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JP6915691B2 |
Provided is a power tool with which it is possible to perform braking in which deterioration and damage of elements are suppressed. In a brake control, a computation unit 21: performs switching control of a combination of any of upper-ar...
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JP6911793B2 |
To provide a control device of a robot capable of removing an influence of backlash generated in a drive mechanism of an arm.When a revolving shaft 25 is restricted by a brake 26, a microcomputer 13 for control sets a torque limit value ...
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JP6901329B2 |
In one aspect of the present disclosure, an electric working machine includes a three-phase brushless motor, a first switching element, a second switching element, a third switching element, a fourth switching element, a fifth switching ...
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JP6899654B2 |
An apparatus (100) may include a working assembly (220) configured to perform a work function responsive to operation of the working assembly, an electric motor (230) that powers the working assembly, a power source (210) configured to s...
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JP2021097476A |
To realize a motor drive device that prevents a large increase in DC link voltage due to abnormality occurrence.A motor drive device 1 includes: a converter 11 that converts AC power on an AC input side into DC power and outputs it to a ...
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JP6892029B1 |
The present invention relates to a motor drive control device and a motor drive control system having a function of determining brake release of a motor provided with a brake. The motor drive control device and the motor drive control sy...
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JP2021090343A |
To protect an individual especially well in an electromagnetic transport system 2.To guarantee a safe function, a safety range S is set within a transport area 20. Furthermore, according to a given safety requirement stage, a safety func...
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JP6879026B2 |
To provide a motor control device which can stop a movable body, driven by a DC motor, at an intended stop position.A motor control device 1 includes: a drive signal generator unit 14 which outputs a drive signal according to a running t...
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JP2021083154A |
To provide a motor drive device capable of shortening the time required from a rotor speed reduction starting time point to a stopping time point by performing speed reduction through feedback (FB) drive.A stepping motor 104a comprises a...
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JP2021083219A |
To provide a regenerative discharge system for improving reliability of a circuit while reducing components required for applying a brake.A regenerative discharge system 100 comprises: a motor M which drives a robot; an inverter circuit ...
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JP6874674B2 |
A shift range control apparatus switches a shift range by controlling a motor. The shift range control apparatus includes an angle calculator, a speed calculator and a drive controller. The angle calculator calculates a motor angle based...
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JP6874840B2 |
Provided is an electric tool which can be suitably controlled depending on which one among an adaptor device and a battery pack is connected. This electric tool (1) is provided with a motor (6), a control circuit (10) for controlling the...
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JP2021069198A |
To provide a motor control device capable of quickly and effectively stopping a rotation shaft at a specified position and achieving further acceleration of orientation operation.A motor control device 3 stops a rotation shaft rotating a...
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JP2021065074A |
To provide a motor control device capable of stopping the rotation of a rotor in the shortest possible time without demagnetizing a rotor magnet.When a rotor stop request is input while a rotor of a three-phase brushless DC motor is rota...
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JP6863815B2 |
To provide a control device capable of more accurately detecting a power failure.A control device 200 for causing an industry machine to execute retreat operation in detecting an occurrence of a power failure includes: a power supply vol...
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JP6863256B2 |
To provide a motor control device capable of switching a unit rotation amount of a rotary reel which is driven by a motor.A motor control device comprises: a communication unit 10 which receives a rotation amount setting signal represent...
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JP6856465B2 |
Provided is a brake inspection device including: load torque measurement units configured to respectively measure: load torques as a motor is normally rotated and reversely rotated in a released state where an operation of a brake for ho...
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JP2021049593A |
To provide a robot system that suppresses heating and a temperature rise of a control device due to regenerative resistance without adding a fan or a refrigerant.A robot system 100 is equipped with a robot body 101 that has robot arm por...
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JP6851495B2 |
An electric motor control device controls driving of electric motors connected in parallel with each other and includes a power converter converting power from a power supply, and supply the converted power to each of the electric motors...
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JP6846662B2 |
A turbocompressor apparatus includes a turbocompressor including a compressor motor, a lubrication pump including a pump motor, a converter that performs electric power conversion between a voltage of a power source and a direct-current ...
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JP2021044961A |
To provide a motor drive device that performs smooth deceleration control in a shorter period of time to accurately stop a rotor at a target position.The motor drive device is capable of open-loop (OL) drive, which switches power to a mo...
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JP2021044994A |
To provide an integrated actuator in which a regenerative resistance is omitted or simplified, and an actuator system including the actuator.An actuator 10 includes a motor 12, a drive circuit 11, a power supply line LP1 that connects a ...
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JP6839783B1 |
To provide a rotation speed determining device for determining whether or not a rotation speed of a motor is a rotation speed capable of making the motor stop in an emergency. A motor 11 connected to a rotated body 20 to rotate the rotat...
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JP2021030931A |
To provide an electric vertical take-off and landing aircraft that suppresses deterioration in flight stability of an airframe when electric power supply to a motor is stopped.An electric vertical take-off and landing aircraft 100 compri...
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JP6825945B2 |
To provide a motor-driven traveling device which suppresses unexpected movement of a vehicle body and releases a brake safely.A motor-driven traveling device comprises: a vehicle body; a travel driving motor which is capable of braking t...
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JP6814736B2 |
[Summary] A fan apparatus has a drive circuit for an electrically-driven rotor, and includes a drive signal generating circuit portion for the electrically-driven rotor; an output stage including an upper MOSFET and a lower MOSFET; and a...
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JP2021004938A |
To provide an image forming apparatus that can quickly stop a motor while recovering a regenerative energy.An image forming apparatus fixes a toner image transferred to a sheet with a fixing unit 109. The fixing unit 109 comprises a fixi...
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JP6814060B2 |
A drive circuit (50) for an electromagnetic brake (4) is used in a circuit (1) including a motor (2), a converter (10) converting a DC voltage into an AC voltage to be generated between a pair of DC link buses (38P and 38N), and an inver...
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JP6800810B2 |
To suppress an inductive voltage and a motor current during idling of a fan motor.An outdoor unit for an air conditioner includes: a compressor driven by a compressor motor 22; a fan for sending air to an outdoor heat exchanger to which ...
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JP6793597B2 |
To provide a washing machine and a washing and drying machine that are capable of bringing an inverter into a state where an output limitation is unnecessary in an early stage, when stopping a rotating DC brushless motor, even in a case ...
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JP2020532254A |
The linear actuator (1) includes a spindle nut configured to move between two end positions on a spindle driven by a DC motor (2). The end stop switch (31) is configured to activate when the spindle nut is in the end position. The end st...
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JP6778854B2 |
A motor control device of the present invention includes: a rotation controller for controlling rotation operation of a motor; a pulse width modulation (PWM) generator for generating a PWM signal; a drive circuit for outputting a drive p...
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JP6775548B2 |
To provide a highly reliable motor controller.A motor controller 1 includes: an upper arm 51 composed of a plurality of switching elements connected to a positive electrode of a DC power supply; a lower arm 52 composed of a plurality of ...
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JP6776901B2 |
To provide an electromagnetic brake control method capable of protecting a relay which turns on and off a brake current, and saving power in addition to being independent of an electrification current of a motor, and an electromagnetic b...
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JP6776878B2 |
To provide technique capable of suppressing complication of a configuration of a wear detection device for an electromagnetic brake, and increase in the cost.In a wear detection device 50 for an electromagnetic brake 30 which brakes a mo...
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JP2020174467A |
To provide a motor drive system, a motor drive method and a program, which decrease a possibility of allowing the operation amount of a servo motor to be unnecessarily long or short during a period since a stop command is input until the...
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JP2020174448A |
To provide a control device of a vehicle capable of obtaining brake force by consuming regenerative electric power by a rotary electrical machine.In the state where MG 40 for driving drive shafts 1, 2 of a vehicle 100 is regenerated, a m...
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JP6773731B2 |
A method for controlling a three-phase AC motor, wherein the three-phase AC motor has a rotatably mounted rotor and a stator including a first group of coils and a second group of coils. Each of the coils generates an oscillating magneti...
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JP6768753B2 |
To provide a motor control device that can apply a braking torque to a motor while detecting current of two or more phases even in a one-shunt current detection method.A motor control device comprises a shunt resistor 4 connected to a DC...
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JP2020162328A |
To provide a motor drive device which can prevent damage to a device due to electromotive force of a motor generated during abnormal stop of a control circuit.The control circuit generates a control signal for performing switching contro...
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JP2020162193A |
To provide an electric motor control device capable of surely braking an electric motor with which a rotation axis can be rotated by influence of external force.According to a control device for controlling an operation of an electric mo...
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JP2020528729A |
Methods, devices and computer program products for controlling induction motors are disclosed. The method includes applying an AC brake voltage to the stator in response to an instruction to reduce the rotor rotation frequency from the i...
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JP2020156272A |
To appropriately perform an active short-circuit control in accordance with the requirement with a simple structure when a driving voltage of a driving device setting an inverter as a driving object is deteriorated.A rotary electric mach...
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JP6753472B2 |
An electric tool capable of achieving inhibition of reaction due to braking in good balance with inhibition of voltage jumping due to regenerated energy is provided. A grinder (1) is provided with a motor (6), an inverter circuit (43) fo...
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JP2020137184A |
To make it possible to externally set a motor speed while accurately moving a to-be-driven object to a target position.A motor control device 1 includes: a current position detection unit 10 for detecting a current position of a to-be-dr...
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JP2020137338A |
To provide a motor system capable of making brake force act on a motor even in a situation in which regenerative control is not performed.A motor system 10 includes: a motor 20 that comprises a stator 24 and a rotor 22 and is capable of ...
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JP6746926B2 |
To prevent an increase in circuit scale while preventing malfunction of a motor while stop of the motor is indicated.The present invention comprises: a control part that, when receiving an operation request indicating rotation of a motor...
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JP6745082B2 |
To provide an abnormality detection device capable of quickly identifying an abnormality occurrence factor in a power supply device for a brake of a motor.According to an embodiment, an abnormality detection device comprises: a first wav...
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JP6728424B2 |
There is provided a method for controlling a motor in an elevator system. In this method, a time duration to a time-point at which a car stops is determined using an actual speed of the motor and a predetermined travel distance. Then, a ...
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JP6729002B2 |
To enable an electric vehicle to be smoothly stopped.A control method for an electric vehicle includes a speed control step, a disturbance torque estimation step, and a torque instruction value calculation step for calculating a torque i...
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