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Patent Searching and Data


Matches 801 - 850 out of 9,117

Document Document Title
JP6652657B2
An air conditioner (5) includes a signal receiving unit (56) to receive an operation instruction signal, a rotary compressor (8) including a motor (1) including coils (3), an inverter (103) connected to the coils (3), a connection switch...  
JP2019221078A
To adjust start performance of a motor suitable for each process of a washing machine in a state where the motor is incorporated into the washing machine.A motor driving device comprises: a parameter command portion 104 commanding a freq...  
JP6578260B2
In order to stably operate a car in the absence of magnetic pole position signals from a magnetic pole position sensor, this elevator system comprises: a synchronous motor which drives the car; a brake; and a drive control device for the...  
JP2019140798A
To provide a motor control device which can perform startup and rotation driving of a rotation output portion without using a large-sized motor.This device has a rotation output portion 26 rotationally driven by a startup motor 24 and a ...  
JP6556183B2
A method is described for controlling an electric motor having a rotor. The method is carried out after a shutdown of the motor has been initiated. The method includes starting a timer in a motor controller, performing regenerative braki...  
JP6544283B2
To suppress an overcurrent.A forklift truck comprises a control device for a DC motor for driving a cargo handling motor. The control device for a DC motor comprises: a half bridge circuit that has a first switching element and a second ...  
JP6506003B2  
JP2018183023A
To provide an apparatus in which a starting current of a general-purpose electric motor of 5 Kw-15 Kw is reduced.A current of more than 6 times the normal current flows as a starting current of a general-purpose electric motor. For this ...  
JP2018174681A
To resolve a problem that an energy saving property and quietness may be deteriorated when a voltage applied for rotating a fan that is in a stop state is kept high at all times.A low voltage is applied for rotating a fan that is in a st...  
JP6419670B2  
JP6413756B2
An increase in startup current supplied to a motor is suppressed at an initial stage of starting automatic braking control, while current supply to the motor is performed in a fully energized state after the automatic braking control is ...  
JP6414771B2  
JP6410957B2  
JP6405987B2  
JP6399595B2
Abstract: A fan motor system (1) is provided with: a fan motor unit (10) comprising a motor (101) and a controller (100) which controls the rotational speed of the motor (101) in accordance with an input command value; a command value ou...  
JP6382160B2  
JP2018133868A
To realize a single phase induction motor with a large starting torque and small size.The single phase induction motor includes: a plurality of main windings wound around a stator; an auxiliary winding wound around the stator at a predet...  
JP6365315B2  
JP2018107906A
To provide an electric motor controlling device capable of reducing an activation time of an electric motor before starting estimation of a position of a movable element.A control device 60 of an electric motor controlling device compris...  
JP6345289B2
The present invention relates to a system for controlling rotational speed on a rotating process machine, which for example is a turbine or a propeller, where the rotating process machine is connected to at least one motor and arranged t...  
JP6317904B2  
JP6299538B2  
JP6296566B2  
JP6288368B2
A synchronization control unit 3 operates a power converter INV by means of V/f control, with a first on/off switch S1 being "off" and a second on/off switch S2 being "on". A utility synchronization current control unit 4 operates the po...  
JP6276232B2
An apparatus for restarting a medium voltage inverter is disclosed, wherein the medium voltage inverter can be restarted by estimating a rotor speed when an input power returns from an instantaneous defective state to a normal state, whe...  
JP2018019598A
To provide a vehicle control device that can improve start performance of a vehicle mounted with a switched reluctance motor.A vehicle control device includes: a switched reluctance motor having a rotor and a stator and mounted to a vehi...  
JP2018019519A
To suppress a starting current of an induction motor.An induction motor system comprises: a rotor having a rotor shaft and a rotor core; two bearings; a stator having a stator core, a first stator winding 71 passing through in a pluralit...  
JP6271344B2
A control method for a vibration generator is provided. The vibration generator includes a fixed part around which a coil is wound, a movable part having a magnet, a bridge part movably supporting the movable part, and a power supply uni...  
JP6265345B2
A speed sensorless motor starting apparatus (100) for starting a motor includes a modular multilevel cascade inverter (1) of a double star chopper cell, a current command value creation unit (31) configured to create a current command va...  
JP6258909B2  
JP2017229141A
To provide a speed control board that while using a power control board configured to perform drive/stop control on a star-delta switchable three-phase induction motor, enables speed control on the three-phase induction motor.A speed con...  
JP2017212794A
To accelerate a motor of an electric compressor motor after start-up without a loss of synchronism by increasing a command speed in synchronous control.A command speed that is set by a motor control part 15b is temporarily linearly incre...  
JP3212779U
[Subject] An electronic device and a circuit which were constituted so that setup time of an associated component of operation might be synchronized are provided. [Means for Solution] A circuit includes 1st component 2 of operation, 2nd ...  
JP6183521B2  
JP6181450B2
A reciprocating electric power tool in one aspect of the present invention includes an attachment unit, a motor, a power transmission unit, and a controller. The controller is configured to operate the motor at a first speed when activat...  
JP2017127098A
To provide a starter of an induction load device capable of starting the induction load device smoothly, by preventing vibration and noise when starting the induction load device such as a motor.A starter 10 includes an ignition angle co...  
JP3211138U
[Subject] Whenever a motor starts, a rotation child of a motor provides a motor drive circuit which it came to rotate in the same direction. [Means for Solution] A motor drive circuit and a motor component are provided. Bidirectional exc...  
JP6121602B1
[Subject] A rise in heat of three phase induction motors under decanter starting is made smaller than a base starting method. [Means for Solution] It is a starting method of three phase induction motors which carry out acceleration rotat...  
JP6104225B2
To provide a controller for a rotary electric machine which performs control to output torque in a positive direction even when a rotating speed input from a pulley to the rotary electric machine is of reversing when a restart command fo...  
JP2017058368A
To improve a magnetic sensor and an IC packaged with the magnetic sensor in terms of ease of use and detection accuracy.The present disclosure relates to an integrated circuit including input ports (1102, 1104), an output port (1106), an...  
JP2017060382A
To provide a motor driving circuit that allows a rotor of a motor to rotate in the same direction every time the motor is started.A motor driving circuit and a motor component are provided. The motor driving circuit includes: a bidirecti...  
JP2017507631A
An improved way to start a switch reluctance motor uses two pairs of adjacent coils that are both energized to bring the rotor to its initial position. Then, when one coil pair is turned off, the rotor is attracted to the other coil pair...  
JP2017055647A
To provide a method for restarting an induction machine so as to immediately resume an operation of the induction machine without stopping.A method for restarting an induction machine comprises: a position and speed estimating step for e...  
JPWO2015037645A1
In a seawater desalination system using a reverse osmosis separator, the rate of change in seawater pressure and the rate of change in flow rate to the reverse osmosis membrane when the high-pressure pump is started and stopped can be ad...  
JP6071032B2  
JP6060068B2  
JP2016208751A
To solve the problem that a structure of a single-phase motor is relatively simple but it is required to devise a startup method in a predetermined rotation direction from a stopped state and a single-phase motor control system is desire...  
JP6030978B2  
JP6006677B2  
JP5971352B2
A control apparatus for a vehicle motor is provided with: a characteristic switching device configured to switch a characteristic of a motor between a first characteristic in which the output upper limit is first predetermined torque and...  

Matches 801 - 850 out of 9,117