30th week of 2021 patent applcation highlights part 67 |
Patent application number | Title | Published |
20210234358 | SOLID STATE CIRCUIT INTERRUPTER - A circuit interrupter including a current sensor having a normal sensor output and an over current detection output, a solid state switch module structured to have a closed state to allow current to flow through the circuit interrupter and an open state to interrupt current flowing through the circuit interrupter, a gate driver structured to control the solid state switch module including a desaturation function output, wherein the gate driver is structured to cause the solid state switch module to interrupt current flowing through the circuit interrupter when the DESAT function output changes to the on state, and an electronic trip circuit structured to output a tri when the normal sensor output reaches a first threshold level or the overcurrent detection output changes to the on state. | 2021-07-29 |
20210234359 | MECHANICAL SPARK CONTAINMENT FOR DISCONNECTOR - In one aspect, the application provides an electrical system including a conductor, a ground, an arrester electrically connected to the conductor, and a disconnector assembly electrically connected between the arrester and the ground. The disconnector assembly includes an isolator configured to perform an operating function in response to the occurrence of an event and a housing configured to surround the isolator. The isolator includes a first terminal electrically connected to the arrester by a first wire and a second terminal electrically connected to the ground by a second wire. The housing includes a first opening through which the first terminal extends, a second opening through which the second terminal extends, and a retention mechanism configured to hold the isolator in place relative to the arrester. | 2021-07-29 |
20210234360 | PWM CONTROL FOR POWER DISTRIBUTION CIRCUIT INTERRUPTING DEVICES - The present disclosure provides controllers for power distribution network circuit interrupting devices and provides electronic control circuits for inclusion in such controllers. The electronic control circuit has a boost circuit, a capacitor storage unit and a pulse width modulator control circuit. The boost circuit boosts an input voltage to a value to supply sufficient energy to a protective relay solenoid to energize the solenoid. The capacitor storage unit stores the boosted voltage from the boost circuit. The pulse width modulator control circuit is responsive to a control and enable circuit to selectively enable energy from the capacitor to energize the one or more protective relays in power distribution system circuit interrupting device. | 2021-07-29 |
20210234361 | SOLID STATE CIRCUIT INTERRUPTER - A circuit interrupter including a current sensor having a normal sensor output and an over current detection output, a solid state switch module structured to have a closed state to allow current to flow through the circuit interrupter and an open state to interrupt current flowing through the circuit interrupter, a gate driver structured to control the solid state switch module including a desaturation function output, wherein the gate driver is structured to cause the solid state switch module to interrupt current flowing through the circuit interrupter when the DESAT function output changes to the on state, and an electronic trip circuit structured to output a trip signal to the gate driver when the normal sensor output reaches a first threshold level or the overcurrent detection output changes to the on state. | 2021-07-29 |
20210234362 | OVERVOLTAGE PROTECTION - An embodiment of the present disclosure relates to an electronic circuit including a first switch coupling a first node of the circuit to an input/output terminal of the circuit; a second switch coupling the first node to a second node of application of a fixed potential; and a high-pass filter having an input coupled to the terminal and an output coupled to a control terminal of the second switch. | 2021-07-29 |
20210234363 | SYSTEM AND METHOD FOR IMPROVED DETECTION OF INTERRUPTION OF POWER SUPPLIED BY AN AC MAINS TO A DEVICE - Provided is a method for monitoring DC electrical power. The method including determining a rate of change of the DC electrical power, determining whether the rate of change of the DC electrical power is greater than a predetermined threshold, when the rate of change of the DC electrical power is greater than the predetermined threshold, determining whether the rate of change of the DC electrical power is greater than the predetermined threshold for a predetermined period of time, and when the rate of change of the DC electrical power is greater than the predetermined threshold for the predetermined period of time, sending a signal indicating an interruption in the DC electrical power. | 2021-07-29 |
20210234364 | CUT-OFF CIRCUIT DIAGNOSTIC DEVICE - A cut-off circuit diagnostic device includes a motor control module that controls a motor, and an external safety module that is detachably attached to the motor control module. The motor control module includes: a motor drive unit that has an inverter circuit for controlling a voltage applied to the motor by pulse width modulation control and a drive circuit for driving a power element of the inverter circuit; a cut-off circuit that cuts off power supply to the drive circuit; and a first cut-off circuit diagnostic unit that has a first diagnosis pulse generator for generating a first signal to control the cut-off by the cut-off circuit and that detects whether or not the power supply to the drive circuit is cut off according to the first signal. The external safety module includes a second cut-off circuit diagnostic unit that has a second diagnosis pulse generator for generating a second signal to control the cut-off by the cut-off circuit and that detects whether or not the power supply to the drive circuit is cut off according to the second signal. The motor control module further includes a function switching unit that supplies the second signal to the cut-off circuit when the external safety module is attached to the motor control module, and supplies the first signal to the cut-off circuit when the external safety module is not attached to the motor control module. | 2021-07-29 |
20210234365 | SYSTEMS AND METHODS FOR AUXILIARY POWER DROPOUT PROTECTION - The disclosure features circuits and methods for protecting transistors of a wireless power receiver, which can be controlled by gate drivers powered by an auxiliary power source. The circuit can include a comparator configured to generate a signal indicating a comparison of a value of the auxiliary power source to a predetermined threshold, and a fault latch coupled to the comparator. The fault latch can be configured to trigger based on the generated signal and transmit a signal to respective inputs of the gate drivers to cause a latched-on state of respective gates of the transistors. Switches respectively coupled to the gate drivers can be configured to disconnect respective outputs of the gate drivers from the respective transistor gates. Gate hold-up circuits respectively coupled to the respective transistor gates can be configured to maintain the latched-on state of the respective transistor gates for a period of time. | 2021-07-29 |
20210234366 | GATE DRIVER IMPLEMENTATIONS FOR SAFE WIRELESS POWER SYSTEM OPERATION - The disclosure features systems and methods for protecting transistors of a wireless power receiver. Systems can include a gate driver configured provide a control signal to control switching of the transistor gate such that power is transmitted to a load coupled to the receiver; and a controller coupled to the gate driver and configured to generate a protection signal. The protection signal can include (i) a fault signal indicating a fault in one or more components of the receiver; (ii) a signal indicating that the transistor gate should be latched; and/or (ii) at least one undervoltage signal indicating that an undervoltage condition exists in a power supply of the gate driver. Based on the generated protection signal, the gate driver can be configured to adjust the provided control signal to latch the transistor gate such that power is not transmitted to the load. | 2021-07-29 |
20210234367 | Modular Power Distribution Panel - A power distribution panel for distributing power to a plurality of components. A modular frame may removably attach in an aperture of a side of a chassis. A first module may be removably attached in an opening of the modular frame. A second module, different from the first module, may be removably attached in the opening of the modular frame. | 2021-07-29 |
20210234368 | POWER TRADING MANAGEMENT APPARATUS AND POWER TRADING SYSTEM - A power trading management apparatus receives power supply application data including the amount of supplied power and a supply period from a supply-side computer, and receives power demand application data including the amount of requested power and a request period from a demand-side computer, determines whether or not a first trading condition in which the supply period is a period earlier than the request period is satisfied, decides the amount of transmitted power for a power demand apparatus based on an amount of power of the amount of supplied power or the amount of requested power when the first trading condition is satisfied, and stores the amount of supplied power in a power storage and discharge apparatus from a power supply apparatus in the supply period and discharges the amount of transmitted power decided by the decision processing to the power demand apparatus from the power storage and discharge apparatus. | 2021-07-29 |
20210234369 | SCALABLE RULES-BASED OBJECT-ORIENTED POWER SYSTEM CONTROL SCHEME - Systems and apparatuses include a non-transitory computer readable media having computer-executable instructions embodied therein that, when executed by a circuit of a power system, causes the power system to perform functions to activate and deactivate routes. The functions include determining a plurality of source objects, each including source functions and being assigned a position on a one-line topology; determining one or more switch objects, each including switch functions and being assigned a position on the one-line topology; determining one or more bus objects, each including bus functions and being assigned a position on the one-line topology; determining one or more load objects, each including load functions and being assigned a position on the one-line topology; and allocating each object to one of a plurality of controllers, each of the controllers structured to cooperatively perform the source functions, the switch functions, the bus functions, and the load functions to provide operation of the system. | 2021-07-29 |
20210234370 | SYSTEM AND METHOD FOR POWER CONVERTER CONTROL FOR VIRTUAL IMPEDANCE - A power converter controller for virtual impedance realization is provided that comprises: a sampling circuit configured to sample a real grid interface voltage at terminals of the power converter; a first operation block, which may be a subtractor, for performing a first operation on a reference voltage signal and the sampled real grid interface voltage signal of the power converter to generate a first voltage signal; a second operation block that may consist of a divider for dividing the first voltage signal by an amplification factor to generate a second voltage signal; and third operation block, which may be an adder, for adding the sampled real grid interface voltage signal to the second voltage signal, and a third voltage signal to generate a command voltage signal for realization at the DC-to-AC voltage conversion output, wherein the amplification factor is a real number greater than or equal to 1. | 2021-07-29 |
20210234371 | Extremum Seeking Control of Distributed Energy Resources with Decaying Dither and Equilibrium-based Switching - Embodiments relate to an operating system coupled to and controlling at least one Distributed Energy Resource (DER) in a smart grid and includes an electricity distribution network and a 2-dimensional Extremum Seeking (2D-ES) controller coupled to network. The electricity distribution network has first and second inputs and one output and maps all active power and reactive power inputs to the smart grid providing measurements of an objective function. The 2D-ES controller controls the DER and includes an active power loop and a reactive power loop. The active power loop is in communication with the first input and the output, governs active power contribution, and receives measurements of the objective function which contain static and oscillatory components. The reactive power loop is in communication with the second input and the output, governs reactive power contribution, and receives measurements of the objective function which contain static and oscillatory components. | 2021-07-29 |
20210234372 | POWER MANAGEMENT SYSTEM - A town storage battery power conversion device outputs an AC voltage to a distribution system during a power failure. Electric power generated by a solar cell installed in each consumer house is converted into an AC voltage by a solar cell power conversion device and output to a consumer premises distribution system to which a load is connected. In an autonomous operation during a power failure, an operation plan for a distributed power supply is updated in a cycle longer than a cycle of an operation plan for a town storage battery. In the autonomous operation, the town storage battery power conversion device changes an AC voltage frequency according to a difference between electric power output from the town storage battery and the operation plan. The solar cell power conversion device has a function of modifying a control target value for the solar cell according to the AC voltage frequency. | 2021-07-29 |
20210234373 | ENERGY SYSTEM AND METHOD AND CONTROLLING SAME - An energy system that has components connected by buses, and a method and an apparatus for controlling same is provided. The components are labelled as either non-fixed or fixed, depending on whether their energy operating point is specified. The control of the energy system includes performing an iteration process via all of the buses. A respective iteration for the respectively selected bus includes attempting to balance a power budget of the selected bus by specifying the energy operating points of components connected to the respective bus that are labelled as non-fixed. If the balancing for the respective bus is successful, all of the components connected to the respective bus are labelled as fixed; otherwise, the label of components connected to the respective bus is converted from fixed to non-fixed and a fresh iteration for the bus is triggered. | 2021-07-29 |
20210234374 | DISTRIBUTED DISPATCH METHOD FOR UBIQUITOUS POWER INTERNET OF THINGS BASED ON TRANSITION MATRIX - The disclosure provides a distributed dispatch method for ubiquitous power Internet of Things based on a transition matrix. The ubiquitous power Internet of Things includes generators. The method includes: S | 2021-07-29 |
20210234375 | ENERGY MANAGEMENT SYSTEM, INDEPENDENT SYSTEM, AND OPERATION METHOD OF INDEPENDENT SYSTEM - Regarding an independent system, a prediction value of charged/discharged power of a storage battery is calculated, based on a prediction value of generated power of a renewable energy power generator, a prediction value of demanded power of a control device, and a prediction value of demanded power of a load on an assumption that a power supply limit is applied to the load. Whether or not charge or discharge of the storage battery with charged/discharged power matching the prediction value of the charged/discharged power of the storage battery is possible is determined. The power supply limit is tightened when it is determined that the charge or discharge of the storage battery is not possible. A limit data indicating a detail of the power supply limit is output when it is determined that the charge or discharge of the storage battery is possible. | 2021-07-29 |
20210234376 | CONFIGURABLE REDUNDANT SYSTEMS FOR SAFETY CRITICAL APPLICATIONS - In certain aspects, a device comprises a first processing unit; a first power distribution network coupled to the first processing unit; a first decoupling capacitor coupled to the first power distribution network; a second processing unit configured to be identical to the first processing unit; a second power distribution network coupled to the second processing unit; and a second decoupling capacitor coupled to the second power distribution network, wherein the second decoupling capacitor is configured to have different effect on the second power distribution network than the first decoupling capacitor on the first power distribution network. | 2021-07-29 |
20210234377 | BATTERY CHARGE TERMINATION VOLTAGE ADJUSTMENT - In some examples, a control unit is configured to adjust charge termination voltage of a rechargeable energy storage device. The control unit is adapted to charge the rechargeable energy storage device to a charge termination voltage where the rechargeable energy storage device has capacity to support peak load but comes close to a system shutdown voltage after supporting peak load. The control unit is also adapted to increase the charge termination voltage if a voltage of the rechargeable energy storage device is near a system shutdown voltage after supporting peak load. | 2021-07-29 |
20210234378 | MANAGEMENT DEVICE AND POWER STORAGE SYSTEM - In order to improve safety while suppressing a decrease in efficiency of an equalizing process between a plurality of cells, controller executes an equalizing process between a plurality of cells by controlling a plurality of discharge circuits based on voltages of the plurality of cells measured by voltage measurement unit. Anomaly determination circuit determines whether or not the voltage of each of cells measured by voltage measurement unit is within a normal range. Controller includes, for each first cycle, a first discharge suspension period during which the voltages of the plurality of cells are measured without an influence of the equalizing process during execution of the equalizing process between the plurality of cells and includes, for each second cycle longer than the first cycle, a second discharge suspension period during which a determination result according to anomaly determination circuit is fixed. | 2021-07-29 |
20210234379 | MANAGEMENT DEVICE AND POWER STORAGE SYSTEM - In order to detect a cell voltage with high accuracy during an equalizing process among a plurality of cells, during execution of the equalizing process among the plurality of cells, controller measures a value of a current flowing to a negative electrode of an nth cell through an nth discharge resistor, calculates an (n−1)th voltage drop value due to a wiring resistance value of an (n−1)th wiring and an nth voltage drop value due to a wiring resistance value of an nth wiring based on the measured current value, and the wiring resistance value of the (n−1)th wiring connected to a positive electrode of the nth cell and a wiring resistance value of the nth wiring connected to the negative electrode of the nth cell, the wiring resistance value of the (n−1)th wiring and the wiring resistance value of the nth wiring being measured in advance, and, based on the (n−1)th voltage drop value and the nth voltage drop value, corrects the voltage value of the nth cell, a voltage value of an (n−1)th cell, and a voltage value of an (n+1)th cell measured by voltage measurement circuit. | 2021-07-29 |
20210234380 | BATTERY CONTROL UNIT AND BATTERY SYSTEM - A battery control unit includes a plurality of switching units, a first controller, and a plurality of bidirectional voltage converters including a ground terminal, a first, and a second input-output terminal. Each of a plurality of battery packs connected in parallel to each other includes a plurality of batteries connected in series with each other. The plurality of switching units are disposed corresponding to the plurality of batteries respectively, and are configured to switch between a connected state where a corresponding battery among the plurality of batteries is connected in series with non-corresponding battery among the plurality of batteries and a non-connected state where the corresponding battery is disconnected from series connection with the non-corresponding battery. | 2021-07-29 |
20210234381 | BATTERY PACK - A battery pack, a method of heating a battery cell and an electrical combination. The battery pack may include a housing; a battery cell; a heating element operable to provide heat to the battery cell; a temperature sensing device operable to sense a temperature of an interior of the battery pack; a heating switch operable to control whether power is provided to the heating element; and an electronic processor configured to receive a signal from the temperature sensing device, the signal indicating the temperature of the interior of the battery pack, determine that the temperature of the interior of the battery pack is less than a predetermined temperature threshold, and in response to determining that the temperature of the interior of the battery pack is less than the predetermined temperature threshold, close the heating switch to provide power to the heating element. | 2021-07-29 |
20210234382 | BATTERY SAVING SYSTEM AND ELECTRICALLY POWERED MOBILITY DEVICE COMPRISING THE SAME - A battery saving system ( | 2021-07-29 |
20210234383 | Relay Switch Device for Turning On/Off High Current of Battery Pack - A relay switch device installed on a transmission line of a battery pack to electrically connect or disconnect the battery pack and a load includes a relay assembly including: a contact member configured to apply a current to or release a current from the transmission line and a coil unit configured to function as an electromagnet for opening and closing the contact member; a control unit configured to supply or block a relay power applied to the coil unit; and an operating voltage sensing unit configured to sense an operating voltage applied to the coil unit from the control unit. The operating voltage sensing unit is further configured to transmit an error message to the control unit when the operating voltage is lower than a preset reference operating voltage or out of a preset normal operating voltage range. | 2021-07-29 |
20210234384 | DATA AND POWER SELECTABLE DEVICE CHARGER - A selectable USB charging cable which may have a switch configured to permissively control the transmission of an electrical current between two internet connected, or electronically powered, devices. By use of the reversibly selectable switch, a user of the charging cable may select an on configuration or an off configuration of the switch. The switch may reversibly stop the transmission of the electrical current between two electronically powered devices by use of a permissible selection between the on configuration and off configuration of the switch. The electrical current stopped by the switch may correspond to data transmission or power transmission to or from an electronically powered device. | 2021-07-29 |
20210234385 | DATA AND POWER RETRACTABLE DEVICE CHARGER - A selectable charging cable which may have a switch configured to permissively control the transmission of an electrical current between two internet connected, or electronically powered, devices. The switch may be connected to a connection member. The connection member may traverse into a retraction cavity inside of a casing and be optionally connected to a power prong, a data prong, or both. The power prong and the data prong may each have connector pins divided between them. The connector pins for the data prong may be used exclusively for data and the connector pins for the power prong may be used exclusively for power. The switch, being reversibly configurable between a retracted position and an unretracted position, may result in either the data prong, the power prong, or both prongs being incapable of connecting with an internet connected device. | 2021-07-29 |
20210234386 | BATTERY MANAGEMENT SYSTEM AND METHOD - A battery management system for determining a time series of normalised voltage of at least one battery cell corresponding to a time period during which a first current flows through the at least one battery cell. The battery management system comprises a cell monitoring device configured to measure a current flowing through the at least one battery cell and a voltage of the at least one battery cell at a plurality of different times during the time period; and a controller configured to determine a normalised voltage of the at least one battery cell for each of the plurality of different times, in dependence on the measured current and measured voltage corresponding to that time, wherein the determined normalised voltages at the plurality of different times form a times series of normalised voltage, wherein the normalised voltage at each of the plurality of different times corresponds to an estimate of a voltage of the at least one battery cell if a second constant current were flowing through the battery cell throughout the time period, where the second constant current is different to the first current. | 2021-07-29 |
20210234387 | METHOD AND SYSTEM FOR OPTIMIZING CHARGING AND DISCHARGING BEHAVIORS OF A BATTERY ENERGY STORAGE SYSTEM BASED ON STATE OF HEALTH - Provided are a method and a system for optimizing charging and discharging behaviors of a BESS based on a SOH, relating to charging and discharging optimization. The number of cycles of the battery pack and corresponding DODs are obtained based on the curve of the SOC of the battery pack. Then, the SOH of the battery pack is obtained. A charging index sequence and a discharging index sequence of battery packs are obtained based on the SOH, the SOC and a charging and discharging state of the battery pack. The optimal number of the charging and discharging battery packs and optimal DODs are determined. Charging and discharging tasks are carried out according to the charging and discharging index sequences of the battery packs based on the optimal number of the charging and discharging battery packs and the optimal DODs. | 2021-07-29 |
20210234389 | BIDIRECTIONAL POWER MANAGEMENT TECHNIQUES - Power management techniques are disclosed. For instance, an apparatus may include a bidirectional voltage converter circuit, and a control module that selectively operates the bidirectional voltage converter circuit in a charging mode and a delivery mode. The charging mode converts a voltage provided by an interface (e.g., a USB interface) into a charging voltage employed by an energy storage module (e.g., a rechargeable battery). Conversely, the delivery mode converts a voltage provided by the energy storage module into a voltage employed by the interface. Other embodiments are described and claimed. | 2021-07-29 |
20210234390 | POWER SUPPLY UNIT FOR AEROSOL INHALER - A power supply unit for an aerosol inhaler includes: a power supply able to discharge power to a load for generating an aerosol from an aerosol source; a connector able to be electrically connected to an external power supply; a control device configured to control at least one of charging and discharging of the power supply or configured to be able to convert power which is input from the connector into charging power for the power supply; and a zener diode provided between the connector and the control device so as to be connected in parallel with the control device. A maximum value of zener voltage of the zener diode is lower than a maximum operation guarantee voltage of the control device. | 2021-07-29 |
20210234391 | PARALLEL BATTERY CHARGE MANAGEMENT - The described technology provides a method of balancing power supplied to a system load by a first battery power source and a second battery power source. The method includes sensing a first current supplied by or supplied to the first battery source. The method further includes changing a control voltage for a voltage converter circuit based on the sensed first current, an input of the voltage converter circuit being coupled to the second battery power source, an output of the voltage converter circuit being electrically coupled to the system load. The method still further includes adjusting the voltage converter circuit to modify a charge current supplied from the second battery power source to the first battery power source based on the control voltage. | 2021-07-29 |
20210234392 | BATTERY PACK AND CONTROL METHOD THEREOF - A battery pack that is connectable to an electronic device is disclosed. The battery pack includes positive terminals, negative terminals, and a cutting unit. The cutting unit cuts a current that flows from a battery cell to the electronic device in a case where the current flowing from the battery cell to the electronic device exceeds a maximum current value. The battery pack further includes a control unit that changes the maximum current value based on the number of positive terminals and negative terminals that are connected to the electronic device. | 2021-07-29 |
20210234393 | MULTIMODE USB-C POWER TRANSMISSION AND CONVERSION SUPPORTING IMPROVED BATTERY CHARGING - Systems and methods are provided for charging a battery system of an Information Handling System (IHS) using a multimode AC adapter. Information reported by the multimode adapter is used to determine its capabilities, including whether it supports USB-PD transmission and also supports high-power transmissions of a voltage greater than the USB-PD voltages. The charge state of the battery system is monitored. When the battery is in a pre-charge state, the battery is charged using USB-PD transmissions negotiated with the multimode adapter. When the battery is in a bulk-charge state, the battery is charged using a high-power transmission negotiated with the multimode adapter. When the battery is in a top-off-charge state, the battery is charged using USB-PD transmissions negotiated with the multimode adapter. In light of the charging efficiency of a battery varying based on its charge level, the multimode adapter supports efficient charging at different charge levels. | 2021-07-29 |
20210234394 | LOAD CONTROL DEVICE HAVING A REDUCED LEAKAGE THROUGH GROUND - A load control device for controlling power delivered from an AC power source to an electrical device may be configured to conduct current through earth ground and may disconnect a switching circuit to reduce an amount of current conducted through the earth ground. The load control device may comprise a controllably conductive device configured to control the power delivered from the AC power source to the electrical device so as to generate a switched-hot voltage, a switching circuit electrically coupled with a detect circuit, and a control circuit configured to render the switching circuit conductive and nonconductive. The detect circuit may generate a detect signal indicating a magnitude of the switched-hot voltage. The control circuit may be configured to monitor the detect signal and to render the switching circuit non-conductive after detecting an edge on the detect signal to reduce the total current through the earth ground. | 2021-07-29 |
20210234395 | Power Supply Assembly - A power supply assembly including a load supply converter system and energy saving transfer route both connected electrically to a load connection. The energy saving transfer route bypasses the load supply converter system, and includes a bypass switch system having a first bypass switch and second bypass switch connected in series. A control system of the power supply assembly is adapted to provide a system diagnostic operation including providing a diagnostic state for the bypass switch system by controlling the first bypass switch into a non-conducting state, and controlling the second bypass switch into a conducting in state, generating a diagnostic voltage in an output of the load supply converter system, and detecting a short circuit incident if an electric current flowing through the bypass switch system exceeds a predetermined short circuit threshold value. | 2021-07-29 |
20210234396 | METHOD AND SYSTEM TO CONTROL MULTIPLE SOURCES OF ENERGY USING AN UNINTERRUPTIBLE POWER SUPPLY - A power supply system including an uninterruptible power supply (UPS) comprising an input coupled to an AC source and configured to receive input AC power from the AC source and an output configured to provide AC output power to a load, the UPS including a converter coupled to the input, an inverter coupled to the output, and a DC bus coupled between the converter and the inverter, a renewable power source configured to provide DC power derived from a renewable energy source, a first DC/DC converter coupled between the renewable power source and the DC bus and configured to provide DC power derived from the renewable power source to the DC bus, and a controller in communication with the first DC/DC converter and configured to monitor an output power capability of the renewable power source, and to operate the first DC/DC converter to provide DC power derived from the renewable power source to the DC bus based on the output power capability of the renewable power source. | 2021-07-29 |
20210234397 | LOAD DISTRIBUTION FOR A HYBRID UPS SYSTEM - Embodiments herein provide a UPS system comprising an input, a converter configured to convert input AC power into DC power, a DC bus configured to receive DC power from the converter, an inverter configured to convert DC power from the DC bus into output AC power, a Maximum Power Point Tracking (MPPT) controller configured to receive DC power from a power source and to identify a maximum power point of the power source, a DC-DC converter configured to regulate DC power provided from the MPPT controller to the DC bus, and a controller configured to determine whether the maximum power point of the power source is greater than or equal to at least one threshold level, and in response to determining that the maximum power point is greater than or equal to the at least one threshold level, operate the DC-DC converter to draw DC power from the MPPT controller at the maximum power point of the power source. | 2021-07-29 |
20210234398 | METHODS AND APPARATUS FOR POWER GENERATION AND DISTRIBUTION - Methods and apparatus according to various aspects of the present invention may operate in conjunction with a microgrid capable of connecting to a main electrical grid supplying electrical power at a frequency (or other characteristic, such as voltage). A sensor may provide a signal to a control system, wherein the signal corresponds to the frequency (or other characteristic) of the electrical power from the main electrical grid. The control system may compare the frequency (or other characteristic) of the electrical power from the main electrical grid to a first threshold, and automatically provide power from the microgrid to the main electrical grid if the frequency (or other characteristic) of the electrical power from the main electrical grid crosses the first threshold. | 2021-07-29 |
20210234399 | OBJECT BASED ROBUST AND REDUNDANT DISTRIBUTED POWER SYSTEM CONTROL - Systems and apparatuses include a first controller structured to control a first power system object located on a first route of a power system, and a second controller structured to control a second power system object located on a second route of the power system. The first controller and the second controller are both structured to perform a route level function including coordination of actions of the first power system object and the second power system object, and the first controller is a principal controller and the second controller is a participant controller. | 2021-07-29 |
20210234400 | LINE CONNECTOR FOR TRANSMITTING ELECTRIC SIGNALS - A line connector for transmitting electrical signals includes a housing, a first electric connection configured to transmit a first electrical signal, a second electrical connection configured to transmit a second electrical signal, and a diagnostic device. The diagnostic device is configured to monitor the first electrical signal and detect a first status of the first electric connection, and to monitor the second electrical signal and detect a second status of the second electrical connection. The housing has a housing wall with a first optical indicator and a second optical indicator. The first optical indicator is configured to generate a first optical signal representing the first status, and the second optical indicator is configured to generate a second optical signal representing the second status. | 2021-07-29 |
20210234401 | POWER TRANSMISSION COIL UNIT, POWER RECEIVING COIL UNIT, AND WIRELESS POWER TRANSMISSION SYSTEM - A power transmission coil unit capable of inhibiting a foreign body made of metal remaining placed on a surface of a casing is provided. The power transmission coil unit includes: a power transmission coil; and a first casing housing the power transmission coil, wherein a first surface of the first casing is a surface positioned on a predetermined first direction side among surfaces of the first casing and is inclined with respect to a first base face of the first casing, and wherein the first base face is a face that is parallel to a face having a largest area among faces facing the power transmission coil side of a base part of the first casing, and is a face that is parallel to the first direction. | 2021-07-29 |
20210234402 | HIGH-POWER WIRELESS TRANSMISSION AND CONVERSION - Systems and methods provide wireless power to an Information Handling System (IHS). A multimode wireless power transmission unit supports USB-PD (Universal Serial Bus Power Delivery) power transmissions and also supports a high-power transmission of a voltage greater than USB-PD transmission voltages. The IHS detects the wireless coupling of the wireless power transmission unit. As part of this coupling, the IHS determines whether the wireless power transmission unit supports high-power transmissions. A wireless power transfer is negotiated and a power circuit of the IHS is configured for converting the negotiated high-power transmission to an input utilized by the IHS. Embodiments utilize a power circuit that provides efficient conversion of power transmissions of up to 60 volts. This same power circuit also provides efficient conversion of power transmissions of up to 60 volts by a multimode USB-C power adapter. | 2021-07-29 |
20210234403 | WIRELESS CHARGING PAD FOR ELECTRONIC DEVICES - In one example an electronic device comprises at least one electronic component, a least one power storage device, and a chassis comprising a body formed from a rigid material and comprising a first pad coupled to the body by a first hinge, wherein the first pad is rotatable about the first hinge between a first position in which the first pad is closed and a second position in which the first pad is open, wherein the first pad comprises a first wireless power transmitting device. Other examples may be described. | 2021-07-29 |
20210234404 | DETACHABLE SEAT WIRELESS POWER TRANSFER AND COMMUNICATION SYSTEM - A detachable seat wireless power transfer and communication system includes: a seat assembly including a seat receiver configured to receive power wirelessly and a seat controller to control the seat receiver; a vehicle assembly spaced apart from the seat assembly at a lower end of the seat assembly; a front hook spaced apart from the seat assembly at a lower end of a front portion of the seat assembly in a length direction to fix a first end of the seat assembly to a vehicle body; a rear latch spaced apart from the seat assembly at a lower end of a rear portion of the seat assembly in the length direction to fix a second end of the seat assembly to the vehicle body; and a front hook switch spaced apart from the vehicle assembly. The vehicle assembly includes a vehicle transmitter configured to wirelessly transmit the power to the seat assembly, and a vehicle controller configured to control the vehicle transmitter. | 2021-07-29 |
20210234405 | WIRELESS POWER SUPPLY DEVICE - A wireless power supply device includes an electrically-conductive case that accommodates a power transmitting circuit board and a power receiving LC circuit in a resonant cavity formed therein and surrounded by an electrically-conductive plate with both ends of a power transmitting LC circuit being connected to the electrically-conductive plate. In the resonant cavity, a power transmitting coil and a power receiving coil resonate magnetically so as to supply power of an AC voltage signal to a load. The both ends of the power transmitting LC circuit are electrically connected to the electrically-conductive case using a pair of electrically-conductive attachment units configured to attach the power transmitting circuit board to an inner wall surface of the electrically-conductive case. | 2021-07-29 |
20210234406 | Wireless Charger - The present invention is directed to an electrical wiring assembly that includes a plurality of line terminals configured to be coupled to a source of AC power. A circuit assembly is coupled to the plurality of line terminals. The circuit assembly includes a control circuit coupled to at least one electro-magnetic coil, the control circuit being configured to provide an electrical drive signal to the at least one electro-magnetic coil in accordance with a predetermined wireless charging regimen. The at least one electro-magnetic coil is configured to propagate a magnetic field in accordance with the electrical drive signal. A wall plate assembly is configured to accommodate the circuit assembly therewithin, the wall plate assembly including a charging interface region configured to accommodate a portable electronic device. The charging interface region is configured to position the at least one electro-magnetic coil proximate the portable electronic device so that the portable electronic device is disposed within the propagated magnetic field in accordance with the predetermined wireless charging regimen. | 2021-07-29 |
20210234407 | WIRELESS CHARGING DEVICE AND ELECTRONIC DEVICE - A wireless charging device and an electronic device are disclosed. The wireless charging device includes: a photoelectric conversion device and a primary light guide plate; the primary light guide plate having a first light incident surface and a first light exiting surface; and the photoelectric conversion device faces the first fight exiting surface. | 2021-07-29 |
20210234408 | ADAPTIVE ROAMING AND ARTICULATING GENERATING UNIT FOR WIRELESS POWER TRANSFER - A roaming and articulating wireless power delivery device includes, in part, an optical assembly adapted to deliver an optical beam, an energy storage unit, a controller, and an electrically driven moving platform. The moving platform may include an inertia measurement, a GPS, bump sensors and proximity sensors. The device may further include a camera, a gradient filter, and a wireless communication link via which the device establishes a two-way communication with a recovery unit being wirelessly powered. | 2021-07-29 |
20210234409 | WIRELESS OPTICAL CHARGING SYSTEM AND CHARGING METHOD THEREOF - A wireless optical charging system according to the present invention includes a transmitter which transmits a laser beam as light with an energy increased by the resonance; and a receiving unit which receives light transmitted from the transmitter and converts an energy for some light among the received light into an electric energy to charge devices. Accordingly, the laser resonance power transfer technology is used to solve the limitation of the distance and harmfulness to the human body. | 2021-07-29 |
20210234410 | RECEIVER FOR WIRELESS CHARGING SYSTEM - A receiver for a wireless charging system, capable of receiving power energy using non-contact type magnetic induction, includes a coil capable of receiving the power energy and a part for generating a predetermined output power from the power energy received by the coil, a portable terminal, an NFC coil further provided outside of the coil, and a ferrite sheet further provided at the coil and the NFC coil. | 2021-07-29 |
20210234411 | METHODS AND APPARATUS FOR ONLINE FOREIGN OBJECT DETECTION IN WIRELESS CHARGING SYSTEMS - Methods and apparatus for online foreign object detection for use with wireless charging systems. In an embodiment, an apparatus is provided that comprises a resonant circuit having a foreign object detection (FOD) coil that is energized by an online power transfer coil. The resonant circuit outputs a time-decaying resonate signal that indicates whether or not a foreign object is present. The apparatus also comprises a determination circuit that determines a decay time from the time-decaying resonate signal, and a detector circuit that outputs a detection signal having a first state when the decay time is greater than a threshold value to indicate that a foreign object is not present. The detector circuit also outputs the detection signal having a second state when the decay time is not greater than the threshold value to indicate that a foreign object is present. | 2021-07-29 |
20210234412 | WIRELESS POWER SYSTEM - A wireless power system includes a primary device and a secondary device. The primary device includes a power conversion unit, a function module, and a transceiver. The peripheral device includes a wireless power receiver circuit, a peripheral transceiver, and a peripheral unit. The power conversion unit converts a power source into an electromagnetic signal. The functional module executes a function regarding peripheral information. The transceiver communicates information regarding the electromagnetic signal and the peripheral information. The wireless power receiver circuit converts the electromagnetic signal into a voltage. The peripheral transceiver communicates the information regarding the electromagnetic signal and the peripheral information. The peripheral unit processes the peripheral information. | 2021-07-29 |
20210234413 | STATOR AND MOTOR COMPRISING SAME - An embodiment relates to a stator and a motor comprising same, the stator comprising: a stator core comprising a yoke and multiple teeth protruding from the inner surface of the yoke; an insulator surrounding a part of the stator core; a coil wound around the insulator; and a molding portion disposed to cover the stator core, the insulator, and the coil. The insulator comprises a first insulator and a second insulator. The first insulator comprises: a body portion around which the coil is wound; and inner guide extending from the inside of the body portion in the perpendicular direction; a first outer guide extending from the outside of the body portion in the perpendicular direction; a second outer guide disposed to be spaced apart from the first outer guide in the outward direction; and a protrusion protruding from the second outer guide in the inward direction. The protrusion has an end portion disposed such that a predetermined gap (G) is formed between same and the first outer guide. The coil has a part disposed between the first outer guide and the second outer guide through the gap (G). Accordingly, it is possible to prevent inhibit the coil from contacting the housing due to injection molding pressure during over-molding of the stator. | 2021-07-29 |
20210234414 | STATOR CORE AND MOTOR USING THE SAME - The present invention relates to a stator core for improving the fixing properties of a magnet wire, and a motor in which the same is applied. Provided is a stator core which comprises a protrusion pattern part for fixing the distal end portion of a magnet wire, and thus eliminates a process of fixing the wire using a separate member during a wiring process, thereby improving processability and inhibiting an insulating film of the magnet wire from being damaged by an external force such as vibration. | 2021-07-29 |
20210234415 | ROTATING ELECTRIC MACHINE - A rotating electric machine includes a rotor and a stator. The rotor includes a magnet section constituted of permanent magnets. The stator is arranged coaxially with the rotor and includes a stator coil and a stator coil holder. The stator coil is formed of electrical conductors arranged in a circumferential direction of the stator. The stator coil holder is configured to hold the stator coil. In the stator, there are provided inter-conductor members between the electrical conductors in the circumferential direction or no inter-conductor members are provided between the electrical conductors in the circumferential direction. Moreover, the inter-conductor members are formed of a magnetic material satisfying a predetermined relationship or formed of a nonmagnetic material. The stator coil has a coil end part protruding from an axial end of the stator coil holder. A soft-magnetic member is provided on at least part of a surface of the coil end part. | 2021-07-29 |
20210234416 | STATOR COOLING STRUCTURE - A stator cooling structure in which the stator cooling structure includes a supporting member that has a cylindrical shape along an axial direction of a rotating electric machine, that supports a stator core of the rotating electric machine, and that forms a cooling water passage and oil passage, and the stator core, the cooling water passage, and the oil passage are disposed adjacent to each other in this order from an inner radial side. | 2021-07-29 |
20210234417 | ROTOR FOR A ROTATING ELECTRICAL MACHINE - A rotor for an electrical machine, rotating about an axis of rotation, the rotor including: salient poles forming slots between them, the salient poles each being of an overall shape that is asymmetrical with respect to a radial midplane containing the axis of rotation of the machine, coils, each coil being placed on a corresponding salient pole, in the slots adjacent to this salient pole. | 2021-07-29 |
20210234418 | TWO DEGREE-OF-FREEDOM HIGH TILT TORQUE MOTOR, SYSTEM, AND AERIAL VEHICLE INCORPORATING THE SAME - A two degree-of-freedom motor includes an inner stator, a plurality of inner stator windings, an inner rotor, an outer stator, a plurality of outer stator windings, an outer rotor, and a shaft. The inner rotor is spaced apart from, and at least partially surrounds, the inner stator, and includes a plurality of magnets. The outer stator is spaced apart from, and at least partially surrounds, the inner stator and the inner rotor. The outer rotor is spaced apart from, and is disposed between, the inner rotor and the outer stator, and has a plurality of outer rotor projections. The shaft is coupled to the inner rotor and the outer rotor. | 2021-07-29 |
20210234419 | IPM ROTOR - In an IPM rotor, a first core sheet has a first sheet hole forming a part of an accommodation hole. The first sheet hole has an edge portion having a flat spring portion which is bent by a magnet through insertion of the magnet into the accommodation hole. A pair of recesses forming a clearance with respect to the magnet are formed at both side portions of the flat spring portion of the edge portion of the first sheet hole. A size of the clearance is set based on a relationship between a magnitude of a pressing force of the flat spring portion on the magnet and variation in pressing force. | 2021-07-29 |
20210234420 | ROTOR, MOTOR, FAN, AND AIR CONDITIONER - A rotor includes a rotor core. A permanent magnet constitutes a first magnetic pole, and a part of the rotor core constitutes a second magnetic pole. In the second magnetic pole, a plurality of slits is symmetrically formed with respect to a magnetic pole center line connecting a pole center of the second magnetic pole and the center axis. On one side of the magnetic pole center line in a circumferential direction about the center axis, the plurality of slits has a first slit closest to the magnetic pole center line and a second slit adjacent to the first slit in the circumferential direction. A minimum distance L | 2021-07-29 |
20210234421 | ROTOR UNIT, ELECTRIC MOTOR, AND ELECTRIC ACTUATOR - A rotor unit | 2021-07-29 |
20210234422 | COOLING SYSTEM FOR VEHICLE ROTARY ELECTRIC MACHINE - An external line that is supplied with oil cooled by a water oil cooler is connected to a first cooling pipe and a second cooling pipe, so oil cooled by the water O/C is supplied to the first cooling pipe and the second cooling pipe. As a result, it is possible to effectively cool a rotary electric machine by using oil that is supplied from the first cooling pipe and the second cooling pipe to the rotary electric machine. The external line that is supplied with oil cooled by the water O/C is connected to the second cooling pipe via a connection fluid passage defined within a case, so the case is cooled by oil. Thus, the influence of outside air temperature on the rotary electric machine is reduced. | 2021-07-29 |
20210234423 | THERMAL MANAGEMENT ASSEMBLY FOR AN ELECTRIFIED VEHICLE - An electric machine for an electrified vehicle includes a stator core configured to receive a plurality of windings and an overmolded midsection formed about the stator core. The midsection also defines a first interlocking feature disposed near an end face of the stator core. The electric machine also includes an end cap defining at least a portion of a coolant channel and a second interlocking feature configured to engage the first interlocking feature and create a fluid seal to retain fluid within the coolant channel. The coolant channel is further arranged to encase end portions of the plurality of windings and direct circulating coolant across the end portions. | 2021-07-29 |
20210234424 | APPARATUS AND METHODS FOR MANUFACTURING HIGH-DENSITY COIL WITH FORMED COOLING CHANNELS - A conductive coil for an electric application having a cooling channel for a coolant liquid or gas. The coil includes a wire winding of a plurality of wire turns. The wire winding is compressed about a cooling channel which is disposed between adjacent turn segments of the plurality of wire turns. The wire winding is formed and pressed against a shaping element to form the coolant channel within the compressed winding. | 2021-07-29 |
20210234425 | ELASTIC-LOCKING WINDING CARRIER FOR PREFORMED COIL ASSEMBLIES OF AN ELECTRIC MOTOR - An elastic-locking winding carrier for a preformed coil assembly of a stator of an electric motor, includes a winding portion adapted to receive a winding having a wound electrical conductor to produce a coil. The winding portion includes upper and lower portions, first and second openings arranged on the winding portion, and first and second flexible members located inside respective first and second openings and extending thereacross. The first and second flexible members are arranged such that either of the first and second flexible members cooperates with a tooth of the stator as a function of the magnitude of the gap between the tooth and the lower portion of the winding portion when the preformed coil assembly is mounted on the tooth to fix the preformed coil assembly to the tooth. | 2021-07-29 |
20210234426 | BEARING CAP AND ELECTRIC MOTOR UTILIZING THE SAME - The invention relates to a bearing cap ( | 2021-07-29 |
20210234427 | AXLE ASSEMBLY HAVING AN ELECTRIC MOTOR MODULE AND A TERMINAL BOX - An axle assembly having an electric motor module and a terminal box that may facilitate mounting of at least one phase cable. The phase cable may be secured to a terminal box cover with a terminal box clamp. The phase cable may extend through a phase block that may be mounted to the terminal box. | 2021-07-29 |
20210234428 | ELECTRIC MOTOR POWER CORD FOR PORTABLE ELECTRICAL ASSEMBLY - A portable electrical assembly includes an electric motor, a power module, and an electric motor power cord. The electric motor power cord is placed within a cavity of a housing of the portable electrical assembly and is operatively connected to the electric motor at first end and to the power module at a second end. The electric motor power cord is configured to move in response to the movement of the electric motor without the creation of sharp bends along its length as the electric motor moves between all of its possible operating positions including an extended position and a resting position and a plurality of intermediate position between the extended and resting position. | 2021-07-29 |
20210234429 | SPINDLE DRIVE - A spindle drive for a motorized adjustment of an adjustment element of a motor vehicle includes a tubular or half-shell-like spindle drive housing. An annular or disk-like connection portion is inserted and secured in one end region of the spindle drive housing. The annular or disk-like connection portion is connected via a damping element comprising a resilient damping material to a connection for discharging axial drive movements. The connection portion has a coaxial recess with an inner radially peripheral wall having a radially peripheral groove. The connection with the end region thereof facing the spindle drive housing protrudes axially into the recess of the connection portion and has a radially peripheral flange which protrudes radially into the groove. The damping element is arranged in a gap disposed between the side walls of the groove and the side walls of the flange. | 2021-07-29 |
20210234430 | ELECTRIC WORKING MACHINE AND METHOD FOR ASSEMBLING THE SAME - An electric working machine and method for assembling the same that do not require specific jigs, so as to facilitate assembling work and reduce man-hours and production cost. A motor assembly is relatively inserted into a body casing, with a mounting base disposed behind a partitioning wall portion allowing a tubular fixture to project through an insertion hole toward the front of the partitioning wall portion, and a temporarily securing mechanism temporarily secures the motor assembly to retain the position of the motor assembly by automatically moving it in rotating and two orthogonal directions on a plane along the partitioning wall portion, so as to coaxially arrange the tubular fixture and insertion hole, and through-hole and screw hole of the mounting base for screwing the bolt. In such a temporarily secured state, the motor assembly is finally secured by screwing the bolt through the through-hole into the screw hole of the mounting base. | 2021-07-29 |
20210234431 | ELECTRIC WORKING MACHINE - An electric working machine capable of efficiently cooling components disposed inside, as well as simplifying assembling work and reducing man-hours and production cost. A motor, control board for controlling the motor, rod fixture secured to the front side of the motor, and air guiding partitioning member secured to the rear side of the motor form a motor assembly. The air guiding partitioning member includes a partitioning plate hermetically partitioning between air exhaust and intake ports provided with a predetermined interval longitudinally in the body casing. The partitioning plate has an air guiding window for delivering cooling air taken in from the air intake port to an opening for sucking air on the front side of the motor through a space between the motor and body casing. The control board is disposed on the rear side of the partitioning plate. | 2021-07-29 |
20210234432 | BRUSHLESS DC MOTOR CONFIGURATION FOR A POWER TOOL - A power tool with a combined printed circuit board (PCB) having a doughnut shape and located coaxially with a motor shaft. The combined PCB is secured to a heat sink on one end of the motor and a metal end piece is positioned on an opposite end of the motor. The metal end cap and heat sink are secured to one another via fasteners to provide a rigid coupling. A tabbed end piece is provided between the heat sink and the motor stator and is also secured into place via the fasteners. The tabbed end piece includes wire support tabs that provide strain relief to motor coil leads. The wire support tabs extend axially from circumferential locations of the tabbed end piece and include channels to guide the motor coil leads to solder contact points on the combined PCB. | 2021-07-29 |
20210234433 | SYSTEM FOR COOLING AN ELECTRIC MOTOR - This disclosure pertains to a system for cooling an electric motor including a rotor which is connected to an output shaft, a stator disposed about the rotor, a casing in which the stator and rotor are disposed, and a cooling assembly. The cooling assembly includes an inlet configured to deliver coolant into the casing and directly onto the stator to cool the stator and an outlet configured to remove the coolant from the casing. The stator is a major source of heat within the electric motor and applying coolant directly to onto the stator is an effective method of cooling the motor. | 2021-07-29 |
20210234434 | MOTOR HOUSING ASSEMBLY - A motor housing assembly for cooling a motor assembly is disclosed. The motor housing assembly includes a stator and a rotor. To reduce a weight and a manufacturing cost, the motor housing assembly includes an aluminum housing coupled to an outer circumferential surface of a motor assembly and configured to form a first space between the aluminum housing and the motor assembly, the first space including an oil flow channel and a plastic housing coupled to an outer circumferential surface of the aluminum housing and configured to form a second space between the plastic housing and the aluminum housing, the second space including a water flow channel. | 2021-07-29 |
20210234435 | COOLING APPARATUS FOR ELECTRIC MOTOR - The cooling apparatus uses oil to cool an electric motor whose output is transmitted to a drive shaft inserted into a motor shaft via a reduction gear and a differential gear. An oil seal seals the gap between the differential case of the differential gear and the outer peripheral surface of the drive shaft. An oil passage is formed inside the drive shaft. An oil introduction hole is formed in the drive shaft on the side of the differential gear with respect to the oil seal to introduce oil from the differential gear into the in-drive-shaft oil passage. An oil outlet hole is formed in the drive shaft on the side of the electric motor with respect to the oil seal to draw oil from the in-drive-shaft oil passage to the inside of the motor shaft. | 2021-07-29 |
20210234436 | Cooling Assembly for an Electric Machine - A cooling assembly for an electric machine is disclosed. The cooling assembly may include a generally cylindrical cooling jacket for receiving a shaft, a rotor and a stator. Further, the cooling jacket jacket may be disposed in an electric machine housing. Additionally, the cooling assembly may include at least two first passages in the cooling jacket for circulating a first coolant and at least one second passage in the cooling jacket for circulating a second coolant, the second passage being disposed between the at least two first passages. Further, the cooling assembly may include a third passage on an exterior of the machine housing, the third passage extending through the housing to fluidly connect the at least two first passages and bypass the second passage. | 2021-07-29 |
20210234437 | Robot Drive with Isolated Optical Encoder - An apparatus including a frame, an optical sensor connected to the frame, and an environment separation barrier. The frame is configured to be attached to a housing of a motor assembly proximate an aperture which extends through the housing. The optical sensor comprises a camera. The environment separation barrier is configured to be connected to the housing at the aperture, where the environment separation barrier is at least partially transparent and located relative to the camera to allow the camera to view an image inside the housing through the environment separation barrier and the aperture. | 2021-07-29 |
20210234438 | POWER TOOL - The purpose of the invention is to achieve a miniaturized power tool. Provided is a hammer drill ( | 2021-07-29 |
20210234439 | METHOD FOR MANUFACTURING ARMATURE, AND DEVICE FOR MANUFACTURING ARMATURE - The method for manufacturing an armature includes a step of independently pressing pressing-target segment conductors by a plurality of pressing jigs disposed for each of the pressing-target segment conductors, such that the plurality of pressing jigs are movable relative to each other, at least either one of first segment conductors and second segment conductors serving as the pressing-target segment conductors. | 2021-07-29 |
20210234440 | Setting Device for Rotor Core Retaining Jig - To automate setting of coupling rods when using a rotor core retaining jig and thereby to improve the production efficiency of a magnet embedded core, a setting device includes: a support base ( | 2021-07-29 |
20210234441 | Manufacturing Device for Magnet Embedded Core - To improve the abrasion resistance and releasability of the inner peripheral surfaces of a resin pot chamber, a gate, and the like in a manufacturing device for a magnet embedded core without using cemented carbide, the inner peripheral surface of the resin pot chamber ( | 2021-07-29 |
20210234442 | ELECTRIC MACHINE FOR A HYBRID OR ELECTRIC VEHICLE - An electric machine that is configured to propel a vehicle includes a stator and a rotor. The stator has windings that are configured to generate magnetic fields. The rotor has a plurality of magnetic blocks that interacts with the magnetic fields to produce rotational motion. Each of the plurality of magnetic blocks is segmented into a plurality of permanent magnets. Adjacent permanent magnets within each magnetic block are separated from and secured to each other via an intermediate electrically insulating material. The intermediate electrically insulating material is comprised of magnetic particles that are suspended in an adhesive matrix. | 2021-07-29 |
20210234443 | METHOD FOR PRODUCING COMPRESSED STRAND, METHOD FOR PRODUCING AN ELECTRIC MOTOR, AND USE OF COMPRESSED STRAND - The invention relates to a method for producing a compressed strand (F) made of an insulated wire ( | 2021-07-29 |
20210234444 | STATOR FOR A ROTATING ELECTRICAL MACHINE - The invention relates to a stator ( | 2021-07-29 |
20210234445 | ELECTRIC MACHINE AND HYBRID ELECTRIC AIRCRAFT - The electric machine includes a rotor and a stator, wherein the stator has stator coils, each with a coil core. The electric machine additionally includes an error-recovery device configured to change a magnetic flux coupling of coil cores with one another by a flux conducting element. The hybrid electric aircraft is a hybrid electric airplane, in particular, and the hybrid electric aircraft has such an electric machine. | 2021-07-29 |
20210234446 | ELECTRIC MACHINE - It is described an electric machine with permanent magnets, which can function as a high torque and power per mass motor or generator. The machine includes a rotor and a stator. The rotor and the stator have spiral shape, the stator is located inside the rotor. The rotor contains at least two permanent magnets of different polarity, forming spirals around the stator. The stator contains a ferromagnetic core, on which the three-phase winding is spirally wound. This construction allows almost the entire winding to participate in torque generation. The cooling with a fluid medium inside the magnet core allows to remove heating from the entire length of the winding, which significantly increases the operating efficiency. | 2021-07-29 |
20210234447 | ELECTRIC MACHINE WITH INDUCTIVE POSITION SENSOR ASSEMBLY AND METHOD FOR ASSEMBLING AND ALIGNING THE SAME - An electric machine includes a machine rotor circumscribed by a machine stator, and having a rotor shaft, rotor stack, and end cap which rotate about an axis. The end cap includes lobes equal in number to a number of pole pairs of the machine rotor. A position sensor assembly has a predetermined alignment with the machine rotor and stator. The sensor assembly includes a sensor rotor formed by the lobes and a sensor stator having a printed circuit board with conductive sine and cosine traces. Machine rotor rotation causes the sensor assembly to output an unmodulated sine and cosine signals to a controller, which then calculates a calibrated reference angle. A magnetic axis of an electrical phase of the machine is aligned with and bisects a peak of the sine trace. A direct axis of the machine rotor aligns with an edge of a lobe. | 2021-07-29 |
20210234448 | TWO DEGREE-OF-FREEDOM HIGH TILT TORQUE MOTOR, SYSTEM, AND AERIAL VEHICLE INCORPORATING THE SAME - A two degree-of-freedom motor includes a stator, a plurality of stator windings, a rotor, a shaft, a limited angle torque motor, and a spring. The stator has a main body and a plurality of stator poles. The stator windings are wound around the stator poles. The rotor is spaced apart from the stator and includes a plurality of magnets and is configured to rotate about a first rotational axis. The shaft is coupled to the rotor and is rotatable therewith and and has a shaft first end and a shaft second end. The limited angle torque motor is coupled to the shaft first end, and is operable to supply a torque that causes the shaft, the rotor, and the stator to rotate about a second rotational axis that is perpendicular to the first rotational axis. The spring is fixedly mounted and is coupled to the limited angle torque motor. | 2021-07-29 |
20210234449 | ELECTRIC MACHINE SYSTEMS - An electric machine system disclosed herein comprises first and second electric machines configured to drive a load. The first electric machine has a plurality of first rotors. The second electric machine has a plurality of second rotors. At least one of the second rotors is indexed relative to a respective one of the first rotors to, in use, provide a torque phase offset between the first and second electric machines. A shaft is coupled to the load and connects the respective one of the first rotors with the at least one of the second rotors. The respective one of the first rotors is coaxial with and axially spaced apart from the at least one of the second rotors. | 2021-07-29 |
20210234450 | CONTINUOUS WINDING FOR ELECTRIC MOTORS - A continuous winding for a motor that includes a winding block comprising a plurality of coils aligned together to form at least part of a motor winding, where each of the plurality of coils includes a left portion and a right portion that are offset from each other in spaced parallel planes, so that the plurality of coils aligned together are nested together, so that a portion of each of the plurality of coils aligned together supports a portion of an adjacent coil at least laterally and vertically, and a resin coating at least partially covers the winding block to positionally fix the aligned plurality of coils together. | 2021-07-29 |
20210234451 | MULTI-DEGREE-OF-FREEDOM ELECTROMAGNETIC MACHINE WITH PAYLOAD ATTACHMENT ASSEMBLY - A multi-degree-of-freedom electromagnetic machine includes a spherical stator, an armature, a payload mount assembly, and a payload. The spherical stator has a first axis of symmetry, a second axis of symmetry, and a third axis of symmetry that are disposed perpendicular to each other. The armature is spaced apart from, and surrounds at least a portion of, the spherical stator, and is mounted for rotation about the first and second axes of symmetry. The payload is spaced apart from the spherical stator and the armature and is coupled to the payload mount assembly and is mounted to rotate about a payload rotational axis that is parallel to the first axis of symmetry and perpendicular to the second axis of symmetry. The payload is disposed such that its center of gravity is at a position where the second axis of symmetry and the payload rotational axis intersect. | 2021-07-29 |
20210234452 | MULTI-DEGREE-OF-FREEDOM ELECTROMAGNETIC MACHINE - A multi degree-of-freedom electromagnetic machine includes an outer case, an inner case, a stator, stator windings, a voice coil winding, a tilt magnet, a rotor, and rotor magnets. The inner case is disposed within an inner cavity of the outer case and is mounted to rotate relative to the outer case about one or more rotational axes. The stator is fixedly mounted within the inner case, and the stator windings are wound thereon. The voice coil winding is fixedly coupled to either the inner surface of the outer case or the outer surface of the inner case. The tilt magnet is fixedly coupled to either the outer surface of the inner case or the inner surface of the outer case. The rotor is rotationally mounted within the inner case and is operable to rotate, relative to the stator, about a rotational axis. | 2021-07-29 |
20210234453 | POWER CONVERSION APPARATUS - A power supply circuit is configured to convert a voltage of a second electricity storage element into a power supply voltage for a driving circuit, and a voltage detector is configured to detect the voltage of the second electricity storage element. A unit converter includes a first resistor connected to the second electricity storage element electrically in series between the terminals of a first electricity storage element, and a second resistor and a first switch connected electrically in series between the terminals of the second electricity storage element. The power supply circuit is configured to generate a control signal for controlling the first switch on and off based on the detection value from the voltage detector. The power supply circuit is further configured to sense an overloaded state of the second resistor based on the control signal. | 2021-07-29 |
20210234454 | DRIVE CIRCUIT AND POWER CONVERSION DEVICE - A current path to a gate is cut off by a normally-off first switch element until start-up of a gate drive voltage generator is sensed. Furthermore, a semiconductor switching element is maintained in an off state as a normally-on second switch element short-circuits the gate to a source. As start-up of the gate drive voltage generator is sensed, the second switch element is turned off and the first switch element is turned on. As the gate is thus driven by an output from a signal amplifier in accordance with a control signal, the semiconductor switching element is turned on and off in accordance with the control signal. | 2021-07-29 |
20210234455 | SWITCHING CONTROL CIRCUIT AND SWITCHING CONTROL METHOD - A switching control circuit for controlling a power supply circuit that includes an inductor to which an input voltage is applied and through which an inductor current flows, and a transistor configured to control the inductor current. The switching control circuit includes first and second error voltage output circuits that output first and second error voltages, based respectively on a feedback voltage corresponding to the output voltage and a reference voltage, and on an error signal corresponding to a difference between the level of the output voltage and a second level, when the power supply circuit is of a non-isolated type and an isolated type, respectively. The switching control circuit further includes a drive circuit that switches the transistor based on the inductor current, and on the first and second error voltage when the power supply circuit is of the non-isolated type and an isolated type, respectively. | 2021-07-29 |
20210234456 | MULTI-SWITCH VOLTAGE REGULATOR - In some examples, a voltage regulator includes a first pair of switches controllable by a first clock signal having a first phase. The switches in the first pair are coupled to each other via a capacitor. The voltage regulator also includes a second pair of switches controllable by a second clock signal having a second phase. The first and second phases are non-overlapping. The switches in the second pair are coupled to each other via the capacitor. | 2021-07-29 |
20210234457 | CURRENT LIMITING FOR A BOOST CONVERTER - Certain aspects of the present disclosure provide a power supply circuit. The power supply circuit generally includes: a switched-mode power supply (SMPS) having an inductive element and a first switch coupled to the inductive element; a feedback path coupled between an output of the SMPS and a control input of the first switch; and a current limit circuit comprising a first capacitive element, a charge circuit coupled to the first capacitive element, a first current source, a first resistive element coupled to the first current source, the capacitive element being coupled to a node between the resistive element and the first current source, a sample-and-hold circuit coupled to the first capacitive element, and a clamp circuit coupled between the sample-and-hold circuit and the feedback path. | 2021-07-29 |
20210234458 | BOOST POWER FACTOR CORRECTION CONVERSION - In an example, a system comprises a boost power factor correction (PFC) converter including a thermistor, an inductor, and a transistor coupled to a common node. The system also comprises a PFC controller coupled to the common node. The PFC controller includes a comparator coupled to a threshold voltage source and to a non-control terminal of the transistor; a first flip-flop coupled to the comparator and to a control terminal of the transistor; a zero current detector coupled to the inductor; a timer coupled to the comparator and to the zero current detector; a second flip-flop coupled to the timer and to the control terminal of the transistor; an AND gate coupled to the first and second flip-flops; a third flip-flop coupled to the second flip-flop and to the control terminal of the transistor; and a fourth flip-flop coupled to the AND gate and to the control terminal of the transistor. | 2021-07-29 |