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Matches 751 - 800 out of 13,747

Document Document Title
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...  
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...  
JP2021006000A
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 ...  
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...  
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 ...  
JPWO2019187059A1
In a motor drive device equipped with an inverter (4) that can be connected to n motors (41, 42) each having a permanent magnet in the rotor (n is an integer of 2 or more), i of the above n motors (i brakes any of the motors from 1 to (n...  
JP2020195262A
To provide a control arrangement of revolving shaft for shortening the time required for decelerating the revolving shaft to a prescribed speed at a prescribed position.A control arrangement of revolving shaft includes a total travel com...  
JP2020195209A
To provide a motor control device which realizes space-saving.A motor control device has a motor driving part 3 drive-controlling a motor 11, a discharge control part 36 performing a control of making a regenerative electric power discha...  
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 ...  
JP2020534776A
Systems and methods are provided to brake the translators of linear polyphase electromagnetic machines. The system detects a failure event and uses electromagnetic techniques to brake the translator in response to the step of detecting t...  
JP2020188589A
To provide a motor controller that can improve the accuracy of position in stopping the rotation of a rotating body driven by a motor.A motor controller comprises: a deviation calculation unit 15 that calculates, as a deviation amount, t...  
JP2020184872A
To provide a braking method for a sensorless permanent magnet synchronous motor that can quickly stop after a motor or a pump is switched off.For braking in the case of an open control circuit, a permanent magnet synchronous motor is con...  
JP2020182537A
To provide a motor control device capable of diversifying the stopping motion of a control target motor when the motor is stopped.The motor control device includes: a communication unit 10 that receives a stop control signal from a host ...  
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...  
JP2020181058A
To provide a motor control technique that allows a smaller motor to be used while ensuring necessary output.A motor control device for controlling a motor includes: a drive circuit of the motor that includes a semiconductor device and is...  
JP2020182353A
To provide a work device that can appropriately process (consume) regenerative power generated in an electric motor even when the actual required power (actual load) of the electric motor fluctuates drastically.A work device that is conn...  
JP2020178651A
To provide a work device capable of appropriately processing (consuming) regenerative power generated in an electric motor even when a variation in actual required power (actual load) of the electric motor is large.A work device connecte...  
JP2020178650A
To provide a work device capable of appropriately processing (consuming) regenerative power generated in an electric motor even when a variation in actual required power (actual load) of the electric motor is large.A work device connecte...  
JP2020182291A
To suppress a stop sound of a brushless motor.A controller 10 of a brushless motor turns on or off a plurality of switching elements 20 to energize stator coils 7 with a plurality of phases in a complementary energization system. A contr...  
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...  
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 ...  
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...  
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...  
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...  
JP2020174500A
To provide a protection device capable of appropriately selecting a resistance value of a resistor used in a dynamic braking circuit while protecting a synchronous motor and a motor drive device.A protection device 10b provided between a...  
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...  
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...  
JPWO2019069363A1
The electric motor control device according to the present invention is an electric motor control device that drives and controls electric motors in which a plurality of electric motors are connected in parallel to each other, and is a p...  
JP2020171186A
To provide a discharge device and the like that are excellent in distributing the load of a regenerative operation.A drive unit 10 includes a power supply line L1 that supplies power to a motor 30, receives regenerative power from the mo...  
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...  
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...  
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...  
JP2020528729A
A method, a device, and computer program products which control an induction motor are indicated. This method answers directions of reducing rotation frequency of a rotor to low clock frequency from initial clock frequency, and exchange ...  
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...  
JP2020150730A
To provide a passenger conveyor in which stop of footsteps can be stably controlled in the event of blackout.A DC power supply device 200 of an escalator 1 includes: a full-wave rectifier 210 which performs the full-wave rectification on...  
JP2020142883A
To provide a passenger conveyor capable of stopping steps gently at an appropriate distance when a power failure or a failure of an inverter occurs during driving of the steps.An escalator includes endlessly-connected steps, a motor for ...  
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...  
JPWO2020044458A1
The ship propulsion electric motor drive device of the embodiment includes a power conversion unit and a control unit. The control unit operates the induction motor by controlling the power conversion unit based on the first reference ph...  
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...  
JP2020137142A
To enable a simplified and low-cost connection wiring structure.A motor control system 1 includes: a motor 2C; and a motor control device 13C which controls to supply the drive power for the motor 2C based on the drive state amount of th...  
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 ...  
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...  
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...  
JP2020120547A
To provide a shift range controller capable of stopping a motor accurately.A shift range controller 40 switches shift range by controlling drive of a motor 10 having a motor winding 11. An angle calculation part 51 calculates an encoder ...  
JP2020118270A
To provide a shift range control device capable of appropriately stopping a motor at a target position.A drive control part drives a motor in such a manner that an encoder count value θen becomes a target count value θcmd corresponding...  
JPWO2019026503A1
(EN) Provided is an electric tool capable of performing braking while suppressing deterioration and damage of elements. In the brake control, the calculation unit 21 performs switching control while sequentially switching the combination...  
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 ...  
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...  
JP6725762B1
The motor driving device for vessel promotion of an embodiment has an electric-energy-conversion unit and a control part. A control part works the above-mentioned induction motor by controlling the above-mentioned electric-energy-convers...  
JP6724839B2
To provide a linear drive device having superior stop position accuracy.A linear drive device comprises: a mover 1 comprising a driving permanent magnet 3; and a stator 2 comprising a plurality of coils 11 arranged along a moving directi...  

Matches 751 - 800 out of 13,747