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WO/2022/084017A1 |
Device (100) for determining the angular position of a rotor (4) of a rotating electric machine on the basis of signals delivered by a plurality of position sensors (20), this device comprising: - a circuit (103) producing a control loop...
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WO/2022/085050A1 |
A motor driving device (2) comprises: an inverter (11) that converts a DC voltage into an AC voltage and that applies the converted AC voltage to a single-phase motor (12); and a voltage detector (21) that detects a motor induced voltage...
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WO/2022/080241A1 |
The present invention concerns a method and a device for controlling a three-phase motor using a field oriented control system. The invention: - estimates, in a dq plane incremental inductances (I) and (II) of the motor, - determines an ...
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WO/2022/075952A1 |
This invention relates to a mechanism allowing motion of axial electrical engines stator group in radial direction. The invention particularly enables change of speed and torque values of electrical engine by changing reverse electro-eng...
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WO/2022/076825A1 |
A method performed by a controller of an electric motor, including generating control parameters, the step of generating control parameters selected from: inputting a given reference torque (Tref) and a speed command to a torque generati...
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WO/2022/074361A1 |
A method of controlling a brushless permanent-magnet motor having a phase winding and a rotor includes monitoring a value indicative of back EMF induced in the phase winding during oscillation of the rotor about a parking position, and u...
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WO/2022/076889A1 |
A power tool may include a motor, a controller configured to control operation of the motor, a drill assembly configured to control operation of a cutter with respect to a workpiece responsive to operation of the motor, and a liftoff pro...
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WO/2022/068062A1 |
A drive control apparatus and a gimbal, which relate to the field of voltage sampling, and are used for solving the problem whereby since the voltage differences of a signal line and a power source line are different, a reference voltage...
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WO/2022/064188A1 |
A method of determining a position of a rotor of a brushless permanent magnet motor includes measuring a current value indicative of current flowing through a phase winding of the motor and providing a reference voltage value indicative ...
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WO/2022/065884A1 |
Various embodiments disclosed herein relate to an electronic apparatus including a flexible display. According to an embodiment, an electronic apparatus including a flexible display may be provided, the electronic apparatus comprising: a...
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WO/2022/064510A1 |
The present invention discloses about a six phase stator winding (220) scheme of a motor (200) that has reduced MMF harmonics characteristics. The stator winding (220) has two sets, i.e a first set (305) and a second set (310) of three p...
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WO/2022/063068A1 |
A protection device and a brushless motor system, for use in reducing the cost of the brushless motor system and ensuring the normal operation of a brushless motor. The protection device (300) comprises a field suppression device (301) a...
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WO/2022/066295A1 |
Disclosed are various techniques operating a linear resonant actuator (LRA). In some aspects, a method for operating an LRA includes generating an LRA control signal having a period, the period having an active portion and a high-Z porti...
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WO/2022/064993A1 |
This ceiling fan (100), which comprises a motor (3) for rotating a blade, comprises: a speed detection unit (54) which detects the rotating speed of the motor (3); a control unit (52) which controls a drive voltage supplied to the motor ...
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WO/2022/062498A1 |
Disclosed is a power factor correction (PFC) circuit for a brushless DC water pump having AC input. The PFC circuit comprises a FAN6982 chip circuit and a voltage boost circuit. The FAN6982 chip circuit is used to perform power factor co...
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WO/2022/053127A1 |
There is provided a drive circuit (300) for a permanent magnet motor (311). The drive circuit (300) has a rectifier circuit (307) constructed and arranged to convert a source alternating current (305) to a direct current, and a film capa...
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WO/2022/053214A1 |
The invention relates to a power tool (2), in particular a handheld power tool, for example a grinding machine, comprising a tool (5), an electric motor (6) for driving the tool (5), and a control unit (7) for actuating the electric moto...
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WO/2022/054232A1 |
Provided is a rotating machine control device that is capable of accurately reducing ripple components by correcting the output torque of the rotating machine, even when the phase of a ripple component relative to the angle of rotation c...
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WO/2022/047834A1 |
An HVAC system control unit and an HVAC system. The HVAC system control unit comprises a first functional module, i.e. a main control module (7) which is used for receiving a control signal of an external temperature controller, and cont...
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WO/2022/050296A1 |
The present invention provides a control device and a control method for a brushless motor, which are able to suppress step-outs due to reverse rotation during low-speed sensorless control of a brushless motor. The control device for a...
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WO/2022/049026A1 |
In order to control the movement of a transport unit of a linear motor, a quality function J(SG) with quality terms JTk(SG) is used as a function of manipulated variables (SG) of the active drive coils (4), and the quality function J(SG)...
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WO/2022/048704A1 |
The invention relates to a method for modulating the torque ripple and/or the radial force of a three-phase current-operated electric machine (10), in particular of an electric drive machine of a motor vehicle able to be driven by an ele...
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WO/2022/040934A1 |
A brushless direct current motor driving method and circuit, and a device and a storage medium. The driving method comprises: when a count of a counter of a PWM module reaches one of preset thresholds, triggering an ADC module to collect...
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WO/2022/047438A1 |
In some aspects, a controller may obtain a back electromotive force (BEMF) signal associated with a haptic feedback component, wherein the BEMF signal is generated by movement of the haptic feedback component. The controller may determin...
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WO/2022/026111A9 |
A resolver excitation output stage amplifier. Disclosed embodiments comprise an amplifier stage and a current protection circuit. The amplifier stage includes one or more amplifier transistors coupled to first and second supply terminals...
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WO/2022/044347A1 |
Provided are a rotating electric machine control device and an electric power steering device capable of suppressing the increase of rotational angle error due to a high frequency noise component included in a current detection value whi...
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WO/2022/046601A1 |
Systems and apparatuses include an alternator including a stator and a rotor structured to be coupled to a crankshaft of a prime mover, and processing circuits structured to: determine a crankshaft position, associate a crankshaft timest...
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WO/2022/038406A1 |
An electric winding exchanger system increases torque or speed performance of multi-phase electric motors and electric drive modules. The system includes an electronic control unit, a back electromotive force (EMF) boosting circuit, a pl...
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WO/2022/034674A1 |
This electric motor driving device comprises: an inverter (30) for supplying an AC voltage, the frequency and voltage value of which are variable, to an electric motor (7) in which a speed change occurs due to a periodical load variation...
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WO/2022/034629A1 |
The present invention solves a problem that, when high-accuracy position control is performed in a low-speed rotation range, a motor does not follow a control signal during a high-speed rotation. This rotary encoder is provided with an...
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WO/2022/030290A1 |
This motor drive device (10) comprises: a PWM drive control unit (4) for generating a PWM signal (Spwm) on the basis of a rotation speed signal (FG) indicating the rotation speed of a motor (20) and a speed command signal (S1) indicating...
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WO/2022/032098A1 |
A system for controlling a capacity of a compressor includes a motor of the compressor including a main winding connected at a connection point to an auxiliary winding and a drive configured to control a speed of the motor. The system in...
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WO/2022/027794A1 |
Disclosed are a combined electric motor controller and a combination method therefor. The combined electric motor controller comprises a power source module, an electric motor control module and an I/O module, wherein one electric motor ...
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WO/2022/029949A1 |
A motor control device (200) is provided with: a target rotational position acquisition unit (31) that acquires the target rotational position (TRP) of a rotor (5) in a motor body part (400); a rotational position calculation unit (32) t...
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WO/2022/018841A1 |
This power conversion device is characterized in that: when a current detection resistor (8) is connected between a lower arm switching element (SN) of an inverter (6) and a negative electrode side input terminal, the conductive resistan...
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WO/2022/009201A1 |
Circuitry for directly providing drive power to a BLDC motor having separated coils, comprising unipolar controlled current sources for supplying current to each of the separated coils; a controller, for controlling the level and phase o...
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WO/2022/009599A1 |
This motor control device controls a motor which is driven by a three-phase alternating current and is equipped with a magnetic pole position sensor for measuring the magnetic pole position of a rotor, by using a detected value of the ro...
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WO/2022/008241A1 |
The invention relates to a method and to a ventilator system which is designed to carry out the method. The method is used to ascertain a current operating point of a ventilator unit (11) having a ventilator (13) and at least one filter ...
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WO/2022/004002A1 |
A motor characterized by comprising a rotor rotatable around the central axis, a stator radially facing the rotor, a magnet attached to a shaft of the rotor and having at least one pair of poles in a row in a rotation direction of the ro...
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WO/2022/001088A1 |
A DC brushless motor rotor position detection method, belonging to the field of motor control. The method comprises: detecting a level signal detected by a Hall position sensor connected to a DC brushless motor; when it is detected that ...
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WO/2022/003658A1 |
The stator discs with disk magnetic quines instead of a permanent magnet, reduce the production of heat from rotor rotation, which includes a circular arrangement and these circular shape arrays with equal intervals are parallel to the r...
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WO/2022/003761A1 |
Provided is a rotary encoder that has a function for responding to battery loss, has high performance, and is compact and inexpensive. This rotary encoder comprises an MR sensor unit, a battery loss response unit that generates power a...
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WO/2021/253562A1 |
A commutation error compensation system without a position sensor for a brushless motor, comprising: a brushless motor (200) and a commutation logic module circuit (100). The commutation logic module circuit (100) is connected to three v...
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WO/2021/256481A1 |
A flow rate control device according to one embodiment is provided with: a flowmeter that repeatedly generates a pulse signal according to the flow of a fluid discharged from a fluid machine being driven by a brushless motor or an AC mot...
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WO/2021/256480A1 |
A flow rate control device according to one embodiment comprises: a flow rate meter that detects the flow rate of a fluid which is discharged from a fluid machine by the driving of a motor; and a controller that changes the frequency of ...
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WO/2021/255600A1 |
The invention relates to an engine controller (1) which is designed to be attached to an engine transmission unit (4) having an engine (5) to be controlled by the engine controller (1) and having a transmission (9) able to be driven by a...
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WO/2021/257435A1 |
The subject matter of this specification can be embodied in, among other things, an electric actuator driver that includes a first input port configured to receive an analog electrical servo control signal, a second input port configured...
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WO/2021/250376A1 |
A method of actuating an article using a servo actuation system is disclosed. The system comprises a motor, a controller and an inverter. The controller comprises a position controller, a velocity controller and a current controller; the...
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WO/2021/250077A1 |
The invention relates to a method (100) for controlling a planar drive system (200), comprising: controlling the rotor along a control path starting from a first position (P1) on the stator module (300), in a control step (101); determin...
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WO/2021/250917A1 |
This detection signal correction method comprises: calculating a rotation angle of a rotation shaft of a motor (10) on the basis of a detection signal of a sensor (20) (S1); calculating a steering speed of a steering shaft on the basis o...
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