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Matches 1 - 50 out of 23,190

Document Document Title
WO/2019/150214A1
An impact tool (1) comprises: - a housing (2); - a rotating hammer arranged in the housing and rotatable by a motor; - a rotating anvil arranged in the housing and rotatable by the hammer by a series of impacts; - an output shaft (3) rot...  
WO/2019/150758A1
This fluid discharge device is equipped with an impeller for causing a fluid to flow from an intake port to a discharge port, a DC motor for rotating the impeller, a housing for housing the impeller, and a DC motor control device. A disc...  
WO/2019/150759A1
This fluid discharge device is equipped with an impeller for causing a fluid to flow from an intake port to a discharge port, a DC motor for rotating the impeller, a housing for housing the impeller, and a DC motor control device. A disc...  
WO/2019/150681A1
Provided are: a linear drive mechanism in which a reduction in the measuring accuracy of a detector can be prevented; and a shape measuring machine provided with the linear drive mechanism. This liner drive mechanism is configured so tha...  
WO/2019/147125A1
A control unit is presented for controlling a driving unit arranged for adjustment of one or more first air guiding flaps of a motorised vehicle between a first outer position and a second outer position. The control unit comprises a com...  
WO/2019/144043A1
A power tool is provided. The power tool includes a rotatable tool holder adapted to receive a work instrument, a motor adapted to drive the rotation of the tool holder, a housing containing at least the motor and a handle extending ther...  
WO/2019/136130A1
A power tool including a three-phase DC motor, a power switching network, a power source, and an electronic processor. A first phase of the motor is connected between a first high side electronic switch and a first low side electronic sw...  
WO/2019/129327A1
The present invention relates to an electric system of a wind turbine facilitating control of a DC motor of the wind turbine, the electric system comprise a frequency converter connected to an AC voltage supply and the DC motor connected...  
WO/2019/122382A1
The invention relates to an electric motor-driven furniture drive comprising at least one adjustment drive (7, 8) for moving at least one movable furniture component relative to another furniture component by means of an electric motor, ...  
WO/2019/125832A1
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/2019/108176A1
Technical solutions are described for generating an output torque from a multi-winding PMDC motor. An example method includes generating, by a current controller, a first voltage command for a first winding set from a plurality of windin...  
WO/2019/074370A3
Driving an electromotor and a brushed electromotor in particular results in ripples in the supply current. The amount of pulses is proportional to the amount of revolutions of the rotor of the electromotor. With a flawless motor, the amo...  
WO/2019/087364A1
As a means for determining the presence or absence of a failure of a rotation sensor, a control device of a direct current (DC) motor is provided which is capable of using an output signal of an inexpensive Hall element to generate posit...  
WO/2019/082785A1
A device 1 for detecting rotation direction has a current detector 11 that detects the direction of current flowing in a motor 3, a voltage detector 12 that detects each voltage before and after the motor 3 in a power supply line 4, and ...  
WO/2019/080793A1
A motor driving circuit. The motor driving circuit comprises a first switch (K1), a second switch (K2 and 30), a third switch (K3 and 40), and a first transistor (Q1), where: one end of the first switch (K1) is connected to a power suppl...  
WO/2019/077889A1
This noise removal circuit 1 has: a differential amplifier circuit 11 for amplifying and outputting a voltage change signal indicating the change of motor drive current; a V/I conversion unit 12 for converting a control signal formed on ...  
WO/2019/075934A1
Provided are a transmission method and a transmission apparatus applying the transmission method. The method involves: enabling a circumferential single-pole magnetic area A arranged on a rotary structure body A(1) to magnetically intera...  
WO/2019/074370A2
Driving an electromotor and a brushed electromotor in particular results in ripples in the supply current. The amount of pulses is proportional to the amount of revolutions of the rotor of the electromotor. With a flawless motor, the amo...  
WO/2019/070416A1
An apparatus can comprise a circuit and an electrical element coupled to the circuit. The circuit can include a pulse generator to generate an electrical pulse having a first power and a load. The electrical element can be configured to ...  
WO/2019/071034A1
An apparatus can comprise a DC power supply to generate a DC electrical signal, a pulse generator to generate an electrical pulse, and an electrical element. The pulse generator and the DC power supply can be electrically coupled togethe...  
WO/2019/068517A1
The invention relates to a method for determining a rotation variable of a rotatably mounted rotor (26) of a mechanically commutated electric motor (12), having a motor current path (52) formed between two brush elements (40) of the elec...  
WO/2019/048558A1
The invention relates to an emergency power control device (1) for a DC motor (3). In a non-emergency mode the DC motor (3) is supplied with armature current and shunt current by a power converter (2). The emergency power control device ...  
WO/2019/042537A1
The invention relates to a drive with integrated dynamic load control, comprising: a mains-fed three-phase asynchronous motor having three winding phases connected in star, wherein the phase windings each have at least one field winding ...  
WO/2019/042936A1
The aim of the invention is to provide a method for electrically controlling a motor comprising multiple winding strands, wherein the EM compatibility is improved and simultaneously the running behavior of the motor is kept constant. Thi...  
WO/2019/044533A1
A motor control device 1 comprises: a motor control unit 20 that controls power to be supplied to a motor 10; a deriving unit 30 that derives the determination ratio of power to be supplied to the motor 10 on the basis of a detection res...  
WO/2019/026585A1
The invention addresses the problem of providing: a transport mechanism that allows both high transport capacity and the protection of transport items and the mechanism itself; a medium processing device using same; and a transport metho...  
WO/2019/022711A1
Examples relate to back electromotive force controllers for influencing movement of a carriage of a device in an unpowered state; the carriage being moveable by a motor responsive to a motor driver; the controller comprising: braking cir...  
WO/2018/226120A1
The invention relates to converter technology and is intended for use as a traction converter in alternating-current locomotives. The technical result is an increase in the power factor, and smooth regulation of the voltage in commutator...  
WO/2018/214380A1
Disclosed are a drive method and a drive circuit (302) for a flat motor (303), and an electronic apparatus (300). The drive method is applied to the electronic apparatus (300) comprising a signal trigger circuit (301), the drive circuit ...  
WO/2018/206846A1
According to an example aspect of the present invention, there is provided a DC to DC converter module for use between an electric power source and an electric motor. The DC to DC converter module having: a DC to DC converter; input term...  
WO/2018/207698A1
A rotation angle detector (100) includes: a rotation angular velocity calculation unit (31) for calculating the rotation angular velocity (ω) of an electric motor (10) on the basis of detection results from a voltage detection unit (10a...  
WO/2018/205973A1
A control device and method for a motor of a power-operated tailgate of an automobile. The control device for a motor of a power-operated tailgate of an automobile comprises a controller (1), a drive module (2), a measurement unit (4), a...  
WO/2018/207680A1
A rotation angle detector (100) for detecting the rotation angle of an electric motor (10) equipped with a commutator (20) includes: a resistance setting unit (37) for setting a resistance value that corresponds to the resistance propert...  
WO/2018/204134A1
A power conversion unit may include two or more power modules for providing high- voltage direct current power to electrical loads, such as one or more propulsion motors aboard an aerial vehicle. Each of the power modules may be controll...  
WO/2018/204550A1
Disclosed herein is a power tool that includes a direct current power source, motor, and motor controller. In some embodiments, the power source comprises a battery pack configured to supply current at a nominal voltage in excess of 100 ...  
WO/2018/199104A1
A rotation angle detector 100 that obtains information on the rotation of an electric motor 10 equipped with a commutator 20 includes: a rotation angle calculation unit 32 for calculating the rotation angle θ of the electric motor 10 on...  
WO/2018/185863A1
Provided is a low-cost control device for a DC motor, the control device having a function of detecting an absolute rotation angle of a rotary shaft. This motor control device is provided with a control unit and an MR sensor unit having ...  
WO/2018/175536A1
An electrically powered vehicle having software to facilitate variable control of a motorized wheel. The software can modify the manner in which electricity is provided to phases of a motor of the motorized wheel. In some aspects, the mo...  
WO/2018/174267A1
Two control input pins INA, INB receive two control input signals from the outside. Corresponding to the two control input signals INA, INB, a logic circuit 110 generates an internal signal SINT that instructs the state of an H bridge ci...  
WO/2018/168085A1
A motor control device 1 has: a drive signal generation unit 14 that generates a drive signal in accordance with the rotational torque generated by a DC motor 2 and outputs the drive signal; a sensor interface unit 15 that receives a det...  
WO/2018/158647A1
An anti-pinch method for an apparatus for automatic movement of sliding windows in a motor vehicle, in particular a power-window apparatus, comprising a d.c. electric motor (M) that moves a window (F) so that it slides along guides, said...  
WO/2018/138807A1
A motor drive device (2) is provided with: a single phase inverter 11 for applying an AC voltage to a single phase motor (12); a position sensor 21 attached to the single phase motor (12) and detecting the rotor rotational position of th...  
WO/2018/135949A8
A control unit is presented for controlling a driving unit arranged for adjustment of one or more first air guiding flaps of a motorised vehicle between a first outer position and a second outer position. The control unit comprises a com...  
WO/2018/135949A1
A control unit is presented for controlling a driving unit arranged for adjustment of one or more first air guiding flaps of a motorised vehicle between a first outer position and a second outer position. The control unit comprises a com...  
WO/2018/123453A1
A device (100) which acquires information relating to the rotation of an electric motor (10) that is provided with a commutator (20) includes: a rotation angle calculation unit (32) that calculates a rotation angle (θ) of the electric m...  
WO/2018/123426A1
Provided is a device (100) for acquiring information on the rotation of a motor (10), said device comprising a rectifier that includes a rotational angular velocity calculation unit (31) for calculating a rotational angular velocity (ω)...  
WO/2018/121548A1
A DC electric drive apparatus and an electric device. The DC electric drive device (10) is provided in an electric device to drive the electric device, and comprises: a DC motor (11), for driving the electric device; a DC power source, f...  
WO/2018/117286A1
The objective of the present invention is to provide a compressor that is applied to a refrigerator without a cycle matching capability or a refrigerator without a control unit and can control the driving of a linear motor by itself, in ...  
WO/2018/116047A1
A modular tool system is disclosed that has a power unit, a battery, a controller, a sensor, and a plurality of tool modules. The hand-held sized power unit can include a motor housing and a motor with a shaft. The controller can variabl...  
WO/2018/095159A1
An unmanned aerial vehicle and control method therefor, the unmanned aerial vehicle comprising: a flight control system (101), an electronic governor (102), a plurality of motors (103) and a propeller connected to the motors (103); the e...  

Matches 1 - 50 out of 23,190