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JP6200467B2 |
A motor control system of the present invention includes a servo electricity supply unit supplying electricity to a servo motor, and a controller controlling the servo motor, a mechanical brake and the servo electricity supply unit. The ...
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JP2017163624A |
To provide in a reel type gaming machine a motor control circuit capable of stopping a reel at a target position more stably and smoothly starting reel rotation.The motor circuit includes a current controller. The current controller, upo...
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JP6193937B2 |
A motor drive apparatus according to the present invention comprises: an electric shunt which shunts a current flowing through a power line connected to a motor; a first current detection unit and a second detection unit, each disposed o...
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JP2017153222A |
To solve a problem of a conventional regenerative circuit configuration that a capacitor short-circuit failure occurs because it does not have a disconnection detection function of an overheat protection fuse for regenerative resistance,...
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JP6187823B2 |
To provide an electromagnetic suspension apparatus capable of improving safety and reliability.Relays 27, 28 are provided on 2-phase power lines 6A, 6B of 3-phase power lines 6A, 6B, 6C connecting coils 15A, 15B, 15C of a linear electrom...
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JP6176865B2 |
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JP6177445B2 |
An electric vehicle controller 50 includes an inverter 11 that drives a motor 12 by receiving power supplied from an overhead line 1, a brake chopper circuit 8 that includes a switching device 6 and a braking resistor 7 and is connected ...
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JP2017132387A |
To make a stop position of an electrically-driven drive portion of a vehicle seat, stopped on the basis of the OFF operation of an operation switch by an occupant close to a desired stop position of the occupant, in a vehicle seat contro...
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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...
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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...
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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...
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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...
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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 ...
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JP6144900B2 |
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JP6133827B2 |
An electric motor drive apparatus includes: an AC/DC converter converting AC into DC by the switching of multiple power devices; a control circuit performing PWM switching control of the multiple power devices; a current detecting circui...
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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...
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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...
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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...
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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...
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JP6095336B2 |
To provide an electric power tool that when an operation switch is turned off, can generate control torque in a motor by means of a control circuit and furthermore prevent the motor from being driven by malfunction of the control circuit...
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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...
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JP6082683B2 |
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JP6077464B2 |
A centrifuge includes a regenerative braking safety system including an electrical system reversibly coupled to a power source. A motor is coupled to the electrical system. The motor is capable of driving a rotor using power delivered th...
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JP6073147B2 |
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JP2017005953A |
To provide a drive unit that suitably controls drive of a member driven by a voice coil motor (VCM) and, at the same time, buffers collision of the driven member with another member when the VCM is not driven.A drive unit comprises a VCM...
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JP2016208655A |
To control a motor speed on the basis of a safety signal, without provision of a special speed sensor on the motor.A control unit 11 generates a control signal on the basis of a speed command signal or a safety signal, to output to a mai...
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JP6012919B1 |
A motor controlling device (58) of the present invention is provided with a pulse width primary detecting element (595), a speed control part (591), a pulse width storage section (596), the same pulse detector (597), and a stop treating ...
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JP5997953B2 |
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JP2016171638A |
To store the regenerative power of an electric motor efficiently.An electric motor controller includes a motor driver for driving an electric motor, a power supply for supplying a power to the motor driver, a plurality of power storage d...
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JP5996095B2 |
An electric vehicle control device includes a calculation unit that calculates a regenerative-brake-torque load factor when a braking command is detected. The calculation unit includes a brake-torque load-factor determination unit that d...
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JP2016167901A |
To appropriately brake a motor.A control device for a synchronous machine comprises: a power conversion circuit (40) that modulates a DC voltage (Ed) outputted from a DC power supply (3, 4) and supplies the modulated DC voltage to a sync...
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JP5990884B2 |
A motor control device comprises: a motor control unit; and a signal output unit, wherein the motor control unit controls a motor based on an output signal of the signal output unit, wherein the motor control unit is configured to functi...
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JP2016163456A |
To prevent a compressor from failing to start due the fact that a rotor cannot start to rotate against load torque.When receiving stop command for an electric compressor 1 performing sensorless operation, speed command for the electric c...
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JP5980047B2 |
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JP5980969B2 |
A motor drive according to the present invention has a dynamic braking circuit. The motor drive includes a motor drive control circuit for applying a voltage to windings of a synchronous motor and the dynamic braking circuit for a predet...
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JP5973439B2 |
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JP5967072B2 |
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JP5955414B2 |
Provided is a motor control device that includes an inverter circuit that includes a plurality of P-side switching elements and a plurality of N-side switching elements and drives a motor via a plurality of motor terminals; a first dynam...
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JP2016127788A |
To provide a control system of a regeneration brake of an electric automobile having an excellent control effect, and a method of the same.A regeneration brake control system 100 of an electric automobile comprises an armature current co...
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JP5938583B2 |
This motor control device has a dynamic brake function of absorbing the energy of a motor to apply a brake to the motor. The motor control device comprises: a dynamic brake resistor; a thermal switch which is arranged adjacent to the dyn...
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JP5932944B2 |
An object of the present invention is to improve the performance of a power transducer while efficiently using the power semiconductor also by managing the permissible duty factor of the power semiconductor in the regenerative braking ci...
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JP5932136B2 |
The voltage amplification factor during rapid deceleration control of a motor is set to a value obtained by adding a first voltage amplification factor calculated with reference to the voltage of the DC circuit section of the inverter us...
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JP5931407B2 |
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JP5927838B2 |
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JP3204317U |
To provide an electric motor capable of returning a thermal protector at a place away from the electric motor. A relay 26 turns on a thermal protector 24 and a switch circuit 26a between the thermal protector and the electric motor 28 by...
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JP5923822B2 |
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JP5925066B2 |
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JP5921890B2 |
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JP5923325B2 |
To provide a motor control device which can apply an electric brake to a motor when power supply is stopped, and achieve a miniaturization and a cost reduction. A first switch 11 through a sixth switch 16 connects respective coils L1, L2...
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JP5911639B2 |
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