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WO/2022/104429A1 |
A controller for controlling a motor of a drill comprising an output of a signal for controlling a speed of rotation of the motor, a processor for producing the signal, wherein the signal is automatically varied according to a waveform, ...
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WO/2022/102510A1 |
An inverter control device (50) can be adapted in a system including power storage units (20, 41), a rotary electric machine (30) as a mobile power source of a mobile body (10), and an inverter (40). The inverter control device determine...
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WO/2022/102725A1 |
A power conversion device (20) is provided with: a first capacitor (24) connecting a first and second DC-side nodes (22c, 22d) of an inverter circuit (22); a surge voltage suppression circuit (25) which has a limiter diode (25b) connecte...
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WO/2022/095842A1 |
An output torque monitoring system and method for a vehicle drive system, and a vehicle. The output torque monitoring system (100) for the vehicle drive system comprises: a sampling module (10), which is configured to acquire voltage par...
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WO/2022/094659A1 |
A filter cup (100) holds ground coffee within a portafilter for attachment to an espresso machine to extract a dose of coffee. The filter cup (100) has a body (102) including a floor (104) with a plurality of perforations (106), a sidewa...
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WO/2022/094894A1 |
Provided is a method for testing an electric motor, comprising: according to a preset control logic, controlling a switching state of first and second power tubes driven by three half-bridges (S110); obtaining the bus current outputted f...
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WO/2022/091701A1 |
This motor control device (10) controls a brushless motor (40) having a rotor with a salient pole structure that is driven by an inverter circuit (13). The motor control device (10) comprises the inverter circuit (13), a current detectio...
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WO/2022/087897A1 |
An electric motor control method, an electric motor control apparatus, and a movable platform. The method comprises: an MCU (10) respectively outputting a plurality of pulse width modulation (PWM) signals for N electric motors (11); the ...
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WO/2022/092341A1 |
The present disclosure relates to a pulse width modulation (PWM) technique, for equalizing switching element heat distribution of a dual inverter, comprising the steps of: obtaining a positive command signal by extracting a positive sign...
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WO/2022/092572A1 |
The present invention relates to a control circuit and, more specifically, to: a complex motor and heater driving circuit, which can separately or simultaneously control a three-phase motor and a heater; and a control system therefor. Th...
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WO/2022/083031A1 |
An intelligent drum control method, relating to the field of motor control. The method comprises: S1: performing earth leakage lockout detection and wire feeding defect detection; S2: performing fault detection on a frequency changer; S3...
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WO/2022/083384A1 |
The present application discloses an electric tool, comprising: a motor, comprising a stator winding and a rotor rotating around a stator; a speed regulating mechanism, at least used for setting a target rotating speed of the motor; a dr...
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WO/2022/085639A1 |
An inverter circuit (120) has a circuit main body unit (130) and a conversion control unit (140) for controlling the circuit main body unit (130). A harmonic reduction device (200) has a current control unit (260) for controlling a harmo...
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WO/2022/083220A1 |
Provided are an electric drive system, a power assembly and an electric vehicle, which relate to the technical field of power electronics. The electric drive system is used for driving an electric motor, the electric motor comprising an ...
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WO/2022/083055A1 |
Disclosed is a frequency conversion system. The frequency conversion system comprises a frequency converter, and a regulation and control device, the frequency of which is adjusted by the frequency converter. The frequency conversion sys...
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WO/2022/085866A1 |
Provided, according to one embodiment, is a method for determining a current of an electric motor or a generator, the method comprising the steps of: acquiring characteristics of a filter for filtering noise occurring in a process for de...
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WO/2022/086900A1 |
Power tool devices (100) described herein include a housing (105), a power source interface (205), a field effect transistor (305, 310) within the housing (105) connected between the power source interface (205) and a load (290) of the p...
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WO/2022/085351A1 |
This motor control device controls the driving of an AC motor that is connected to a power converter for converting power from DC power to AC power, and that is driven using the AC power. The motor control device comprises: a carrier wav...
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WO/2022/083219A1 |
The present application relates to the technical field of power electronics. Provided are an electric drive system, a power assembly, and an electric vehicle. The electric drive system is connected to a power battery pack, and comprises ...
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WO/2022/080661A1 |
A power supply device is disclosed. The present power supply device comprises: a rectifier circuit for rectifying an inputted alternating current power supply; a capacitor circuit comprising a first capacitor and a second capacitor which...
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WO/2022/079796A1 |
This failure diagnosis device (1000) comprises: a control unit (100) for controlling the drive of an electric motor (53); an abrasion estimation unit (200) for estimating an abrasion amount of the bearing of the electric motor (53) on th...
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WO/2022/073534A1 |
In a power semiconductor circuit (1) for controlling an electrical machine (4) a direct current is determined by means of a change over time of a voltage at a DC link capacitor (2) of the power semiconductor circuit (1).
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WO/2022/073111A1 |
A converter with lower passive filter size and increased flying capacitor charging speed during the converter start-up uses a combination of a multi-level power converter circuit having a flying capacitor in which the first switching har...
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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/2022/075424A1 |
Provided is a power conversion device in which the phase of a resonance frequency component included in a DC link voltage (Vdc) which is the voltage of a capacitor (14a) is set so as to be approximately the same as the phase of a resonan...
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WO/2022/075202A1 |
This power conversion device comprises fuses that fuse at a prescribed rated current or higher on respective three-phase output lines, the power conversion device comprising: a short-circuit failure sensing unit that senses short-circuit...
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WO/2022/070446A1 |
Provided is a motor drive circuit capable of carrying out switching of PWM phases by limiting the occurrence of long continuous on (or off) times immediately after switching of a PWM signal phase. The motor drive circuit 100 comprises a ...
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WO/2022/071401A1 |
Defining fsw (kHz) as the carrier frequency adopted for generation of a drive signal (Sd), Pmax (kW) as the maximum input power of a power conversion unit (10), and Td (μs) as the dead time of the drive signal (Sd), the expression Td â‰...
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WO/2022/070935A1 |
A motor driving system (1) includes a main motor (75, 76), at least one sub-motor (71 to 73), a control circuit unit (11), a connector (31 to 33, 35, 36), and a motor connecting unit (43). The control circuit unit (11) has a main circuit...
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WO/2022/062103A1 |
A high-voltage permanent magnet frequency conversion all-in-one machine (100). The frequency conversion all-in-one machine (100) comprises: a frequency converter (102), used for performing frequency conversion on a high-voltage alternati...
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WO/2022/059399A1 |
This servo DC power supply system includes: a DC power supply; one or a plurality of motor control devices each controlling the corresponding servo motor; and a power supply path for distributing and supplying power from the DC power sup...
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WO/2022/057650A1 |
Disclosed are an inverter temperature control method and system, a vehicle, and a medium. The inverter temperature control method comprises: a sensing module acquiring rotation speed information of an electric motor; a torque control mod...
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WO/2022/059218A1 |
Provided is a motor drive circuit capable of reducing the ripple current of a capacitor. A motor drive circuit 100 comprises: three output terminals 102, a first input terminal P, a second input terminal N, a capacitor C, and three serie...
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WO/2022/054199A1 |
An embodiment of the present invention is provided with: a primary-side inverter 1 that is connected to three of six output terminals included in a motor 10 having an open winding structure in which three-phase windings are disposed inde...
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WO/2022/054654A1 |
A control device (50) is applied to a system comprising a rotating electrical machine (10), a direct-current power supply (30), and an inverter (20) that electrically connects the rotating electrical machine and the direct-current power ...
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WO/2022/049892A1 |
A higher-level control unit 1 generates a command current i* on the basis of a command value. A model prediction control unit 2 sets a plurality of assumed voltage vectors for each switching cycle of an output voltage. The switching cycl...
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WO/2022/050406A1 |
Dynamo-electric machine control devices (1 to 3) comprise: pre-adjustment d-axis current command calculation units (43, 53); d-axis current command calculation units (45, 155, 255); and feedback control units (47, 48, 59, 60). The pre-ad...
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WO/2022/049889A1 |
A motor having a first terminal and a second terminal to which a single-phase alternating current is to be input, the motor comprising: a third terminal; an AC/DC converter for converting the single-phase alternating current into a direc...
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WO/2022/045400A1 |
The present invention relates to a motor driving device, and a vehicle having same. The motor driving device according to an embodiment of the present invention comprises: a motor; and an inverter for outputting alternating-current power...
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WO/2022/044070A1 |
An electric motor drive device of an embodiment of the present invention comprises: an electric motor; a main circuit; a current sensor; and a control unit. The electric motor comprises a plurality of windings. The main circuit converts ...
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WO/2022/045111A1 |
A first fuse with an integral heater, including a first fuse element provided at a neutral point of a stator coil and a first heater portion which generates heat to cut the first fuse element, is provided in a stator coil, and a microcom...
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WO/2022/044231A1 |
According to this motor control method, a motor is controlled by using an alternating current apply voltage obtained by using an inverter driven by PWM control to convert a DC voltage. The control method comprises: calculating a voltage ...
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WO/2022/044299A1 |
Provided is a motor control device, which switches modulation modes to each other between asynchronous PWM control that controls a motor by fixing a PWM frequency and synchronous PWM control that controls the motor by making the PWM freq...
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WO/2022/044300A1 |
In the method for controlling a motor according to an embodiment, a motor is controlled by voltage phase control performed on the basis of a voltage norm command value representing the size of the voltage to be fed to a motor and a volta...
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WO/2022/042028A1 |
A high-frequency signal driving motor circuit. The circuit comprises an audio processing module (101), a motor driver (102) and a motor (103), wherein the audio processing module (101) is electrically connected to the motor driver (102) ...
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WO/2022/044230A1 |
A method for controlling a motor, in which a first mode or a second mode can be selected as the control mode for controlling the action of the motor according to the operation state of the motor. In the control method: when the second mo...
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WO/2022/040971A1 |
A direct torque control method and apparatus for an alternating current motor, an electronic device, and a computer-readable storage medium. The method comprises: obtaining an actual position of a stator flux linkage of the alternating c...
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WO/2022/045274A1 |
A controller is provided for generating carrier signals for a PWM generator controlling an inverter driving an electric actuator to reduce the EMI level of the inverter. The controller includes an interface configured to connect to the i...
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WO/2022/038669A1 |
This motor drive device drives a motor having a plurality of phase windings in a state of not being in contact with each other, and therefore comprises first and second invertors. The first and second invertors are first and second modul...
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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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