34th week of 2020 patent applcation highlights part 61 |
Patent application number | Title | Published |
20200266647 | BATTERY SAFETY MECHANISM FOR BATTERY FAULT CONDITIONS - A battery charger circuit associated with a portable electronic device is disclosed. The battery charger circuit comprises a charging circuit configured to charge a battery and a discharging circuit configured to discharge the battery. The battery charger circuit further comprises a battery fault detection circuit configured to detect a battery fault condition, based on monitoring one or more battery parameters. In some aspects, the battery charger circuit further comprises a battery charge control circuit configured to selectively activate the discharging circuit, in order to discharge the battery, and deactivate the charging circuit, in order to suspend charging the battery during the discharge of the battery, when the battery fault condition is detected. | 2020-08-20 |
20200266648 | METHOD FOR CHARGING BATTERY AND ELECTRONIC DEVICE APPLYING THE METHOD - An electronic device is provided. The electronic device includes a housing, a battery disposed inside the housing, a power management module for controlling charging of the battery, and at least one processor operationally connected with the battery and the power management module. The at least one processor is provided to direct a plurality of charging intervals while charging the battery, each of the plurality of charging intervals having a target voltage, to alternately charge the battery in a first mode and in a second mode through the power management module, wherein a charging current flowing into the battery is uniformly maintained in the first mode and a voltage of the battery is uniformly maintained in the second mode, and to switch the first mode to the second mode when the voltage of the battery reaches the target voltage in the first mode. | 2020-08-20 |
20200266649 | ELECTRONIC DEVICE FOR ADAPTIVE POWER MANAGEMENT - An electronic device includes: a location measurement circuitry; a rechargeable battery; a memory configured to store instructions; and at least one processor. The at least one processor may be configured to execute the instructions to: monitor a usage pattern of the battery while the electronic device operates in a first power management state; acquire, based on determining that the usage pattern of the battery is different from a reference pattern derived from a model, information on a location in which the battery is estimated to be charged and information on a time at which the battery is estimated to be charged using the model; and switch, partially based on the information on the location and the information on the time, the first power management state to a second power management state based on a second maximum driving frequency lower than the first maximum driving frequency. | 2020-08-20 |
20200266650 | ELECTRONIC DEVICE AND METHOD FOR CONTROLLING WIRELESS CHARGING - An electronic device includes a wireless charging coil, a wireless charging circuit, a power management module, a battery, and a processor. The processor is configured to control to receive first information from an external electronic device while transmitting wireless charging power to the external electronic device through the wireless charging circuit, to control, in response to receiving the first information, the wireless charging circuit to stop transmission of the wireless charging power and operate in a state of transmitting and receiving a ping signal, to check whether a predetermined time has elapsed since the transmission of the wireless charging power is stopped, and to control, in response to elapse of the predetermined time, the wireless charging circuit to retransmit the wireless charging power to the external electronic device. Other embodiments are possible. | 2020-08-20 |
20200266651 | SYSTEM AND METHODS FOR CHARGING A DEVICE - Systems and methods for supplying power to an electronic device are provided. A first power limit is received from the electronic device at a transmitter. The transmitter input power is set to correspond to the first power limit. The transmitter supplies power corresponding to the transmitter input power to the electronic device to initiate charging, and an electrical value associated with the transmitter input power is monitored. During monitoring, the first electrical value is compared to a predefined second electrical value, the power supply to the receiver is discontinued based on the monitoring, and the transmitter input power is adjusted to correspond to a second power limit based on the comparison. | 2020-08-20 |
20200266652 | ELECTRICAL POWER SYSTEM INCLUDING AN ACTIVE RECTIFIER - An example electrical power system includes a bus current controller configured to adjust a direct current (DC) provided on a DC bus, and a plurality of high energy storage modules (HESMs). Each HESM includes at least one energy storage device, and includes a DC/DC converter configured to control charging of the at least one energy storage device from the DC bus and discharging of the at least one energy storage device onto the DC bus. A system controller is configured to control the bus current controller and the plurality of DC/DC converters. A method of controlling an electrical power system is also disclosed. | 2020-08-20 |
20200266653 | SYSTEM AND METHOD OF ADAPTIVE HIGH VOLTAGE TRANSIENT CONTROL FOR EXTERNAL LOADS - A vehicle includes first loads, a power source, and a processor coupled to the power source. Each of the first loads is configured to generate a fault signal indicative of an occurrence of an action performed by said first load to mitigate a voltage transient event. The processor is configured to, in response to a second different load being electrically coupled to the power source: control a voltage available within the power source based on calibration parameters; and in response to receiving the fault signal, adjust at least one of the calibration parameters. | 2020-08-20 |
20200266654 | CHARGE CONTROLLER AND CHARGE CONTROLLING METHOD - A charge controller includes an estimation unit and a charge controlling unit. The estimation unit estimates a next charge to be performed on a high-voltage battery provided in a vehicle. The charge controlling unit executes, before the next charge of the high-voltage battery which is estimated by the estimation unit is started, charging from the high-voltage battery to a low-voltage battery provided in the vehicle. | 2020-08-20 |
20200266655 | Portable Charging Device Built into a Watch and Watch Band - A portable charging device is built into a watch and watch band. A foldable flexible solar panel array is stored under the watch band in a thin flat condition allowing the user to wear the solar panel and watch band together. The charging electronics and rechargeable battery are located within the watch housing under a standard watch assembly. A charging cable can be extended from the side of the watch housing and can be plugged into a smart phone or other electronic device for the purpose of recharging. The solar panel array can be folded out in a lit environment to recharge the battery located within the watch housing. In this way, a person can recharge their phone or other electronic device while on the go by plugging it into the wearable watch and watch band. | 2020-08-20 |
20200266656 | POWER SUPPLY DEVICE AND METHOD FOR PROVIDING POWER SUPPLY DEVICE - A power supply device includes a combination of one power supply module of a plurality of power supply modules having different power supply performances and one controller of a plurality of controllers having different functions, which are selectively combined. Each of the plurality of power supply modules includes a power supply module side connection portion common to the plurality of power supply modules, and each of the plurality of controllers includes a controller side connection portion common to the plurality of controllers and connectable to the power supply module side connection portion, to allow the one power supply module and the one controller are selectively combined. | 2020-08-20 |
20200266657 | COMMUNICATION OF FAULT EVENT INFORMATION BETWEEN POWER SUPPLY DEVICES - The present disclosure relates to communicating fault event information between power supply devices. In an example, a fault event communication system can include a comparator that can be coupled to a node that can have a shared bus voltage established by current sharing circuitry. The comparator can compare the shared bus voltage to a reference voltage and output a fault alert signal based on the comparison to alert a respective power supply device that another power supply device is experiencing a fault event. The system can include logic circuitry that can initiate a timer for a time interval in response to receiving the fault alert signal. The logic circuitry can determine a type of fault event at the respective power supply device based on the fault alert signal and duration of time that has elapsed since initiating the timer. | 2020-08-20 |
20200266658 | HYBRID DC POWER INSTALLATION FOR DATA CENTER LOAD - A method of operating a power generation system, such as a fuel cell power generation system, includes providing a first electrical power up to a threshold amount of power to a load from at least one power module via a plurality of DC/DC converters and a DC power bus, determining whether electrical power from a utility is available, and providing a second electrical power from the at least one power module to a rectifier path via a plurality of DC/AC inverters in response to determining that the electrical power from the utility is available. The second electrical power includes electrical power generated by the at least one power module in excess of the threshold amount of electrical power. | 2020-08-20 |
20200266659 | SYSTEM CONTROL DEVICE AND METHOD OF SYSTEM CONTROL - The present invention includes a hunting determination unit configured to determine whether hunting has occurred or not for each of control devices in a power transmission and distribution system based on a control history of the control devices, a time constant calculation unit configured to calculate an adjustment time constant in which a time constant of the control device having state information indicating a state of the control device, with a high significance level, is increased, when the hunting determination unit determines that the hunting has occurred in one or more of the control devices, and a time constant transmission unit configured to transmit the adjustment time constant to the control device. | 2020-08-20 |
20200266660 | MODULAR WIRELESS POWER BANK SYSTEM - A modular wireless power bank system providing supplemental power for an electronic device includes: a power bank with a battery, a charge surface for wireless magnetic induction coupling, a power bank electromechanical connector and a means for coupling with the electronic device, aligned for power transfer via wireless magnetic induction coupling; and a desk stand comprising: a power bank socket configured to receive the power bank, the power bank socket including a stand electromechanical connector aligned to mate with the power bank electromechanical connector upon insertion of the power bank into the power bank socket; and an electronic device cradle configured to receive the electronic device; the power bank socket and the electronic device cradle aligned to receive the power bank and the electronic device either separately or while the power bank is coupled to the electronic device via the attachment means. A corresponding vehicle mount may also be included. | 2020-08-20 |
20200266661 | ELECTRONIC DEVICE FOR WIRELESS CHARGING EXTERNAL DEVICE - An electronic device includes a housing including a first plate, a second plate spaced apart from the first plate and facing the first plate, and a side member at least partially surrounding a space between the first plate and the second plate, a display located in the space and visible through the first plate, a conductive coil parallel to the second plate and disposed between the display and the second plate, a wireless charging circuit electrically connected to the conductive coil, and a processor operationally connected with the display and the wireless charging circuit. The processor receives a power control signal from an external device, applies a charging current to the conductive coil, based on the power control signal, senses whether a specified event occurs while the charging current is applied, and when the specified event occurs, transmits information for setting a charging power corresponding to the specified event to the external device. | 2020-08-20 |
20200266662 | WIRELESS CHARGING DEVICE OF GAME MACHINES - A wireless charging device of game machines, which comprises a game machine, provided with at least a table top, and the table top is provided with at least a concave tray; at least a wireless charging device, located in the concave tray of the table top; there is a panel at the top of the table top of the game machine, and the panel covers the wireless charging device in the tray; the wireless charging device comprises a wireless charging part and a charging support connected to each other. Thereby, the 3C product can be charged without a USB cable, it can be directly placed on the table top with a wireless charging device of game machine for wireless charging. | 2020-08-20 |
20200266663 | Flameless Candle, Magnetic Resonance Charging System, And Associated Methods - The present invention provides a flameless candle, a flameless candle charging system, and methods for using the flameless candle charging system. The charging system generally includes a plurality of flames candles, a charging tray having a tray hollow body with a planar outwardly facing surface on which the plurality of flameless candles may be placed, and a metallic plate positioned within the hollow body, and a remote control for selectively operating the plurality of candles and including a body having a magnet positioned therein. The remote control may be magnetically attached to the charging tray by positioning the magnet in proximity to said metallic plate. | 2020-08-20 |
20200266664 | PACKAGED SEMICONDUCTOR DEVICES WITH WIRELESS CHARGING MEANS - A semiconductor device package is provided, including a semiconductor device, a molding material, and a conductive slot. The molding material surrounds the semiconductor device. The conductive slot is positioned over the molding material and having an opening and at least two channels connecting the opening to the edges of the conductive slot. | 2020-08-20 |
20200266665 | WIRELESS CHARGING TRANSMITTER AND WIRELESS POWER TRANSFER METHOD - One or more disclosed embodiments relate to a wireless charging transmitter and a wireless power transfer method. The wireless charging transmitter includes a first charging pad including a first wireless power circuit, a second charging pad including a second wireless power circuit, and a controller configured to, in response to detection of a first electronic device being placed on the first charging pad, transfer power at a first designated wireless power level via the first wireless power circuit, in response to detection of a second electronic device being placed on the second charging pad, transmit a first command for decreasing power transferred to the first electronic device, and transfer, upon receipt of a first request for power at a second designated wireless power level from the first electronic device in response to the first command, the power at the second designated wireless power level via the first and second wireless power circuits. The disclosure may further include other various embodiments. | 2020-08-20 |
20200266666 | ELECTRONIC DEVICE FOR WIRELESSLY CHARGING EXTERNAL ELECTRONIC DEVICE - An electronic includes: a housing including a first plate, a second plate, and a side member; a display; a conductive coil parallel to the second plate and disposed between the display and the second plate; a wireless charging circuitry electrically connected to the conductive coil; and a processor operatively connected with the display and the wireless charging circuitry. The wireless charging circuitry receives a signal for wirelessly transferring power to an external electronic device from the processor, receives information about the external electronic device, receives a power control signal from the external electronic device via the conductive coil, applies a charging current of a first frequency to the conductive coil based at least in part on a request signal, increases a frequency of the charging current, compares the increased frequency with a first value, and adjusts a duty cycle of the charging current. | 2020-08-20 |
20200266667 | ELECTRONIC DEVICE FOR WIRELESSLY CHARGING EXTERNAL DEVICE - An electronic device includes a display, a conductive coil, a wireless charging circuit electrically connected to the conductive coil, a power management circuit, a battery; and a processor, wherein the processor may be configured to control the electronic device to: measure a current flowing from the power management circuit to the wireless charging circuit while power is transferred to an external device through the conductive coil, and adjust the power transferred to the external device through the conductive coil based on a part of a power amount preset in a signal requesting addition of power based on a value of the current being between a first threshold value and a second threshold value greater than the first threshold value. | 2020-08-20 |
20200266668 | WIRELESS CHARGING PLATFORMS VIA THREE-DIMENSIONAL PHASED COIL ARRAYS - Methods, systems, and devices are disclosed for wirelessly charging electronic devices. In one aspect, a wireless charging transmitter device includes a three-dimensional coil array electrically coupled to a power source and structured to include two or more coils to produce an electromagnetic field that emanates from the three-dimensional coil array, in which the coils are arranged such that at least two coils are perpendicular to each other to direct the electromagnetic field. The wireless charging transmitter device is operable to wirelessly charge an electronic device by providing the electromagnetic field at a receiver coil of the electronic device to convert the electromagnetic energy to electrical energy to power the electronic device. | 2020-08-20 |
20200266669 | SIMULTANEOUS WIRELESS POWER TRANSMISSION, COMMUNICATION, AND LOCALIZATION - A radio frequency identification (RFID) system may include a plurality of RFID readers and RFID tags. A RFID reader may include an antenna configured to operate at a first frequency and transmit a first beam of a first beam width to the plurality of RFID tags. The RFID antenna may further include an antenna array including a plurality of antennas configured to operate at a second frequency. The antenna array may be configured to transmit a second beam of a second beam width to the plurality of RFID tags. The RFID reader may receive backscatter signals and tag data from the plurality of RFID tags. The RFID reader may locate the plurality of RFID tags based on the backscatter signals and a direction of the second beam. The RFID reader may generate a 3D map of the tag data based on the locations of the plurality of RFID tags. | 2020-08-20 |
20200266670 | ELECTRONIC DEVICE AND METHOD FOR WIRELESSLY TRANSMITTING POWER BASED ON FOREIGN OBJECT DETECTION IN THE ELECTRONIC DEVICE - An electronic device including a coil, a power transmission circuit electrically connected with the coil, a detection circuit, and a control circuit. The control circuit of the electronic device configured to wirelessly output a first signal for identifying an access of a foreign object by first period intervals through the coil using the power transmission circuit, identify a change of the first signal using the detection circuit, wirelessly output the first signal by the first period intervals in response to a detection value of the changed first signal being less than or equal to a first threshold value, and wirelessly output the first signal by a second period intervals longer than the first period intervals in response to the detection value of the changed first signal exceeding the first threshold value. | 2020-08-20 |
20200266671 | RECEIVING COIL AND FOREIGN OBJECT DETECTING APPARATUS IN MULTIPLE CHARGING CONDITION USING PLURALITY OF TRANSMITTING COILS - An apparatus is provided in which electromagnetic field components generated by a transmitting coil is induced to other transmitting coils based on plurality of transmitting coils being driven for multiple wireless charging, for example, wirelessly charging two or more receivers to prevent degradation in performance of detecting a receiving coil and a foreign object during multiple wireless charging. According to the present disclosure, the receiving coil and foreign object detecting apparatus in multiple charging conditions using the plurality of transmitting coils includes an induced signal processor. The induced signal processor can control an amount of voltage and an operation frequency corresponding to the wireless charging coil and can detect a peak and can include a filter to thereby prevent interference of a signal induced from other neighboring transmitting coils. | 2020-08-20 |
20200266672 | Wireless Charging System With Temperature Sensing - A wireless power transmitting device transmits wireless power signals to a wireless power receiving device. To detect foreign objects, the wireless power transmitting device has an array of temperature sensors. The array of temperature sensors may include temperature sensor components such as temperature sensitive thin-film resistors or other temperature sensitive components. A temperature sensor may have thin-film resistors formed on opposing sides of a substrate. The thin-film resistors may be formed from meandered metal traces to reduce eddy current formation during operation of the wireless power transmitting device. Signal paths coupling control circuitry on the wireless power transmitting device to the array of temperature sensors may be configured to extend along columns of the temperature sensors without running along each row of the temperature sensors, thereby reducing eddy currents from loops of signal routing lines. Some temperature sensors may have multiple components coupled to a common temperature sensing pad. | 2020-08-20 |
20200266673 | WIRELESS POWER SYSTEMS INCLUDING DETERMINATION OF CHANNEL TRANSFER FUNCTION FROM BACKSCATTER SIGNALS - Examples described herein utilize a backscatter signal provided by a wirelessly powered device to estimate channel information, (e.g., a channel transfer function) between the wirelessly powered device and a transmitter system. The channel information may be used to optimize MIMO power transfer for linear as well as nonlinear backscatter devices. Examples of die method ‘may shift some or all of the power cost and complexity of coherent channel measurements from the WFD to the transmitters), and allow WPT optimization to milliwatt- or microwatt-class wirelessly powered devices. | 2020-08-20 |
20200266674 | DEVICE AND METHOD FOR PROVIDING USER INTERFACE ACCORDING TO WIRELESS POWER-SHARING - An electronic device including a battery, a wireless interface operatively or electrically connected with the battery, a display, a memory, and a processor, wherein the processor is configured to: detect an event while the electronic device is in contact with or is connected to another electronic device via the wireless interface and wirelessly charging-shares power of the battery with the another electronic device via the wireless interface; turn off a wireless charging-sharing function when the event corresponds to a predetermined condition; provide a user notification about the turning-off of the wireless charging-sharing function via the display; and turn on the wireless charging-sharing function when a state of the electronic device corresponds to a wireless charging-sharing condition. The various embodiments also a method of operating the electronic device. Various embodiments are also possible. | 2020-08-20 |
20200266675 | DATA COMMUNICATION METHOD FOR WIRELESS CHARGING AND ELECTRONIC DEVICE USING SAME - An electronic device is includes battery; coil; wireless charging circuit electrically connected to coil; power management module configured to control charge state of battery by using power supplied from receiving circuit; and processor operatively connected to wireless charging circuit and power management module, wherein processor is configured to request configuration information for performing wireless charging from external device through the wireless charging circuit; determine whether wireless charging is possible, based on a response to the request for configuration information; when the wireless charging is possible, request encrypted authentication information from the external device so as to perform authentication with respect to the external device; when the external device is an unauthenticated device, request the external device to transmit a first predetermined power; and when the external device is an authenticated device, request the external device to transmit a second predetermined power that is higher than the first predetermined power. | 2020-08-20 |
20200266676 | STATOR, MOTOR, COMPRESSOR, AIR CONDITIONING APPARATUS, AND METHOD FOR MANUFACTURING STATOR - A slot includes a coil housing portion having first and second side portions and a bottom portion. A first straight line connects first and second points which are boundaries between the bottom portion and the side portions. A slot opening has third and fourth points closest to the first and second side portions. A second straight line connects the first and third points. A third straight line connects the second and fourth points. A first region is surrounded by the first straight line and the bottom portion. A second region is surrounded by the second straight line and the first side portion, and is surrounded by the third straight line and the second side portion. A third region is surrounded by the three straight lines. Areas A1, A2 and A3 of the three regions and total cross-sectional areas S1, S2, S3 of coils therein satisfy (S1/A1)>(S2/A2)>(S3/A3). | 2020-08-20 |
20200266677 | Rotor Core, Rotor of Rotary Electrical Machine, Rotary Electrical Machine, and Automotive Auxiliary Electrical System - A torque ripple in a rotary electric machine is sufficiently reduced. At least two of the plurality of laminated plates in the rotor core include a magnetic pole having the base formed on the outer peripheral side of the storage space, and a bridge part connected to the magnetic pole. A plurality of magnetic poles are provided in the circumferential direction, and the first space is formed between the bases of a pair of magnetic poles adjacent in the circumferential direction. The q-axis outer peripheral portion, which is located between the pair of circumferentially adjacent magnetic poles and is in contact with the first space, is provided on the inner peripheral side of the base. The base includes the side surface portion which is in contact with the first space, and the protrusion which is provided on the outer peripheral side of the side surface portion and protrudes in the circumferential direction with respect to the side surface portion. The bridge are arranged on the inner peripheral side of the side surface portion. | 2020-08-20 |
20200266678 | COOLING MEANS FOR DIRECT DRIVE GENERATORS - A generator ( | 2020-08-20 |
20200266679 | POWER TOOL - A power tool includes a brush holder with a brush positioned more accurately with respect to a commutator. A grinder as a power tool includes a housing, a stator fixed to the housing, a rotor rotatable relative to the stator and including a commutator and a coil, a brush that comes in contact with the commutator, a brush-holding metal plate having a screw hole and holding the brush, and a screw extending through the screw hole and directly fastened to the housing. | 2020-08-20 |
20200266680 | MOTOR UNIT - A motor unit includes a motor including a rotor arranged to rotate about a motor axis, and a stator arranged opposite to the rotor; a housing arranged to house the motor; an inverter electrically connected to the motor; a busbar arranged to connect the motor and the inverter to each other; and a cover portion. The housing includes a motor housing portion arranged to house the motor, a top wall portion arranged to cover an upper side of the motor housing portion, and a work-use hole portion arranged to pass through the top wall portion. The cover portion is arranged to close an upper opening of the work-use hole portion. The cover portion includes a pressure regulating passage arranged to regulate the pressure in an interior of the housing. | 2020-08-20 |
20200266681 | ROTARY ELECTRIC MACHINE, GENERATOR, AND WIND TURBINE POWER GENERATION FACILITY - A rotary electric machine includes an armature unit including an annular rotor configured to be rotatable around an axis and a stator disposed on a radially outer side of the rotor; an input/output shaft coupled at a first end to an external device and extending along an axial direction of the rotor in a central space formed in a central portion of the rotor; and a coupling device disposed closer to a second end of the input/output shaft than an end of the rotor adjacent to the external device is in the axial direction and connecting the input/output shaft and the rotor so as to be able to transmit a torque. | 2020-08-20 |
20200266682 | ELECTRIC MOTOR BRAKE - An electric motor including a rotor, a stator disposed adjacent to the rotor, and a brake mechanism. The stator is configured to cause a rotational movement of the rotor during operation of the electric motor and the brake mechanism is configured to selectively maintain a stationary rotational position of the rotor against a force exerted by an external source. | 2020-08-20 |
20200266683 | ROTATING DEVICE - A rotating device | 2020-08-20 |
20200266684 | ELECTRIC MOTOR FOR A POWER TOOL - A power tool includes a housing, a battery connection portion supported by the housing, a drive mechanism configured to operate a working element, and a brushless DC motor positioned within the housing and connected to the drive mechanism. The motor includes a rotor, stator surrounding the motor, and an output shaft fixed to the rotor such that movement of the rotor is transmitted to the output shaft. The motor also includes a fan coupled to the output shaft to rotate with the output shaft and the rotor, and a brass bushing fixed to the output shaft to rotate with the rotor and the output shaft relative to the stator. The bushing includes a balancing feature. | 2020-08-20 |
20200266685 | RAIL CAR AXLE GENERATOR - The present application discloses various apparatuses including generators for rail cars and controllers for use with such generators. Methods related to such generators are also disclosed. According to one embodiment a generator that is mountable to a rotatable axle of the rail car is disclosed. The generator can include: a shaft rigidly coupled to the rotatable axle for rotation therewith, a set of magnets coupled to the shaft for rotation, and a stator assembly mounted on one or more bearing assemblies. The stator assembly is independent of a stationary portion of the rail car so as to be moveable relative thereto with movement of the axle. The stator assembly can include: a set of coils supported by the stator assembly and positioned proximate to the set of magnets to generate electricity when the set of magnets rotates; and an electrical conductor to provide the generated electricity to the rail car. | 2020-08-20 |
20200266686 | ROTARY ELECTRIC MACHINE - Provided is a rotating electric machine. Angles formed by tooth center axes of adjacent teeth are defined as tooth pitch angles. Maximum tooth pitch angles are defined as first tooth pitch angles α | 2020-08-20 |
20200266687 | MOTOR UNIT - A motor unit includes a motor including a rotor, a stator radially outside of the rotor; a housing for housing the motor; an oil passage for circulating the oil in the housing space; and a gear portion connected to a shaft of the rotor. The housing includes a motor housing portion defining a motor chamber in an interior, a gear housing portion defining a gear chamber in an interior, and a partition dividing the gear chamber and the motor chamber. The oil passage includes a flow passage arranged in an interior of the housing, and an oil feeding structure on an upper side of the motor to feed the oil to at least one of a stator core or coil ends. The flow passage includes a portion extending along an axial direction to feed the oil to the oil feeding structure. The partition includes the portion of the flow passage. | 2020-08-20 |
20200266688 | CABLE-ACTUATED POSITION SENSORS AND GEAR MOTORS - Cable-actuated position sensors are described that employ multiple block and tackle arrangements to measure displacement of a draw wire or flexible cable. The disclosed sensors are relatively small and inexpensive. The disclosed sensors may also be used as part of a servo motor, or in conjunction with gear motors to provide positional information for operation of the gear motor. | 2020-08-20 |
20200266689 | ELECTRIC MACHINE TEMPERATURE SENSOR - An electric machine includes a stator having hairpin windings with at least first and second phases and a neutral bridge attached to the at least first and second phases. The neutral bridge defines a planar body and a mounting feature extending from an upper surface of the body and cooperating with the body to define an opening. A temperature sensor of the electric machine includes an insertion portion having a sensing element. The insertion portion is received in the opening. | 2020-08-20 |
20200266690 | TRIGGER LOCKOUT WITH DISSIMILAR ACTIONS - A control assembly for selectively controlling actuation of an electric motor arranged to power a hand-held power tool based on combined performance of two dissimilar operator actions and a hand-held power tool including such a control assembly. A switch member may be closed responsive to an enabling action including a first of the two dissimilar operator actions. A throttle control member becomes operable responsive to actuation of the throttle control member past a first movement threshold, i.e. a second dissimilar operator action, while the switch member is in the actuated state. The throttle control member remains repeatedly operable above a second movement threshold, even if the switch member is opened. Actuation of the throttle control member to below the second movement threshold will render the throttle control member non-operable until renewed combined performance of the first and second dissimilar operator actions. | 2020-08-20 |
20200266691 | MANUFACTURING METHOD OF ROTOR FOR ROTARY ELECTRIC MACHINE - A manufacturing method of a core for a rotary electric machine, the method includes inserting a permanent magnet that is not yet magnetized in a magnet insertion hole that is formed in a rotor core; injecting a magnet fixing material in the magnet insertion hole; curing the magnet fixing material by heating the rotor core and the permanent magnet; and magnetizing the permanent magnet before a temperature of the rotor core and the permanent magnet decreases to a normal temperature, after the curing of the magnet fixing material. | 2020-08-20 |
20200266692 | High Force And Low Noise Linear Fine-Tooth Motor - High force and low noise linear fine-tooth motors are described herein. Such motors can include armatures having fine teeth separated by narrow slots such that a ratio of a pitch between teeth and a pitch between permanent magnet poles is less than that of a conventional iron-core linear motor. In one embodiment, such a linear motor can include a first component having an armature including a plurality of iron cores surrounded by coil windings, and a second component having a plurality of permanent magnets with alternating polarity. The plurality of iron cores can be spaced apart from one another by an iron core pitch distance and the plurality of permanent magnets can be spaced apart from one another by a permanent magnet pole pitch distance, and a ratio of the iron core pitch to the magnetic pole pitch can be less than 1.33. | 2020-08-20 |
20200266693 | VOICE COIL MOTOR, CAMERA MODULE, AND ELECTRONIC DEVICE USING THE SAME - A voice coil motor in a camera module with a means of being mounted robustly on a base comprises a casing and the base. The casing is hollow, the casing comprises a top surface and a side wall around the top surface. The base comprises a base portion and projections, the base portion being in contact with the side wall of the casing and engaged with the casing to form a cavity. The side wall is provided with recesses external to the cavity to accept the projections, the projections lending structural reinforcement to the casing. | 2020-08-20 |
20200266694 | CONTROL CIRCUIT - A control circuit for a converter for use in a vehicle, such as an electrically powered vehicle. The converter has at least one controllable power semiconductor device. The control circuit is designed to control a changeover procedure of the at least one controllable power semiconductor device based on a control signal, and the control circuit is designed to control the at least one controllable power semiconductor device based on the control signal by temporally adjusting the behaviour of the at least one controllable power semiconductor device during the changeover procedure while taking a shaping parameter into account. The shaping parameter is a shaping parameter for electromagnetic emissions of the at least one controllable power semiconductor device. Also described is a converter for use in a vehicle having the at least one control circuit of that type, a vehicle having at least one converter of that type, and a corresponding method. | 2020-08-20 |
20200266695 | ELECTRONIC CIRCUIT FOR COMPENSATING VOLTAGE BASED ON AUTO ZEROING OPERATION - In one embodiment, the electronic circuit includes a first amplifying circuit configured to generate a first compensation voltage based on a first reference voltage and an output voltage. The output voltage is from a functional circuit bloc. A second amplifying circuit is configured to generate a control voltage based on an input voltage, a second reference voltage and the first compensation voltage. The second reference voltage is different than the first reference voltage. | 2020-08-20 |
20200266696 | Current In-Rush Limiter - Circuits and methods for limiting excessive current in circuits (such as step-up DC-to-DC converter circuits) in which very low ohmic FETs (VLOFETs) are used in circuit pathways that are subjected to startup in-rush current. Embodiments include a current mirror driver circuit that can be coupled to the gates of a VLOFET to form a current mirror that limits current flow through the VLOFET. The current mirror driver circuit provides for pulsed operation so that a coupled VLOFET still toggles between an OFF state and a current limited mode, particularly during a startup period. By using the current mirror driver circuit in conjunction with VLOFETs in circuit pathways that are subjected to startup in-rush current, in-rush current can be regulated to an acceptable level. Notably, no additional impedances are required in circuit pathways that are subjected to startup in-rush current to limit in-rush current, thus avoiding loss of efficiency. | 2020-08-20 |
20200266697 | Multi-level Inverter - A multi-level inverter having one or more banks, each bank containing a plurality of low voltage MOSFET transistors. A processor configured to switch the plurality of low voltage MOSFET transistors in each bank to switch at multiple times during each cycle. | 2020-08-20 |
20200266698 | Multi-level Inverter - A multi-level inverter having one or more banks, each bank containing a plurality of low voltage MOSFET transistors. A processor configured to switch the plurality of low voltage MOSFET transistors in each bank to switch at multiple times during each cycle. | 2020-08-20 |
20200266699 | POWER CONVERSION DEVICE - A period from when switching elements S | 2020-08-20 |
20200266700 | DYNAMIC SIGNAL SLOPE COMPENSATION - Some aspects of the present disclosure provide for a circuit. In at least some examples, the circuit includes an integrator coupled between a first node and a second node and a filter coupled between the second node and a third node. The circuit further includes a buffer coupled between the third node and a fourth node and a first switch coupled between the fourth node and a fifth node. The circuit further includes a first capacitor coupled between the fifth node and a ground node, a first resistor comprising a first terminal coupled to the fifth node and a second terminal, a second switch coupled between the second terminal of the first resistor and the ground node. | 2020-08-20 |
20200266701 | VOLTAGE CONVERTER SUPPRESSING HARMONICS - A voltage converter includes a switch controller controlling operation of first second transistors to generate an output voltage from an input voltage while suppressing harmonics generated by the operation of the first an second transistors, wherein the first transistor includes an embedded snubber including a first damping resistor. | 2020-08-20 |
20200266702 | ADAPTIVE RAMP SIGNAL GENERATION - Aspects of the disclosure provide for a circuit. In some examples, the circuit includes a first charging path including a first capacitor coupled to a first output node. The circuit further includes a second charging path comprising a first switch and a second capacitor. The circuit further includes a third charging path comprising a second switch and a third capacitor. The circuit further includes a first discharging path comprising the second capacitor, a third switch coupled between the second charging path and a second output node, and a fourth switch coupled between the second charging path and a fourth node. The circuit further includes a second discharging path comprising the third capacitor, a fifth switch coupled between the third charging path and the second output node, and a sixth switch coupled between the third node and the fourth node. | 2020-08-20 |
20200266703 | Systems And Methods For Voltage Conversion Implementing A Switched-Capacitor Circuit - A voltage conversion system including a source configured to supply a voltage and a switch capacitor circuit electrically coupled to the source. The switch capacitor circuit is configured to switch between a discharging state and a charging state. The switching between the discharging state and the charging state produces a boost to the supplied voltage. The voltage conversion system includes a capacitor in the switch capacitor circuit configured to store charge during the charging state and drain charge during the discharging state. The voltage conversion system includes a switching arrangement having a plurality of switch pairs configured to supply a converted voltage to a load. The switch capacitor circuit and the switching arrangement are interfaced to produce a unified circuit. | 2020-08-20 |
20200266704 | SWITCHING POWER SUPPLY CONTROLLER - A switching power supply controller, including a high-side drive circuit, a low-side drive circuit, a control circuit which supplies a high-side drive signal to the high-side drive circuit, and which supplies a low-side drive signal to the low-side drive circuit, an oscillation circuit which generates an on-trigger signal and an off-trigger signal at a switching frequency corresponding to a voltage signal, and which supplies the on-trigger signal and the off-trigger signal to the control circuit, and a precharge circuit which receives from the control circuit a burst operation signal, indicative of a burst operation in a standby mode, and which supplies for a second period a precharge signal that causes the control circuit to output the low-side drive signal upon detecting that a switching stop period, during which the first voltage signal falls below a threshold voltage, exceeds a first period. | 2020-08-20 |
20200266705 | HIGH POWER VOLTAGE REGULATOR MODULE - A Voltage Regulator Module (VRM) includes a first voltage rail circuit board oriented in a first plane having formed therein a first plurality of conductors and configured to produce a first rail voltage, a second voltage rail circuit board oriented in a second plane that is substantially parallel to the first plane having formed therein a second plurality of conductors and configured to produce a second rail voltage. The VRM also includes a first capacitor circuit board oriented in a third plane that is (substantially perpendicular to the first plane and a second capacitor circuit board oriented in a fourth plane that is substantially parallel to the third plane. The VRM includes a plurality of conductors intercoupling the first voltage rail circuit board, the first capacitor circuit board, the second voltage rail circuit board, and the second capacitor circuit board. | 2020-08-20 |
20200266706 | ELECTRICAL POWER CONVERTER - A power converter comprises a regulator, a value-supply system arranged for collecting at least one operating point of the power converter, and a predictor operative to produce updated regulator parameters (such as one or more power supply coefficients) implemented by the regulator to produce an output voltage to power a load. The updated regulator parameters are determined using a process based on the at least one collected operating point samples and predictor parameters obtained from a machine-learning process. | 2020-08-20 |
20200266707 | BUCK CONVERTER - The present disclosure relates to a buck converter which includes a voltage converter configured to convert an input voltage into an output voltage by a driving signal, a compensator configured to generate an error compensation signal by receiving a feedback signal defined from the output voltage, an active ramp controller configured to generate a ramp signal by adjusting a ramp bias voltage when load transient occurs, and an output voltage controller configured to adjust the output voltage using the ramp signal and the error compensation signal. | 2020-08-20 |
20200266708 | ELECTRONIC CIRCUIT AND METHOD OF CONTROLLING THREE-LEVEL SWITCHING CONVERTERS - A method including producing an electronic circuit. The method can include providing a first circuit portion, a second circuit portion, a flying capacitor voltage comparator, an output switching circuit, an electronic circuit first output node, and/or an electronic circuit second output node. The electronic circuit first output node can be electrically coupled to a first gate terminal of a switching converter. The electronic circuit second output node can be electrically coupled to a second gate terminal of the switching converter. The method also can include electrically coupling a voltage sensor output terminal of the flying capacitor voltage comparator to the first circuit second input node of the first circuit portion and the second circuit second input node of the second circuit portion. Other embodiments are disclosed. | 2020-08-20 |
20200266709 | Line Discharge Circuit with Low Power Components - A control circuit includes a discharge circuit, a control logic, and an output. The output is communicatively coupled to a control terminal of a power transistor. The control circuit further includes an input communicatively coupled to an input of the transistor. In a discharge mode of operation, the control logic is configured to provide a control terminal voltage to the control terminal of the power transistor via the output. The control terminal voltage is configured to operate the power transistor linearly to dissipate energy stored in a capacitance connected to an input of the power transistor/In the discharge mode, the discharge circuit is configured to receive a discharge current from an output of the power transistor, and to dissipate remaining energy undissipated by the power transistor. | 2020-08-20 |
20200266710 | CONTROL CIRCUIT OF BUCK-BOOST CONVERTING APPARATUS AND MODE SWITCHING METHOD OF THE SAME - A control circuit of a buck-boost converting apparatus is disclosed. The control circuit includes a current sensing circuit and a mode determination circuit. The current sensing circuit senses an output current of the buck-boost converting apparatus and provides a current sensing signal. The mode determination circuit is coupled to the current sensing circuit and receives the current sensing signal. The mode determination circuit generates a default voltage according to the current sensing signal and a default current, and the mode determination circuit generates a switching control signal according to the default voltage and the current sensing signal to control the buck-boost converting apparatus to be operated in a buck mode, a boost mode or a buck-boost mode. | 2020-08-20 |
20200266711 | RECTIFIER CIRCUIT AND POWER SUPPLY UNIT - The present disclosure, in an aspect thereof, has an object to effectively reduce transient current in a rectifier circuit. In a rectifier circuit, a current flows from a power supply to a coil when a transistor is turned on. Then, when the transistor is turned off, a second rectifier current flows from the coil to a second rectifier. | 2020-08-20 |
20200266712 | BURST MODE OPERATION FOR A RESONANT CONVERTER - A circuit includes a first driver, a second driver, and a burst mode control circuit coupled to the first and second drivers. The burst mode control circuit is configured to implement a burst mode operation having a burst soft-on portion and a burst portion. During the soft-on portion of the burst mode operation, the burst mode control circuit is configured to cause the first and second drivers to produce a first set of pulses of increasing pulse width. During the burst portion of the burst mode operation, the burst mode control circuit is configured to cause the first and second drivers to produce a second set of pulses of a constant pulse width. | 2020-08-20 |
20200266713 | DC-DC converter - A DC-DC converter comprises
| 2020-08-20 |
20200266714 | MULTI-PHASE-SHIFT CONTROL OF A POWER CONVERTER - Multi-phase-shift control of a power converter is provided. The power converter includes a dual-active-bridge (DAB) converter having a transformer, a first H-bridge coupled to the primary winding of the transformer, and a second H-bridge coupled to the secondary winding of the transformer. The DAB converter is operable to generate two-level and three-level voltage waveforms on the primary winding and on the secondary winding to yield a system which ensures zero-voltage switching and unity power factor over a wide range of input and output voltage levels and power throughputs. In a multi-phase shift (MPS) mode of operation, the DAB converter changes from a two-level voltage in at least one of the windings to a three-level voltage in both windings in response to the instantaneous load being below a predetermined level, resulting in more efficient performance of the DAB converter in light load conditions. | 2020-08-20 |
20200266715 | ISOLATED POWER CONVERTER FOR A THERMAL SYSTEM - A power converter system provides adjustable power to a heater and includes an input rectifier and a full-bridge isolating converter. The input rectifier is configured to rectify a line power having a line energy. The full-bridge isolating converter configured to generate an isolated output voltage based on the rectified line power. The isolated output voltage is electrically isolated from the line energy. | 2020-08-20 |
20200266716 | POWER CONVERSION APPARATUS - An output voltage is suppressed from changing and high efficiency is realized in a power conversion apparatus capable of performing a step-up/step-down operation. In a power conversion apparatus including a DAB DC/DC converter, when energy transmitted from a primary side and energy accumulated in a reactor at a secondary side are output from the secondary side, of a control signal of a first switching element and a control signal of a fourth switching element which are both in ON states, the first and fourth switching elements being diagonal to each other in a full bridge at the primary side, a period Toff2 in which the control signal of the first switching element is turned off before the control signal of the fourth switching element is turned off is controlled, and thereby a step-up/step-down ratio is continuously changed. | 2020-08-20 |
20200266717 | CONVERTER - To achieve an improvement in the power factor of the input into a primary converter in a case of inputting alternating-current (AC) power. A converter is provided with a control unit that performs a switching control such that power is supplied from a primary converter to a secondary converter while keeping a voltage supplied to a load constant, and also such that power is supplied from the primary converter to a tertiary converter while keeping a current supplied to a tertiary capacitor constant. | 2020-08-20 |
20200266718 | FLYBACK CONVERTER WITH EDGE-BASED ISOLATED COMMUNICATION - A flyback converter communication channel is provided that comprises a pair of capacitors. A transmitter on a first side of a transformer for the flyback converter transmits a transmitter signal over a first one of the capacitors. The transmitter also transmits a complement of the transmitter signal over a second one of the capacitors. A receiver on a second side of the transformer controls a switch transistor responsive to a high-pass-filtered difference of the received signals from the pair of capacitors. | 2020-08-20 |
20200266719 | Frequency Doubling Resonant Converter - A frequency doubling resonant converter can include a dual half bridge resonant converter configured to receive an input DC voltage and convert it to an frequency doubled AC voltage having a frequency twice the switching frequency of the dual half bridge resonant converter. The converter can further include a step down transformer configured to reduce the frequency doubled AC voltage to a stepped down AC voltage. The converter can further include a rectifier configured to convert the stepped down AC voltage into a DC output voltage for delivery to a load. The converter may optionally include an interphase transformer coupled between the step down transformer and the rectifier and configured to increase an output current of the converter. The frequency doubling resonant converter may be configured, for example, to double an output current received from the step down transformer. | 2020-08-20 |
20200266720 | Auxiliary Power Supply Apparatus and Method for Isolated Power Converters - An apparatus includes a pulse-width modulation (PWM) generator configured to generate a PWM signal for controlling a power switch of a power converter, a bias switch and a bias capacitor connected in series and coupled to a magnetic winding of the power converter and a comparator having a first input connected to the bias capacitor, a second input connected to a predetermined reference and an output configured to generate a signal for controlling the bias switch to allow a magnetizing current from the magnetic winding to charge the bias capacitor when a voltage across the bias capacitor is less than the predetermined reference. | 2020-08-20 |
20200266721 | CONVERTER SCHEME - A converter scheme ( | 2020-08-20 |
20200266722 | DYNAMIC STABILITY ANALYSIS AND CONTROL METHOD FOR VOLTAGE SOURCED CONVERTER BASED HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM - A dynamic stability analysis and control method for a voltage sourced converter based high voltage direct current (VSC-HVDC) transmission system. The method includes the following steps: unlocking a converter station of the VSC-HVDC transmission system to make the VSC-HVDC transmission system run in a non-island control mode; extracting corresponding parameters of the VSC-HVDC transmission system, wherein the parameters include an effective voltage value U | 2020-08-20 |
20200266723 | POWER CONVERTING APPARATUS - A power converting apparatus according to the present disclosure includes: a capacitor being supplied with a DC from a battery of a vehicle; at least one or more power converting modules including a power terminal through which a current is input and output and a signal terminal through which signals are input and output, and disposed perpendicular to the capacitor with the power terminal facing the bottom of the capacitor and the signal terminal facing the top of the capacitor; a control unit disposed over the capacitor and controlling the power converting module; and a housing assembled with the capacitor, the power converting module, and the control unit. | 2020-08-20 |
20200266724 | POWER CONVERSION DEVICE - The inductance of a noise filter circuit is reduced, and an output is increased, whereby positive and negative electrode power supply side conductors each include a first and second conductor portions having a side surface and a main surface having an area larger than an area of the side surface. The first conductor portions are arranged on one surface of a base portion with an insulating member interposed therebetween. The second conductor portions penetrate through a core member in a state in which the main surfaces face each other. A width of a portion of the first conductor portion which is in contact with the insulating member in a direction perpendicular to current flow direction is larger than a width of a portion of the second conductor portion which is disposed within the core member in the direction perpendicular to current flow direction. | 2020-08-20 |
20200266725 | ARRANGEMENT FOR EARTHING A DC INTERMEDIATE LINK - An arrangement for earthing a DC intermediate link connected to a converter on board a track-bound vehicle is configured to be permanently arranged on board the vehicle and comprises two conducting members ( | 2020-08-20 |
20200266726 | RECTIFIER CIRCUIT AND POWER SUPPLY UNIT - The present disclosure, in an aspect thereof, has an object to effectively reduce transient current in a rectifier circuit. In a rectifier circuit, a current flows from a power supply to a coil when a transistor is turned on. Then, when the transistor is turned off, a second rectifier current flows from the coil to a second rectifier, and a first reverse voltage is applied across the rectifier circuit. | 2020-08-20 |
20200266727 | SEMICONDUCTOR MODULE AND POWER CONVERTER USING THE SAME - A semiconductor module may include a plurality of semiconductor elements; and a first power terminal, a second power terminal and a third power terminal electrically connected to the plurality of semiconductor elements. The plurality of semiconductor elements may include at least one upper arm switching element electrically connected between the first power terminal and the second power terminal; and at least one lower arm switching element electrically connected between the second power terminal and the third power terminal. A number of the at least one upper arm switching element may be different from a number of the at least one lower arm switching element. | 2020-08-20 |
20200266728 | DUAL ACTIVE BRIDGE ENERGY STORAGE MODULE SYSTEMS - An energy storage module (ESM) assembly includes an ESM having an energy source and a multi-level dual active bridge (ML-DAB). The ML-DAB is connected to the energy source to source current therefrom, or send current thereto, or both. A system architecture includes the ESM assembly having an ESM with an energy source, and a ML-DAB connected to the energy source to source current therefrom, or send current thereto, or both. The system architecture includes a DC bus connected to the ESM assembly. | 2020-08-20 |
20200266729 | ULTRASONIC RESONATING MOTOR - An ultrasonic electromechanical stator includes two vibration bodies, a link member connecting the two vibration bodies along a connection direction and a stator support. Each of the vibration bodies includes a respective electromechanical element and is configured to perform bending vibrations in a bending direction when an alternating voltage is applied to the electromechanical elements. The link member has a contact portion intended for contacting a surface of a body to be moved. The link member has a respective mechanical link connecting portion to the vibrating bodies. Each of the vibration bodies is mechanically attached to the stator support by at least two attachment tabs on at least one side, in a direction transverse to both the connection direction and the bending direction, of the respective vibration bodies. Also an ultrasonic electromechanical motor having such an ultrasonic electromechanical stator is disclosed. | 2020-08-20 |
20200266730 | ELECTROMECHANICAL STATOR, MOTOR AND METHOD FOR DRIVING AN ELECTROMECHANICAL MOTOR - An electromechanical stator includes an actuator section, a support section and a spring section. A continuous sheet of elastic material constitutes at least a part of each of these sections. The actuator section includes a vibration body and a moved-body interaction portion. The vibration body includes an electromechanical volume. The spring section is elastic, with a spring constant, enabling provision of a normal force in the vibration direction upon displacement of the fixation point. Also an electromechanical motor and a method of operating such an electromechanical motor are disclosed. | 2020-08-20 |
20200266731 | Electric Drive System and Energy Management Method - An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals. | 2020-08-20 |
20200266732 | MOTOR DRIVING CONTROL DEVICE AND MOTOR DRIVING CONTROL METHOD - A motor driving control device includes a motor driving unit, a position detection unit, a current detection unit and a control unit. The control unit includes a change detecting means configured to detect a predetermined phase change in the position signal, a first switching means configured to sequentially switch energization patterns of the coils with the plurality of phases based on a timing when the phase change is detected, and a second switching means configured to, in a state where the change detecting means does not detect the phase change, when a value of the drive current becomes a predetermined first threshold or more during a monitoring time period after a timing when the predetermined phase change in the position signal is expected, perform an operation to forcibly switch to a next energization pattern regardless of the timing of switching the energization pattern by the first switching means. | 2020-08-20 |
20200266733 | METHOD FOR CONTROLLING BRUSHLESS MOTOR - Provided is a method for controlling a brushless motor ( | 2020-08-20 |
20200266734 | ELECTRONICALLY COMMUTATED ELECTRIC MOTOR AND METHOD FOR CONTROLLING THE SAME - An electronically commutated electric motor includes a stator with stator coil(s), a magnetized rotor which rotates relative to the stator, the magnetized rotor having at least two opposite magnet poles which generate an excitation field, a static magnetic field sensor which detects the excitation field and generates a sensor signal having signal edges, a full-wave signal period, and half-wave lengths of an N- and an S-signal level, a motor energizing device which drives the stator coil(s) and generates a revolving stator field when triggered by a trigger signal, a memory unit which saves parameter values, and an evaluation unit which generates the trigger signal via a shift compensation of an asymmetric shift of the signal edges of the sensor signal. The shift compensation is calculated based on a position of a received sensor signal edge, the full-wave signal period, and the half-wave lengths of the sensor signal. | 2020-08-20 |
20200266735 | MOTOR CONTROL APPARATUS AND IMAGE FORMING APPARATUS THAT DETECT ROTOR POSITION - A motor control apparatus includes: a switching power supply; a first motor configured to operate with a voltage from the switching power supply; and a control unit configured to control the first motor, wherein the control unit is further configured to cause the switching power supply to supply power of the switching power supply to a load other than the first motor before detecting an initial position of a rotor of the first motor using a current flowing through the first motor. | 2020-08-20 |
20200266736 | MOTOR CONTROL DEVICE, MOTOR CONTROL METHOD, MOTOR CONTROL PROGRAM, AND ACTUATOR - A motor control device includes: a current position detector that detects a current position of a driven object driven by an external motor; a position comparator that compares the current position of the driven object with a target position; a speed controller that subjects the motor to speed control based on a target speed of the driven object; a position controller that subjects the motor to position control based on the target position of the driven object; and a control switcher that switches control of the motor from the speed control to the position control when a difference between the current position and target position of the driven object becomes smaller than a predetermined threshold value. | 2020-08-20 |
20200266737 | METHOD FOR CONTROLLING A SEMICONDUCTOR BRIDGE OF AN ELECTRICALLY OPERABLE MOTOR BY MEANS OF A RAMP SIGNAL, CONTROL DEVICE AND ARRANGEMENT - A method for controlling a semiconductor bridge of an electrically operable motor, the semiconductor bridge being controlled depending on a pulse width modulation signal by a first controllable semiconductor switch and a separate second controllable semiconductor switch for supplying the electrically operable motor with electrical energy, a ramp signal with a predeterminable ramp slope for controlling one of the two controllable semiconductor switches being generated by a ramp generator, depending on the pulse width modulation signal. The invention also relates to a control device and to an arrangement. | 2020-08-20 |
20200266738 | CONTROL METHOD AND CONTROL UNIT FOR A DC PUMP MOTOR - A method for controlling a DC pump motor, preferably a brushed DC motor for pumping lubricant, which motor is controlled by a pulse-width modulated (PWM) control signal, wherein current parameters are acquired in an acquisition step and a duty cycle (D) of the PWM control signal (S | 2020-08-20 |
20200266739 | DRIVING CIRCUIT FOR STEPPING MOTOR, METHOD OF DRIVING STEPPING MOTOR, AND ELECTRONIC DEVICE USING THE SAME - There is provided a driving circuit for a stepping motor, including: a counter electromotive force detection circuit configured to detect a counter electromotive force generated in a coil; a current value setting circuit configured to generate a current set value based on the counter electromotive force; a constant current chopper circuit configured to generate a pulse-modulated signal which is pulse-modulated so that a detected value of a coil current flowing through the coil approaches a target amount based on the current set value; and a logic circuit configured to control a bridge circuit connected to the coil according to the pulse-modulated signal, wherein the driving circuit is configured to output the current set value to outside or to access the current set value from the outside. | 2020-08-20 |
20200266740 | STALL DETECTION IN STEPPER MOTORS USING DIFFERENTIAL BACK-EMF BETWEEN RISING AND FALLING COMMUTATION PHASE OF MOTOR CURRENT - In one embodiment, a method includes detecting, by a stall detection sensor in a driver coupled to a stepper motor, a first set of time-off periods in a rising commutation phase of motor current during current regulation. The stall detection sensor further detects a second set of time-off periods in a falling commutation phase of motor current during current regulation. Next, the stall detection sensor compares the first set of time-off periods with the second set of time-off periods and determines whether the stepper motor is stalled based on the comparison of the first set of time-off periods with the second set of time-off periods. | 2020-08-20 |
20200266741 | GAS TURBINE GENERATOR SPEED DC TO DC CONVERTER CONTROL SYSTEM - A system includes a gas turbine operational at a constant rated rotational speed, a speed sensor to measure an actual speed of the gas turbine, a turbine controller to control the gas turbine to the constant rated rotational speed, and a generator coupled with the gas turbine and rotatable to output electric power. The system also includes a DC to DC converter to output a load current on a load bus to supply a load. The DC to DC converter is supplied input electric power from the generator. The system also includes an energy storage device cooperative operable with the DC to DC converter to supply power on the load bus, and a controller to receive the actual speed and adjust an output electrical current set point of the DC to DC converter to compensate for deviation of the actual speed from the constant rated speed of the gas turbine. | 2020-08-20 |
20200266742 | MULTI-STAGE SYNCHRONOUS GENERATOR - The disclosed embodiments aim to improve upon existing multi stage generators for providing power to a load. In particular, embodiments of the invention include a regulator situated between the output of a pilot exciter and the main exciter of a multi stage generator system, the regulator arranged to limit the voltage available to a field current control element which sets the field current supplied to the main exciter. | 2020-08-20 |
20200266743 | SYSTEMS, METHODS AND DEVICES FOR NEURAL NETWORK CONTROL FOR IPM MOTOR DRIVES - Described herein is a method and system for controlling an interior-mounted permanent magnet (IPM) alternating-current (AC) electrical machine utilizing a space vector pulse-width modulated (SVPWM) converter operably connected between an electrical power source and the IPM AC electrical machine comprising three neural networks (NNs), including a controller NN operably connected to the SVPWM converter, a parameter estimator NN, and a flux-weakening and MTPA NN. | 2020-08-20 |
20200266744 | FIELD-ORIENTED CONTROL OF A PERMANENTLY EXCITED SYNCHRONOUS RELUCTANCE MACHINE - For the field-oriented control of a permanently excited synchronous machine with reluctance torque a flux-generating current component and a torque-generating current component are determined as a function of a required torque. A voltage component in the flux direction is determined as a function of the flux-generating current component, and a voltage component perpendicular to the flux direction is determined as a function of the torque-generating current component. Upon determining a differential amount by subtracting a vectorial sum of the voltage components from a maximum voltage a first differential value is obtain, via output from a PI-voltage controller, based on the differential amount. Upon determining an input voltage component based on the flux-generating current component and the first differential value, the permanently excited synchronous machine is controlled based on the input voltage component. | 2020-08-20 |
20200266745 | MOTOR CONTROL DEVICE, METHOD OF ESTIMATING INITIAL POSITION OF MAGNETIC POLE OF ROTOR, AND IMAGE FORMING APPARATUS - In a motor control device, when estimating an initial position of a magnetic pole of a rotor of a motor, a drive circuit continuously or intermittently applies a voltage to a stator winding at each of a plurality of energization angles while sequentially changing the energization angles, and at a voltage value and for an energization time period, the voltage value and the energization time period being set such that the rotor does not rotate. An initial position estimation unit calculates an estimated initial position of the magnetic pole of the rotor based on a phase angle of a trigonometric function curve that approximates a change of a γ-axis current Iγ with respect to each of the energization angles. The trigonometric function curve has a cycle equal to one electrical cycle of the motor. | 2020-08-20 |
20200266746 | ELECTRIC DRIVE DEVICE - The disclosure relates to an electrical drive device having: an inverter including an inverter unit for each phase; a control unit configured to control the inverter units by application of vector control; and a rotating electrical machine having a stator that includes a plurality of phase windings connected to the inverter units. Each of the phase windings includes a first part-winding and an electrically isolated second part-winding. The inverter units include a first phase module and a second phase module. The phase modules deliver the electrical phase assigned to the respective inverter unit in a separate and a mutually electrically isolated manner. The first part-winding is electrically connected to the first phase module and the second part-winding is electrically connected to the second phase module. | 2020-08-20 |