34th week of 2022 patent applcation highlights part 69 |
Patent application number | Title | Published |
20220271596 | ROTATING ELECTRIC MACHINE AND METHOD OF MANUFACTURING ROTATING ELECTRIC MACHINE - In a rotating electric machine that includes an armature with an armature coil, the armature coil is formed by winding an electrical conductor wire. The electrical conductor wire includes a plurality of element wires in a bundled state and an insulating coat covering the bundled element wires. Each of the element wires includes an electrical conductor through which electric current flows, and a fusing layer that covers a surface of the electrical conductor. In the bundled state of the element wires, the fusing layers of the element wires are in contact with and fused to one another. Between adjacent parts of the electrical conductor wire wound to form the armature coil, there are formed gaps due to differences in straightness between different parts of the electrical conductor wire. The gaps are filled with a filler. | 2022-08-25 |
20220271597 | BUS BAR UNIT, STATOR, AND MOTOR - A bus bar assembly includes a bus bar holder and bus bars each including a main line portion extending in a plane perpendicular or substantially perpendicular to a center axis in a posture in which a plate surface is oriented in an axial direction, and a connection terminal portion connected to an end portion of the main line portion. When viewed in the axial direction as a symmetry axis, the main line portion of the first U-phase bus bar and the main line portion of the second U-phase bus bar, the main line portion of the first V-phase bus bar and the main line portion of the second V-phase bus bar, and the main line portion of the first W-phase bus bar and the main line portion of the second W-phase bus bar, each have a shape line-symmetric to each other. | 2022-08-25 |
20220271598 | MOTOR - A motor includes a drive source assembly including a first wiring, a rotation detector including a second wiring, and a motor housing. The motor housing includes a first motor housing that accommodates at least a portion of the drive source assembly, and a second motor housing that accommodates at least a portion of the rotation detector. The first motor housing includes a first penetration portion that radially penetrates the circumferential wall portion of the first motor housing and is open to one axial side, and the second motor housing includes a second penetration portion that radially penetrates the circumferential wall portion of the second motor housing and is open to another axial side. The first wiring is lead out to the outside of the first motor housing via the first penetration portion, and the second wiring is lead out to the outside of the second motor housing via the second penetration portion. | 2022-08-25 |
20220271599 | CONNECTION STRUCTURE FOR A STATOR OF A DRIVE MOTOR - A connection structure of a stator of a drive motor is configured to allow coils to be wound in a plurality of slots provided in a stator core and to connect the coils withdrawn from the slots. The coils are wound in the slots to form first-type structures and second-type structures configured such that withdrawal directions of three-phase (U-, W- and V-phase) withdrawal lines and N-phase withdrawal lines withdrawn from the slots of the first-type structures are opposite to withdrawal directions of three-phase (U-, W- and V-phase) withdrawal lines and N-phase withdrawal lines withdrawn from the slots of the second-type structures. The first-type structures and the second-type structures are disposed symmetrically to each other with respect to a reference line formed to divide the slots in half. | 2022-08-25 |
20220271600 | MANUFACTURING METHOD OF BUS BAR UNIT, BUS BAR UNIT, AND MOTOR - A method of manufacturing of the bus bar assembly includes preparing a mold, positioning a bus bar and a shield in the mold, and molding a bus bar holder. The positioning includes inserting first positioning pins into bus bar through holes to cause the first positioning pins to hold the bus bar, providing the shield in the mold in a state where a lower surface of the shield and a distal end of the first positioning pin are in contact with each other, bringing a second positioning pin into contact with an upper surface of the shield and positioning the shield in a vertical direction, and bringing a third positioning pin extending downward from a lower surface of an upper mold into contact with an upper surface of the bus bar to position the bus bar in the vertical direction. | 2022-08-25 |
20220271601 | ELECTRIC MACHINE ROTOR SLEEVE - An electric machine comprising a stator ( | 2022-08-25 |
20220271602 | MOTOR - An electrical discharging device electrically connects a shaft of a motor and a housing. A plate portion of the housing has an opening through which the shaft is inserted and expands in a radial direction. A cover member is disposed on the plate portion and covers the electrical discharging device. A seal member is disposed between the shaft and the plate portion in the opening. The through hole is disposed in the plate portion and/or the cover member. The electrical discharging device is accommodated in an accommodation space surrounded by the plate portion and the cover member. The accommodation space is connected to the outside through the through hole. | 2022-08-25 |
20220271603 | MOTOR - A shaft of a motor includes a first shaft having a tubular shape extending in an axial direction, a lid portion disposed in one axial end portion of the first shaft, a second shaft extending on one axial side from the lid portion, a first shaft through hole penetrating the first shaft in a radial direction, and a second shaft through hole communicating with an inside of the first shaft and an external space of the shaft. The lid portion and the second shaft have conductivity. The second shaft through hole is disposed on one axial side with respect to the first shaft through hole. The second shaft is in contact with an electrical discharging device that electrically connects the shaft and the housing of the motor. | 2022-08-25 |
20220271604 | ELECTRIC MACHINE ASSEMBLY HAVING END FRAME COOLING - An electric machine assembly includes a shaft configured to rotate about an axis and an end frame coupled about the shaft such that the shaft rotates relative to the end frame. The end frame includes an end surface and a plurality of pins that extend axially from the end surface. The electric machine assembly also includes a fan coupled to the shaft such that rotation of the shaft causes rotation of the fan to facilitate cooling the plurality of pins. | 2022-08-25 |
20220271605 | MOTOR UNIT - A motor unit includes a bearing rotatably holding a shaft, and a housing accommodating a rotor, a stator, and the bearing. The housing has an opening, a cover closing the opening and fixed to the housing, and an annular member that has an annular shape when viewed from the axial direction and is provided independently from the bearing. The cover includes an accommodation portion accommodating the annular member, one or more ribs disposed radially outward of the accommodation portion when viewed from the axial direction, and one or more fixing points fixed to the housing. The one or more ribs extend outward from the accommodation portion. When viewed from the axial direction, for at least one of the ribs, the fixing point is formed on an extension line extending outward from the rib in a direction in which the rib extends. | 2022-08-25 |
20220271606 | MOTOR AND DRIVING MEMBER - A motor and a driving member are provided. The motor has a rotor centered on and rotatable along a central axis and having a shaft and a bearing holding the shaft to be rotatable; a stator radially opposite to the rotor; a coil winding around the stator; a bearing holder; a bus bar holder on one or the other side of the bearing holder in an axial direction; a substantially cylindrical housing having an opening on a top side in the axial direction. The rotor, the stator, the bearing holder, and the bus bar holder are in the housing. A power bus bar and a signal bus bar are integrally formed on the bus bar holder which axially pushes against and is fixed to the bearing holder; a circuit board and a sensor are between the holders. This structure reduces an axial dimension of the motor and miniaturizes the motor. | 2022-08-25 |
20220271607 | ELECTRIC MOTOR - An electric motor includes a stator, a rotor having a rotating shaft, first and second bearings each having an outer ring, balls, and an inner ring, and spaced apart axially from each other, a preload washer including a shaft section having a preset fixed length in the axial direction, and an elastically-deformable portion extending from one end portion of the shaft section to be elastically deformable, the preload washer applying a preset intensity of preload to the inner ring of the first or second bearing, and a coupling member screwed into an end portion of the rotating shaft and elastically deforming the preload washer in the axial direction. This structure may result in preventing an excessive preload from being applied to the bearing and allowing a preset preload to be stably maintained when thrust is applied. | 2022-08-25 |
20220271608 | Motor Housing and Method for Producing a Motor Housing - A motor housing for an electric motor may have an inner part having a hollow-cylindrical base body and at least one rib arranged on the outside of the base body and a casing slipped over the inner part and contacting the at least one rib. A cooling channel may be formed between the inner part and the casing. | 2022-08-25 |
20220271609 | ELECTRICAL MACHINE WITH COOLED BUSBARS - The present invention relates to an electrical machine ( | 2022-08-25 |
20220271610 | COMPRESSOR DEVICE - Compressor device provided with:
| 2022-08-25 |
20220271611 | MOTOR DEVICE - A motor device includes a motor body, a case that houses the motor body, a printed circuit board that controls the drive of the motor body and is supported by the case, and a ground bus bar that is arranged between the motor body and the printed circuit board and connects the motor body and ground of the printed circuit board. | 2022-08-25 |
20220271612 | ELECTRIC MOTOR - The disclosure relates to an electric motor having a base motor module and an electronic module. The electronic module is electrically and mechanically connected to the base motor module and comprises a printed circuit board and an electronics housing. The electronics housing forms two supporting surfaces, with which the printed circuit board can be brought into contact. | 2022-08-25 |
20220271613 | MOTOR CONTROL DEVICE - A motor control device includes a board that is provided at an end of a motor including winding groups of two systems and controls supply of electric power to the winding group independently for each system. The board includes two areas that are partitioned by a boundary line passing through the center of the motor when viewed in an axial direction of the motor. A power supply terminal connector, an inverter circuit, and a motor terminal connector are sequentially arranged along the boundary line when viewed in the axial direction of the motor. The motor terminal connector is provided such that a straight line perpendicular to a direction in which motor terminals are arranged and the boundary line form an acute angle. | 2022-08-25 |
20220271614 | MOTOR - A motor includes an electrical discharging device including a conductive member in contact with a region of the outer surface of a shaft extending in the axial direction along the rotation axis parallel to the horizontal direction. When viewed from the axial direction, the electrical discharging device is disposed on one side and the other side in a direction perpendicular to the axial direction and parallel to the horizontal direction with respect to a contact portion between the shaft and the conductive member, or is disposed on a vertically obliquely upper side with respect to the contact portion. The electrical discharging device is further disposed on one side and the other side in the above-described parallel direction with respect to the rotation axis or is disposed on the vertically obliquely upper side with respect to the rotation axis when viewed from the axial direction. | 2022-08-25 |
20220271615 | ELECTRIC MACHINE ASSEMBLY HAVING A TERMINAL BOX - An electrical machine assembly including a housing, a shroud, and a terminal box coupled to the housing. The terminal box includes a base having an outer wall extending therefrom, wherein the outer wall includes a distal edge that is correspondingly shaped with the housing such that the outer wall engages with the housing and with the shroud to form a seal. | 2022-08-25 |
20220271616 | ELECTRIC MACHINE ASSEMBLY HAVING A ROTATABLE TERMINAL BOX - An electric machine assembly includes a housing having a first plurality of housing openings and a second plurality of housing openings. The electric machine assembly also includes a terminal box removably coupled to the housing, wherein the terminal box includes a base having a first plurality of base openings and a second plurality of base openings. The base is symmetrical and reversible in orientation between a first orientation and a second orientation. | 2022-08-25 |
20220271617 | ELECTRIC MACHINE ASSEMBLY HAVING A WIRE GUIDING STRUCTURE - An electric machine assembly includes a housing defining an inner cavity and an electrical component positioned within the cavity. The electric machine assembly also includes a mid-frame positioned within the cavity and configured to separate the cavity into a first compartment and a second compartment. The mid-frame includes a guide structure for guiding a plurality of wires through the second compartment toward the electrical component. | 2022-08-25 |
20220271618 | ELECTRIC MOTOR - An electric motor of a pump drive of a motor vehicle, more particularly of an oil pump, having a rotor, which comprises a motor shaft mounted to rotate about an axis of rotation. The motor shaft is coupled by means of a freewheel to a motor support, the freewheel being held on the motor support by means of a securing device. Further disclosed is a pump drive of a motor vehicle. | 2022-08-25 |
20220271619 | Outer Rotor Assembly and Brushless Motor - The disclosure provides an outer rotor assembly and a brushless motor. The outer rotor includes a housing, a rotating shaft, a fan, and a magnetic tile assembly. The housing includes a side wall and an end wall, the side wall and the end wall are of an integrated structure, and a shaft hole is formed in a center of the end wall. One end of the rotating shaft extends into the housing and penetrates out of the shaft hole, and the rotating shaft is fixedly connected with the shaft hole. The fan is fixedly connected with one end of the rotating shaft penetrating out of the shaft hole. And the magnetic tile assembly is disposed within the housing and fixedly connected to the side wall. | 2022-08-25 |
20220271620 | ELECTRIC CIRCUIT FOR POWERING CENTRIFUGAL PUMPS - An electric circuit for powering centrifugal pumps includes a power panel of the pump which is connected to an alternating-current distribution network and to the said pump by a power line provided with a timer that regulates the operating time of the pump; which further comprises a solar module comprising photovoltaic panels and a solar micro-inverter connected in parallel to the alternating-current bus of the pump, which converts the direct current generated by the solar module into alternating current and injects same into the pump power line, with the same values of voltage, frequency and phase-angle deviation as the current from the distribution network, when the timer activates the operation of the pump. | 2022-08-25 |
20220271621 | ELECTRIC MACHINE ASSEMBLY HAVING AN INTERNAL FAN - An electric machine assembly includes a housing defining an inner cavity, a rotatable shaft extending through the inner cavity, and at least one electrical component positioned within the cavity. The electric machine assembly also includes an internal fan coupled to the shaft and positioned within the inner cavity such that rotation of the fan provides a cooling airflow to the at least one electrical component. | 2022-08-25 |
20220271622 | GENERATOR COOLING STRUCTURE OF ENGINE - A generator cooling structure of an engine including a crankshaft and a generator arranged on one end side of the crankshaft includes a crankcase that houses the crankshaft and a generator cover that is coupled to the crankcase in order to house the generator. The generator has a rotor fixed to the crankshaft and a stator fixed in position with respect to the generator cover. A cooling medium supply passage, which is arranged in the direction of the one end side of the crankshaft in the stator in order to supply the cooling medium to the stator, is provided. | 2022-08-25 |
20220271623 | ELECTRIC MACHINE ASSEMBLY HAVING A ROTOR FRAME TO PROVIDE COOLING - A rotor assembly for use with an electric machine assembly includes a plurality of magnets and a rotor frame having a pair of opposing end plates and a plurality of circumferentially spaced longitudinal members extending between the opposing end plates. The opposing end plates and the plurality of longitudinal members combine to define a plurality of openings that are each configured to receive a magnet of the plurality of magnets. At least one of the opposing end plates includes a plurality of fins extending therefrom in a direction opposite the longitudinal members. | 2022-08-25 |
20220271624 | POWER TOOL AND ELECTRONIC CONTROL DEVICE - A power tool includes a main body and a battery pack. The main body includes a housing and a motor, a switch assembly, and an electronic control device. The electronic control device is electrically connected to the switch assembly and the motor. The electronic control device includes an electronic control assembly, a mounting base, and a connecting assembly. The electronic control assembly includes a power circuit board. The power circuit board is provided with an opening. The connecting assembly conductively connects the battery pack to the electronic control assembly, connects to the mounting base via the opening, and mates with the mounting base to form a mounting space in which the electronic control assembly is mounted. | 2022-08-25 |
20220271625 | Rotor for an Electric Machine and Electric Machine Having a Rotor | 2022-08-25 |
20220271626 | Rotor for an Electric Machine and Electric Machine Having a Rotor | 2022-08-25 |
20220271627 | Rotor for an Electric Machine and Electric Machine Having a Rotor | 2022-08-25 |
20220271628 | ROTATING ELECTRIC MACHINE AND DRIVE APPARATUS - A rotating electric machine includes: a rotor rotatable about a central axis; a stator; a temperature detection unit measuring the temperature of the stator; and a refrigerant supply unit supplying a refrigerant to the stator. The stator includes a stator core and a coil assembly held by the stator core. The coil assembly includes a coil end protruding from the stator core in an axial direction, coil lead wires, and at least one neutral point member electrically connecting ends of the coil lead wires and arranged at the coil end. The temperature detection unit is arranged in a temperature detection region being a partial region in a circumferential direction of the coil end. The refrigerant supply unit has a refrigerant supply hole that opens toward the temperature detection region. At least a part of the at least one neutral point member is arranged in the temperature detection region. | 2022-08-25 |
20220271629 | ROTOR COIL SHAPING DEVICE - An object of the present invention is to provide a rotor coil shaping device which can improve the production efficiency and reduce the labor intensity of workers. The device comprises a locating piece and a press piece located above the locating piece. A locating boss, extending upward and having a width the same as that of a rotor slot opening of a rotor, is provided in the middle of the locating piece in a longitudinal direction, a stop boss extending upward is provided on at least one of front and rear ends of the locating piece, and upper shaping blades each having an arc groove opening downward are fixed on a lower side of the press piece. | 2022-08-25 |
20220271630 | STATOR OF AN ELECTRIC MOTOR AND ELECTRIC MOTOR | 2022-08-25 |
20220271631 | METHOD FOR PRODUCING A STACK OF METAL SHEETS, STACK OF METAL SHEETS, MACHINE COMPONENT, ELECTRIC MOTOR AND DRIVE TRAIN - In order to provide a method by means of which stacks of laminations can be produced in a simple and efficient manner, it is provided that the method comprises the following: coating one or more laminations with a bonding agent; bonding a plurality of laminations to form a sheet metal laminate by means of a first activation of the bonding agent; dividing the sheet metal laminate to produce a plurality of sheet metal laminate units and/or separating out a plurality of sheet metal laminate units from the sheet metal laminate; and bonding the plurality of sheet metal laminate units to form a stack of laminations by means of a second activation of the bonding agent, one or more parameters differing from one another in the first activation and the second activation. | 2022-08-25 |
20220271632 | METHOD FOR PRODUCING A STATOR FOR AN ELECTRICAL MACHINE - A method for producing a stator for an electrical machine, the stator having a substantially hollow-cylindrical stator core, which has a plurality of grooves spaced apart in a circumferential direction, the method including: providing at least one strip-shaped winding unit having a first winding conductor with a plurality of groove portions running straight in a transverse direction that are mutually parallel; fastening a first end of the winding unit to a lateral surface of a mandrel; winding the winding unit onto the mandrel such that it is bent around the lateral surface of the mandrel spirally; inserting the mandrel, together with the winding unit, into a cavity in the stator core; and unwinding the winding unit from the mandrel with the groove portions of the winding unit being inserted into the grooves of the stator core. | 2022-08-25 |
20220271633 | MANUFACTURING METHOD OF ROTATING ELECTRIC MACHINE - A manufacturing method of a rotary electric machine provided with an armature winding including: a collection process that bundles a plurality of wires each including a conductor through which current flows and a fused layer covering a surface of the conductor, and makes fused layers contact with each other to be fused therebetween; a coating process that covers the plurality of wires bundled by the collection process with a tape-shaped insulation film to form a conductive wire; and a winding process that multiply winds the conductive wire formed by the coating process to form the armature winding. | 2022-08-25 |
20220271634 | INSULATOR AND MOTOR - Insulators are formed of a resin material using injection molding and provided at an end portion in an axial direction of a cylindrical stator included in a motor. Each of the insulators includes a wall portion that is formed in a cylindrical shape; a plurality of winding drum portions that consecutively extend from the wall portion so as to be along one end surface in an axial direction of the wall portion from an inner peripheral surface of the wall portion toward an inner side in a radial direction of the wall portion; and a plurality of opening portions that are formed between the respective winding drum portions, which are adjacent in the circumferential direction of the wall portion. A gate mark, which indicates an injection location of the resin material, is formed on the one end surface in the axial direction of the wall portion. | 2022-08-25 |
20220271635 | METHOD FOR PRODUCING A STACK OF METAL SHEETS FOR AN ELECTRIC MOTOR - To provide a method by means of which stacks of metal sheets can be produced in an easy and efficient way, it is proposed that the method comprises the following: coating one or more metal sheets with a bonding substance; bonding multiple metal sheets to form a sheet-metal laminate by a first activation of the bonding substance; cutting up the sheet-metal laminate to produce multiple sheet-metal laminate units and/or cutting out multiple sheet-metal laminate units from the sheet-metal laminate; and bonding the multiple sheet-metal laminate units to form a stack of metal sheets by a second activation of the bonding substance, wherein the bonding substance comprises a resin material and an elastomer material. | 2022-08-25 |
20220271636 | SMART GENERATOR - The present disclosure relates to a smart generator and, more particularly, to a smart generator in which two stators are used for a single rotor, the gap between an N-pole and an S-pole of the first and second stators is decreased, and a load that is an interference electromagnetic force affecting a rotor wire is minimized, whereby more power can be generated from a less force. | 2022-08-25 |
20220271637 | LOW VIBRATION ELECTRIC MOTOR - An electric motor having low vibration and/or noise comprises a rotor or stator comprising permanent magnets each comprising at least two pole pairs, with an internal flux gap within the permanent magnets between adjacent internal pole pairs. The internal flux gap between the internal pole pairs may be similar to an external pole to pole physical spacing between adjacent poles of adjacent magnets. The motor is suitable for use in for example a laundry washing machine or dryer or washer-dryer. | 2022-08-25 |
20220271638 | CLAW POLE ROTOR FOR AN ELECTRICAL MACHINE - A claw pole rotor for an electrical machine is provided, the claw pole rotor comprising a first claw pole component having a first yoke-shaft component to which at least two first claw pole fingers are connected, and a second claw pole component having a second yoke-shaft component to which at least two second claw pole fingers are connected, wherein the first claw pole fingers extend from a first side of the claw pole rotor towards a second side of the claw pole rotor, the second claw pole fingers extend from the second side towards the first side, and a magnet is arranged between the first yoke-shaft component of the first claw pole component and the second yoke-shaft component of the second claw pole component. | 2022-08-25 |
20220271639 | CLAW POLE ROTOR FOR AN ELECTRICAL MACHINE AND ROTOR ARRANGEMENT FOR AN ELECTRICAL MACHINE - A claw pole rotor ( | 2022-08-25 |
20220271640 | LINEAR RECIPROCATING DRIVE APPARATUS FOR SECONDARY BATTERY MANUFACTURING PROCESS - Disclosed is a linear reciprocating drive apparatus for a secondary battery manufacturing process, the linear reciprocating drive apparatus including a cylinder having therein a column-shaped accommodation portion and including first and second air vents respectively disposed at one side and the other side of the cylinder and configured to communicate with the accommodation portion, a piston disposed in the cylinder and configured to reciprocates between one end and the other end of the accommodation portion, the piston being configured to divide the accommodation portion into two spaces respectively communicating with the first and second air vents, a driving shaft connected to the piston and extending to the outside of the cylinder, the driving shaft being configured to linearly reciprocate as the piston reciprocates in a longitudinal direction of the accommodation portion, and a shock absorbing unit configured to absorb shock by using a repulsive force between magnetic elements. | 2022-08-25 |
20220271641 | SYSTEMS AND METHODS FOR GENERATING ELECTRICITY - Provided herein is a system for generating electrical current comprising a transducer subsystem having an upper end and a lower end, the transducer subsystem generating electrical current responsive to objects being dropped individually from an array of the objects at the upper end of the transducer subsystem to the lower end of the transducer subsystem under the influence of gravity; and a return subsystem for receiving the objects of the array and for returning the objects of the array from the lower end to the upper end using upthrust through a fluid body, wherein the return subsystem is configured to permit physical interaction by a user with the return subsystem, wherein a physical interaction with the return subsystem by the user can cause the return subsystem to move fluid collectively in respect of multiple, or in respect of all, objects of the array. | 2022-08-25 |
20220271642 | CONTROL METHOD AND CONTROLLER FOR SIMO SWITCHING CONVERTERS - There is described a method of controlling a single inductor multiple output, SIMO, switching converter, the method comprising (a) counting, for each output of the multiple outputs of the SIMO switching converter, a period of time during which an output voltage at the respective output is below a corresponding individual threshold value, (b) identifying that output among the multiple outputs of the SIMO switching converter for which the counted period of time is longest, and (c) connecting the identified output to the single inductor of the SIMO switching converter to supply current from the single inductor of the SIMO switching converter to the identified output. Furthermore, a corresponding controller is described. | 2022-08-25 |
20220271643 | POWER CIRCUIT AND CONTROL METHOD - A power circuit is provided that includes at least a first power supply unit and a second power supply unit. The first power supply unit includes a first input section, a first AC voltage generator, a first rectification-and-smoothing section, and a first isolation section that is provided between the first AC voltage generator and the first rectification-and-smoothing section. The second power supply unit includes a second input section, a second AC voltage generator, a second rectification-and-smoothing section, and a second isolation section that is provided between the second AC voltage generator and the second rectification-and-smoothing section. The power circuit is configured such that the second AC voltage generator generates an AC voltage having a phase obtained by inverting a phase of the AC voltage generated by the first AC voltage generator. | 2022-08-25 |
20220271644 | LOAD LINE CIRCUIT AND ELECTRONIC DEVICE - This application provides a load line circuit and an electronic device, where the load line circuit is applied to the electronic device. A voltage value of a feedback voltage provided by the load line circuit to a switch-mode power supply is linearly and positively correlated with each of a voltage value of a first voltage and a current value of a first current, where the first voltage is a voltage provided to a load circuit, and the first current is a current provided to the load circuit. Through disposition of the load line circuit, the switch-mode power supply can implement a load line function. | 2022-08-25 |
20220271645 | Multiple Outputs Universal Serial Bus Travel Adaptor and Control Method Thereof - A multiple output universal serial bus travel adaptor includes: at least one AC-DC converter for converting an AC power to a first DC power; at least one DC-DC converter for providing a second DC power according to the first DC power; plural switches which are coupled to the AC-DC converter and/or the DC-DC converter to provide the first DC power or the second DC power to corresponding connectors according to operation signals; and a protocol controller configured to generate the operation signals according to at least one of the following parameters: a) the types of the connectors; b) whether there is a mobile device connected with the connectors; c) a first command from the mobile device; d) the power consumed by the mobile devices; e) the currents flowing through the connectors; and f) the voltages at the connectors. | 2022-08-25 |
20220271646 | Switching Sequence Controlled Current Steering For Stacked Half Bridge Converters - A stacked half bridge converter may be configured to provide an AC output voltage from either a DC or an AC input voltage. The switching devices of the converter may be operated according to a plurality of switching sequences, each switching sequence including one or more switching patterns, each switching pattern including one or more switching states of the switching devices. The switching sequences, patterns, and states may be selected to improve operation of the converter, by regulating the voltage at a neutral point of the converter to reduce ripple, increase switching efficiency, protect the switching devices from overvoltages, and the like. | 2022-08-25 |
20220271647 | DIRECT CURRENT POWER SUPPLY DEVICE AND AIR CONDITIONER - A direct current power supply device includes a rectifier circuit that rectifies alternating current power supplied from an alternating current power supply and converts the alternating current power into direct current power, a charge storage unit that includes a function of storing a charge, a charger that charges the charge storage unit, and a heat sink. The charger includes a positive-side switching element, a negative-side switching element, a positive-side backflow prevention diode, and a negative-side backflow prevention diode. The positive-side switching element, the negative-side switching element, the positive-side backflow prevention diode, and the negative-side backflow prevention diode are discrete semiconductor elements. The negative-side backflow prevention diode is a full mold package element. The positive-side switching element, the negative-side switching element, and the positive-side backflow prevention diode are elements that are not full mold packages. | 2022-08-25 |
20220271648 | ELECTRICAL ASSEMBLY - Embodiments of the disclosure can include various electrical assemblies. In one embodiment, an electrical assembly can include
| 2022-08-25 |
20220271649 | SELF-ADJUSTING DC/DC CONVERTER SOFT-START MECHANISM - A soft-start circuit includes an error amplifier, a reference voltage ramp circuit, and a minimum current clamp circuit. The error amplifier is configured to generate a difference voltage representing a difference of a feedback voltage and a reference voltage ramp. The reference voltage ramp circuit is configured to generate the reference voltage ramp. The minimum current clamp circuit is configured to clamp an output of the error amplifier to a predetermined minimum voltage. | 2022-08-25 |
20220271650 | CONTROL CIRCUIT FOR POWER CONVERTER APPARATUS PROVIDED WITH PFC CIRCUIT OPERATING IN CURRENT CRITICAL MODE - A control circuit is provided for a power converter apparatus including a PFC circuit with an inductor and operating in a current critical mode. The control circuit includes: a first detector circuit that detects an inductor current, amplifies a voltage corresponding to a detected current with a gain, and outputs the voltage as a detected voltage; a comparator that compares the detected voltage with a reference voltage, and outputs a comparison result signal; a second detector circuit that detects an input voltage; and a third detector circuit that detects an output voltage. The control circuit calculates a reference voltage for making a delay on detecting zero value of the inductor current be substantially zero, based on the input voltage, the detected output voltage, a preset delay time, an inductance, a conversion coefficient on current-to-voltage converting, a power supply voltage, and the gain, and outputs the reference voltage to the comparator. | 2022-08-25 |
20220271651 | Totem-Pole Bridgeless Power Factor Correction Device and Power Supply - The present disclosure relates to a totem pole bridgeless power factor correction device and a power supply system. The device includes a power factor correction module. The power factor correction module includes a first transistor, a second transistor, a third transistor, a fourth transistor, an inductor and a control module for generating a zeroth control signal in the first time period to control the third transistor and the fourth transistor to be in an off state, performing a zero-crossing detection on an AC voltage in the first time period, generating a first control signal to control a conduction state of the first transistor and the second transistor before the AC voltage crosses zero, and generating a second control signal to control the conduction state of the first transistor and the second transistor after the AC voltage crosses zero. The embodiments of the present disclosure can enable the device to smoothly transition the current when the device is at the zero-crossing point, and improve the stability and efficiency of the device. | 2022-08-25 |
20220271652 | POWER CONVERTER CONTROL USING CURRENT RECONSTRUCTION OF POWER FACTOR CORRECTION INDUCTOR CURRENT - Embodiments of a power converter are disclosed. In an embodiment, the power converter comprises a power factor correction (PFC) stage circuit, an emulation circuit and a controller. The PFC stage circuit is configured to produce an output signal on an output terminal. The PFC stage circuit includes an inductor coupled between a rectifier and the output terminal and a switch coupled to the inductor. The emulation circuit is connected to the PFC stage circuit to generate an emulated current that corresponds to current through the inductor of the PFC stage circuit. The emulated current is generated based on a voltage signal at a node between the inductor and the output terminal and a sensed current at a sense resistor connected to the rectifier. The controller is connected to the emulation circuit to receive the emulated current and generate a control signal for the switch of the PFC stage circuit based on the emulated current. | 2022-08-25 |
20220271653 | POWER FACTOR CORRECTION CIRCUIT - The invention relates to a power factor correction (PFC) circuit ( | 2022-08-25 |
20220271654 | INTEGRATED CIRCUIT AND METHOD OF SYNCHRONOUS RECTIFICATION CONTROL OF BRIDGELESS POWER FACTOR CORRECTION CIRCUIT - A method may include detecting an output voltage of the output smoothing capacitor in the bridgeless interleaved power factor correction circuit of a critical mode, comparing the detected output voltage with a reference voltage, controlling the first and the second half-bridge circuits included in the bridgeless interleaved power factor correction circuit of the critical mode to be on and off based on an error signal between the output voltage and the predetermined reference voltage, measuring ON time of a synchronous rectification switch operation of the first half-bridge circuit by measuring a time period between OFF timing of an active switch of the first half-bridge circuit and output of a differentiation signal generated by a differentiation circuit included in the bridgeless interleaved power factor correction circuit of the critical mode; and assigning the measured time to next ON time of the synchronous rectification switch operation of the second half-bridge circuit. | 2022-08-25 |
20220271655 | LLC RESONANT CONVERTER AND CONTROL METHOD THEREOF - A control method for an LLC resonant converter includes the following steps. Firstly, the LLC resonant converter is enabled. Then, the sonant converter is operated in a first modulation mode, so that the magnitude of the output voltage is greater than or equal to an intermediate voltage value. When the magnitude of the output current is greater than zero, a determining step is performed to determine whether the magnitude of the output voltage is greater than a reference voltage value. When the determining result is satisfied, the LLC resonant converter is operated in the first modulation mode. When the determining result is not satisfied, the LLC resonant converter is operated in a second modulation mode, so that the magnitude of the output voltage is lower than the intermediate voltage value. | 2022-08-25 |
20220271656 | CONVERTOR BETWEEN CONTROL VOLTAGES AND SUPPLY VOLTAGES - A voltage conversion apparatus for converting from a control voltage to a supply voltage and an apparatus for converting from a supply voltage to a control voltage are described. The supply voltage is designed to power, through a coaxial cable, a data communication device, and the coaxial cable is suitable for transmitting said supply voltage signal and at least one data signal associated with said data communication device. A conversion means of the conversion apparatus is configured to convert from the control voltage to the supply voltage comprising conversion means configured to convert from a first value of control voltage Vp | 2022-08-25 |
20220271657 | MULTIPLE-STAGE POWER CONVERSION VIA REGULATED AND UNREGULATED CONVERSION - An apparatus includes a first power converter and a second power converter. The first power converter converts an input voltage into a first output voltage; the second power converter converts the first output voltage into a second output voltage that powers a load. The second power converter includes a switched-capacitor converter combined with a magnetic device. The switched-capacitor converter provides capacitive energy transfer; the magnetic device provides magnetic energy transfer. Additionally, the second power converter provides unregulated conversion of the first output voltage into the second output voltage via the capacitive energy transfer and the magnetic energy transfer. To maintain the magnitude of the second output voltage within a desired range or setpoint value, the first power converter regulates a magnitude of the first output voltage based on comparison of a magnitude of the second output voltage with respect to a desired setpoint reference voltage. | 2022-08-25 |
20220271658 | POWER CONVERTER INCLUDING SWITCH COMPONENTS HAVING DIFFERENT SAFE OPERATING AREAS - A power converter including switch components having different safe operating areas is provided. A first terminal of a first high-side switch is coupled to a common voltage. A first terminal of a first low-side switch is connected to a second terminal of the first high-side switch. A second terminal of the first low-side switch is grounded. A first terminal of a second low-side switch is connected to a node between the second terminal of the first high-side switch and the first terminal of the first low-side switch. A second terminal of the second low-side switch is grounded. A safe operating area of the second low-side switch is larger than a safe operating area of the first low-side switch. After the first low-side switch is turned off, the second low-side switch is turned off Before the first low-side switch is turned on, the second low-side switch is turned on. | 2022-08-25 |
20220271659 | APPARATUS AND METHOD FOR MEASURING LOAD CURRENT WITH HIGH RESOLUTION - A method of measuring a load current provided to a load of a switching converter includes obtaining a first reference voltage defining a peak of an inductor current passing through an inductor of the switching converter, generating a pulse based on the first reference voltage and an on-time of at least one power switch of the switching converter, generating an output signal by filtering the pulse, and setting a second mode from a first mode when a value of the load current is less than a first threshold value based on the output signal. The generating of the pulse further includes generating the pulse having a width extended in proportion to the on-time in the second mode. | 2022-08-25 |
20220271660 | APPARATUS AND METHOD FOR MEASURING LOW LOAD CURRENT - An apparatus configured to measure a load current provided to a load of a switching converter includes a pulse generation circuit configured to generate a control pulse based on a power switch driving signal of the switching converter, a reference current generation circuit configured to generate a reference current based on the control pulse, a clock generation circuit configured to generate a clock signal based on the control pulse and the reference current, and a clock counter configured to count the number of cycles of the clock signal during a switching period of the switching converter. The reference current generation circuit is configured to adjust the reference current to compensate for a leakage current generated in the clock generation circuit during the switching period. | 2022-08-25 |
20220271661 | POWER CONVERTER AND CONVERTING METHOD - A power converter includes a power stage circuit, a ramp generator circuit, and a control circuit. The power stage circuit is configured to generate an output signal according to an input signal and a control signal. The ramp generator circuit is configured to generate a ramp signal according to the control signal, the input signal, and the output signal. The control circuit is configured to generate the control signal according to the output signal, a reference signal, and the ramp signal. | 2022-08-25 |
20220271662 | POWER CONVERTER AND CONVERTING METHOD - A power stage circuit generates an output signal according to an input signal and a control signal. A ramp generator circuit generates a ramp signal according to the control signal, the input signal, and the output signal. A calculation circuit generates a calculation signal according to the output signal and a reference signal. The calculation circuit operates in a first mode when the power converter operates in a light loading state, and the calculation circuit operates in a second mode when the power converter operates in a normal state. A control circuit generates the control signal according to the calculation signal and the ramp signal. The control circuit includes a comparator circuit and a control signal generator. The comparator circuit generates a comparison signal according to the calculation signal and the ramp signal. The control signal generator generates the control signal according to the comparison signal. | 2022-08-25 |
20220271663 | POWER SUPPLY SYSTEM - A power supply system includes a voltage application source, and a switched mode power supply having an output coupled to the voltage application source through a first path and through a second path different from the first path. A first node is coupled to the output of the switched mode power supply, the switched mode power supply being configured to couple the first node to the voltage application source through the first path in a first operating mode and through the second path in a different second operating mode. A digital regulator is coupled to the first node. A digital circuit is coupled to an output of the digital regulator. An analog regulator is coupled to the first node and an analog circuit coupled to an output of the analog regulator. | 2022-08-25 |
20220271664 | RDSON-BASED CURRENT SENSING SYSTEM - A device includes a current mirror, a switch, first and second current paths, first and second buffers, a variable resistor, a temperature-sensing circuit, and a controller. The first current path is coupled between the current mirror's input and the switch. The switch switches between ground and a transistor based on a control signal. The second current path is coupled between a first current mirror output and ground. The first buffer is coupled to a second current mirror output. The second buffer is coupled to the variable resistor, which is coupled to the first buffer. The temperature-sensing circuit provides a device temperature to the controller, which is coupled to a first buffer output and determines a first adjustment to the first and second current paths and a second adjustment to the variable resistor based on the device temperature. | 2022-08-25 |
20220271665 | Rectifier Circuit And Power Reception Control Device - A rectifier circuit includes: a first input line to which a first alternating-current voltage is supplied and that is wired along a first direction; a second input line to which a second alternating-current voltage is supplied and that is wired along the first direction on a second direction side of the first input line; a first output line that is configured to output a first rectified voltage and is wired along the second direction; a second output line that is configured to output a second rectified voltage and is wired along the second direction on a first direction side of the first output line; a first rectifier element that is arranged corresponding to an intersection of the first input line and the first output line; a second rectifier element that is arranged corresponding to an intersection of the second input line and the first output line; a third rectifier element that is arranged corresponding to an intersection of the first input line and the second output line; and a fourth rectifier element that is arranged corresponding to an intersection of the second input line and the second output line. | 2022-08-25 |
20220271666 | TRANSIENT RESPONSE IMPROVING SYSTEM AND METHOD WITH PREDICTION MECHANISM OF ERROR AMPLIFIED SIGNAL - A transient response improving system and method with a prediction mechanism of an error amplified signal are provided. A current sensor circuit senses a current flowing through a first resistor connected between an adapter and an electronic device. When the current is larger than a current threshold, a predicting circuit calculates a target voltage level based on a common voltage and a voltage of the battery and instantly pulls up or down a voltage level of the error amplified signal to the target voltage level. A comparator compares the error amplified signal with a ramp signal to output a comparison signal. A controller circuit controls a driver circuit to switch a high-side switch and a low-side switch according to the comparison signal. | 2022-08-25 |
20220271667 | THREE-LEVEL BOOST CIRCUIT AND MULTIPLE-OUTPUT PARALLEL SYSTEM - A three-level Boost circuit is provided. The three-level Boost circuit includes: an input capacitor, an inductor, a first switch, a second switch, a first freewheeling diode, a second freewheeling diode, a flying capacitor, a balance capacitor, a charging diode, a clamp diode, a discharging diode and an output series capacitor bank. The output series capacitor bank includes multiple output capacitors connected in series, and has a first node and a second node; a potential of the first node is higher than a potential of a cathode of the charging diode, and a potential difference between a cathode of the second freewheeling diode and the second node does not exceed a withstand voltage of the second freewheeling diode | 2022-08-25 |
20220271668 | SCALABLE MULTI-PHASE SWITCHING CONVERTER AND CONVERTER MODULE AND CONTROL METHOD THEREOF - A scalable multi-phase switching converter includes: converter modules, each including: a loop control unit, which generates a basic trigger pulse according to a feedback signal in master operation mode; and a switching control unit, which determines an operation mode and a corresponding phase serial order according to a setting signal received by a setting pin in a setting mode, and generates a multi-phase trigger pulse signal at a trigger pin according to the basic trigger pulse in master operation mode. The switching control unit receives the multi-phase trigger pulse signal at the trigger pin in slave operation mode. The switching control unit generates an ON-trigger pulse according to the multi-phase trigger pulse signal and the corresponding phase serial order. An ON-period determination unit generates a conduction control pulse according to the ON-trigger pulse to control a corresponding inductor. The trigger pins of the converter modules are coupled to each other. | 2022-08-25 |
20220271669 | SEMICONDUCTOR DEVICE - A semiconductor device in which an increase in circuit area is inhibited is provided. The semiconductor device includes a first circuit layer and a second circuit layer over the first circuit layer; the first circuit layer includes a first transistor; the second circuit layer includes a second transistor; a gate of the second transistor is electrically connected to one of a source and a drain of the first transistor; a source and a drain of the second transistor are electrically connected to the other of the source and the drain of the first transistor; and a semiconductor layer of the second transistor contains a metal oxide. | 2022-08-25 |
20220271670 | CONVERTER WITH HOLD-UP CIRCUIT AND INRUSH-CONTROL CIRCUIT - A holdup circuit includes a high-voltage generation circuit that outputs a high voltage and a holdup capacitor charging/discharging circuit that includes a holdup capacitor that is charged by the high voltage output by the high-voltage generation circuit. An inrush control circuit includes a constant-current source that includes a first transistor and a second transistor. During start-up, input current flows through the second transistor, and after start-up and during normal operation, the input current flows through the first transistor. | 2022-08-25 |
20220271671 | OUTPUT LOAD IDENTIFICATION METHOD AND THE APPARATUS INCORPORATING THE SAME - An isolated multiple-output power supply with a function of detecting the presence or absence of a load at an output port is disclosed. The power supply includes a first voltage source for providing a first voltage at a first node; a first diode having a cathode coupled to the first output port, and an anode coupled to the first node for receiving the first voltage; a second voltage source for providing a second voltage at a second node; a second diode having a cathode coupled to a second output port, and an anode coupled to the second node for receiving the second voltage; and a bridging circuit having two terminals respectively connected to the first and the second output ports. When the load is not present at the first output port, the bridging circuit pulls up an output voltage at the first output port to reverse bias the first diode. | 2022-08-25 |
20220271672 | QUASI-RESONANT AUTO-TUNING CONTROLLER - A quasi-resonant auto-tuning controller includes a zero-voltage crossing detection circuit and a valley tuning finite-state machine having a look-up table. The zero-voltage crossing detection circuit receives a reference voltage and receives an auxiliary signal from an auxiliary winding. The zero-voltage crossing detection circuit produces a comparison signal having pulses when the auxiliary signal is less than the reference voltage. The valley tuning finite-state machine produces a divided pulse width based on the comparison signal, stores the divided pulse width of each pulse in the look-up table, determines, from the comparison signal, that the auxiliary signal is less than the reference voltage, waits a time period corresponding to the divided pulse width stored in the look-up table if the auxiliary signal is less than the reference voltage, and produces a valley point signal after waiting the time period. | 2022-08-25 |
20220271673 | SYSTEM AND METHOD FOR POWER CONVERSION - A polarity-selectable high voltage direct current power supply including a first drive assembly that transforms a first low voltage DC input into a first medium voltage alternating current output; a first HV output assembly that transforms the first LV AC output into a first HV DC output, wherein the first HV output assembly defines a first input stage; a polarity selector coupled between the second output junction of the first drive assembly and the first and second input stages of the first HV output assembly, the polarity selector operable between a first configuration and a second configuration; wherein in the first configuration the first HV DC output has a positive polarity; and wherein in the second configuration the first HV DC output has a negative polarity. | 2022-08-25 |
20220271674 | RESONANT HALF-BRIDGE FLYBACK POWER CONVERTER WITH SKIPPING CYCLES AND CONTROL METHOD THEREOF - A resonant half-bridge flyback power converter includes: a first transistor and a second transistor which form a half-bridge circuit; a transformer and a resonant capacitor connected in series and coupled to the half-bridge circuit; and a switching control circuit configured to generate a first driving signal and a second driving signal to control the first transistor and the second transistor respectively for switching the transformer to generate an output voltage. The first driving signal is configured to magnetize the transformer. The second driving signal includes at most one pulse between two consecutive pulses of the first driving signal. The switching control circuit generates a skipping cycle period when an output power is lower than a predetermined threshold. A resonant pulse of the second driving signal is skipped during the skipping cycle period. The skipping cycle period is increased in response to the decrease of the output power. | 2022-08-25 |
20220271675 | FLYBACK POWER CONVERTER HAVING EMULATED DEMAGNETIZED SIGNAL AND SWITCHING CONTROL CIRCUIT AND CONTROL METHOD THEREOF - A flyback power converter includes: a first transistor switching a transformer for generating a primary switching current and an output voltage; and a second transistor generating a circulated current to achieve ZVS (zero voltage switching) of the first transistor; wherein the flyback power converter actively forces at least one switching cycle to be operated in a DCM (discontinuous conduction mode) operation when the primary switching current is determined to have been operating in a non-DCM operation for a predetermined number of switching cycles. The flyback power converter generates a demagnetized signal which emulates the demagnetized time of the transformer for controlling the second transistor during the non-DCM operation. The flyback power converter calibrates the demagnetized signal according to the demagnetized time during the actively fored DCM operation. | 2022-08-25 |
20220271676 | HALF-BRIDGE FLYBACK POWER CONVERTER AND CONTROL METHOD THEREOF - A half-bridge flyback power converter: a first transistor, a second transistor and a third transistor which form a half-bridge circuit. The first transistor is turned on for generating a negative circulated current for achieving zero voltage switching of the second transistor. The second transistor is turned on for magnetizing a transformer. The third transistor is turned on during a demagnetized time period to generate an output voltage. The physical size of the first transistor is smaller than physical size of the third transistor. | 2022-08-25 |
20220271677 | SYSTEM AND METHOD TO EXTEND LOW LINE OPERATION OF FLYBACK CONVERTERS - An amplifier system may include at least one input source, a flyback converter including a pair of complementary metal oxide silicon field effect transistor (MOSFETs), a controller integrated circuit (IC) having a quasi-resonant (QR) pin and configured to provide a biased drive current to the flyback converter, and a transition component arranged at the controller IC and configured to correct pulse width modulation at the IC to ensure the voltage at a transition pin of the IC is above a predefined threshold during a resonant transition. | 2022-08-25 |
20220271678 | POWER EQUIPMENT FOR REMOTE CONTROL - A power facility for remote control includes: an analog sensing value reception unit that collects an internal analog sensing value of the power facility; a digital conversion unit that converts the analog sensing value into digital information; and a communication unit that transmits the digital information to an external remote control device by using one optical path. Therefore, by allowing a plurality of analog sensing values from the power facility to be transmitted to the remote control device by using one optical path, transmission efficiency can be increased, and by converting a plurality of analog sensing values of the power facility into digital information and transmitting the digital information with an asynchronous frame, the plurality of analog sensing values can be efficiently transmitted through one optical path without a separate synchronous signal. | 2022-08-25 |
20220271679 | Remotely Programmable Multi Mode Bidirectional Power Converter - The present invention is directed to Bidirectional Multimode Power Converter which employs a high frequency dynamically varying amplitude modulation and voltage steering method to convert the source AC or DC voltages to output AC or DC voltages with programmable output voltage levels, output voltage frequency and duration. The Bidirectional Multimode Power Converters of the present invention support: inrush current control, turning off the idle converter, line voltage brown out protection, soft start, high pre-charge voltage generation, soft shut down of converter, dimming operation, programmable time of the day operation and operation for specified duration of time. The Bidirectional Multimode Power Converters of the present invention support coupling of multiple power sources for bidirectional power conversion. | 2022-08-25 |
20220271680 | HYBRID BIDIRECTIONAL DC TO DC CONVERTER - A hybrid bidirectional DC to DC converter allows a direct boost ratio in the high voltage to low voltage direction, but not in the low to high direction. Switches are used to tie the commons of the transformers to ground and power rail to allow the formation of a full-bridge with remaining phases to alter the boost ratio so that transformers do not need to be connected in series in the high voltage to low voltage direction. The switches are on a connection shared by the transformers and are configured to allow a dynamic changeover of the secondary windings in a multi-phase delta-wye configuration from a series nature into a parallel nature such that a 2× boost of winding ratio is reduced to a 1× boost of winding ratio depending on whether the input voltage is above or below a threshold input voltage. | 2022-08-25 |
20220271681 | ARC FURNACE POWER SUPPLY WITH CONVERTER CIRCUIT - A power supply system for an electric arc furnace includes an AC input connectable to an electrical grid and an AC output for supplying at least one power electrode of the arc furnace. The power supply system further includes a converter circuit interconnected between the AC input and the AC output. The converter circuit includes at least one converter cell with a capacitor and semiconductor switches for series connecting the capacitor between a circuit input and a circuit output of the converter circuit. | 2022-08-25 |
20220271682 | INVERTER MODULE AND INVERTER - An inverter module and an inverter are provided. The inverter module includes at least two capacitors and at least one power unit group. The at least one power unit group each comprises one or more power units. The capacitors are connected in series and parallel to form a capacitor head terminal, a capacitor end terminal and a capacitor midpoint, where capacitance between the capacitor midpoint and the capacitor head terminal is the same as capacitance between the capacitor midpoint and the capacitor end terminal. Positive poles of DC sides of the power units are equidistantly connected with the capacitor head terminal, negative poles of the DC sides of the power units are equidistantly connected with the capacitor end terminal, and midpoints of the DC sides of the power units are equidistantly connected with the capacitor midpoint. | 2022-08-25 |
20220271683 | POWER CONVERSION DEVICE - A power conversion device including: a circuit board including a first ground constituting a ground of a first circuit and a second ground formed to be electrically separated from the first ground; a second circuit in which a joining portion is formed; a metal base plate provided between the second circuit and the circuit board and provided with an opening portion corresponding to the joining portion; and a housing that stores the circuit board, the second circuit, and the metal base plate and is electrically connected to the second ground of the circuit board and the metal base plate, in which the joining portion of the second circuit is disposed corresponding to the second ground via the opening portion of the metal base plate. | 2022-08-25 |
20220271684 | POWER CONVERTER - A power converter includes a full-bridge circuit, power converting circuit, transformer, and controller. The full-bridge circuit includes a series-connected unit made of first and second switches and a series-connected unit made of third and fourth switches and is connected to power transmitting terminals. The power converting circuit is connected to power receiving terminals. The transformer includes power transmitting coil and power receiving coil. The power transmitting coil is connected to full-bridge circuit. The power receiving coil is connected to power converting circuit. The controller turns on the first and second switches alternately and also the third and fourth switches alternately. A resistive load is connected to the power receiving terminals. The controller serves to determine a phase difference between the time when first switch is turned on and the time when third switch is turned on to decrease with a decrease in measured voltage developed at the power receiving terminals. | 2022-08-25 |
20220271685 | MODULAR INTELLIGENT COMBINED WIND POWER CONVERTER AND CONTROL METHOD THEREOF - The present invention discloses a modular intelligent combined wind power converter and a control method thereof. The modular intelligent combined wind power converter comprises separate bridge arm power units, wherein a plurality of the bridge arm power units are connected in parallel to form a high-capacity bridge arm power module, three bridge arm power modules form a three-phase full-controlled bridge power module, and the three-phase full-controlled bridge power module comprises an electric reactor, a capacitor, a fuse and a circuit breaker to form a basic converter module, and the basic converter module forms a high-capacity wind power converter through a modular intelligent combination method. | 2022-08-25 |
20220271686 | AN ELECTRICAL GENERATOR AND METHOD OF GENERATING AN ELECTRICAL CURRENT - The present invention provides an electrical generator comprising one or more graphene sheets, each graphene sheet comprising first and second electrical contacts and having a surface extending between the first and second electrical contacts arranged to contact a flow of an ion-containing fluid, wherein each surface is provided with a polymer coating having a thickness of less than 100 nm. | 2022-08-25 |
20220271687 | METHOD FOR OPERATING AN ELECTROMECHANICAL ELEMENT, ACTUATOR, DRIVE DEVICE AND MOTOR - A method for operating an electromechanical element, comprising the following steps: | 2022-08-25 |
20220271688 | SHORT-TRAVEL NANOSCALE MOTION STAGE AND METHOD FOR MEASURING THERMALLY-RELATED HYSTERESIS DATA - A short-travel nanoscale motion stage and a method for measuring thermally-related hysteresis data are provided. A stator unit of a left two-pole electromagnet and stator units of two inchworm motors are fixed on a right side surface of a left foundation frame, and an active unit of the left two-pole electromagnet and actives of the two inchworm motors are fixed on a left side surface of a stage moving component. An active unit of a right two-pole electromagnet is fixed on a right side surface of the stage moving component, while a stator unit of the right two-pole electromagnet is fixed on a left side surface of a right foundation frame. The stage moving component is fixedly mounted on a guide sleeve of an aerostatic guideway. Each of the stator units of the left and right two-pole electromagnets has an eddy current sensor and a hall sensor fixed therein. | 2022-08-25 |
20220271689 | CONTROL DISTRIBUTION ARCHITECTURE - A system for providing electric motor control to a plurality of motor loads. The system comprises a plurality of motor controllers that are configurable into different arrangements of motor controllers. The system further comprises a central controller that is operable to individually set a phase and/or frequency of respective PWM carrier signals for the motor controllers, wherein the central controller is configured to set the phase and/or frequency of the PWM carrier signals for the motor controllers within a respective arrangement of motor controllers differently depending on the configuration of the motor controllers within the arrangement. | 2022-08-25 |
20220271690 | DEVICE FOR DRIVING A PLURALITY OF MOTORS AND ELECTRIC APPARATUS INCLUDING THE SAME - A device for driving a plurality of motors, including an inverter connected to a DC terminal; a multi-phase motor connected to the inverter; and a single-phase motor serially connected to the multi-phase motor, wherein a number of frequency of current input to the multi-phase motor when driving the single-phase motor and the multi-phase motor at the same speed is smaller than the number of frequency of current input to the multi-phase motor when driving the single-phase motor and the multi-phase motor at different speeds. Accordingly, a plurality of motors can be simultaneously driven at different speeds, by using a single inverter. | 2022-08-25 |
20220271691 | METHOD FOR DETERMINING A MOVEMENT OF A ROTOR - A method for determining a movement of a rotor of an electric motor, comprises supplying a drive signal to a drive coil of the electric motor, sensing a coil current of the drive coil, detecting current ripples of the sensed coil current caused by the rotor of the electric motor crossing ripple generating positions, inferring the movement of the rotor from the detected ripples, braking the motor by reducing the drive signal supplied to the drive coil from an initial signal value to zero according to a braking curve specifying a non-zero fall time during which the drive signal is reduced from the initial signal value to zero. The braking curve is adapted so that the rotor does not cross a ripple generating position after the drive signal has been reduced to zero. | 2022-08-25 |
20220271692 | MOTOR WINDING MONITORING AND SWITCHING CONTROL - An apparatus includes a controller. To control current through a motor winding, the controller monitors a magnitude of current supplied through the motor winding. The controller compares the magnitude of current to a threshold value. In response to detecting that the magnitude of current crosses the threshold value, the controller terminates a flow of the current through the motor winding. In one application, termination of the current through the motor winding supports more efficient use of energy to drive the motor winding. For example, via the controller, terminating the current through the motor winding to prevent the current from flowing in a reverse direction through the motor winding. | 2022-08-25 |
20220271693 | SYSTEMS AND METHODS FOR CONTROLLING STEPPING MOTOR - The present disclosure relates to systems and methods for controlling a stepping motor. A method may include determining a driving voltage based on a function, wherein the function includes a predetermined electric current and operating parameters of the stepping motor; and driving the stepping motor to work based on the driving voltage via an H-bridge. | 2022-08-25 |
20220271694 | RESISTIVE LOAD BANK SYSTEMS - A load bank system is configured for providing a minimum load for a generator. The load bank system includes a resistive load bank, a relay, and a load bank controller. The resistive load bank is configured to provide a resistive load to a generator. The relay is configured to selectively engage the resistive load of the resistive load bank to the generator. The load bank controller is operable to control the relay such that the resistive load is engaged when a real load coupled to the generator is below a threshold load value. The load bank system may be arranged within a housing of the generator. | 2022-08-25 |
20220271695 | SYSTEM AND METHOD FOR PROVIDING GRID-FORMING CONTROL FOR A DOUBLE-FED WIND TURBINE GENERATOR - A method for controlling a wind turbine power system connected to an electrical grid includes determining, via a controller, at least one non-linear magnetizing parameter of a double-fed wind turbine generator of the wind turbine power system. The method also includes developing, via the controller, a model of the non-linear magnetizing parameter(s) of the double-fed wind turbine generator. Further, the method includes using, via the controller, the model in a stator voltage regulator of the double-fed wind turbine generator to provide grid-forming control of the double-fed wind turbine generator. | 2022-08-25 |