19th week of 2019 patent applcation highlights part 75 |
Patent application number | Title | Published |
20190140442 | Inrush Limit of Self-Regulating Heating Cables - The invention includes a system for reducing inrush current of a self-regulating heating cable. The system includes a power supply configured to provide an input voltage to the self-regulating heating cable. The system further includes a passive element configured to reduce the inrush current. The power supply, the passive element, and the self-regulating heating cable are connected in series. | 2019-05-09 |
20190140443 | ARRANGEMENT FOR OVERLOAD PROTECTION FOR OVERVOLTAGE PROTECTION EQUIPMENT - The invention relates to an arrangement for overload protection of overvoltage protection devices, consisting of at least one type II surge arrester with or without a thermal disconnecting device that responds in the event of an of overload. According to the invention, a switching unit free of movable contacts is connected in series with the at least one surge arrester and structurally combined therewith, which switching unit has at least two fixed narrow spaced switching contacts, wherein the spacing of the switching contacts is specified in such a way that in the event of every surge current or discharge process, the switching device changes into a quasi-closed state because of the arc formed; whereas in the idle state, the voltage of the connected mains drops at the switching device, with the surge arrester arranged in series remaining free of leakage current. | 2019-05-09 |
20190140444 | Overvoltage Protection and Linear Regulator Device Module - An apparatus may include a transient voltage suppression (TVS) device array coupled to a first input terminal and a second input terminal; and a linear regulator module having a pair of inputs connected to a respective pair of outputs of the TVS device array, wherein the TVS device array includes at least one TVS diode is connected between a first output and second output of the pair of outputs to generate a first clamping voltage signal, and wherein the linear regulator module is configured to generate a second clamping voltage signal having a second clamping voltage independent of a first clamping voltage of the first clamping voltage signal received from the TVS device array. | 2019-05-09 |
20190140445 | CURRENT/VOLTAGE CONTROL SYSTEM - A current/voltage control apparatus capable of following power changes in a DC system. A current/voltage control apparatus includes a central monitoring control device that controls V-I characteristics of a terminal converter based on power consumption consumed by a load facility and generated power generated by a power generation facility, and the central monitoring control device includes a load state setting unit that predicts a change range of the power consumption in a predetermined period and also predicts a change range of the generated power in the period and a V-I characteristic determination unit that determines the V-I characteristics of the terminal converter based on the change range of the power consumption and the change range of the generated power predicted by the load state setting unit. | 2019-05-09 |
20190140446 | SUPPORTING ELECTRICAL UTILITY PERFORMANCE WITH DISPATHABLE DISTRIBUTED ENERGY RESOURCES - Distributed energy resources are validated by dispatching a distributed energy resources individually in known ambient conditions and monitoring the particular effect of dispatch to then establish a database of performance for multiple different distributed energy resources. The distributed energy resources can be permanently monitored to further build up this database and to verify that the distributed energy resource 1s performing consistent with its validation or other expected performance. Distributed energy resources of a slow responding variety and a fast responding variety can be paired together and dispatched together, so that the paired fast responding and slow responding distributed energy resources mimic a large fast responding distributed energy resource. The benefits of a high capacity fast responding distributed energy resource is thus provided, such as for the load shedding and grid support benefits thereof. | 2019-05-09 |
20190140447 | METHOD FOR CONTROLLING CURRENT AMOUNT FLOWING INTO CIRCUIT MODULE AND ASSOCIATED CHIP - The present invention provides a chip comprising a circuit module, a power switch and a detection and control circuit. The power switch is coupled between a supply voltage and the circuit module, and is used to selectively connect the supply voltage to the circuit module, and control a current amount flowing into the circuit module according to at least a control signal. The detection and control circuit is coupled to the power switch, and is used to detect a first signal generated by a first circuit positioned surrounding the circuit module, and compare the first signal with a second signal in a real-time manner to generate the control signal to adjust the current amount flowing into the circuit module. | 2019-05-09 |
20190140448 | PROACTIVE INTELLIGENT LOAD SHEDDING - A power control system utilizing real-time power system operating data to effectuate predictive load shedding so as to accurately predict the need for and the optimal type of responsive action to a contingency—before the contingency actually occurs. | 2019-05-09 |
20190140449 | POWER CONTROL SYSTEMS AND METHODS - A power supply configured to operatively connect at least one load to at least one DC power source comprises an AC bus, a DC bus, a DC/AC converter, and a load balancer. The AC bus is adapted to be operatively connected to the load. the DC/AC converter is operatively connected between the DC bus and the AC bus. The load balancer is adapted to be operatively connected to the at least one DC power source and operatively connected to the DC bus. The power supply supplies power to the load from the first DC power source through the load balancer, the DC bus, the DC/AC converter, and the AC bus. | 2019-05-09 |
20190140450 | ENERGY CURTAILMENT EVENT IMPLEMENTATION BASED ON UNCERTAINTY OF DEMAND FLEXIBILITY - A system configured for curtailment event implementation based on uncertainty of energy demand flexibility of sites includes a processor and a non-transitory computer-readable medium communicatively coupled to the processor and having encoded therein programming code executable by the processor to perform operations. The operations may include receiving energy usage data from meters at sites and uncertainties of energy demand flexibility for each site. The uncertainties of energy demand flexibility of each site may be zero, may fit a single probability distribution, may fit a set of probability distributions, or may belong to a set of demand flexibilities. The operations may include clustering the sites based on the uncertainties. The operations may include solving group-specific formulations for groups. The operations may include identifying sites to include in the DR event using the solved-for group-specific parameters. The operations may include implementing the DR event at the identified sites to reduce energy usage. | 2019-05-09 |
20190140451 | POWER MANAGEMENT OF A PASSENGER TRANSPORT SYSTEM - A method for implementing power management with a passenger transport system including at least one passenger transport installation of a building includes obtaining real-time grid frequency information of the power grid; receiving, from an external control platform, a control signal request associated with the real-time grid frequency; and initiating power management of the passenger transport system based on the control request signal using at least one energy storage coupled to the passenger transport installation. | 2019-05-09 |
20190140452 | POWER CONTROL APPARATUS, CONTROL METHOD OF POWER CONTROL APPARATUS, DISTRIBUTED POWER SUPPLY SYSTEM, AND CONTROL METHOD OF DISTRIBUTED POWER SUPPLY SYSTEM - Inrush current to a load at the time of a power outage is reduced. A power control apparatus includes an inverter and a controller. When the controller detects a power outage in a power grid, the controller performs control so that output voltage supplied from the inverter to a switching device rises to an operating voltage. The operating voltage is the voltage at which the switching device operates to switch from electric power supplied to load devices from the power grid to electric power from the inverter. The controller also performs control to maintain the output voltage at or below the operating voltage when the output voltage reaches the operating voltage and then performs control so that the output voltage rises to a predetermined voltage exceeding the operating voltage. | 2019-05-09 |
20190140453 | Model Predictive Controller for Autonomous Hybrid Microgrids - A control system is disclosed with a control strategy for autonomous multi-bus hybrid microgrids based on Finite-Control-Set Model Predictive Control (FCS-MPC). The control loops are expedited by predicting the future states and determining the optimal control action before switching signals are sent to converters/inverters. The method eliminates PI and PWM components, and offers 1) accurate PV maximum power point tracking (MPPT) and battery charging/discharging control, 2) DC and AC bus voltage/frequency regulation, and 3) precise and flexible power sharing control among multiple DERs. | 2019-05-09 |
20190140454 | Multi-Engine Optimizer Zone Strategy - A power system having a plurality of gensets compares the instantaneous power consumption with a plurality of power consumption zone boundaries and classifies the power consumption into a selected zone. Each zone includes a corresponding base power value and a corresponding dynamic range value, which are apportioned among the plurality of gensets. | 2019-05-09 |
20190140455 | DYNAMIC HOSTING CAPACITY SYSTEM AND METHOD FOR DER INTEGRATION AND MANAGEMENT ON DISTRIBUTION UTILITY NETWORKS - A distributed energy resource management system utilizes capacity on a distribution grid to host further distributed energy resource interconnections. In an embodiment, the system utilizes a data store including operational values associated with distributed electric resources on an electric power distribution network and a processor or processors coupled to the data store and in communication with the distributed electric resources. The computer processors are programmed, upon receiving one or more requests, to create 3-phase AC power flows for each location across the electric power distribution network. Optimizations of the 3-phase AC power flows to are used to calculate hosting capacity for each of the locations, for each of a plurality of time intervals, and each of a plurality of types of distributed energy resource, as a dynamic quantity that can change depending on time, day, season, and location. The hosting capacity is translated into calculated operational values which are used to determine and send a direction to actively manage distributed energy resources on the electric power distribution network. | 2019-05-09 |
20190140456 | CHARGING METHOD, CHARGING SYSTEM AND ELECTRONIC DEVICE - A charging method, a charging system and an electronic device are provided. The charging method includes the following steps: An inputting current limit is set. An inputting current of at least one charger is measured. A power source voltage of a power source is adjusted until a current difference between the inputting current and the inputting current limit is within a predetermined range. | 2019-05-09 |
20190140457 | BATTERY CHARGING METHOD, BATTERY CHARGER AND CHARGING ASSEMBLY - A battery charging method includes detecting a battery temperature and a battery power, determining whether the battery temperature satisfies a preset temperature condition for switching charging processes, performing a first charging process when the battery temperature is less than or equal to a first preset temperature value, performing a second charging process when the battery temperature is greater than the first preset temperature value and less than a second preset temperature value, and determining whether the battery power is less than a first preset power value when the battery temperature is equal to or greater than the second preset temperature value and less than a third preset temperature value, and performing a third charging process when the battery power is less than the first preset power value. Pulsed charging and pulsed discharging are alternately performed in the first charging process and a charge current is dynamically adjusted according to the battery temperature and the battery power in the second charging process. | 2019-05-09 |
20190140458 | CHARGING CONTROL METHOD, DEVICE, AND SYSTEM - A charging control method, device, and system. The charging control method comprises: a terminal apparatus acquires a feedback voltage of a charging input port, and transmits the same to a charger; and the charger adjusts, according to the feedback voltage, the charger to provide, to the terminal apparatus, a charging voltage, and transmit power to the terminal apparatus. | 2019-05-09 |
20190140459 | Module Maintenance System - A module maintenance system includes a battery module, a charging device, and a rig. The battery module has a series configuration and a parallel configuration. In the parallel configuration, the rig connects each battery cell of the battery module in parallel and the charging device charges each battery cell of the battery module using the rig. In the series configuration, the battery module serially connects each battery cell of the battery module to a first terminal and a second terminal and the charging device charges each battery cell of the battery module using the first terminal and the second terminal. | 2019-05-09 |
20190140460 | CHARGING DEVICE, CHARGING CIRCUIT, AND CHARGING METHOD FOR BATTERIES IN SERIES - A charging circuit and device for charging batteries in series includes a controller, a first voltage detecting assembly, and a switching assembly. The first voltage detecting assembly electrically connects to a battery pack and the controller, and detects and transmits the voltage of each call of the battery pack. The battery pack includes at least two cells connected in series. The switching assembly includes switches corresponding to each cell. When a voltage of a cell reaches a predetermined value, the controller controls the governing switch to stop charging the cell. The charging circuit and device have simple structure, low cost, and high reliability and safety. A method for charging using the circuit and device is also presented. | 2019-05-09 |
20190140461 | Multi-Device Tabletop Charging Station - An improved multi-device tabletop charging station is described herein. The multi-device tabletop charging station can comprise a housing, a Universal Serial Bus (USB) hub, a plurality of retractable cable reels, and a plurality of chargers. The housing can comprise a top inner surface and a bottom inner surface. The top inner surface can enclose the bottom inner surface. The bottom inner surface can comprise a plurality of recessed sections, and a plurality of openings. The (USB) hub can be mounted within the top inner surface. The USB hub can comprise a plurality of powered ports. The plurality of retractable cable reels can each be mounted within each of the plurality of recessed section. The plurality of chargers can each be reeled onto each of the plurality of retractable cable reels. Each of the plurality of chargers can comprise a first end and a second end. | 2019-05-09 |
20190140462 | POWER SUPPLY DEVICE AND LIGHTING SYSTEM - Provided is a power supply device and a lighting system. The power supply device includes a solar panel, a storage battery, a charging management circuitry, a control circuitry, and a voltage-stabilized circuitry. The positive electrode of the solar panel, an input terminal of the charging management circuitry, and a first input terminal of the voltage-stabilized circuitry are interconnected. An output terminal of the charging management circuitry, the positive electrode of the storage battery, and a second input terminal of the voltage-stabilized circuitry are interconnected. An output terminal of the voltage-stabilized circuitry is connected to a power supply terminal of the control circuitry. A first control terminal of the control circuitry is connected to a controlled terminal of the charging management circuitry. The voltage-stabilized circuitry is configured for voltage stabilizing of the electric energy output from the solar panel or from the storage battery, and to output working power to the control circuitry. The control circuitry is configured to control a working state of the charging management circuitry, allowing the solar panel to charge the storage battery through the charging management circuitry. The technical solution of the present disclosure can enable the storage battery to be charged by the solar panel in the case where the battery voltage is 0V (low voltage). | 2019-05-09 |
20190140463 | Mechanism for Charging an Electronic Device with a Retractable Cord Reel - A mechanism for charging an electronic device with a retractable cord reel. The device maintains a substantially continuous converted power source connection during operation, including operations adjusting the length of the retractable cord. | 2019-05-09 |
20190140464 | Current Sensing Circuit Disconnect Device and Method - A device and method are provided for saving power and electricity in a charging device including external power supplies and battery chargers having a primary circuit and a secondary circuit where a switch is located in the primary circuit and a current sensing device in the secondary circuit to sense when there is a drop in current in the secondary circuit or no current in the secondary circuit because the load such as a cell phone or tablet is charged and when this occurs the switch in the primary circuit is opened and the primary circuit no longer draws power from the source of power until the switch in the primary circuit is closed by either a user activating a switch to reenergize the charging device, where the switch may be powered by an on-board battery to close the primary circuit, or where a control circuit is activated by a program in the load or device to be charged, such that the charging device will cycle on and off according to an external app program residing on the device to be charged or some other device not attached to the controller. | 2019-05-09 |
20190140465 | DEMAND CHARGE MINIMIZATION IN BEHIND-THE-METER ENERGY MANAGEMENT SYSTEMS - Systems and methods for controlling behind-the meter energy storage/management systems (EMSs) for battery-optimized demand charge minimized operations, including determining an optimal monthly demand charge threshold based on a received customer load profile and a customer load profile and savings. The determining of the monthly demand charge threshold includes iteratively performing daily optimizations to determine a daily optimal demand threshold for each day of a month, selecting a monthly demand threshold by clustering the daily optimal demand thresholds for each day of the month into groups, and determining a dominant group representative of a load pattern for a next month. A mean demand threshold for the dominant group is selected as the monthly demand threshold, and continuous battery-optimized demand charge minimized EMS operations are provided based on the monthly demand threshold using a real-time controller configured for overriding the optimal charging/discharging profiles when a monthly demand threshold violation is detected. | 2019-05-09 |
20190140466 | Device to be Charged, Charging Method, and Charging Control Circuit - A device to be charged, a charging method, and a charging control circuit are provided. The device to be charged includes multiple cells coupled in series and a conversion circuit. The conversion circuit is configured to receive input voltage from a power supply device, convert the input voltage into charging voltage for the multiple cells and into power supply voltage for a system of the device to be charged, charge the multiple cells according to the charging voltage, and supply power to the system of the device to be charged according to the power supply voltage. | 2019-05-09 |
20190140467 | WIRELESS-ENABLED PORTABLE POWER-BANK - A power bank includes, in part, a rechargeable battery, a wireless power recovery unit adapted to receive power wirelessly, a battery charging circuit adapted to deliver the power recovered by the power recovery unit to the rechargeable battery, an output interface, and a voltage reconditioning circuit adapted to supply power from the rechargeable battery to the output interface for delivery to an external device. The wireless power recovery unit may include one or more of a multitude of photodiodes adapted to convert a coherent optical signal to electrical power, an acoustic transducer adapted to convert acoustic waves to an electrical power, an inductive coupling circuit adapted to convert time varying magnetic flux to electrical power, and an RF power recovery unit adapted to convert an RF signal to electrical power. | 2019-05-09 |
20190140468 | COIL MODULE AND WIRELESS MOBILE TERMINAL USING THE SAME - A coil module includes a coil part including a coil substrate and a coil pattern formed on the coil substrate; and a magnetic body part comprising, in a first part of the coil module, a first thickness which overlaps the coil substrate and comprising, in a second part of the coil module, a second thickness, thicker than the first thickness, which does not overlap the coil substrate. | 2019-05-09 |
20190140469 | WIRELESS CHARGING METHOD, AND APPARATUS AND SYSTEM THEREFOR - The present invention relates to a wireless charging method, and an apparatus and a system therefor. A wireless charging method in a wireless power transmitter, according to an embodiment of the present invention, may comprise the steps of: controlling transmission power on the basis feedback signal periodically received from wireless power receiver during power transmission; determining whether or not the wireless power receiver is present in a charging area during the power transmission; and maintaining the intensity of the transmission power constant if the result of the determination shows that the wireless power receiver is not present in the charging area. Therefore, the present invention is advantageous that it is possible to prevent, in advance, the power transmission from being unnecessarily stopped against a user's intention. | 2019-05-09 |
20190140470 | WIRELESS CHARGING SYSTEM, WIRELESS CHARGING DEVICE, WIRELESS CHARGING METHOD, AND DEVICE TO BE CHARGED - Provided are a wireless charging system, device, and method and a device to be charged. The wireless charging system includes the wireless charging device and the device to be charged. The wireless charging device includes a wireless transmitter circuit and a first communication control circuit. The device to be charged includes a battery, a wireless receiver circuit, a first charging channel, a detection circuit and a second communication control circuit. The second communication control circuit is configured to perform wireless communication with the first communication control circuit based on the output voltage and/or the output current of the wireless receiver circuit detected by the detection circuit, such that the first communication control circuit adjusts a transmitting power of the wireless transmitter circuit, to enable the output voltage and/or the output current of the wireless receiver circuit to match a charging stage where the battery presently is. | 2019-05-09 |
20190140471 | PORTABLE DEVICE DOCKING STATION CHARGE MECHANISM - An induction charging system ( | 2019-05-09 |
20190140472 | CHARGING MINIATURE DEVICES - Techniques for wirelessly charging small power receiving units are disclosed. An example power receiving unit includes a transportation mechanism to enable the power receiving unit to move and a wireless communication system that enables the power receiving unit to communicate with a plurality of other power receiving units. The power receiving unit is a master unit and the other power receiving units are nodes that take commands from the master unit. The power receiving unit also includes a controller to command the nodes to form a composite receive coil over a power transmitting unit and communicate with the power transmitting unit to start a charging session. | 2019-05-09 |
20190140473 | POWER CONTROLLER - One example discloses a power controller for a power device, wherein the power device includes a normal state, the power controller having: an input configured to receive fault detection signals attributable to the power device; an output configured to be coupled to the power device; and wherein the power controller is configured to send a state change signal over the output to change the normal state of the power device to a first fault state for a first time period in response to a first fault detection signal; and wherein the power controller is configured to send a state change signal over the output to change the first fault state of the power device to a second fault state for a second time period in response to a second fault detection signal. | 2019-05-09 |
20190140474 | TRANSMISSION MOUNTED ELECTRICAL CHARGING SYSTEM WITH DUAL MODE LOAD AND ENGINE OFF MOTIVE LOAD POWER - A system includes a PTO device that selectively couples to a driveline of a vehicle, a motor/generator electrically coupled to an electrical power storage system, and a shared load selectively powered by one of the driveline or the motor/generator. The PTO device further includes a coupling actuator that couples the shared load to the motor/generator at a first selected ratio in a first position, and couples the shared load to the driveline at a second selected ratio in a second position. | 2019-05-09 |
20190140475 | Solar Battery System for Low Temperature Operation - A power delivery device includes at least one solar panel, a battery pack comprising at least one battery, and a heater, wherein the device is configured to measure the temperature of the battery pack and power the heater to heat the battery pack if it is too cold for optimal charging. | 2019-05-09 |
20190140476 | TRANSFORMERLESS MULTI-LEVEL MEDIUM-VOLTAGE UNINTERRUPTABLE POWER SUPPLY (UPS) SYSTEMS AND METHODS - Systems and methods for supplying power at a medium voltage from an uninterruptible power supply (UPS) to a load without using a transformer are disclosed. The UPS includes an energy storage device, a single stage DC-DC converter or a two-stage DC-DC converter, and a multi-level inverter, each of which are electrically coupled to a common negative bus. The DC-DC converter may include two stages in a unidirectional or bidirectional configuration. One stage of the DC-DC converter uses a flying capacitor topology. The voltages across the capacitors of the flying capacitor topology are balanced and switching losses are minimized by fixed duty cycle operation. The DC-DC converter generates a high DC voltage from a low or high voltage energy storage device such as batteries and/or ultra-capacitors. The multi-level, neutral point, diode-clamped inverter converts the high DC voltage into a medium AC voltage using a space vector pulse width modulation (SVPWM) technique. The UPS may also include a small filter to remove harmonics in the AC voltage output from the multi-level inverter. | 2019-05-09 |
20190140477 | Micro-Grid Energy Management System - A micro-grid system blending utility power with power from multiple renewable sources including energy storage devices provides power factor correction using the renewable sources and energy storage devices by adjustment of associated converters. A controller maximizes power factor correction by utility source subject to a cost weighting of penalties for exceeding a power factor threshold. | 2019-05-09 |
20190140478 | CAPACITOR MODULE, RESONATOR, WIRELESS POWER TRANSMISSION DEVICE, WIRELESS POWER RECEPTION DEVICE, AND WIRELESS POWER TRANSMISSION SYSTEM - A capacitor module allows a current to equally flow through a plurality of capacitor elements mounted on a substrate having a first wiring that electrically connects the elements, which are adjacent to one another in a first direction among a plurality of elements constituting a element array, to one another, a second wiring that electrically connects the elements, which are positioned at one side of the plurality of arrays in the first direction, to one another in the second direction, a third wiring that electrically connects the elements, which are positioned at the other end side of the plurality of element arrays in the first direction, to one another in the second direction, a first connection terminal electrically connected to one end of the second wiring in the second direction, and a second connection terminal electrically connected to the other end of the third wiring in the second direction. | 2019-05-09 |
20190140479 | WRISTWATCH BAND AND CHARGING SYSTEM - A wristwatch band for a computerized watch base has a bracelet portion and a connector element. The bracelet portion extends in a length direction at least partially around a wrist of a wearer and has a power supply device to supply power to the computerized watch base. The connector element secures the computerized watch base to the bracelet portion. In the length direction, the bracelet portion may be discontinuous and terminate at first and second clasp ends. First and second clasp sections may be provided respectively at the first and second clasp ends of the bracelet portion, the first and second clasp sections releaseably connecting around the wrist of the wearer. Electrical connectors may be provided in each clasp section such that when the clasp is connected around the wrist of the wearer, an electrical connection is made from the first clasp end to the second clasp end. | 2019-05-09 |
20190140480 | WIRELESS POWER TRANSFER SYSTEMS, METHODS AND TRANSMITTERS THEREFOR - A transmitter comprises a power source; a transmit resonator electrically connected to the power source via an electrically small transmission line; and a metamaterial transmission line (MMTL) electrically connected between the power source and the electrically small transmission line. The transmit resonator comprises at least two electrodes; and at least one inductive coil electrically connected to the electrodes. The transmit resonator is configured to generate an electric field when excited by the power source. The electrically small transmission line is shorter in length than a wavelength of excitation of a power signal generated by the power source. The MMTL is configured to counteract an effect of the electrically small transmission line. The MMTL has a negative phase velocity (NPV). | 2019-05-09 |
20190140481 | SURFACE FLUX CONTROL FOR INDUCTIVE WIRELESS CHARGING SYSTEMS - The present disclosure describes techniques for estimating or measuring changes in peak magnetic flux levels based on the influence of a receive coil to the overall flux density over a transmit coil. The estimated or measured changes in peak magnetic flux levels are used to adjust currents in the coils to reduce the flux density while maintaining sufficient power transfer. In some aspects, an apparatus for controlling power transfer is provided. The apparatus includes a controller configured to receive or determine a measured or estimated magnetic flux level on or outside a housing configured to house a transmit coil. The controller is further configured to determine an electrical current level for at least one or both of the transmit coil or a receive coil that reduces a peak magnetic flux density level in proximity to the transmit coil based on the measured or estimated magnetic flux level. | 2019-05-09 |
20190140482 | APPARATUS FOR TRANSMMITING WIRELESS POWER AND APPARATUS FOR RECEIVING WIRELESS POWER - Provided is a wireless power reception apparatus for wirelessly receiving power from a wireless power transmission apparatus, the wireless power reception apparatus including a reception coil configured to receive power by a harmonic with an n*f0 frequency that is generated through electromagnetic induction with the wireless power transmission apparatus; a matching circuit configured to transfer the harmonic with the n*f0 frequency to a harmonic generator; the harmonic generator configured to generate at least one harmonic with an m*n*f0 frequency by applying a multiplication factor m to the transferred harmonic with the n*f0 frequency; a filter configured to filter the harmonic with the m*n*f0 frequency; and a harmonic transmission coil configured to transmit the filtered harmonic with the m*n*f0 frequency to the wireless power transmission apparatus, and to attenuate the harmonic with the n*f0 frequency that is generated from the wireless power transmission apparatus. | 2019-05-09 |
20190140483 | POWER TRANSMISSION DEVICE AND NON-CONTACT POWER FEEDING SYSTEM - A power transmission device has first to nth transmission-side coils (where n is an integer of 2 or more), and can transmit electric power to a power reception device by magnetic resonance. Before performing power transmission operation, the power transmission device feeds an evaluation alternating-current signal to the first to nth transmission-side coils one after another to acquire from the power reception device, by communication, power-related information based on the electric power received by the power reception device meanwhile. Based on the power-related information acquired, the power transmission device selects a transmission-side coil to be used in power transmission operation. | 2019-05-09 |
20190140484 | WIRELESS POWER TRANSMITTER - A wireless power transmitter includes: a power supply configured to supply a driving power; a first power transmitter including first bridge switching elements forming a first bridge circuit, and configured to receive the driving power to transmit a first power, wherein a magnitude of a first input voltage applied to the first bridge circuit is determined by a duty of at least one of the first bridge switching elements; a second power transmitter including second bridge switching elements forming a second bridge circuit, and configured to receive the driving power to transmit a second power, wherein a magnitude of a second input voltage applied to the second bridge circuit is determined by a duty of at least one of the second bridge switching elements; and a controller configured to output first and second power transmitting control signals respectively controlling the first bridge switching elements and the second bridge switching elements. | 2019-05-09 |
20190140485 | WIRELESS POWER TRANSMISSION APPARATUS AND WIRELESS POWER TRANSMISSION METHOD - A wireless power transmission apparatus can include a first coil transmitting a wireless power through a first power transmission scheme; a second coil transmitting a wireless power through a second power transmission scheme; and a control unit configured to transmit a detection signal for detecting a power transmission scheme, and receive a response signal corresponding to the detection signal during a predetermined time period, and determine a power transmission scheme according to the received the response signal, and transmit a power to the wireless power reception apparatus through the detected the power transmission scheme. | 2019-05-09 |
20190140486 | FIBO ELECTROMAGNETIC FIELD HARVESTER - In one or more particular implementations, a plurality of energy harvesting cells are provided, wherein each cell comprising a substrate supporting a least one electrical energy generating device, at least one control circuit for controlling at least the operation of the electrical energy generating device, wherein the energy harvesting cell is encased in a polymer Wherein the substrate has two opposing first sides each having a length L, a second side orthogonal to both first sides having a length equal to 2L, a third side opposed from the second side having a length of 4L, wherein the width of the substrate between the two opposing first sides is 8L. | 2019-05-09 |
20190140487 | Anytime Beaconing In A Wireless Power Transmission System - Systems and methods are described for operating a wireless power transmission system. The wireless power transmission system receives an encoded beacon signal delivered from and initiated by a wireless power receiver client configured to receive wireless power from the wireless power transmission system. The wireless power transmission system also delivers wireless power to the wireless power receiver client and simultaneously detects for additional encoded beacon signals delivered from and initiated by additional wireless power receiver clients. | 2019-05-09 |
20190140488 | Composite Integrated Circuits and Methods for Wireless Interactions Therewith - An integrated circuit (IC) includes a first circuit layer that includes a first wireless power transfer (WPT) device, a first chip electrically connected to the first circuit layer, and a first tracking circuit disposed in the first chip. The first WPT device may be configured to extract energy from an electromagnetic signal and provide an output voltage. The first tracking circuit may be powered by the output voltage of the first WPT device and may output tracking data in response to an instruction extracted from the electromagnetic signal. | 2019-05-09 |
20190140489 | Q-factor detection method - A method of measuring a Q-factor in a wireless power transmitter includes charging a capacitor in a LC tank circuit that includes a transmission coil to a voltage; starting a Q-factor determining by coupling the LC tank circuit to ground to form a free-oscillating circuit; monitoring the voltage across the capacitor as a function of time as the LC tank circuit oscillates; and determining the resonant frequency and the Q-factor from monitoring the voltage. | 2019-05-09 |
20190140490 | Techniques For Delivering Retrodirective Wireless Power - Techniques are described herein for delivering retrodirective wireless radio frequency (RF) power to a client device in a wireless power delivery environment. More specifically, embodiments of the present disclosure describe techniques for delivering directed wireless RF power to a client device in a wireless power delivery environment via multiple wireless power signals over multiple wireless power delivery paths. The client device includes one or more RF client transceivers that collectively have a radiation and reception pattern in a three-dimensional space proximate to the client device. The techniques identify the wireless power delivery paths over which wireless power signals can be delivered and deliver the wireless power in a manner that matches the client radiation and reception pattern in the three-dimensional space proximate to the client device. | 2019-05-09 |
20190140491 | Decoding method for signal processing circuit and signal processing circuit using the same - A decoding method for a signal processing circuit which receives a modulation data carried by a coil signal includes the following steps: determining a jitter in the coil signal; obtaining a trigger gap when the jitter appears; outputting a gap indicating signal when a length of the trigger gap is within a predefined range; determining whether a plurality of gap indicating signals appear in a first period and whether the gap indicating signals are scattered in the first period; setting a flag to a jitter status according to the above determination results; determining whether the flag is set to the jitter status during a second period, and filling a value in a time slot corresponding to the second period accordingly; and obtaining a data code of the modulation data according to the values filled in a plurality of time slots. | 2019-05-09 |
20190140492 | POWER TRANSMISSION DEVICE FOR CONTACTLESS POWER TRANSMISSION, AND METHOD FOR CONTACTLESS POWER TRANSMISSION - There is provided a power transmission device for contactless power transmission, comprising a transmitter device and a receiver device, wherein the transmitter device has a first transmitter with a first transmitting frequency and at least one second transmitter with a second transmitting frequency, the second transmitting frequency is different from the first transmitting frequency, and the first transmitter is galvanically separated from the second transmitter, wherein the first transmitter has a first axis of symmetry and the second transmitter has a second axis of symmetry, and the first axis of symmetry of the first transmitter and the second axis of symmetry of the second transmitter are at least approximately coincident in a transmitter axis of symmetry, and wherein the receiver device has a first receiver associated with the first transmitter and a second receiver associated with the second transmitter. | 2019-05-09 |
20190140493 | STATOR AND SINGLE-PHASE MOTOR - Provided is a stator of a single-phase motor with which an efficient magnetic circuit can be formed and a large torque can be obtained. The stator includes a pair of stator cores each having C-shape in a plan view and including distal end portions E disposed proximate to an outer peripheral surface of an axial rotor having a rotating shaft. The stator cores are disposed to opposite to each other with the rotor disposed therebetween in a first radial direction X orthogonal to an axial direction along a central axis line O of the rotating shaft. The stator cores include a pair of arm portions each extending in a radial direction intersecting the first radial direction X, and a base portion. The base portion connects ends of the arm portions on the opposite side from the distal end portions E, and extends in a circumferential direction encircling the central axis line O. | 2019-05-09 |
20190140494 | ELECTRIC MOTOR WITH LOW COGGING TORQUE - An electric motor with a low cogging torque comprises a stator and a rotor. The stator comprises a plurality of stator teeth and a plurality of stator slots, wherein a number of the plurality of stator teeth is equal to a number of the plurality of stator slots, and the number of the plurality of stator slots is S. The rotor is disposed inside the stator, wherein the rotor comprises a plurality of magnetic poles, and a number of the plurality of magnetic poles is P, a ratio S/P of the number of the plurality of stator slots to the number of the plurality of magnetic poles is 7.5N, where the N is a positive integer. | 2019-05-09 |
20190140495 | PERMANENT MAGNET ELECTRICAL MACHINE - A permanent magnet electrical machine has a rotor supporting a circumferential row of permanent magnets. The electrical machine further has a stator coaxial with the rotor and having a circumferential row of stator teeth carrying respective coils. The teeth provide paths for magnetic flux produced by the magnets, thereby electromagnetically linking the magnets and the coils when the rotor rotates relative to the stator. The teeth have respective core portions on which the coils are mounted, and respective tip portions located between the core portions and the rotor, neighbouring tip portions being circumferentially spaced from each other by respective gaps. Each pair of neighbouring tip portions has a bridge member and a thermal switching mechanism carried by a first tip portion of the pair. | 2019-05-09 |
20190140496 | POWER TERMINAL AND MOTOR INCLUDING SAME - An embodiment relates to a power terminal and a motor including the same, the power terminal comprising: a body; a pin portion extending upward from the body; a coupling portion formed at one end of the body and coupled to an end of a coil; a first protrusion protruding downward from the body; and a second protrusion protruding downward from the body, wherein the second protrusion is arranged to be spaced inward or outward form the body. As a result, the power terminal can improve the productivity through process simplification while satisfying a true position geometric tolerance. | 2019-05-09 |
20190140497 | ROTARY ELECTRIC MACHINE - Magnets are disposed between adjacent first claw portions and second claw portions so as to protrude toward a second end in an axial direction from tips of the first claw portions and so as to protrude toward a first end in the axial direction from tips of the second claw portions, magnet holding members include a base portion that covers a radially outer surface of the magnets, and the base portion includes a high magnetic resistance portion that is disposed in a direction that is perpendicular to a direction from the first claw portions toward the second claw portions and parallel to the radially outer surface of the magnets so as to cross a magnetic path from the first claw portions toward the second claw portions in a region between the adjacent first claw portions and second claw portions. | 2019-05-09 |
20190140498 | CLAW POLE HAVING SHAPED CLAW POLE SEGMENTS - A claw pole member for an electric machine including a plurality of claw pole segments. Each of the plurality of claw pole segments includes a radial projecting member, an axial outer surface extending to a cantilevered end portion, and an axial inner surface extending axially outwardly of the radial projecting member to a cantilevered end section. A first side surface extends between the axial outer surface and the axial inner surface from the radial projecting member to the cantilevered end portion and the cantilevered end section, and a second side surface extends between the axial outer surface and the axial inner surface from the radial projecting member to the cantilevered end portion and the cantilevered end section. The first and second side surfaces define a taper of the claw pole segment. Each of the first and second side surfaces includes a recessed portion that extends into the claw pole segment. | 2019-05-09 |
20190140499 | ROTATING ELECTRIC MACHINE - A rotating electric machine has a drive control part and a motor having a stator and a rotor. The drive control part has an external disturbance voltage instruction generation part, a switching signal generation part, first and second drive circuits, a current acquisition part detecting an external disturbance current flowing in three phase winding in each of a first coil and a second coil of the stator, and a phase angle estimation part detecting a phase angle of the rotor of the motor based on the detected external disturbance current. The drive control part adjusts turn-on/turn-off timings of switching signals so as to reduce a timing difference between corresponding line external disturbance voltages in the three phase windings more than the time difference without performing the timing adjustment while maintaining a duty ratio of these line external disturbance voltages to that when the timing adjustment is not performed. | 2019-05-09 |
20190140500 | PERMANENT MAGNET MOTOR - In a permanent magnet motor, a stator includes a stator core and a plurality of windings mounted to the stator core. A rotor includes a rotary shaft, a rotor core fixed to the rotary shaft, and a plurality of permanent magnets fixed to the rotor core. The rotor has a plurality of rotor magnetic poles opposed to the stator core. At least one of the rotor magnetic poles is formed of the rotor core. An axial length of the rotor core and an axial length of each of the permanent magnets are larger than an axial length of the stator core. | 2019-05-09 |
20190140501 | PATTERNED OFFSET POLE ROTOR - A rotor assembly has a rotor including a plurality of laminations each defining a plurality of poles arranged such that values of a pair of angles corresponding to each of the poles and defined between a magnetic axis of the pole and respective interpolar axes adjacent thereto are different. The values of the pairs define a repeating sequence around the lamination. The angles opposite an axis of rotation of the rotor are equal. | 2019-05-09 |
20190140502 | ROTOR OF MOTOR APPARATUS - A rotor of a motor apparatus may include: a shaft; a first core part including a first press-fit ring into which the shaft is press-fitted and a plurality of first cores arranged along the circumferential direction of the first press-fit ring so as to support magnets; a second core part including a plurality of second cores arranged along the circumferential direction of the shaft so as to face the first cores; and a third core arranged inside the second cores, and installed to support the first press-fit ring. | 2019-05-09 |
20190140503 | Axial-flow machine having a dimensionally stable assembly - An axial-flow machine has a dimensionally stable assembly, a machine shaft, a rotor fastened on the machine shaft and provided with a rotor hub, permanent magnets disposed circularly around the machine shaft, an adhesive and a brace, which is disposed on the outer circumference of the rotor and encircles it in closed manner and which urges the permanent magnets with a radially inwardly directed tension force, and stators disposed on both sides of the rotor. The permanent magnets are seated on the rotor hub via first adhesive joints equipped with adhesive and adjoin one another via second adhesive joints equipped with adhesive, wherein the permanent magnets, the rotor hub, the brace and the adhesive form the dimensionally stable assembly, the radial and axial dimensional stability of which is determined substantially by the radial tension force of the brace on the permanent magnets. | 2019-05-09 |
20190140504 | EC MOTOR WITH CAST ARMATURE SHAFT - An EC motor is provided having a stator, in which an armature is rotatably supported, the armature including an armature shaft, on which an armature core having a plurality of permanent magnets is held, the armature core being electrically insulated against the armature shaft with the aid of a casting compound, and a balance ring being provided on at least one axial end of the armature core, which is accommodated on the armature shaft by a central recess, a gap between the armature shaft and the central recess of the balance ring being filled with casting compound, and the permanent magnets being held in pockets of the armature core by casting compound. | 2019-05-09 |
20190140505 | ALUMINUM FORM-WOUND COIL AND WINDING STRUCTURE, AND STATOR FOR A GENERATOR OF A WIND TURBINE, AND METHOD FOR PRODUCING A STATOR - A form-wound coil for a stator of a generator of a gearless wind power installation. The form-wound coil comprises an electrical conductor, wherein the electrical conductor has a plurality of turns and also a first end and a second end. The first end has a first connecting part for connection to a connecting element and the second end has a second connecting part for connection to a further connecting element and the electrical conductor comprises aluminum or is substantially composed of aluminum. A connecting element for connecting a connecting part of a form-wound coil to a connecting part of a further form-wound coil. A winding structure for a stator and also to a stator and to a method for producing a stator. | 2019-05-09 |
20190140506 | ROTOR MECHANISM AND METHOD FOR MANUFACTURING THE SAME - The present disclosure provides a rotor mechanism includes a rotor core and a plurality of rotor bars. The rotor core has a plurality of insertion slots arranged along an edge of the rotor core. Each of the plurality of rotor bars has an insertion portion and two protruding portions. The insertion portions are respectively located in the plurality of insertion slots, wherein in each of the plurality of rotor bars, the two protruding portions are respectively connected to two opposite ends of the insertion portion and respectively protrude from two opposite sides of the rotor core, and the two protruding portions each has an extension direction, that has an angle with respect to an extension direction of the insertion portion, in order to clamp and fix the rotor core therebetween. In addition, the present disclosure also provides a method for manufacturing the rotor mechanism. | 2019-05-09 |
20190140507 | ROTATING ELECTRICAL MACHINE AND METHOD FOR MANUFACTURING SAME - A rotating electrical machine with a fractional slot structure includes concentrically wound stator coils, and a method of manufacturing the same. In a rotating electrical machine, a plurality of unit coils included in the stator coil are allocated into a first pole coil and a second pole coil in units of slots that oppose a pair of movable element magnetic poles. Further, each pole pair coil forming a plurality of phase coils is provided with two types of the unit coils, namely a full-coil and a half-coil. In addition, in each pole pair coil, the coil pitches between pairs of coil sides of the plurality of unit coils forming said pole pair coil are different from one another, and each pole pair coil is provided with one half-coil. | 2019-05-09 |
20190140508 | ELECTRIC LINEAR ACTUATOR - Provided is an electric linear actuator that enables reduction of the mounting space and reduction of costs. An electric motor of this electric linear actuator is an axial gap motor including a stator and a rotor which are disposed such that orientations of magnetic poles which generate interlinkage flux which contributes to torque generation are parallel to the rotation axis of the electric motor. Further, a linear motion mechanism and the electric motor are disposed in line along the same axis which serves as the axis of a rotation input and output shaft of the linear motion mechanism. First and second coil terminals have extended portions extended in the outer-diameter side in the radial direction with respect to the rotation axis, and the extended portions are electrically connected to a control device through a wiring mechanism. | 2019-05-09 |
20190140509 | ROTARY ELECTRIC MACHINE - In a rotary electric machine, each of coils includes coil terminals led out from a coil main body. The coil terminals are connected to bus bars. When a diameter of each of the bus bars is defined as D, a diameter of a cross section of a coil wire is defined as “d”, a Young's modulus of the coil wire is defined as E, a linear expansion coefficient of a material of the bus bars is defined as α1, a linear expansion coefficient of a material of a stator core is defined as α2, and an estimated temperature difference between a room temperature and a use environment temperature is defined as ΔT, a length L of at least one of the coil terminals from an end on the coil main body side to a connecting portion to the bus bar satisfies the following expression: | 2019-05-09 |
20190140510 | ROTOR WITH MAGNET PROTECTION MECHANISM - The present invention provides a rotor with magnet protection mechanism comprising a core, a plurality of magnets and a magnet protection mechanism. The core comprises a plurality of slots in a radial arrangement, and the magnets are held within the slots. The magnet protection mechanism is set against the core and comprises a plurality of segments corresponding to the slots in a circular configuration. | 2019-05-09 |
20190140511 | VEHICLE MOTOR UNIT - In a vehicle motor unit comprising: a motor; and a storage housing storing the motor, the motor including a rotor arranged rotatably around a rotation axis, a stator disposed on an outer circumferential side of the rotor, and a high voltage portion disposed on the stator, an outer circumferential surface of the stator is configured to surface contact with a part of a wall surface of the storage housing receiving a larger collision load at the time of a vehicle collision as compared to the other parts. | 2019-05-09 |
20190140512 | MOTOR WITH BACKING RING DIECAST IN ROTOR CAN - An electric fan includes a plurality of blades and an electric motor for rotating the blades. The electric motor includes a stator and a rotor rotatable relative to the stator about an axis. The rotor includes a backing ring and a diecast rotor can. The can includes a non-machined sidewall that is diecast integrally as part of the rotor can. The sidewall extends about the axis. The rotor can is diecast in an overlying relationship with at least part of the backing ring, with the sidewall and backing ring being securely interengaged so as to restrict relative shifting therebetween. | 2019-05-09 |
20190140513 | ROTOR AND MOTOR INCLUDING SAME - The present invention comprises a rotor core and a cover disposed on the rotor core, wherein the cover includes a body part and a plurality of wing parts formed on the body part, the wing part is disposed between an outer boundary, which is a circular curve, and an inner boundary, which is a circular curve, the wing part includes an inner part and an outer part, the inner part forms a first inlet angle at a first point and forms a first outlet angle at a second point, the outer part forms a second inlet angle at a second point and forms a second outlet angle at a third point, the first point is positioned at the inner boundary, the second point is positioned at an intermediate boundary, which is a circular curve, disposed between the outer boundary and the inner boundary, and the third point can be positioned at the outer boundary. | 2019-05-09 |
20190140514 | SYSTEMS AND METHODS FOR PROVIDING ENHANCED MECHANICAL/ELECTRICAL ENERGY STORAGE - An energy apparatus that stores and disperses energy, the energy apparatus including: (1) an energy object that experiences movement so as to store kinetic energy in the energy object, the energy object including a magnet assembly through which electrons are driven resulting in electric output from the magnet assembly, and the electric output dependent on experienced EMF (electro-motive force) that is experienced by the magnet assembly; (2) a supporting structure that supports the energy object while providing for the movement of the energy object; (3) a first tuning magnet that is supported adjacent the energy object, the first tuning magnet positionable throughout a range of positions, the positions including a first position and a second position; (4) a second tuning magnet that is supported adjacent to the energy object; | 2019-05-09 |
20190140515 | SPEED REDUCING DEVICE HAVING POWER SOURCE - A speed reducing device includes a motor and a speed reducing mechanism. The motor includes a stator portion and a rotor portion. The rotor portion includes a first eccentric ring and a second eccentric ring. The speed reducing mechanism is partially accommodated within the rotor portion. The speed reducing mechanism includes a first roller assembly, a second roller assembly, a third roller assembly, a first cycloid disc set and a second cycloid disc set. The first roller assembly includes at least one first roller. The second roller assembly includes at least one second roller. The third roller assembly includes an output shaft and at least one third roller. The first cycloid disc set is mounted around the output shaft and disposed within the first eccentric ring. The second cycloid disc set is mounted around the output shaft and disposed within the second eccentric ring. | 2019-05-09 |
20190140516 | BRUSHLESS MOTOR FOR A POWER TOOL - A brushless direct current motor for a power tool. The motor includes a stator assembly including a stator core having stator laminations with an annular portion and inwardly extending stator teeth. The motor also includes a rotor assembly including a rotor core having rotor laminations and defining a central aperture that receives an output shaft. The rotor assembly also includes a rotor end cap on a first side of the rotor core having a bearing holder and defining a channel, wherein the channel is open on a side of the rotor end cap facing the rotor core. The motor further includes a bearing provided in the bearing holder that couples the rotor end cap to the output shaft and a position sensor board assembly provided in the channel of the rotor end cap and configured to provide position information of the rotor core to a motor controller. | 2019-05-09 |
20190140517 | PROCESSOR CONTROLLED ENERGY HARVESTER SYSTEM - Computer-processor controlled energy harvester system. The system uses a plurality of oscillating weight type energy collectors, each configured to store the energy from changes in the system's ambient motion as stored mechanical energy, often in a compressed spring. The energy collectors are configured to move between a first position where the energy collector stores energy, to a second position where the energy collectors release stored energy to a geared electrical generator shaft, thus producing electrical energy, often stored in a battery. A plurality of processor controlled electronic actuators, usually one per energy collector, control when each energy collector stores and releases energy. The processor can use accelerometer sensors, battery charge sensors, and suitable software and firmware to optimize system function. The system can use the energy for various useful purposes, including sensor monitoring, data acquisition, wireless communications, and the like, and can also receive supplemental power from other sources. | 2019-05-09 |
20190140518 | OPERATING A WIND TURBINE GENERATOR COOLING SYSTEM - Provided is a method for removing moisture from a cooling air filter installed for filtering first cooling air for cooling a generator from a first end, the method including: pressurizing second cooling air cooling the generator from a second end; allowing the second cooling air having received heat from the generator to pass through the cooling air filter, in order to absorb and thereby reduce moisture from the cooling air filter. | 2019-05-09 |
20190140519 | COOLED HOUSING FOR THE STATOR OF A DIRECT DRIVE - In a cooled housing for the stator of a direct drive, cooling ducts extend on an outer peripheral surface of the housing, the cooling ducts being sealed by an annular cover extending around the peripheral surface. The cover includes openings as an inlet and outlet for a cooling medium, and the cover is arranged such that sections of the peripheral surface of the housing remain free. | 2019-05-09 |
20190140520 | MOTOR APPARATUS - Provided is a motor apparatus in which an increase in its size in a radial direction of a rotation shaft of a motor can be suppressed while securing redundancy of control of driving of the motor. A motor apparatus includes a motor having a rotation shaft, a first control circuit board where a first power circuit and a first control circuit are mounted, and a second control circuit board where a second power circuit and a second control circuit are mounted. The control circuit boards are arranged with an overlapping portion when viewed along an axial direction on an extension line of an axis of the rotation shaft. The overlapping portion intersects the extension line of the rotation shaft of the motor. | 2019-05-09 |
20190140521 | Slip Ring System and Electrical Machine Having a Slip Ring System of This Kind - A slip ring system for an electrical machine includes slip rings, which are arranged such that they can rotate about a rotation axis, for transmitting current to the electrical machine; contact brushes which are in contact with the slip rings; and an impeller which can be fitted so as to surround the rotation axis and in a rotationally fixed manner in relation to the slip rings and is adjusted to generate an air flow in a plane perpendicular to the shaft. The impeller has two disc-shaped side walls which surround the shaft and between which a plurality of vanes extend. A filter surrounds the impeller so that an imaginary radial extension of the impeller meets the filter. | 2019-05-09 |
20190140522 | METHOD AND APPARATUS FOR REDUCING ELECTROMAGNETIC INTERFERENCE - A vehicle light assembly, a system, and a method for reducing electromagnetic interference are provided. The vehicle light assembly includes a light source, DC-DC conversion circuitry including a switch, and a microcontroller. The microcontroller is configured to generate a reference voltage, the reference voltage being changed periodically within a predetermined range, and drive the switch associated with the DC-DC conversion circuitry with a signal based on at least the reference voltage. | 2019-05-09 |
20190140523 | Drive Assembly, in Particular Hydraulic Assembly of an Electronically Slip-Controllable Vehicle Brake System - A drive assembly has a housing block, on which there is arranged an electrical machine. The latter has a working shaft mounted in a shaft bore of the housing block and the rotational position of which is detected by a sensor device formed by a signal transmitter and a signal receiver comprising evaluation electronics. The shaft bore is closed by a cover, which is arranged between signal transmitter and signal receiver. The cover is formed in one piece with an electronics housing of the signal receiver. A centering device for the signal receiver is formed on the housing block on the electronics housing. The disclosed drive assembly simplifies the construction, functional testing and mounting of the signal receiver and at the same time improves the protection thereof against damaging environmental influences. | 2019-05-09 |
20190140524 | ROTARY POSITION SENSOR INCLUDING SWITCH AND PATTERNED MAGNET - A rotary position sensor comprising a rotatable patterned ring magnet, which in one embodiment is mounted on the output shaft of an actuator, and includes a plurality of pairs of North and South Pole sections extending around the circumference of the ring magnet in an alternating relationship and defining a plurality of circumferentially extending magnetic field switch points spaced predetermined distances on the ring magnet corresponding to a plurality of predetermined unique positions of the ring magnet adapted for sensing by a switch such as Hall Effect switch. In one embodiment, the ring magnet includes a plurality of pairs of North and South Pole sections and switch points on the ring magnet of different predetermined lengths and predetermined locations respectively corresponding to a plurality of predetermined ring magnet positions to be sensed. | 2019-05-09 |
20190140525 | CONDUCTOR ARRANGEMENT AND TRANSPORTABLE ELECTRICAL DRIVE DEVICE - The invention relates to a conductor assembly for transmitting electrical power in a mobile system, in particular in a land, air or water vehicle, comprising an inner conductor ( | 2019-05-09 |
20190140526 | LIFE ESTIMATION SYSTEM - The life estimation system is a life estimation system that estimates a life of the reduction gear including a reduction mechanism. The life estimation system includes a sensor that is to be mounted onto the reduction gear and detects information for identifying a stress generated in a specific part of the reduction gear, and an estimating unit that identifies the stress generated in the specific part based on detection information obtained by the sensor and estimates the life of the specific part based on the identified stress. | 2019-05-09 |
20190140527 | POWER SYSTEMS - The invention relates to a power system that includes an electrical machine, (e.g., a motor or generator). The electrical machine has a stator with a stator winding connected to a power converter. The power system includes an assembly to reduce, and optionally eliminate, common mode currents between the electrical machine and the power converter. The assembly includes a stator frame connected to ground potential and an electrical insulator (e.g., a plurality of stator mounts) located between the stator frame and the stator. | 2019-05-09 |
20190140528 | ADAPTER FOR MOTOR REPLACEMENT AND MOTOR REPLACEMENT METHOD - An adapter for motor replacement includes fixing portions. The adapter has a shape of being placeable so as to be bridged between a housing that fixes a motor and a pulley that is fixed to the motor and transmits a rotary drive force via a belt and to avoid a space for removing the motor from the housing. The fixing portions are respectively fixed to the housing, to which the motor is fixed, and the pulley fixed to the motor. | 2019-05-09 |
20190140529 | METHOD FOR MANUFACTURING ROTOR, AND ROTOR - A rotor includes a plurality of permanent magnets inclined relative to the axial direction of a rotor core. A method for manufacturing the rotor includes producing each of the permanent magnets, and providing the permanent magnets on the outer periphery of the rotor core. The producing of each of the permanent magnets includes working a magnet block into a shape such that a first surface and a second surface have a parallelogram shape, a third surface and a fourth surface are parallel to each other, and a fifth surface and a sixth surface extend planarly from the third surface to the fourth surface. The providing of the permanent magnets includes arranging the permanent magnets so that, between the permanent magnets adjacent to each other, the fifth surface and the sixth surface face each other. | 2019-05-09 |
20190140530 | Rotary Electric Machine and Drive System Using Same - There is provided a rotary electric machine that ensures improving a maximum torque and a rated power factor while reducing an increase in a starting current. In view of this, the rotary electric machine includes a shaft, a rotor, and a stator. The rotor is fixed to an outer periphery of the shaft. The stator is located so as to surround an outer periphery of the rotor. The rotor includes a rotor iron core including a plurality of rotor slots located at predetermined intervals in a circumferential direction and rotor bars inserted into the rotor slots. Rotor slits communicate with outer peripheral sides of the rotor slots. The rotor slits have a width ws in a circumferential direction. The width ws is smaller than a height hs in a radial direction of the rotor slit, and when a rated current is denoted as I | 2019-05-09 |
20190140531 | AXIAL FLUX GENERATORS - An axial flux rotary generator comprising: two magnetic annuli; a coil annulus; the magnetic annuli and coil annulus having a common axis; the two magnetic annuli defining a plurality of magnetic fields around the common axis extending across a gap between the two magnetic annuli and the coil annulus having a sequence of coils around the common axis in the gap such that lines of magnetic flux from the magnetic fields cut the turns of the coils and thus induce electric current in the coils as the magnetic annuli are caused to rotate relative to the coil annulus; characterised in that the coils comprise a wound flat strip conductor. | 2019-05-09 |
20190140532 | Magnetic circuit structure of BLDC motor and permanent magnet embedded rotor thereof - A magnetic circuit of a BLDC motor includes a stator iron core, a rotor iron core, permanent magnets and a magneto-sensitive sensor. The permanent magnets are longer than the rotor iron core; the magneto-sensitive sensor is provided at a protrusion of the rotor iron core and far away from an impact of a magnetic field of a stator; a magnetic screening slot and a positioning convex portion are respectively provided at each end of said permanent magnet slot; the magneto-sensitive sensor senses a magnetic field of two ends of each permanent magnet, rather than a combined magnetic field of the rotor iron core and each permanent magnet, so as to effectively reduce Hall signal jitters caused by irregular and unclear boundaries between two magnetic poles on a surface of the rotor. A permanent magnet embedded rotor thereof is also disclosed. | 2019-05-09 |
20190140533 | ELECTRIC TOOTHBRUSH AND ITS DRIVE MOTOR - Provided are an electric toothbrush and its drive motor, which comprises a U-shaped magnetic yoke, a rotary output component, a second magnetic yoke and four permanent magnets. The two support legs of the U-shaped yoke are respectively wound with coils, enabling the two leg end faces to generate alternating magnetic poles under the control of circuit. The four magnets are centrosymmetrically disposed about a rotatory central line, the first and the fourth magnet are of the same polarity, the second and the third magnet are of the same polarity; the first and the second magnet are of the opposite polarity, disposed corresponding to the first leg; the third and the fourth magnet are of the opposite polarity, disposed corresponding to the second leg. Under the control of circuit, the driving permanent magnets drive the second yoke and the rotary output component to reciprocatively rotate about the rotatory central line. | 2019-05-09 |
20190140534 | SWITCHING REGULATOR AND CONTROL CIRCUIT THEREOF - A switching regulator includes: a controller power ON reset (POR) circuit, a controller post-POR signal generation circuit, and a pulse width modulation (PWM) signal generation circuit. The controller post-POR signal generation circuit switches the controller post-POR signal to a ready level after a controller pre-POR signal is switched to a controller reset-accomplished level and a driver signal starts switching levels to operate a power switch. The PWM signal generation circuit sets a duty ratio of a PWM signal to a predetermined minimum duty ratio after the controller pre-POR signal is switched to the controller reset-accomplished level and before the controller post-POR signal is switched to a ready level. | 2019-05-09 |
20190140535 | PULSE WIDTH MODULATION UPSHIFT AT PARTIAL LOAD TO IMPROVE TOTAL HARMONIC CANCELLATION PERFORMANCE FOR CHILLER APPLICATIONS - A pulse width modulation (PWM) based active harmonic filter (AHF) system including a controller configured to adjust a load on the system from a first to a second load, the first load being greater than the second load, wherein the controller is configured to adjust a frequency of the system from a first to a second frequency when the load is equal to the second load, and wherein the second frequency is greater than the first; a first harmonic compensator configured to filter a first order of harmonics of a load when the load is equal to the second load; and a second harmonic compensator configured to filter a second order of harmonics of the load in parallel with the first order of harmonics when the load is equal to the second load and frequency equals the second frequency, the second order of harmonics being greater than the first order. | 2019-05-09 |
20190140536 | SEMICONDUCTOR DEVICE, POWER CONVERSION DEVICE, DRIVING DEVICE, VEHICLE, AND ELEVATOR - A semiconductor device according to an embodiment includes: a first capacitor having a first end and a first the other end, the first end for electrically connecting to at least one of a first electrode and a second electrode of a transistor having the first electrode, the second electrode, and a gate electrode; a first diode having a first anode and a first cathode, the first anode electrically connected to the first the other end; a second capacitor having a second end and a second the other end, the second end electrically connected to the first cathode; a sample and hold circuit electrically connected to the first cathode and the second end; a switch electrically connected in parallel with the second capacitor between the second end and the second the other end; and a second diode having a second anode and a second cathode, the second cathode electrically connected to the first the other end and the first anode. | 2019-05-09 |
20190140537 | DUAL OUTPUT CHARGE PUMP - According to some implementation, a charge pump includes a boost charge pump circuit and a buck charge pump circuit sharing a common flying capacitance. In some implementations, the boost pump circuit includes an input node and a boosted-voltage output node, and the buck charge pump circuit includes the input node and a divided-voltage output node. In some implementations, the charge pump of claim | 2019-05-09 |
20190140538 | APPARATUS COMPRISING MULTIPLE POWER CONVERTERS WITH REAL OR ARTIFICAL HYSTERESIS - An apparatus is described, comprising: a first power converter with real or artificial hysteresis; a second power converter with real or artificial hysteresis; and a control circuit configured to output a control signal dependent on a phase difference or frequency difference between the first and second power converters; wherein the apparatus is configured such that a magnitude of hysteresis of at least one of said first and second power converters is controlled by said control signal. | 2019-05-09 |
20190140539 | CONSTANT OFF-TIME CONTROL METHOD FOR BUCK CONVERTERS USING COUPLED INDUCTORS - A system that includes a regulator unit is disclosed. The regulator unit includes first and second phase units whose outputs are coupled to through first and second coupled inductors, respectively, to a power supply node of a circuit block. The first phase unit may be configured to discharge, for a first period of time, the power supply node through the first inductor in response to determining a sense current is greater than a demand current. The operation of the second phase unit may follow that of the first phase unit after a second period of time has elapsed. | 2019-05-09 |
20190140540 | MULTIPLE INPUT/MULTIPLE OUTPUT SWITCHING CONVERTER - In accordance with embodiments of the present disclosure, an apparatus may include a power converter having a power supply input for receiving an input power supply voltage generated by a power supply, an output for generating an output voltage to a load, and a power inductor coupled between the power supply input and the output may and further include an energy storage element coupled to the power supply input, the power inductor, and the output such that operation of the power inductor is split temporally between delivering energy to the energy storage element and delivering energy to the load, and operation of the energy storage element is split temporally between delivering energy to the load and receiving energy from one or both of the power supply and the load. | 2019-05-09 |
20190140541 | Methods and Apparatus for Adaptive Timing for Zero Voltage Transition Power Converters - Timing circuitry causes: a first closed signal on a first switch control output before a signal on a second switch control output changes from a second closed signal to a first open signal; the first switch control output to provide a second open signal after a first selected time after the second switch control output changes from the second closed signal to the first open signal; and a third switch control output to provide a third closed signal a second selected time after the first switch control output changes from the first closed signal to a third open signal. A beginning of the first closed signal to a beginning of the first open signal is based on a later of: a current through a switch connected to the second switch control output exceeding a threshold current; and a clocked time after the beginning of the first closed signal. | 2019-05-09 |