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Matches 1 - 50 out of 22,760

Document Document Title
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...  
WO/2020/249456A1
Provided is a swing door operator (110) for moving a door leaf (120) between a first position and a second position. The swing door operator (110) is arranged to operate in a powered and a powerless mode and comprises a permanent magnet ...  
WO/2020/245099A1
The invention relates to a circuit (1) for controlling an electric motor (2) of a window lifter (3) of a vehicle (4), wherein the electric motor (2) is configured to open a window (7), assigned to the window lifter (3), when a supply vol...  
WO/2020/234686A1
A method and apparatus for controlling operation of a BLDC, the BLDC comprises a plurality of stator windings, and the stator windings are isolated or isolatable so that a stator current flowing in one stator winding is independent of an...  
WO/2020/228064A1
Provided is a vibration control system for a motor. The system comprises: a transformation module, an equalization module, a first conversion module, a second conversion module, an error calculation module and an adaptive adjustment modu...  
WO/2020/216002A1
Provided are a detection method and a mobile terminal. The method comprises: when it is detected that a driving assembly starts to drive a camera to move, acquiring a current value input into the driving assembly; and determining, accord...  
WO/2020/219175A1
An image forming apparatus includes a print engine, a DC motor, a driving circuit, and a processor. The print engine forms an image. The DC motor drives the print engine. The driving circuit provides a current to the DC motor, and senses...  
WO/2020/219277A1
An apparatus and method to be implemented with a control loop system that includes machine set, wherein the machine set includes a working machine, an electric motor driving the working machine, and a final control element, and wherein t...  
WO/2020/211274A1
A BLDC motor, comprising a motor controller and a motor body. The motor body comprises a stator component, a rotor component, and a motor housing. The motor controller comprises a motherboard and a daughterboard. The motherboard comprise...  
WO/2020/207756A1
A method for determining a speed of an electronically commutated electric motor (14), in particular an electric motor (14) for a fan (11), wherein current measurement values (18, 19) are detected at multiple points in time which describe...  
WO/2020/200188A1
A smart tool system and a control method therefor, comprising: a smart electric tool (100), comprising: an output shaft (10) used for outputting torque; a motor (20) used for driving the output shaft to rotate; a housing (30) used for ac...  
WO/2020/172249A1
A central electronic control unit (ECU, Ref. 14) is provided for controlling at least one bi-directional direct current (DC) motor (106) attached to a first vehicle seat and at least one electronic device attached to a second vehicle sea...  
WO/2020/167124A1
A electric motor assembly is configured to determine a motor winding resistance value, which depends on temperature, for operations like filtering false ripples during ripple counting based motor revolution measurement, or motor winding ...  
WO/2020/163643A1
A motor control circuit with power factor correction capabilities that optimizes the voltage and current load applied to an electric motor for different motor speeds and torque levels. The preferred motor control circuit includes a power...  
WO/2020/158196A1
This current control circuit controls drive current supplied to an inductive load and has: a first mode in which the duty of the drive current is controlled to 100% until the current value of the drive current reaches a first target curr...  
WO/2020/153077A1
This motor control device controls a motor (11) and is provided as a separate entity from the motor. The motor control device includes: a switch (30) provided in an electric power supply path of the motor; a temperature detecting unit (3...  
WO/2019/125832A8
A technique of controlling tonal noises produced by an unmanned aerial vehicle (UAV) includes generating thrust with a plurality of rotor units mounted to the UAV to propel the UAV into flight. Each of the rotor units includes a bladed r...  
WO/2020/143206A1
A locomotive circuit of a dual internal combustion engine group and a control method and device thereof, a medium and equipment, the control method comprising: determining whether target output power required by a target dual internal co...  
WO/2020/135682A1
A series-excitation direct-current electric motor driving apparatus (100) and an electric device. The series-excitation direct-current electric motor driving apparatus (100) comprises: a series-excitation direct-current electric motor (1...  
WO/2020/135676A1
Provided is a serial-parallel excitation DC motor driving device (100), comprising: a serial-parallel excitation DC motor (10); a DC power supply (30); and chopper (20), wherein, the chopper (20) has m chopper units (21), the control sig...  
WO/2020/135688A1
A separately excited direct-current motor driving device (100) and electric equipment. The separately excited direct-current motor driving device (100) comprises: a separately excited direct-current motor (10); a direct-current power sup...  
WO/2020/133637A1
A parallel excitation DC motor driving device and electric equipment. Wherein the parallel excitation DC motor driving device (100) comprises: a parallel excitation DC motor (10); a DC power supply (30); and a chopper (20), which convert...  
WO/2020/135663A1
The present invention provides a parallel-series excited direct current motor driving device and an electric apparatus. The parallel-series excited direct current motor driving device provided by the present invention comprises a paralle...  
WO/2020/129922A1
This DC motor is configured so that, while either one of a pair of power feeding brushes makes contact with two commutator segments, the other makes contact with only one of two commutator segments. The DC motor is further provided with:...  
WO/2020/120069A1
The invention relates to a motor apparatus (12) for a switch drive (10) of an electric switch, having an electric motor (14) and a control apparatus (16) for controlling the electric motor (14), the control apparatus (16) having a power ...  
WO/2020/109240A1
The invention relates to a method for a failsafe monitoring process for monitoring the rotational speed of a sensorless three-phase drive (3). The three-phase drive (3) is actuated by a drive electronic system (2), which has an inverter ...  
WO/2020/108381A1
A stand mixer and a drive circuit for the same. The drive circuit for the stand mixer comprises a main control circuit (1); an electronic switch (2); a rectifier circuit (3) for establishing an electrical connection to the mains power; a...  
WO/2020/103954A1
A permanent magnet direct-current motor driving apparatus and electric equipment, comprising: a permanent magnet direct-current motor (10); a direct-current power supply (30); and a wave truncator (1-20). The wave truncator (1-20) is pro...  
WO/2020/097508A1
A motor controller for controlling the operation of a three-phase permanent magnet synchronous electric motor, wherein the three-phase permanent magnet synchronous electric motor is characterized by three phases A, B, C, and further wher...  
WO/2020/095709A1
Provided are a seat belt retractor and a seat belt device. The present invention comprises: a spool; a motor for rotating the spool; a switching element connected to the motor; a control circuit that switches the switching element via PW...  
WO/2020/093679A1
An embodiment of the present invention discloses a control system for a hair dryer, the hair dryer comprising an electronic switch electrically connected to a circuit board. The control system comprises: a power supply module supplying a...  
WO/2020/078701A1
The invention relates to a brushed DC motor for driving a compressor, in particular compressed-air generation with a compressor and a brushed DC motor, preferably for a pneumatic spring system, a brake system or similar compressed-air co...  
WO/2020/065216A1
The invention relates to a motor-control circuit (1) comprising (i) a main branch (10) allowing an electric motor (12) to be controlled via a control switch (101), and (ii) a flyback branch (11) placed to bypass the electric motor (12) i...  
WO/2020/057914A1
The invention relates to a motor apparatus (12) for a switch drive (10) of an electric switch, having an electric motor (14) and a control apparatus (16) for controlling the electric motor (14), the control apparatus (16) having: a recti...  
WO/2020/044062A1
A drive circuit (1) comprises first and second circuit loops (7, 8) connected in parallel across a DC power supply (20) to deliver pulsed DC to the power connection arrangement (31) of an electric motor (30) which is arranged to provide ...  
WO/2020/043091A1
Provided are a protection method and system for an inverter, and a vehicle. The inverter is used for driving an electric motor. The method comprises the following steps: acquiring a rotation speed of an electric motor; when the rotation ...  
WO/2020/031672A1
This motor drive device 10 has: an IPD1 for which a VBB pin and an IN pin are connected to the application end of a voltage V1, an OUT pin is connected to a node n1 of a DC motor 20, and that performs on/off control of a transistor M5 th...  
WO/2020/028287A1
A motor drive unit for driving a motor of a motorized window treatment may comprise software-based and hardware-based implementations of a process for detecting and resolving a stall condition in the motor, where the hardware-based imple...  
WO/2020/014914A1
Disclosed is an N-phase motor, wherein N is an integer and is greater than or equal to three, and the motor comprises: an outer casing; i×N stator windings that are fixedly arranged inside of the outer casing, i being an integer and gre...  
WO/2020/001218A1
An automatic coffee machine and an electric motor control circuit thereof. The electric motor control circuit of the automatic coffee machine comprises a power supply circuit, an H-bridge drive circuit, a first sampling circuit, a second...  

Matches 1 - 50 out of 22,760