| Document |
Document Title |
|
JP5834453B2 |
|
|
JP5835923B2 |
|
|
JP2015231242A |
To provide a DC motor capable of accurately controlling a rotational position of a rotor in a simple configuration even in the case where the rotor can be smoothly rotated at high speed.In a DC motor 1, a first table and a second table i...
|
|
JP5828678B2 |
|
|
JP5814767B2 |
|
|
JP2015204695A |
To provide a motor drive device capable of improving accuracy or reliability of speed control or position control during feedback control without complicating a process for mass-production and without reducing production efficiency.A mot...
|
|
JP2015202014A |
To improve the accuracy of constant-current control of a driving current of a stepping motor.Regenerative control means detects a value of an electric current running through a motor coil and when the current value exceeds a regenerative...
|
|
JP5808943B2 |
|
|
JP5808780B2 |
|
|
JP5806915B2 |
|
|
JP2015195669A |
To provide a motor control apparatus capable of securely detecting vibrations of a stepping motor without using a special externally attached member.The motor control apparatus includes: a motor control part 10 for controlling rotation o...
|
|
JP2015194603A |
To accurately suppress a rotation variation component of a rotating body that rotates to form images.An image forming apparatus 1000 calculates a speed correction amount in which the gain and phase of a speed variation component is corre...
|
|
JP5803390B2 |
Optical equipment capable of stopping a lens in a position producing no image blur and requiring low power consumption is provided. The optical equipment includes a lens driving unit for driving a focusing lens. The equipment further inc...
|
|
JP2015192538A |
To provide a stepping motor drive device capable of grasping positions of magnetic poles with high accuracy even in the case where load torque is generated in a stepping motor during rotation stop.The stepping motor drive device includes...
|
|
JP5799261B2 |
When a direction command signal indicates a first direction, a signal for causing the other end of the induction load to be connected to a second power supply unit is output as a second control signal. In addition, after a passage of a f...
|
|
JP5797044B2 |
|
|
JP2015174161A |
To provide a cut device which can be driven by the possible lowest power.A cut device has a fixed blade, a moving blade, and a drive motor for driving the moving blade, and moves the moving blade close to the fixed blade by the driving o...
|
|
JP5785718B2 |
|
|
JP5786283B2 |
|
|
JP2015171238A |
To suppress an increase in burden on a CPU and power consumption, while rapidly detecting step-out of a stepping motor.A stepping motor control device includes comparison means (115) for comparing a detection signal from rotation detecti...
|
|
JP2015169638A |
To provide an oscillating step motor of a rotation detection type high in reliability capable of dealing with various behaviors occurred such as collision of a rotor against a tooth tip of a star wheel so as to cause the stop of the roto...
|
|
JP2015165443A |
To reduce power consumption by properly controlling an excitation current.Disclosed is an optical disk device 1 which includes a pickup 7 for irradiating an optical disk with a ray of light and a stepping motor 20 for moving the pickup a...
|
|
JP2015162945A |
To achieve quick, high-quality and highly accurate motor deceleration/stop control.A control method of a motor including a rotor having a magnet, a yoke including a magnetic pole opposed to the magnet, a coil for exciting the magnetic po...
|
|
JP5770701B2 |
|
|
JP2015154697A |
To provide a pulse motor in which output torque difference between normal rotation and reverse rotation is small so that it can surely conduct reverse rotation even when a rotor does not reversely rotate due to a shock or variation of lo...
|
|
JP2015152513A |
To provide a drive control mechanism of a step motor for an electronic watch capable of accurately performing rotation detection of a rotor and reducing power consumption.One speed reduction wheel is newly provided with a speed increase ...
|
|
JP2015146671A |
To feed a sheet stably and appropriately by exciting the phase at a plurality of positions sequentially, when determining the phase of a stepping motor for carrying sheet, and reducing the displacement angle of a rotor corresponding to t...
|
|
JP2015144506A |
To provide a circuit device and electronic equipment that can suppress detection variation of chopping current.A circuit device 200 has a bridge circuit 210 comprising high-side transistors Q1, Q2 and low-side transistors Q3, Q4, a contr...
|
|
JP2015142441A |
To highly accurately detect a step-out state of a stepping motor in accordance with a simplified control method.A motor control device 10 includes: a CPU 122 applying a pulse voltage of which the pulse width is modulated, to each of coil...
|
|
JP5751391B2 |
|
|
JP2015130749A |
To cause an imaging apparatus to perform a process necessary for coping with the step-out of a stepping motor while avoiding unnecessary processes of the imaging apparatus.An interchangeable lens 2 is detachably attached to an imaging ap...
|
|
JP2015130753A |
To reduce zero-crossing distortion of a current of duty ratio-current characteristics by an actuator drive device.A coil La101 and a coil Lb102 of a two-phase stepping motor 100 are connected to terminals A, B, and S (common terminals) r...
|
|
JP5747831B2 |
A motor control device to execute speed control and position control of motor simultaneously, includes a target position information provider, a target speed information provider, a detected position information detector, a processor to ...
|
|
JP5749810B2 |
A linear reciprocating device and a location controlling method utilizing the device are provided. The linear reciprocating device comprises a machine base, a linear guide (2) fixedly mounted on the machine base, a linear reciprocating l...
|
|
JP5740726B2 |
A method of driving a stepper motor in feed-forward voltage mode, comprises the step of setting, for a desired speed to be impressed to the stepper motor, the amplitude of a sinusoidal phase voltage of the stepper motor equal to the sum ...
|
|
JP5727532B2 |
|
|
JP5725766B2 |
The motor driving apparatus includes a motor driving a driven member, and a controller performing, from a start of driving of the motor, acceleration drive of the motor on the basis of a predetermined acceleration pattern with open-loop ...
|
|
JP5716072B2 |
|
|
JP5714924B2 |
A semiconductor device includes a reference voltage generation circuit to which a power source voltage is applied; an output terminal for outputting an output voltage; a determining circuit connected to the reference voltage generation c...
|
|
JP2015082919A |
To suppress occurrence of problems resulting from stopping in one phase excitation state, when performing half step driving of a stepping motor for accessory drive.In a game machine, the CPU of a lamp control substrate performs stop exci...
|
|
JP5704810B2 |
|
|
JP5701503B2 |
When a driver unit is in a high impedance state as viewed from a first coil or a second coil, an induced voltage detector detects the voltage across the first coil or that across the second coil so as to detect an induced voltage occurri...
|
|
JP5697320B2 |
|
|
JP2015061467A |
To provide a stepping motor having a plurality of coils, and a clock having the same stepping motor, capable of saving power with a reduced loss of energy required for rotating a rotor, when the rotor is rotated with a predetermined step...
|
|
JP2015047010A |
To reduce user's uncomfortable feeling by shortening a moving distance of a display image when receiving a stop instruction of a stepping motor.A display apparatus 1 allows a user to view an image displayed by a display 10 on a predeterm...
|
|
JP5679077B2 |
|
|
JP5676203B2 |
The invention enables accurate detection of the state of rotation even when the timing of generation of a induced signal is changed due to the relative change of a drive energy with respect to a load. A plurality of types of detection se...
|
|
JP2015035926A |
To provide a device for controlling a stepping motor capable of suppressing magnitude of sound generated in accordance with driving of a motor.A device for controlling a stepping motor makes excitation current flow through a plurality of...
|
|
JP5671315B2 |
To reduce the power consumption of a stepping motor used in a sewing machine.A stepping motor control device 1 for sewing machines includes a deviation generator 40, a driving signal generator 41, and a gain adjusting part 43. The deviat...
|
|
JP2015033191A |
To provide a motor controller which allows for acceleration up to high speed in feedback control mode, while preventing malfunction.A motor controller includes a motor having a rotor, and a plurality of position detecting sections for de...
|
