20200186010 | CIRCUIT BOARD, MOTOR AND ELECTRONIC POWER STEERING SYSTEM - The present disclosure provides techniques for securing a running stability of a vehicle, whereby danger of safety accident can be significantly reduced during operation of a vehicle by enabling a minimum number of Hall elements to be driven even during damage to a power terminal or to a ground unit due to defect in circuit by separately forming a power terminal supplying a power to a plurality of magnetic elements in a plurality of numbers. | 2020-06-11 |
20200186011 | ABNORMALITY DETECTING DEVICE FOR CURRENT SENSOR - An abnormality detecting device for a current sensor detecting whether a single current sensor provided in an inverter which supplies electric power to a motor driving a compressor is abnormal detects phase currents of the motor based on an output signal of the current sensor, estimates an estimated phase current value of the phase currents of the motor based on at least one of a discharge pressure and a suction pressure of the compressor and a rotational speed of the motor, compares detected values of the phase currents with an estimated phase current value of the phase currents, and then detects whether the current sensor is abnormal based on the comparison result. | 2020-06-11 |
20200186012 | HIGH ACCELERATION ROTARY ACTUATOR - A high acceleration rotary actuator motor assembly is provided comprising a plurality of phase motor elements provided in tandem on a shaft, each phase element including a rotor carrying magnets which alternate exposed poles, the rotor being connected to the shaft and surrounded by a stator formed of a plurality of interconnected segmented stator elements having a contiguous winding to form four magnetic poles, the stator being in electrical communication with a phase electric drive unit, wherein each of the poles exert a magnetic force upon the magnets carried by the rotor when the poles are electrically charged by the phase electric drive unit. The rotors and magnets of each phase motor element are offset about the shaft from one another. In addition, the phase motor elements are electrically isolated from one another. | 2020-06-11 |
20200186013 | DECELERATOR-EQUIPPED MOTOR UNIT - Provided is a decelerator-equipped motor unit which can achieve cost reductions in the control board and improvement of both mechanical and electrical reliability through a particular arrangement of elements on the board, thereby achieving a smaller size by realizing an appropriate board shape without increasing the size of the unit. | 2020-06-11 |
20200186014 | METHOD OF MANUFACTURING LAMINATED STEEL PLATE, LAMINATED STEEL PLATE, MOTOR, AND ADHESIVE COMPOSITION FOR LAMINATED STEEL PLATE - A method of manufacturing a laminated steel plate capable of simplifying the manufacturing process. This is achieved by a method of manufacturing a laminated steel plate including a step of applying a mixture containing an oil and an adhesive composition for a laminated steel plate including at least one kind of a (meth)acrylate compound compatible with the oil and an organic peroxide to one side or both sides of a strip-like steel plate; and a step of punching a steel plate body from the strip-like steel plate with a punch portion of a press forming device, and laminating and bonding the steel plate bodies. | 2020-06-11 |
20200186015 | MANUFACTURING METHOD OF CORE FOR ROTARY ELECTRIC MACHINE - A manufacturing method of a core for a rotary electric machine includes: a step of forming a stator side release hole in at least a first portion of a portion of an electric steel plate in which a slot portion is formed; a step of forming a rotor side hole portion in at least a part of a portion of the electric steel plate in which a hole portion is formed; a step of forming a flattened portion; and a step of forming a rotor plate member and a stator plate member by blanking the electric steel plate. | 2020-06-11 |
20200186016 | ELECTRIC MACHINE SYSTEMS - An electric machine system disclosed herein comprises first and second electric machines configured to drive a load. The first electric machine has a plurality of first rotors. The second electric machine has a plurality of second rotors. At least one of the second rotors is indexed relative to a respective one of the first rotors to, in use, provide a torque phase offset between the first and second electric machines. A shaft is coupled to the load and connects the respective one of the first rotors with the at least one of the second rotors. The respective one of the first rotors is coaxial with and axially spaced apart from the at least one of the second rotors. | 2020-06-11 |
20200186017 | ELECTRIC MACHINE SYSTEMS - An electric machine system described herein comprises a first and second electric machines configured to drive a load. The first electric machine has a plurality of first rotors driven using electric power having a first phase. The second electric machine has a plurality of second rotors driven using electric power having a second phase. The second phase differs from the first phase. Each of one or more shafts connects a first rotor with a second rotor. The first rotor is coaxial with and axially spaced apart from the second rotor. | 2020-06-11 |
20200186018 | ELECTRIC MACHINE SYSTEMS - An electric machine system described herein comprises a first electric machine rotor, a first gear and a second gear. The first gear is connected to the first electric machine rotor and to a first input/output shaft. The second gear is connected to the first electric machine rotor and to a second input/output shaft. The first electric machine rotor is disposed between the first gear and the second gear. | 2020-06-11 |
20200186019 | ADAPTABLE PRECISION TRIGGERING MECHANISM - A precision triggering mechanism for engaging a portion of a device and a method of using the same are provided. The mechanism comprises an electric linear motor, a force limiter, a force sensor, an engagement slide, and a controller. The electric linear motor includes a drive rod, a driver that applies a force to the drive rod to move the drive rod linearly, and a sensor for detecting a linear position of the drive rod. The force limiter is connected to the drive rod and is configured to absorb an amount of axial force asserted by the drive rod above a maximum amount. The force sensor is connected to the force limiter and is configured to detect an amount of force applied by the force limiter on the force sensor. The engagement slide includes an end extending from the force sensor for engaging the portion of the device. The controller is configured to receive a signal representative of the linear position of the drive rod from the sensor of the electric linear motor; receive from the force sensor a signal representative of the amount of force applied by the force limiter; and direct the driver of the electric linear motor to apply a force to the drive rod based on at least one of the linear position of the drive rod or the amount of force applied by the force limiter. | 2020-06-11 |
20200186020 | MAGNETIC COUPLING DEVICE - A magnetic coupling device ( | 2020-06-11 |
20200186021 | FREQUENCY JITTER FOR A POWER CONVERTER - A controller for use in a power converter comprising a request control circuit coupled to receive a feedback signal representative of an output of the power converter. The request control circuit is coupled to generate a request signal for controlling a power switch. The request signal can include a synchronization signal in response to the feedback signal and a jitter average signal. The synchronization signal is generated by the request transmitter circuit and corresponds to an average on time for controlling the power switch. | 2020-06-11 |
20200186022 | CONVERTER ARRANGEMENT COMPRISING A STAR POINT REACTOR - A converter arrangement includes a converter which can be switched between an AC voltage supply system and a DC voltage circuit and which has converter valves that extend between AC voltage connections and DC voltage connections. Each converter valve has a series connection of bipolar submodules that include power semiconductor devices. The converter arrangement further includes a star point reactor which is located on the AC voltage side of the converter and which has impedance coils that are interconnected to form a grounded neutral point. A suppression filter is connected between the neutral point and a ground connection. The suppression filter is configured to suppress a harmonic of an alternating voltage in the AC voltage supply system. | 2020-06-11 |
20200186023 | RIPPLE DETECTION AND CANCELLATION FOR VOLTAGE REGULATOR CIRCUITS - Techniques are described for ripple detection and cancellation in switching voltage regulator circuits. For example, in a switching voltage converter, a voltage is up-converted or down-converted by switching high side and low side switches and passed through a low-pass filter for averaging. While the act of switching can result in conversion of the voltage with good efficiency, it also typically generates ripples on the output voltage, which can be undesirable in some applications. Embodiments use the switching voltage, the output voltage, and a feed-forward loop to generate a current cancellation signal to have particular gain, timing, and polarity that effectively emulates the complement of the inductor ripple current. The cancellation current signal can be injected into the output node, such that the cancellation current signal sums with the inductor ripple current at the output node, thereby at least partially cancelling the effect of the inductor ripple current. | 2020-06-11 |
20200186024 | SYSTEM OF CONTROLLING CHARGING APPARATUS FOR VEHICLE - A system of controlling a charging apparatus for a vehicle may include a power supply unit supplying an AC power, a power factor correction (PFC) converter unit connected to the power supply unit and converting the AC power supplied from the power supply unit into a DC power and supplying the converted DC power to a load, and a controller extracting a high frequency component from the AC power input to the PFC converter unit, determining a frequency of the extracted high frequency component, and limiting, when the determined frequency is equal to or greater than a predetermined value, output power from the PFC converter unit to a value lower than the predetermined value. | 2020-06-11 |
20200186025 | STRUCTURE FOR VARIABLY CONTROLLING Y-CAPACITOR FOR NOISE ATTENUATION CONTROL - A structure for controlling a Y-capacitor for reducing common mode noise of an electric power conversion system of an environmentally-friendly vehicle. The structure cooperates with an infotainment system for a vehicle and reduces common mode noise of an electric power conversion system. In particular, the structure includes: a switching element connected to a high-voltage power source coupled to the vehicle and to attenuate noise occurring at the time of PWM control; and an electric power conversion part which receives common mode noise occurring from the power source and controls ON/OFF of the switching elements in order to reduce the received common mode noise. | 2020-06-11 |
20200186026 | CONTROL DEVICE FOR DC CONVERTER, DC CONVERTER, AND METHOD FOR CONTROLLING A DC CONVERTER - The invention relates to control of a DC converter having multiple parallel-connected DC converter modules. Here, a common variable for the voltage control is formed for the control of all the DC converter modules. In addition, a separate current controller is provided for each DC converter module. For each DC converter module, a control variable can be formed from the individually determined current control and the jointly determined voltage control. | 2020-06-11 |
20200186027 | CHARGE PUMP CIRCUITS - A charge pump circuit includes a voltage output terminal, a flying capacitor, and a current source. The flying capacitor includes a first terminal coupled to the voltage output terminal, and a second terminal coupled to an output terminal of a drive circuit. The current source includes a first terminal coupled to the voltage output terminal, and a second terminal coupled to a power supply rail. | 2020-06-11 |
20200186028 | SWITCHED TANK CONVERTER WITH LOW VOLTAGE STRESS - A switched tank converter includes: a first conversion unit and a second conversion unit, each having a clamp capacitor coupled between a first terminal and a third terminal, a high side switch coupled between the first terminal and a switch node, a low side switch coupled between the switch node and a second terminal, and a resonant tank coupled between the switch node and a fourth terminal; and a rectification unit having four rectification switches, wherein a second terminal of the first rectification switch and a first terminal of the third rectification switch are coupled to the fourth terminals of the first and second conversion units, a second terminal of the fourth rectification switch and a first terminal of the second rectification switch are coupled to the third terminals of the first and second conversion units. | 2020-06-11 |
20200186029 | ARRANGEMENT AND METHOD FOR CURRENT MEASUREMENT - An arrangement is for determining the level of the electric current for a low-voltage circuit. The arrangement includes a conductor, forming the primary side of a transformer, the secondary side being connected to a rectifier circuit. A first output of the rectifier is connected firstly via a first diode to a voltage stabilizing circuit for an electronic unit having a controller and secondly to a first series circuit formed by a first switching component and a first resistor. The arrangement is configured in such a way that in the event of a first voltage value being reached at the first input of the voltage stabilizing circuit, the first switching component is switched to be conductive. The secondary current of the transformer flows via the first resistor, as a result of which an electrical voltage is dropped across the first resistor. The electric current of conductor is determinable from the voltage. | 2020-06-11 |
20200186030 | INTEGRATED CIRCUIT AND SWITCHING CIRCUIT - An integrated circuit that drives a switching device provided between a first line on a ground side and a second line on a power supply side, when a power supply voltage is applied between a first input terminal connected with a first capacitor and a second input terminal, the first capacitor having one end grounded and another end connected to the first input terminal, the integrated circuit includes: a first terminal connected to a circuit element, the circuit element having one end grounded and another end connected to the first terminal; and a drive circuit that changes a voltage at the first terminal to one logic level when a drive signal of the switching device changes to the one logic level, and changes the voltage at the first terminal to another logic level when the drive signal changes to the other logic level. | 2020-06-11 |
20200186031 | SEMICONDUCTOR DEVICE AND LOAD CONTROL SYSTEM - A semiconductor device disposed on a primary side of a system generating a secondary side voltage in an insulated form from a primary side voltage includes: a signal generation circuit configured to generate a voltage information signal for transmitting voltage information based on the primary side voltage to a secondary side of the system in the insulated form. | 2020-06-11 |
20200186032 | Switching Power Supply Device - There is provided a switching power supply device which has a high voltage control resolution. A switching power supply device according to the present invention includes: a power conversion circuit which includes a switching element; and a control circuit unit which outputs a driving pulse to the switching element based on an output voltage command value and an output voltage value of the power conversion circuit, and the control circuit unit changes a switching cycle and outputs a driving pulse based on a difference between a calculation value of an operation amount based on the output voltage command value and the output voltage value, and a setting value of the operation amount. | 2020-06-11 |
20200186033 | WIRELESS POWER RECEIVER - A wireless power receiver includes a rectifier configured to convert a radio frequency (RF) voltage signal generated based on an RF input to a direct current (DC) voltage, and a boost converter configured to generate a voltage for battery charging using the RF voltage signal as a switching signal. | 2020-06-11 |
20200186034 | CONVERTER WITH SELECTABLE OUTPUT-VOLTAGE RANGES - A converter that makes it possible to selectively switch between various converter architectures that are capable of supplying different output voltages on the basis of one and the same input voltage. The various architectures share at least some electronic components with one another, thereby decreasing the production cost of the converter according to the invention. The converter is particularly advantageous for lighting modules for motor vehicles, in which there are substantial space constraints but in which wide output-voltage ranges are required to be able to supply a varied and substantial number of electroluminescent light sources (LEDs) with power. | 2020-06-11 |
20200186035 | DC-DC CONVERTER HAVING HIGHER STABILITY AND OUTPUT ACCURACY - The present invention provides a DC-DC converter, wherein the DC-DC converter includes a controller, a first switch, a second switch, an inductor and a ripple signal generator. The controller is configured to generate an up signal and a down signal according to an output signal and a ripple signal. The first switch is coupled between an input voltage and a first node, and is controlled by the up signal. The second switch is coupled between the first node and a reference voltage, and is controlled by the down signal. The inductor is coupled between the first node and an output node, and is configured to receive a first signal from the first node to generate the output signal at the output node. The ripple signal generator is configured to generate the ripple signal, and reset the ripple signal every cycle to a specific voltage. | 2020-06-11 |
20200186036 | POWER CONVERSION DEVICE AND CONTROL CIRCUIT - A power conversion device according to one or more embodiments may include: a microcomputer; and an output circuit controlled by the microcomputer, including an output unit that converts an input power into a predetermined power and outputs the predetermined power, an internal power source that supplies a power source to the microcomputer, a driver that drives the output unit by a signal from the microcomputer, and a microcomputer stop transition unit that, when an operation of the power conversion device is stopped, outputs a microcomputer stop signal to the microcomputer and causes an operation of the microcomputer to transition to a stop state. In one or more embodiments, after the microcomputer stop transition unit causes the operation of the microcomputer to transition to a stop state, the microcomputer or the output circuit may stop an output of the internal power source. | 2020-06-11 |
20200186037 | UNIVERSAL INPUT-VOLTAGE - COMPATIBLE SWITCHED-MODE POWER SUPPLY - Switched-mode power supply (SMPS) integrated circuit including direct current step-down converter, switch, and element for potential energy storage in electric field and having T-On voltage. SMPS configured to: receive DC input current and output through load; operate in boundary conduction mode applying pulse-width-modulated voltage to switch for controlling T-On/T-Off duty cycle; generate regulated T-On current setting maximum T-On; monitor input voltage by reduction to voltage signal range; convert signal voltage to signal current value within current signal range; output T-On modulation current including signal current; combine T-On modulation current with regulated T-On current during T-On period to store potential energy in element while monitoring T-On voltage of element; and initiate T-Off period when potential energy stored in element reaches maximum T-On voltage. Further SMPS's. Method of operating SMPS's. | 2020-06-11 |
20200186038 | TROUBLESHOOTING METHOD AND APPARATUS FOR POWER SUPPLY DEVICE - Embodiments of the application disclose a troubleshooting method and device. The method is applicable to an inverter power supply system in the power supply device. The inverter power supply system includes at least two DC/DC modules, and any one of the DC/DC modules includes fuses F | 2020-06-11 |
20200186039 | CONTROLLER AND CONTROL METHOD USED IN SWITCHED TANK CONVERTER - A control method used in a switched tank converter with a first conversion unit, a second conversion unit and a rectification unit, includes: based on current flowing through the resonant tanks in the first and second conversion units, determining when to turn on the high side switches of the first and second conversion units, and when to turn on the low side switches of the first and second conversion units; detecting whether current flowing through the first, second, third and fourth rectification switches crosses zero; and based on the detection result, respectively determining when to turn off the high side switch of the first conversion unit, when to turn off the high side switch of the second conversion unit, when to turn off the low side switch of the second conversion unit, and when to turn off the low side switch of the first conversion unit. | 2020-06-11 |
20200186040 | IGNITION EXCITER ASSEMBLY AND METHOD FOR CHARGING A TANK CAPACITOR FOR AN IGNITION EXCITER - An ignition exciter high frequency switching converter, ignition assembly, and method of operating the same, include a high frequency switching converter operably by way of a control circuit having a timing mechanism, to operate the high frequency switching converter in discontinuous conduction mode to charge a tank capacitor for igniting an igniter. | 2020-06-11 |
20200186041 | FLYBACK CONVERTER WITH OUTPUT CURRENT CALIBRATION - An output current calibration is disclosed to increase the accuracy and precision of the constant-current mode for a flyback converter. | 2020-06-11 |
20200186042 | DRIVE MODULE, POWER SUPPLY CONTROLLER AND SWITCHING POWER SUPPLY - A drive module for use in a switching power supply generating output voltage from input voltage by turning on/off an output transistor and a synchronous rectification transistor includes: a zero-cross detection circuit detecting zero-cross of inductor current flowing when the synchronous rectification transistor is turned on; a drive logic circuit turning on the output transistor and turning off the synchronous rectification transistor when control signal is at first logic level, turning off the output transistor and turning on the synchronous rectification transistor when the control signal is at second logic level, and turning off both the output transistor and the synchronous rectification transistor when the zero-cross is detected; and a logic level switching circuit switching the control signal to third logic level when the zero-cross is detected, wherein the zero-cross detection circuit, the drive logic circuit, and the logic level switching circuit are integrated in a single package. | 2020-06-11 |
20200186043 | POWER CONVERSION APPARATUS HAVING SCOTT-T TRANSFORMER - A power converter having a Scott-T transformer includes a direct current to alternating current converter configured to have at least two multilevel converters converting input direct current power to alternating current power, a Scott-T transformer configured to operate in medium frequency of several hundreds of Hz to several tens of kHz, to transform a voltage level of the alternating current power from each of the at least two multilevel converters of the direct current to alternating current converter into three-phase alternating current power, and to output the three-phase alternating current power, and an alternating current to direct current converter configured to convert the three-phase alternating current power from the Scott-T transformer to direct current power. | 2020-06-11 |
20200186044 | POWER SUPPLY APPARATUS AND IMAGE FORMING APPARATUS - The power supply apparatus includes a notification unit configured to notify, according to an input first signal, a control unit that a target voltage is switched from a first voltage to a second voltage higher than the first voltage; and a switching unit configured to switch the target voltage to the first voltage or the second voltage. The switching unit switches the target voltage from the first voltage to the second voltage after the notification unit notifies the control unit that the target voltage is switched from the first voltage to the second voltage. | 2020-06-11 |
20200186045 | POWER SUPPLY HAVING TWO QUADRANT CONVERTER AND TECHNIQUES FOR OPERATION - A power supply may include a power block to receive an input power and generate an output power; and a control system coupled to the power block, wherein the power block and control system are arranged to provide unidirectional current flow and bipolar voltage during operation of the power supply. | 2020-06-11 |
20200186046 | DC-TO-DC CONVERTER - [Object] To be able to provide means for suppressing inrush current at a time of activation even when there is a difference between input voltage and output voltage in a DC-to-DC converter in which high-capacity capacitors are connected. | 2020-06-11 |
20200186047 | Circuits and Methods for Secondary-Side Rectified Voltage Sensing in Isolated Switched-Mode Power Converters - An isolated switched-mode power converter converts power from an input source into power for an output load. A digital controller senses a secondary-side voltage, such as a rectified voltage, of the power converter. The secondary-side voltage is divided down using a high-impedance voltage divider. The resultant divided-down voltage is provided to a voltage sensor within the digital controller. The voltage sensor level shifts the provided voltage, and buffers the resulting level-shifted voltage. The buffered, level-shifted voltage is provided to a tracking analog-to-digital converter (ADC) for digitization. The buffered signal provided to the tracking ADC has a high current capability, such that the voltage input to the tracking ADC may quickly converge before the tracking ADC outputs a digital value for the sensed secondary-side voltage. | 2020-06-11 |
20200186048 | UNITED CONVERTER APPARATUS AND OPERATING METHOD THEREOF - A united converter apparatus and an operating method thereof are disclosed. The united converter apparatus includes a high-voltage charger charging a high-voltage battery, using commercial power and a low-voltage charger charging a low-voltage battery, using the high-voltage battery. The high-voltage charger includes a voltage level adjustment device boosts a voltage of the commercial power to apply the boosted voltage to the high-voltage battery and drops a high voltage applied from the high-voltage battery to apply the dropped voltage to the low-voltage charger. | 2020-06-11 |
20200186049 | SWITCHING POWER SUPPLY DEVICE - A switching power supply device includes a switching circuit including first switching elements, a rectification circuit including second switching elements, a smoothing circuit, and a controller. The controller performs switching between synchronous rectification control for driving the second switching elements and in synchronization with the switching circuit and asynchronous rectification control for driving the second switching elements independently of the switching circuit, and performs feedback control based on a normal duty on the first switching elements and the second switching elements. When the synchronous rectification control is switched to the asynchronous rectification control, the controller replaces the normal duty with a switching duty different from the normal duty and performs feedback control by the normal duty after the synchronous rectification control is switched to the asynchronous rectification control. | 2020-06-11 |
20200186050 | SWITCH-MODE POWER CONVERTERS USING HALL EFFECT SENSORS AND METHODS THEREOF - System and method for transmitting and receiving. For example, the system includes a transmitter, one or more wires, and a receiver connected to the transmitter through the one or more wires. The transmitter is configured to generate a first current, and the receiver is configured to receive the first current. The receiver includes a coil, a Hall effect sensor, and a comparator, and the Hall effect sensor includes a first electrode and a second electrode. The coil is electrically isolated from the Hall effect sensor and configured to generate a magnetic field based at least in part on the first current flowing through the coil, and the Hall effect sensor is configured to sense the magnetic field and generate a first voltage at the first electrode and a second voltage at the second electrode. The comparator includes a first input terminal and a second input terminal. | 2020-06-11 |
20200186051 | ELECTRIC VEHICLE, CAR CHARGER FOR ELECTRIC VEHICLE, AND CONTROL METHOD THEREOF - The present disclosure discloses an electric vehicle, a car charger for an electric vehicle and a control method thereof. The car charger includes: a charging contactor, a first end of which is configured for coupling to a first end of an alternating-current power source; an H bridge, including first and second alternating-current ends and first and second direct-current ends, where the first and second direct-current ends are configured for coupling to a power battery, the first alternating-current end is configured for coupling to a second end of the charging contactor, and the second alternating-current end is configured for coupling to a second end of the alternating-current power source; a first voltage sampling module, configured to sample a voltage of the first end of the charging contactor to obtain a first sampling voltage; a second voltage sampling module, configured to sample a voltage of the second end of the charging contactor to obtain a second sampling voltage; and a control module, configured to control the H bridge to perform an inversion operation when the alternating-current power source is coupled to the car charger such that the second sampling voltage has a synchronous phase and the same amplitude as the first sampling voltage, then control the charging contactor to pull in, and control the H bridge to perform a rectifying operation such that the alternating-current power source charges the power battery. | 2020-06-11 |
20200186052 | RECTIFYING ELEMENT AND VOLTAGE CONVERTER COMPRISING SUCH A RECTIFYING ELEMENT - A rectifying element includes a MOS transistor series-connected with a Schottky diode. A bias voltage is applied between the control terminal of the MOS transistor and the terminal of the Schottky diode opposite to the transistor. A pair of the rectifying elements are substituted for diodes of a rectifying bridge circuit. Alternatively, the control terminal bias is supplied from a cross-coupling against the Schottky diodes. In another implementation, the Schottky diodes are omitted and the bias voltage applied to control terminals of the MOS transistors is switched in response to cross-coupled divided source-drain voltages of the MOS transistors. The circuits form components of a power converter. | 2020-06-11 |
20200186053 | POWER CONVERTER - A power supply device for converting an AC power input into a DC power output comprises a rectifier module connected to the AC power input for producing rectified power; a final stage DC-DC converter for producing the DC power output; and one or more smoothing stages provided between the rectifier module and the final stage DC-DC converter to smooth the rectified power. There is an initial DC-DC converter module is provided between the rectifier and one of the smoothing stages to lower the voltage range of the output signal from the rectifier. The lowered voltage range of the rectified power is provided directly to the final stage DC-DC converter, without a power storage device storing the lowered voltage range rectified power. | 2020-06-11 |
20200186054 | Maximizing Power in a Photovoltaic Distributed Power System - A power harvesting system including multiple parallel-connected photovoltaic strings, each photovoltaic string includes a series-connection of photovoltaic panels. Multiple voltage-compensation circuits may be connected in series respectively with the photovoltaic strings. The voltage-compensation circuits may be configured to provide respective compensation voltages to the photovoltaic strings to maximize power harvested from the photovoltaic strings. The voltage-compensation circuits may be include respective inputs which may be connected to a source of power and respective outputs which may be connected in series with the photovoltaic strings. | 2020-06-11 |
20200186055 | Transformer-less, Tapped Point AC Voltage Splitter for Full Bridge DC AC Inverters - An embodiment replaces a transformer with a capacitor-based circuit module in a DC AC converter. | 2020-06-11 |
20200186056 | TRANSDUCERS WITH ELECTROSTATIC REPULSION AND ASSOCIATED SYSTEMS AND METHODS - In some embodiments, a device, such as a transducer, includes a polymer element disposed between electrodes, and a control circuit configured to apply electrical potentials having the same polarity to the electrodes. A separation distance between the electrodes may be increased by an electrostatic repulsion between the electrodes. Various other devices, systems, methods, and computer-readable media are also disclosed. | 2020-06-11 |
20200186057 | METHOD FOR CONTROLLING COMPRESSOR BRAKING, FREQUENCY CONVERTER AND VARIABLE SPEED COMPRESSOR - Embodiments of the present invention provide a method for controlling compressor braking, a frequency converter and a variable speed compressor. The method includes steps of: determining to brake a compressor, wherein a brake circuit includes three switching units and the three switching units are respectively electrically connected to three phases of windings of a motor of the compressor; actuating two of the three switching units to short-circuit two phases of windings of the motor. The two phases of windings of the motor are short-circuited by controlling the three switching units to generate braking torque, such that the compressor is braked without introducing a DC voltage, and thus the braking energy consumption is reduced. Besides, by turning on only two switches at a time, the switching abrasion is reduced, and the overall service life of the three switching units is effectively improved. | 2020-06-11 |
20200186058 | VEHICLE DRIVING APPARATUS - A vehicle driving apparatus includes an inverter which drives a permanent magnet motor. The inverter includes a three-phase bridge circuit including a plurality of switch elements, a drive circuit connected to the three-phase bridge circuit, a control circuit connected to the drive circuit, and an abnormality detecting unit which detects abnormality of the inverter. The drive circuit includes a three-phase-short-circuit-forming circuit which causes three phases of the permanent magnet motor to form short circuits, an abnormality accepting terminal which accepts an abnormality signal output from the abnormality detecting unit, and a check terminal which accepts an active check signal for causing the three-phase-short-circuit-forming circuit to perform three-phase short circuit control. | 2020-06-11 |
20200186059 | CONTROL METHOD OF A DIRECT CURRENT ELECTRIC MOTOR - The present invention concerns a method of controlling a rotational speed of a rotor ( | 2020-06-11 |
20200186060 | POSITION CORRECTED COMMUTATION OF BRUSHLESS DIRECT CURRENT MOTORS - Examples of methods and systems for compensating for the timing delay caused by the winding impedance of the motor coils and/or for non-ideal rotor magnet shapes and positions are disclosed. The example methods and systems may include generating a synthesized commutation signal compensating for non-ideal magnet shapes and positions (e.g., asymmetrical magnet positions) on a rotor and/or compensates for the timing delay caused by the winding impedance of the motor coils. | 2020-06-11 |
20200186061 | CONTINUOUSLY ROTATING ELECTRIC MOTOR HAVING A PERMANENT MAGNET ROTOR - A continuously rotating electric motor includes a rotor provided with permanent magnets and a stator formed by two coils in which, when the rotor is rotating, two induced voltage signals (U | 2020-06-11 |
20200186062 | RIPPLE COUNTING FILTERING AND PEAK DETECTION METHOD AND SYSTEM - A control system for controlling a mechanically commutated direct current electric motor and corresponding method of operation are provided. The control system includes a motor current sensing circuit for sensing a motor current comprising a plurality of ripples due to commutation of the motor and outputting a motor current signal. The control system also includes a controller including a finite state machine unit and is configured to detect the plurality of ripples in the motor current and to determine whether each of the plurality of ripples is a valid ripple using the finite state machine unit. The controller is also configured to count the plurality of ripples determined to be valid using the finite state machine unit and to determine at least one of a motor rotational position and a motor speed of the motor based on a quantity of the plurality of ripples determined to be valid. | 2020-06-11 |
20200186063 | Linear Motor Track System With Automatic Gravity Detection - A mover is configured to be electromagnetically propelled along a track in a linear motor track system with a force that is calculated to include compensation for gravity. A multi-axis accelerometer arranged in each segment of the track can detect an orientation or angle of the track segment for determining gravity with respect to the particular section. As a result, if the track is at an incline, such as a ramp, a desired force for moving a mover along the track can be compensated to include gravity due to the incline for achieving a desired motion result. In addition, the detected orientation of the track can be compared to an expected orientation stored by a control program to avoid a loss of performance due to physical changes in the track not matching an expected/programmed configuration of the track. | 2020-06-11 |
20200186064 | DC ELECTRIC MOTOR WITH ASYMMETRICAL STATOR INDUCTORS - A DC motor including a continuous rotation rotor; a first inductor characterized by first parameters; a second inductor characterized by second parameters; a voltage supply unit; a measurement unit for detecting time instants when a first induced voltage in the first inductor equals a second induced voltage in the second inductor; and a control unit for controlling the application of drive voltage pulses to the inductors. The rotor faces first the second inductor before facing the first inductor when being rotated. At least one of the second parameters is selected different from a corresponding parameter of the first parameters such that a maximum induced voltage in the first inductor is greater than a maximum induced voltage in the second inductor. The control unit is arranged to trigger each of the drive voltage pulses after a detection of an equal induced voltage in the first and second inductors. | 2020-06-11 |
20200186065 | MOTOR DRIVE UNIT OF A DC ELECTRIC MOTOR - A motor drive unit for driving a direct current electric motor including a moving part equipped with permanent magnets. The motor drive unit, which is powered by a voltage supply source, includes a switch circuit, an inductor circuit and a capacitor circuit including a set of capacitors. By selectively opening and closing the switches of the switch circuit, a series of consecutive low energy pulses can be generated such that the power consumption of the motor drive circuit is minimized. | 2020-06-11 |
20200186066 | FREQUENCY AND LOAD BALANCE COMPENSATED, GATE FIRING PHASE SHIFT DELAY LINE - An apparatus for an alpha trim adjustment includes a phase delay circuit that creates a phase delay for a gate signal for a switching cycle. The gate signal is for a phase of a three-phase, phase shifted alternating current (“AC”) input of a multi-pulse motor drive powering a direct current (“DC”) motor. The apparatus includes an alpha trim circuit that modifies the phase delay with an alpha trim adjustment to create an adjusted phase delay for the switching cycle, a delay application circuit that applies the adjusted phase delay to the gate signal. | 2020-06-11 |
20200186067 | Motor Control Device with Built-in Current Sensing Resistor and Power Transistor - A motor control device with built-in shunt resistor and power transistor is disclosed, comprising a high-thermally conductive substrate; an electrically conductive circuit which is thermo-conductively installed on the high-thermally conductive substrate and includes a first thermal connection pad portion and a second thermal connection pad portion mutually spaced apart; a high power transistor conductively connected to the electrical conducive circuit; and a shunt resistor conductively connected to the high power transistor, respectively including a body whose thermal expansion coefficient is greater than that of the high-thermally conductive substrate, as well as a pair of welding portions extending from the body, in which the body has a prescribed width, and the width of the welding portion is greater than the prescribed width, and the body and the high-thermally conductive substrate are spaced apart such that, upon welding the welding portion to the first thermal connection pad portion and the second thermal connection pad portion, the thermal expansion stress occurring between the body and the high-thermally conductive substrate can be distributed and undertaken in the width direction. | 2020-06-11 |
20200186068 | ELECTROMECHANICAL POWER TRANSMISSION CHAIN, AND AN ELECTRIC SYSTEM, A METHOD AND A COMPUTER PROGRAM FOR CONTROLLING THE SAME - An electric system of an electromechanical power transmission chain is provided that includes a first capacitive circuit, converter equipment between the first capacitive circuit and an electric machine, a second capacitive circuit, and a direct voltage converter between the first and second capacitive circuits. The electromechanical power transmission chain is a parallel transmission chain where the electric machine is mechanically connected to a combustion engine and to one or more actuators. The electric system includes a control system for controlling the direct voltage converter in response to changes in a first direct voltage of the first capacitive circuit and for controlling the converter equipment in response to changes in a second direct voltage of the second capacitive circuit. The first direct voltage is kept on a predetermined voltage range whereas the second direct voltage is allowed to fluctuate in order to respond to peak power needs. | 2020-06-11 |
20200186069 | METHOD OF CHARACTERISING A SYNCHRONOUS MOTOR - A method suitable for characterizing a motor, for instance a permanent magnet synchronous motor, includes obtaining a plurality of winding flux linkage values or terminal voltages of the motor, each corresponding to a different combination of phase current magnitude and phase advance. The resultant flux-linkage values or terminal voltages are transformed into the rotor dq reference frame. The flux linkage model is fitted to the one or more dq-axis flux-linkage values or terminal voltages and their linked phase current magnitude and phase advance using a process of parametric optimisation. | 2020-06-11 |
20200186070 | CONTROL DEVICE FOR ROTATING ELECTRICAL MACHINE - A control device includes: a current detector that detects rotating electrical machine currents flowing to the rotating electrical machine; a position estimator that estimates a rotor position of the rotating electrical machine based on the rotating electrical machine currents; a controller that calculates drive voltage commands based on the rotating electrical machine currents and information on the rotor position, adds position estimation voltage commands and the drive voltage commands to obtain rotating electrical machine voltage commands. The position estimator extracts position estimation currents included in the rotating electrical machine currents, the position estimation currents being changed according to the position estimation voltage commands, and estimates the rotor position of the rotating electrical machine using a DC component of amplitudes of the position estimation currents extracted, the DC component being not changed according to the rotor position. | 2020-06-11 |
20200186071 | METHOD OF CONTROLLING A PERMANENT MAGNENT SYNCHRONOUS MOTOR AND A MOTOR CIRCUIT - A method of controlling a motor, for example of an electric power steering system, includes receiving a motor torque demand signal indicative of a torque required from the motor. A current demand signal indicative of the currents to be applied to each phase to meet the torque demand is generated from the motor torque demand signal. One or more operational values from the motor are determined. The current demand signal is set as a function of one or more parameters of the motor obtained by fitting a flux linkage model to the measured operational values. A motor circuit having the permanent magnet electric motor includes a control stage arranged to generate the current demand signal in response to a torque demanded of the motor. A modifying means modifies the magnitude and/or the phase of the current demanded for each phase of the motor by the controller. | 2020-06-11 |
20200186072 | DRIVE APPARATUS FOR ELECTRIC MOTOR AND AIR CONDITIONER - A drive apparatus for an electric motor includes an inverter, an inverter substrate, a wire connection switching unit, a control unit, and an alternating-current wire electrically connected at one end to the inverter and at the other end to one end of the windings of an electric motor. The drive apparatus for an electric motor includes an alternating-current wire electrically connected at one end to the alternating-current wires and electrically connected at the other end to one end of the wire connection switching unit, and an alternating-current wire electrically connected at one end to the other end of the wire connection switching unit and electrically connected at the other end to the other end of the windings of the electric motor. The drive apparatus for an electric motor includes a noise suppression unit provided at least on the alternating-current wires to suppress noise that occurs in the alternating-current wire. | 2020-06-11 |
20200186073 | DRIVING DEVICE, AIR CONDITIONER, AND DRIVING METHOD - A driving device includes a connection switching unit to switch a connection state of coils between a first connection state and a second connection state in which a line voltage is lower than in the first connection state, a controller to control a motor and the connection switching unit, and a rotation speed detector to detect a rotation speed of the motor. When the connection state of the coils is the first connection state and the rotation speed detected by the rotation speed detector becomes higher than or equal to a first rotation speed, the controller causes the motor to rotate at a second rotation speed higher than the first rotation speed, and then causes the connection switching unit to switch the connection state of the coils from the first connection state to the second connection state. | 2020-06-11 |
20200186074 | MOTOR CONTROL METHOD, POWER CONVERSION DEVICE, MOTOR MODULE, AND ELECTRIC POWER STEERING DEVICE - A motor control method includes acquiring n-phase currents, where n is an integer of three or more, of a first inverter, a GND current of the first inverter, n-phase currents of a second inverter, and a GND current of the second inverter, generating a first fault signal indicating presence or absence of a shunt resistor fault in the first inverter based on the n-phase currents and GND current of the first inverter and generating a second fault signal indicating presence or absence of a shunt resistor fault in the second inverter based on the n-phase currents and GND current of the second inverter, referring to a table representing a relationship between a set of levels of the first fault signal and the second fault signal and control modes and selecting one of the control modes, and controlling a motor in accordance with the selected control mode. | 2020-06-11 |
20200186075 | POWER CONVERSION DEVICE, MOTOR MODULE, AND ELECTRIC POWER STEERING DEVICE - A power conversion device includes a first inverter and a control circuit that controls on/off operations of switches in the first inverter and diagnoses disconnection failures of n-phase windings where n is an integer of three or more. The control circuit generates a control signal to turn on one low-side switch of a first specific phase among n low-side switch in the first inverter, turn off the remaining n−1 low-side switches, and turn off all n high-side switches, supplies the control signal to the n low-side switches and the n high-side switches in a state where a neutral point of a motor is provided, measures n-phase voltages that change depending on patterns of disconnection failures of the n-phase windings, and diagnoses a disconnection failure based on the measured n-phase voltages by referring to a table associating the patterns of the disconnection failures with n-phase voltage levels. | 2020-06-11 |
20200186076 | Inverter Device and Electric Motor Device Using Same - The object of the invention is to provide an inverter device and an electric motor device using the same to shorten a dead time. Thus, an inverter device is provided, which includes: a switching element including a control terminal and a pair of main terminals; a control circuit configured to output a control signal which indicates whether to instruct an ON state of the switching element; a decision circuit configured to output a decision signal which indicates a state of the switching element based on a voltage between the main terminals of the switching element; and a drive circuit configured to control the ON state or an OFF state of the switching element based on the control signal and the decision signal. | 2020-06-11 |
20200186077 | ELECTRICAL SYSTEM FOR VEHICLES HAVING OVERVOLTAGE PROTECTION - An electrical system for a vehicle can include a power supply and one or more electric motors comprising one or more electric motor controllers operatively connected to the power supply to selectively receive electrical energy from the power supply to provide electrical energy to one or more electric motors. The one or more electric motor controller can have one or more switches and operatively connected between the power supply and the one or more electric motors. The electric motor controller can be configured to modify the electrical path between the power supply and the electric motor using the one or more switches to cause at least one of a shunt to the power supply or a shunt to the electrical motor drives in an overvoltage state. The system can also include an electrical load operatively connected to the power supply. The electrical motor controller can be configured to provide overvoltage protection to the electrical load in the overvoltage state without secondary overvoltage protection circuitry between the power supply and the electrical load. | 2020-06-11 |
20200186078 | PHOTOVOLTAIC MODULE CONNECTION MECHANICAL PART - This application provides a connection mechanical part of a photovoltaic module. The connection mechanical part includes: a first connection assembly and a second connection assembly, wherein the first connection assembly and the second connection assembly each include a connection part, a mounting part and a hinge mounting part between the connection part and the mounting part; the first connection assembly and the second connection assembly are hinge-connected to each other by using their respective hinge mounting parts; the connection part of the first connection assembly is disposed opposite to the connection part of the second connection assembly; and a tensioning device is further disposed between the first connection assembly and the second connection assembly, where the connection parts of the first connection assembly and the second connection assembly are attached or detached by adjusting the tensioning device, to connect the connection mechanical part to the photovoltaic module. | 2020-06-11 |