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JP6292087B2 |
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JP6292784B2 |
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JP6287997B2 |
A motor drive device includes a driver unit configured to be connected to a stepping motor, and a controller connected to the driver unit. The controller causes the driver unit to output a drive pulse to the stepping motor for causing th...
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JP6287950B2 |
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JP2018033255A |
To provide an image processing apparatus capable of shortening an attenuation vibration time of a rotor in phase matching control without requiring a circuit nor software for controlling a drive current of a stepping motor.At predetermin...
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JP6281241B2 |
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JP6278622B2 |
A motor control apparatus applying a sinusoidal drive waveform to a motor and including a position detection unit outputting a signal according to a motor shaft's position; and a control unit: acquiring a phase value of the motor's drive...
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JP6278629B2 |
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JP2018019510A |
To solve the problem in which, in a constant current control, an extra driving current is supplied to windings of a motor in consideration of fluctuation of load torque applied to a rotor, which results in power consumption increase and ...
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JP6272798B2 |
A controller of a motor controller operates to perform a process including: controlling the H bridge circuit to switch to the charge mode; controlling the H bridge circuit to switch to the high-dissipation mode when the zero-cross detect...
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JP6271925B2 |
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JP6270530B2 |
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JP6271903B2 |
In a servo apparatus which comprises a motor, a shaft angle detecting unit and a controlling unit, and performs standard control of an angle position by a torque controlling method, it enables to perform driving control corresponding to ...
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JP6272797B2 |
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JP6265601B2 |
To provide a head-up display device which can suppress occurrence of vibration with movement of a combiner.A microcomputer 100 controls driving of a stepping motor 62 with micro step driving in which an electric angle of an excitation si...
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JP6258004B2 |
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JP6257709B2 |
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JP2017229196A |
To make it possible to accurately estimate the angle of a rotor.An angle estimation device according to one embodiment comprises: a correction part that corrects, by a predetermined amount of correction, the phase of an error parameter t...
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JP2017229142A |
To provide a stepping motor driving device capable of efficiently suppressing an occurrence of cogging.A stepping motor driving device driving a stepping motor comprises: generating means generating a current value waveform for rotating ...
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JP6249226B2 |
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JP2017219766A |
To provide a lens control device and lens control method that can improve stoppage accuracy of driving in implementing drive control of a stepping motor.A lens drive method of a lens drive device, which has a stepping motor moving a lens...
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JP6243505B2 |
The present invention relates to an electronic device for a motor, the motor is used for driving a display device, the electronic device comprises a computing unit capable of generating a signal for representing a practical intensity, th...
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JP2017212828A |
To accurately detect the generation of a large offensive sound during the rotation of a stepping motor.A motor control device includes: a stepping motor; a chopping signal generation part that generates a chopping reference signal; a fre...
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JP2017207384A |
To provide an electronic clock having display means of a low power consumption for displaying a state and information of the clock by multicolor expressions by an indicating needle.An electronics clock is constituted of: a rotor 21 polar...
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JP2017208930A |
To solve the problem in which: by using a low pass filter, a phase of a current value of the drive current used for position estimation is delayed compared with a phase of a current value of an actual drive current, causing an error in a...
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JP6234210B2 |
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JP2017204955A |
To provide a pulse output logic circuit which allows for continuous driving of a motor in time and velocity between unit operation patterns, when performing drive control of a motor by combining multiple unit operation patterns.A pulse o...
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JP6229815B2 |
Provided is a device for controlling a stepping motor, with which it is possible to reduce noise produced at the beginning of pulse output while minimizing any increase in cost and any decrease in the torque of the stepping motor. This d...
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JP2017198181A |
To provide an air blower capable of specifying the current direction of an air blowing part by using less sensors and minimum turn of the air blowing part.A fan 1 as the air blower includes a base part 2, an air blowing part 3 which is p...
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JP6224867B2 |
An electronic device including: a calculation unit configured to generate a signal representative of a physical magnitude, for a motor driving a display device, the motor including two terminals, one positive and one negative, via which ...
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JP6211294B2 |
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JP6212145B2 |
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JP2017184490A |
To provide a technique for reducing distortion occurring in the detection results of a drive current flowing through the motor winding, in a motor drive unit including a drive circuit for supplying a drive current to the motor according ...
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JP2017184489A |
To provide a technique for reducing detection error of a drive current caused by the pulse width of a PWM signal supplied to an H bridge circuit, in a motor drive unit for detecting the drive current of a motor by using a current detecti...
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JP6207223B2 |
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JP6205220B2 |
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JP6205219B2 |
In an indicating-needle type meter device, when starting excitation of a stepping motor, a controller sets the phase of an excitation signal to a predetermined excitation start position and returns the phase of the excitation signal by a...
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JP6204386B2 |
A motor current controller operates to: set a reference current value and a decay mode switching time for each PWM cycle based on a positional relationship between a rotor and a stator; switch an H-bridge circuit to the charge mode at th...
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JP6204385B2 |
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JP6202996B2 |
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JP2017163725A |
To provide a motor drive device ensuring high accuracy in the turning angle of an output member, and high resolution in the stop position of the output member.A motor device 100 has a stepping motor 1a, a speed reduction mechanism 3, and...
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JP2017161662A |
To solve the problem in which conventionally, an area of a part where an aperture blade overlaps becomes broad, friction force of the aperture blade becomes larger, and an aperture drive voltage is set so as to meet a small aperture side...
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JP2017163799A |
To provide a stepping motor controller capable of suppressing vibration and noise generated from a stepping motor when it is stopped.A stepping motor controller 10 includes a control signal generation unit 11 generating a pulsed control ...
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JP2017163766A |
To provide a stepping motor driving device capable of accurately detecting whether or not it has rotated to a predetermined position, and to provide a stepping motor driving method, a stepping motor driving program, and an electronic wat...
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JP2017158227A |
To provide a motor device capable of properly driving a driven member even if an origin position of the driven member that is set by a mechanical-type origin setting mechanism is displaced.A motor device 100 comprises: a motor 1; an outp...
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JP6188604B2 |
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JP6189283B2 |
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JP6184134B2 |
A motor drive apparatus includes a drive unit to supply motor coils with sinusoidal drive signals, a signal output unit outputs signals that change with rotation of a rotor, and a control unit. The control unit acquires first information...
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JP6184221B2 |
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JP6184726B2 |
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