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WO/2024/054320A1 |
A pulsed control of an Externally Excited Synchronous Machines (EESM), including a boost circuit and method for (1) harvesting the field energy stored in rotor winding when the EESM is transitioning to the off state following an on pulse...
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WO/2024/051227A1 |
Disclosed in the embodiments of the present application is a control method. The method is used for controlling a BLDCM. A driving circuit of the BLDCM comprises a DC-DC converter and a three-phase inverter. The method comprises: acquiri...
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WO/2024/044109A1 |
A boost circuit and method is described for supplying a boost voltage to a rotor of the electric machine, just as the electric machine is pulsed on, the boost voltage aids the rotor in quickly overcoming its start-up inductance, rapidly ...
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WO/2024/044660A1 |
A power tool that includes a housing, a brushless motor, a power switching circuit, an impact mechanism, and an electronic controller. The brushless motor is within the housing and includes a rotor and a stator. The rotor is coupled to a...
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WO/2024/041438A1 |
The present application provides a motor power supply method and an electronic device. The method is applied to an electronic device, the electronic device comprises a camera, and the camera comprises a motor. The method comprises: detec...
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WO/2024/039834A1 |
An electric machine comprising a power supply and an electrically excited synchronous machine is provided. The electrically excited synchronous machine comprises a stator with stator windings and a rotor with a plurality of rotor poles, ...
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WO/2024/039837A1 |
An electric machine, comprising a power supply and an electrically excited synchronous machine is provided. The electrically excited synchronous machine comprises a stator with stator windings, a rotor, comprising rotor poles with field ...
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WO/2024/026915A1 |
A multi-stage speed adjustment device for sofa push rods, comprising a power adapter (1); push rods (5, 6) and push rod motors, the push rod motors driving the push rods (5, 6); and a hand controller (3) provided with a button switch (9)...
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WO/2024/016612A1 |
The present invention relates to the technical field of motor control, and in particular to a direct-current motor control method. The method comprises the following steps: S1, setting a rotational speed required by a motor to be X; S2, ...
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WO/2024/019348A1 |
An air-handling system for a vehicle includes a housing defining a first flow path through which a first flow of air is configured to selectively flow and a second flow path through which a second flow of air is configured to selectively...
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WO/2024/017438A2 |
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WO/2024/004274A1 |
Provided are a ripple-detecting device and a seat device with which a linear relational formula for deriving, on the basis of ripple current and voltage across motor terminals, the frequency of the ripple current is utilized to enable op...
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WO/2023/238672A1 |
An actuator 120 includes a movable element 124 including a magnet 122, and a plurality of voice coils L1-L3 arranged along the movement direction of the movable element 124. A controller 230 generates a control signal ctrl. A drive unit ...
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WO/2023/229439A1 |
An electronic device according to one embodiment may comprise a housing, a lens assembly disposed along an optical axis, and an AF actuator. The AF actuator can include: a first AF magnet disposed on a first side, oriented in a first dir...
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WO/2023/223071A1 |
A motor control method for domestic appliances for reducing noise during use of the domestic appliances including laundry machines and kitchen machines. The method obtains a cancellation signal configured to reduce the noise of the domes...
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WO/2023/205513A1 |
Embodiments of the disclosure provide an electric drive motor system that includes a stationary-side and a rotating-side. The stationary-side includes an only-stationary-side (OSS) compensation network. A first OSS compensation element o...
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WO/2023/202810A1 |
The invention relates to a method for absorbing energy in an electric drive system (1), in particular a drive system for operating an entry system or door system of a vehicle, the system comprising: an electric drive motor (M) for drivin...
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WO/2023/205514A1 |
Embodiments of the disclosure provide an electric drive motor system that includes a stationary-side, a rotating-side, and a stationary-side sensor system operable to detect current on the stationary-side and send current-based sensor re...
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WO/2023/183171A1 |
An electric machine is provided. A power converter is coupled between a power supply and a wound field synchronous machine. The power converter is arranged to provide a pulsed operation by providing a pulsed DC current to field windings ...
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WO/2023/179066A1 |
Disclosed in the present invention are a circuit protection method based on a direct-current bus capacitor, and a control system for an in-vehicle controller. A diode is connected between a power filter and a positive electrode or negati...
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WO/2023/170620A1 |
The present invention relates to a small electrical appliance (1, 1'), wherein the small electrical appliance (1) is a hair removal device (1), such as an electric shaver or epilator, or an electric toothbrush (1'). A small electrical ap...
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WO/2023/164883A1 |
A yoke-winding-based multi-pole and multi-speed direct-current stator, which is composed of a stator iron core and armature windings, and may constitute an electric motor with a rotor, an electrode, a bearing component, a shell, a contro...
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WO/2023/164886A1 |
A multi-phase alternating-current yoke winding stator, which is composed of a stator core and armature windings, and can form an electric motor together with a rotor, an electrode, a supporting component, a casing, etc. In the armature w...
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WO/2023/159825A1 |
The present invention provides a tubular motor having a stroke accuracy self-learning function and a stroke learning method therefor, solving the problems in an existing tubular motor such as poor positioning accuracy and unchangeable ru...
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WO/2023/150354A1 |
An electric machine controller is described that is arranged to direct a power converter to cause pulsed operation of the electric machine in selected operational ranges to deliver a desired output. The pulsed operation of the electric m...
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WO/2023/142538A1 |
Disclosed in the present invention are an inverter apparatus and the application thereof. The inverter apparatus comprises an n-phase bridge inverter circuit (wherein n = 2k + 1, and k is an integer greater than or equal to 2) and n iron...
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WO/2023/141401A1 |
Systems and methods for monitoring and suppressing a back EMF generated by an ESP motor when the ESP system is moved in a well. Embodiments provide both electrical braking to reduce the rotation of the motor (and corresponding back EMF) ...
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WO/2023/139427A1 |
A multi-turn actuator (4) for a valve is provided with an alternating current brushless electric motor, a transducer device, a power unit with an inverter and a control unit which allows the actuator to deliver, when the operation is sta...
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WO/2023/137412A1 |
A power tool that includes a housing, a brushless motor, a power switching circuit, and an electronic controller. The brushless motor is within the housing. The brushless motor includes a rotor and a stator. The rotor is coupled to a mot...
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WO/2023/136454A1 |
A wireless power transmission device is disclosed. A wireless power transmission device according to various embodiments may comprise: a transmission coil including a first member, which has one end and the other end forming a first angl...
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WO/2023/132652A1 |
A motor control device, according to an embodiment of the present invention, comprises: a switching unit including a first switch unit and a second switch unit; a first resistor connected to an output unit of the switching unit; and a co...
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WO/2023/109274A1 |
An actuator vibration control method and apparatus, and a computer device and a storage medium. The method comprises: acquiring an audio signal and feature data of an actuator, wherein the audio signal is an audio signal for driving the ...
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WO/2023/093597A1 |
A washing machine control method, and a washing machine. The control method comprises: a control device of the washing machine acquires model information of a motor and/or motor model information recorded in a storage module; determines ...
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WO/2023/090187A1 |
A motor drive device (10) comprises a series circuit of a Zener diode (104) and a detection resistor (105) connected between a gate terminal of a first high-side transistor (11) and ground, a comparator (106) for comparing a voltage acro...
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WO/2023/083672A1 |
The present invention relates to a machine tool having a tool, wherein: the tool can be driven by an electric motor; the machine tool can ascertain a current flow and compare said current flow with an expected value for the current flow;...
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WO/2023/071644A1 |
The present application relates to a construction method and apparatus for a directional vibration waveform and an adjustment method and apparatus for a directional vibration waveform. The construction method comprises: constructing a pi...
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WO/2023/046997A1 |
The invention relates to a DC motor (5) which comprises at least one switch (3) of a turning unit (4) which is adapted to switch the DC motor (5), wherein a circuit breaker (2) is mounted in series with the at least one switch (3) of the...
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WO/2023/028381A1 |
Systems and methods involving dynamic recharge features and functionality for electric vehicles and other applications are disclosed. In one example, an illustrative electro-mechanical power system may comprise an electric vehicle (EV) m...
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WO/2023/282803A1 |
The present invention relates to a voice coil actuator 100 for control of a valve assembly (501) for controlling a flow of gas, comprising: a body assembly (101) comprising a magnetic material and a permanent magnet (203), wherein the bo...
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WO/2022/267483A1 |
A control method for a direct-current motor, comprising: determining a target rotating speed of a direct-current motor (S101); when the target rotating speed is greater than a maximum rotating speed of the direct-current motor capable of...
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WO/2022/269621A1 |
A table top wet grinder having an Electronic Controller positioned at the bottom assembly of a base unit characterized in that the Electronic Controller is adapted for operation of Wet grinder functions, Centrifugal Juicer functions. Col...
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WO/2022/260113A1 |
A motor control device (11) is provided with a control unit (21) which controls a direct current motor (M) and which calculates an amount of rotation of the direct current motor (M) on the basis of the number of peaks in a detected induc...
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WO/2022/255491A1 |
A motor control device (11) comprises a control unit (21) that controls a direct-current motor M and that calculates the rotational amount of the direct-current motor M on the basis of the number of peaks in a detected electric current w...
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WO/2022/243059A1 |
An electric drive unit (100) for an electric hand-held power tool (1), having an electric motor (7) with a stator winding (12) and a rotor winding (14), a control circuit (4) for controlling the electric motor (7) and a connection unit (...
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WO/2022/242300A1 |
Provided are a method and device for adjusting a vibration waveform of a linear motor, performing at least one of the following: obtaining the frequency of a steady-state waveform of a vibration description file, and mapping to a target ...
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WO/2022/246176A1 |
A method is provided for monitoring a motor within a seat assembly in an automotive vehicle. The method comprises the steps of measuring raw current values drawn by the motor to reposition the seat assembly, temporally dividing the raw c...
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WO/2022/241204A1 |
A device may include an rectifier with one or more transistors that accepts a three phase AC input and generates a DC bus output, a low-pass filter to provide a filtered DC bus voltage, a driver to drive the transistors based on a modula...
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WO/2022/222682A1 |
Provided in the present invention is a control method for a rotation speed of a direct-current brushed motor. The method comprises: setting a control period of a motor in a control circuit of a blower; and configuring the number of motor...
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WO/2022/221046A1 |
An electronic motor control system provides selectable linear and pulse-width modulated (PWM) operation without generating cross-over distortion. The system includes an output stage that has a pair of push-pull drivers each coupled to a ...
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WO/2022/188380A1 |
The present disclosure relates to a motor control circuit, including: a switch circuit section, powered by a power supply to drive a motor to output a motion; a switch drive circuit section, capable of sending a drive signal in a valid s...
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