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Matches 1,101 - 1,150 out of 13,773

Document Document Title
JP6173516B1
[Subject] While controlling a rise of phase current when three-phase short circuit processing is performed, Even if it is a case where an inverter circuit is separated from a direct-current power supply, a rise of phase current which flo...  
JPWO2016136815A1
The electric power system in which a sudden slowdown of the electric motor at the time of an abrupt increase and rapid electric discharge of a capacitor are possible is provided. When a malfunction detection device (30) detects abnormali...  
JPWO2016104318A1
Even if an electric power supply to an inverter control device is intercepted, fail-safe control is performed suitable for a rotation electrical machinery drive provided with an inverter. Rotation electrical machinery control device 1 wh...  
JP2017131097A
To improve a turbo compressor device from the viewpoint of reducing the abrasion of a rotating shaft and a bearing of a compressor.A turbo compressor device 100 includes a turbo compressor 120 having a compressor motor 101, a lubricating...  
JP2017127139A
To provide an electric compressor capable of suppressing outflow of lubricant to the compression chamber side due to reverse rotation of a revolving shaft, coupling the turbo wing and a motor, during operation stop.A motor 3 for rotary d...  
JP2017127099A
To provide a machine learner capable of adjusting the values of resistance regeneration starting voltage and resistance regeneration stopping voltage optimum for respective motors, and to provide a motor controller, a motor control syste...  
JPWO2017006485A1
A converter circuit part (11), and the direct-current circuit unit (12) and an inverter circuit part (13), A bus voltage detector (14) and a frequency instruction generation part (16) which outputs frequency instructions (f1), A voltage ...  
JP2017123717A
To shut down regenerative electric power generated from a rotary machine from a DC link using inexpensive components.At a predetermined period after the first timing when a value of an inflow current idf running between a contactor 33 an...  
JP2017123763A
To provide a motor drive controller capable of stopping a motor quickly and reliably at a predetermined stop position with as few revolutions as possible, even from a state where the motor is rotating at a relatively low speed or the mot...  
JP6162287B1
[Subject] Brake equipment which can operate a brake promptly is obtained without producing brake operation delay at the time of electric power interception to a brake coil. [Means for Solution] In a system by which electric power from an...  
JP2017121151A
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...  
JPWO2016072003A1
In order to perform short circuit braking which uses the voltage which a magneto motor generates in a low speed in conventional technology, When number of rotations becomes low, generating voltage falls and the generating voltage of a ma...  
JP2017118817A
To enable efficient drive control of a motor only by a microcomputer driven at a low voltage.A semiconductor device comprises: a position detector that detects change in a rotational position of a rotor included in a motor, and outputs a...  
JP2017085729A5  
JP2017109361A
To provide an ink jet printer which can alleviate reduction in the printing quality while suppressing reduction in the productivity of a printed matter.A control part 5 forms an image on a printing medium by alternately repeating the ope...  
JP2017112750A
To provide a motor control device for a washing machine that is capable of reducing the stop time of a motor without requiring an additional cost of a member when braking control is performed on a motor to be driven by an inverter withou...  
JP2017517242A
The present invention relates to an electronic circuit (1, 1a*1i) for doors (5) of a motor drive of a rail car (10). This electronic circuit has a series circuit of a switch (S1, T1) in which the 1st nonlinearity element (D1) and the 1st...  
JP6150017B2
This drive device is provided with: a rotary electric machine; a matrix converter having a power conversion unit that converts power from an alternating current power supply into alternating current power for output; a battery connected ...  
JP2017100568A
To effectively use regenerative electric power of an electric motor generated when using the electric motor that is used as a power source in taxiing and running in take-off of an aircraft, as a braking source in landing.An electrically-...  
JP6144900B2  
JP2017099185A
To stop a motor as soon as possible when power supply from a power source stops.A drive control device comprises: a motor driving unit including an inverter circuit 2 connected between each phase coil of a brushless motor 20 and a DC pow...  
JP2017093228A
To provide an electric brake unit capable of consuming a large amount of braking power and capable of configuring the device to be relatively small.The electric brake unit includes: an inverter 5 having an input connected to a DC bus and...  
JP6133827B2  
JP2017085729A
To provide a technique to prevent a malfunction of a brake mechanism caused by adhesion of an adhesive substance.An apparatus 10 includes a heating unit 14 for heating a brake mechanism, a heating control unit 22 for controlling a heatin...  
JPWO2016030941A1
In electric vehicle control device 50, inverter 11, switching element 6, and brake resistance 7 which receive electric power supplied from wire 1, and drive electric motor 12 are provided, In brake chopper circuit 8 by which multiple con...  
JPWO2016157391A1
The matrix converter by which a drive has a power conversion portion from which rotation electrical machinery and the electric power from an exchange power supply are transformed into the exchange electric power for an output, It has the...  
JPWO2016051552A1
If a power converter and a safety feature part are united, part cost and development cost will be large, and a product price will become high. If it has a power converter for driving a motor, and a safety feature part which performs a sa...  
JP6121972B2
A numerical control device for controlling a motor includes a stopping unit configured to stop the motor using position control gain for emergency stop corresponding to emergency stop command, wherein emergency stop of the motor is perfo...  
JPWO2015198455A1
The converter which the positioning control device of an embodiment rectifies an exchange power supply, and it outputs between bus lines, The smoothing capacitor which smooths the output of a converter and generates bus line voltage, The...  
JPWO2015194013A1
In order that converter 11 may obtain an AC motor drive motor system which revives electric power certainly to system power supply 10, It has charge-and-discharge control part 2 which controls charge-and-discharge circuit 15 based on a d...  
JPWO2015173955A1
It aims at presuming braking resistance which avoids excess voltage by regeneration electric power under motor drive, In a semiconductor power converter (inverter device (1)) arranged between load (motor for driving (6)) which produces r...  
JP2017073922A
To make a gate pole at an ascending position descend by the pole's own weight at constant speed when abnormality such as outage and a failure occurs.A crossing gate 100 comprises: a brushless motor 30 that rotates a motor output shaft 33...  
JP2017070203A
To improve the protection of a drive control section of an AC motor.A device (1) includes an AC motor (2), a controller (5), and a power driver (6). Electric energy is supplied to the controller (5) and the power driver (6) by an operati...  
JP2017070102A
To reduce a regenerative current flowing corresponding to a stopping of a brake control and suppress increasing of a power supply voltage when a driving command is inputted during execution of the brake control and the motor driving is s...  
JP2017063557A
To prevent a high current from running through a switching element for driving and drive a motor even if the switching element for driving is switched to an ON state when a switching element for braking has a short circuit fault.The elec...  
JP2017063565A
To provide a robot system capable of avoiding generation of a free-run state of a motor while duplicating stopping means of a robot when the robot system is in an abnormal state.The robot system includes a first control unit 51 and a sec...  
JP2017061862A
To provide a brake control method that can inhibit over speed of a wind turbine in a non-contact manner with good responsiveness and obtain a constant power generation amount even under a strong wind, and to provide a small-sized wind po...  
JPWO2015132956A1
Brake resistance 23 which is an electric motor with a brake which has a function of a brake for maintenance, and possesses three resistors 1, 2, and 3, Usually, sometimes common connection of one one end each and each other end side of t...  
JP2017060402A
To provide a safe motor driving power conversion device.A resistance value measuring switch 34 is closed only when a main power switch 13 is opened, and input-side contacts 30-1 to 30-3 and a short-circuit contact 30-4 are closed state. ...  
JP2017051516A
To achieve both of circuit protection from overvoltage input during an abnormality of power supply and temporary overvoltage input due to regeneration during deceleration of a motor and a continuous operation after voltage drop in a wash...  
JP2017052609A
To make it possible to apply brake force from a regeneration brake to both support shafts by using a single electric motor and thereby to reduce cost, in a roll body support device for rotationally supporting a roll body c where a belt-l...  
JP6095336B2  
JPWO2015049746A1
In order to obtain exchange motor drive system 1 which can generate the charging current command value to the accumulation-of-electricity device corresponding to steep regeneration electric power generating according to the size of regen...  
JPWO2015037645A1
In order to be able to unite the rate of pressure change and flow rate of change of sea water to the reverse osmosis membrane at the time of starting and a stop of a high-pressure pump with the characteristic of a reverse osmosis membran...  
JP2017046576A
To disclose a switching device which supplies drive voltage UB for releasing a magnetic holding brake B of an electric motor M, and holding voltage for holding the released holding brake B, that is decreased as compared with the drive vo...  
JP2017044206A
To provide a motor compressor capable of suppressing the occurrence of a reverse re-rotation phenomenon while suppressing noise and vibration.A motor compressor 10 includes an electric motor 16 having a rotor 51, a housing 11 formed with...  
JP2015142459A5  
JP2017046492A
To solve such a problem of a motor drive device having a function for shunting the motor current, that the failure at a part where the motor current is shunted cannot be detected, even if a plurality of current detection circuits are pro...  
JPWO2014174633A1
The electromagnetic brake in which the motor with a brake brakes the main part of a motor, and the above-mentioned main part of a motor, The direct-current voltage control circuit which direct-current power supply voltage is inputted and...  
JPWO2014141527A1
It is considered as the value which added and obtained the voltage amplification rate which calculated the amplification rate of the voltage at the time of motor sudden slowdown control in the predetermined function and the low pass filt...  

Matches 1,101 - 1,150 out of 13,773