| Document |
Document Title |
|
WO/2022/179298A1 |
Provided are a timing adjustment method, a terminal device and a computer-readable storage medium. The timing adjustment method comprises: acquiring a duty cycle of a first pulse width modulation waveform, wherein a low level state is co...
|
|
WO/2022/175928A1 |
A smart motor (100), comprising a rotor (152), a plurality of magnets (154) disposed on the rotor (152), a plurality of stators (156) having winding of wires, cascaded in parallel or series, placed around the rotor (152) and the pluralit...
|
|
WO/2022/174284A1 |
An electronic clutch for a sensorless brushless DC motor, wherein the clutch does not utilise any rotor position sensors in determining its operation. Preferably the clutch utilises a voltage measurement across a series of power transist...
|
|
WO/2022/161753A1 |
Disclosed is a throttle valve body assembly (1) for a heat engine machine, the throttle valve body assembly (1) comprising an air circulation channel (5), a throttle valve (10) mounted on an axis of rotation (X) in the air circulation ch...
|
|
WO/2022/151355A1 |
The embodiments of the present application relate to the field of chips. Disclosed are an electric motor driving method, apparatus and system. The solution may comprise: when an electric motor control apparatus determines that an electri...
|
|
WO/2022/144669A1 |
A motor controller (100) is provided for smooth operation of an electric motor (102), which mitigates torque ripple, noise and vibration effects, and increases a life span of the motor (102). The motor controller (100) includes a speed c...
|
|
WO/2022/144610A1 |
DC three-phase DC motor with disc coils with 12 independent windings, a rotor, disc-shaped stators, and an electronic control system. Independent windings form three separate phases and are connected by switch circuits (switching transis...
|
|
WO/2022/142840A1 |
Provided are an electric tool and a control method therefor. The tool comprises: a motor (201); a battery pack (203) which provides a power supply; a switching circuit (202) which outputs a power-on signal or a power-off signal; a first ...
|
|
WO/2022/134152A1 |
Disclosed in the present invention is a bidirectional freewheeling circuit for a direct-current motor. Two unidirectional freewheeling circuits are connected in parallel between a power supply and a direct-current motor; the two unidirec...
|
|
WO/2022/130283A1 |
A control circuit and method for DC motors is disclosed in the present application. The control circuit may comprise a voltage monitoring unit for monitoring the output voltage of the DC power supply, a switching circuit for controlling ...
|
|
WO/2022/123461A1 |
A voltage regulation and speed regulation control circuit (100, 130, 200, 250) of an air pump (102) is provided. The voltage regulation and speed regulation control circuit (100, 130, 200, 250) may comprise a chopper power supply circuit...
|
|
WO/2022/111772A1 |
The invention relates to a method for operating a DC motor (M), in which the DC motor (M) is supplied with a variable direct current voltage via a bridge circuit (4) fed from a supply voltage (VS) and formed by a first (T1), a second (T2...
|
|
WO/2022/110259A1 |
A vibration generation method and apparatus, a vibration control method and system, an electronic device, and a storage medium. The vibration generation method comprises: step S22, identifying an audio beat in an audio signal; step S24, ...
|
|
WO/2022/108866A1 |
Disclosed is a ripple counter (200) with a dynamic bandpass filter for a DC motor. The ripple counter includes a current sense amplifier (210) configured to provide an analog voltage responsive to an inline current in rotor windings of t...
|
|
WO/2022/101026A1 |
The invention relates to a method for determining losses, wherein, in a first method step, the losses P HL_1 of the first drive are determined according to (I), wherein (II) applies, wherein i and j number the frequencies fij, in particu...
|
|
WO/2022/085109A1 |
This motor drive system of an embodiment comprises a power converter, a status detector, a frequency calculator, a frequency correction command generator, a drive amount limiter, and a speed controller. The power converter drives the mot...
|
|
WO/2022/050179A1 |
Provided is an electric motor (1) that detects the rotational speed of the electric motor from a waveform of electric current flowing in the electric motor, the electric motor (1) comprising: a rotary shaft (21); a commutator (30) attach...
|
|
WO/2022/026957A1 |
An electric machine includes a stator defining multiple stator poles with associated stator windings configured to receive a stator current. The electric machine also includes a rotor defining multiple fixed rotor poles with associated r...
|
|
WO/2022/009246A1 |
Embodiments described here concern a method to control a direct current motor (50) powered by an alternating supply voltage (Vin), which provides to detect the instant of the zero-crossing of the supply voltage (Vin) and to selectively a...
|
|
WO/2021/258484A1 |
The present invention provides a motor protection method and device in a vibration system, and a computer-readable storage medium. The motor protection method comprises: acquiring a time-frequency curve of an original excitation voltage ...
|
|
WO/2021/258483A1 |
A method and device for generating a voltage driving signal, and a storage medium. The voltage driving signal is used for driving a motor. The method comprises: providing an expected vibration acceleration signal (S100); determining, acc...
|
|
WO/2021/257837A1 |
An electronically power-adjusted tattoo machine, power supply, and methods for controlling needle reciprocation are disclosed. The dynamic power adjustment controls needle impact force of a tattoo machine through electronic circuitry whi...
|
|
WO/2021/252588A1 |
Systems and methods for braking a power tool motor based on a phase voltage of the motor. The power tool includes a motor and a power source providing operating power to the motor. A power switching network is between the power source an...
|
|
WO/2021/251273A1 |
A first terminal (T1) that is one end of a DC rotating machine (710) is connected to a phase current path of a multi-phase winding set. A multi-phase power converter (60) converts the DC power of a power supply (Bt) to multi-phase AC pow...
|
|
WO/2021/232975A1 |
An electric motor driving system and a vehicle, which relate to the technical field of vehicle control and can simplify the structure of the electric motor driving system and reduce costs. The electric motor driving system comprises a bi...
|
|
WO/2021/228780A1 |
The present invention relates to an actuator comprising a) a mounting system fitted for the rotatable shaft of a fluid flow controller, b) an electric motor unit adapted to transfer a torque to said mounting system via a worm drive, and ...
|
|
WO/2021/226201A1 |
A method for operating an electric drive system is provided. For example, a controller retrieves, from memory, a predictive model indicating predictive winding temperatures associated with known negative temperature coefficient (NTC) tem...
|
|
WO/2021/225590A1 |
According to one aspect, a starter-generator control unit may include a comparator, a pulse width modulation (PWM) duty cycle generator, a randomizer, and a sequencer. The comparator may receive a current reading from a current sensor an...
|
|
WO/2021/219190A1 |
The invention relates to a method (52) for determining a rotor position (46) of an electric motor (8) of a motor vehicle (2), in particular a commutator motor. The method (52) provides that a motor current (28) is detected, and that, on ...
|
|
WO/2021/208121A1 |
Disclosed in embodiments of the present application is a method for quickly stopping a vibration system, comprising: obtaining an initial vibration waveform to be processed; determining a balancing voltage signal of the initial vibration...
|
|
WO/2021/204523A1 |
The invention relates to a method for operating a magnetic actuator (200), in particular for actuating an optical element (510) in an optical system (500), which is designed to provide a mechanical force (A) as a function of an electrica...
|
|
WO/2021/196491A1 |
Disclosed is a stepless speed regulation control system for a percussion massage gun, in which by means of a touch-control display screen and according to different operations of a user on a virtual button for gear control, an electric m...
|
|
WO/2021/169346A1 |
An adapter (100) of an electric tool and an electric tool system, relating to the field of electric tools. The adapter (100) of an electric tool comprises: a housing (1) having a first opening (11); a control module (2) used for controll...
|
|
WO/2021/166943A1 |
An abnormality monitoring apparatus (401, 402) comprises: a drive circuit unit (41); a current detection unit (45-47); a current interrupting unit (42); a first control unit (51); and a second control unit (52). The drive circuit unit (4...
|
|
WO/2021/134359A1 |
Provided is a motor steady-state single-frequency distortion compensation method, characterized in that the method comprises: a construction step: obtaining an expected acceleration spectrum according to an excitation signal and a motor ...
|
|
WO/2021/119672A1 |
Handwheel systems, including control consoles incorporating handwheels of the inventive subject matter, are described in this application. Handwheels described in this application can be used to control remotely located motors, especiall...
|
|
WO/2021/117669A1 |
A drive device for an electric motor according to the present invention has: a first relay that turns a power supply line from a power source to the electric motor on and off; a resistor provided to a bypass line that bypasses the first ...
|
|
WO/2021/112035A1 |
A motor control device (40) controls driving of a motor (10), in a motor drive system (1) equipped with the motor (10) and a detent mechanism (20). The detent mechanism (20) has: a detent member (21) that rotates integrally with an outpu...
|
|
WO/2021/103311A1 |
An electronic device and a control method therefor, and an apparatus and a readable storage medium. The electronic device comprises a middle frame (40), a first motor (20), a second motor (30) and a drive module (10); the first motor (20...
|
|
WO/2021/091657A1 |
A device that includes a memory and a processor is disclosed. The processor may be configured to receive a control signal for operating a plurality of traction motors of a work machine. The control signal may include information relating...
|
|
WO/2021/083164A1 |
Disclosed are an adapter for an electric tool and an electric tool, relating to the field of electric tool instruments. The adapter for an electric tool comprises: a shell (1); a control module arranged in the shell (1), the control modu...
|
|
WO/2021/081790A1 |
An electric motor control apparatus (10), a device, a system, and a control method for the electric motor control apparatus. The electric motor control apparatus (10) comprises: a phase voltage measurement circuit (11), a control circuit...
|
|
WO/2021/083379A1 |
The present disclosure relates to a control apparatus, an electric tool main body and a tool system. The control apparatus is selectively mated to at least one electric tool main body in a detachable manner, and drives an electric motor ...
|
|
WO/2021/078758A1 |
The present invention relates to a method for driving electric motors using a pulse-width-modulated signal, wherein the pulse-width-modulated signal is a square-wave pulse consisting of successive impulses whose impulse duration is adjus...
|
|
WO/2021/069269A1 |
The invention relates to a method for controlling an electric motor (10) having a mechanical commutator (12), wherein in the method the points in time at which a commutation occurs are determined by means of a sensor (36) or without a se...
|
|
WO/2021/057233A1 |
The present invention provides a vibration device, comprising: a housing, which defines an accommodating space; a vibration motor, located in the accommodating space; a circuit board, located in the accommodating space and comprising a c...
|
|
WO/2021/051193A1 |
Brushless direct current (BLDC) motors are becoming more common, such as in cars and other vehicles. Unreliable BLDC motors or control systems can lead to risk of people's safety. A redundant BLDC control system is provided to control tw...
|
|
WO/2020/258202A1 |
A motor parameter tracking method and system, wherein the method comprises: by means of a voltage excitation signal, exciting a motor to work, and obtaining an actual voltage and an actual current at two ends of the motor in an operation...
|
|
WO/2020/258089A1 |
A method for generating a control signal, an electronic device, and a storage medium, the method comprising: acquiring a relationship curve between an initial signal and time (S101), the relationship curve comprising several sampling poi...
|
|
WO/2020/254109A1 |
The invention relates to a mechanically commutated brush motor (10) for a compressor device (100) having a compressor (8) for producing compressed air, said brush motor comprising: a rotor (9); a stator (11); a current sensor (14) for me...
|
