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JP2010057144A |
To prevent power from being turned off while an incorrect value has been written in a printer having a read section.The printer includes: the read section driven by a stepping motor to scan a read range; a print section for printing, bas...
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JP2010057272A |
To perform optimum control on a drive device of a stepping motor, which drives the stepping motor, a lens barrel and an electronic camera in accordance with a temperature of a part to be driven.The drive device of the stepping motor incl...
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JP2010054437A |
To carry out a rotation detection more precisely by suppressing influence of motor braking generated at rotation detection.When detecting rotation detection of the stepping motor within a rotation detection period of a first interval T1 ...
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JP2010054351A |
To provide a stepping motor control circuit for preventing the occurrence of wasteful drive energy, and to provide an analog electronic timepiece which has small power consumption.When the stepping motor is driven to rotate by main drive...
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JP2010057282A |
To provide a drive method and a drive system of a step motor, which obtain precise delivery precision even if exciting current is turned off after driving.In the drive method in the device where a driven element is driven in terms of mic...
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JP2010051070A |
To provide a control method of a single-phase stepping motor which can surely and easily start the stepping motor, and can quickly accelerate it from the start to constant speed, and a control device.The control method moves the single-p...
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JP2010051058A |
To provide a drive device capable of stably operating a plurality of actuators: and to provide an optical device.The drive device includes actuators 6, 8 formed by attaching drive shafts 6b, 8b to piezoelectric elements 6a, 8a respective...
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JP2010051149A |
To attain stable rotation control by preventing step-out of a motor even when a motor speed instruction signal is an unexpected setting value due to malfunction or the like in a control source.A storage part 1 sequentially stores the spe...
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JP2010051164A |
To attain optimality in consumption current and rotational stability of correction drive by carrying out drive according to a rotational load at the irrotational time.A stepping motor control circuit 101 is equipped with a control circui...
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JP4423339B2 |
A stepper motor control device includes a sensor (5) that detects physical quantities and a control device that operates a stepper motor (3) based on data corresponding to the physical quantities sent from the sensor (5) in which the sai...
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JP4426881B2 |
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JP2010044315A |
To provide a driving device capable of efficiently driving a movable part.In step S307, a determination is made whether the angular velocity of a digital camera is lower than a first oscillation value or not. If it is lower than the firs...
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JP2010043970A |
To save electric power by a simple constitution on the occasion of driving a plurality of stepping motors.A motor selecting means 107 selects the stepping motor M1 or M2 to be driven to rotate and a waveform shaping means 103 and a motor...
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JP4420079B2 |
A pulse motor control device includes a drive pulse generator configured to generate a drive pulse in accordance with a set cycle, a pulse motor driver configured to generate an excitation current of a pattern corresponding to the number...
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JP4422875B2 |
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JP4422292B2 |
The method consists in subdividing each driving pulse into a certain number of elementary periods of the same duration, in calculating directly or indirectly, at each elementary period, the value of an effective chopping rate He such tha...
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JP4416541B2 |
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JP4412359B2 |
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JP4412680B2 |
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JP2010028890A |
To provide a method of driving a step motor, which enables a drive with lower power consumption than thse of conventional rotation correcting systems.In the single-phase step motor, which is equipped with a motor mechanism and a rotor co...
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JP2010028976A |
To surely detect rotation and non-rotation of a motor even if the generation timing of an induction signal generated in the motor and its generation cycle are deviated, caused by the fluctuation in power supply voltage and ambient temper...
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JP4410364B2 |
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JP2010022137A |
To use one circuit in a plurality of modes in a driving signal output circuit outputting a driving signal to a load such as a motor.Input signals from signal input terminals 10 and 12 are input to a logic circuit 22, and a control signal...
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JP4404442B2 |
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JP4404102B2 |
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JP4404087B2 |
A variable frequency clock output circuit, comprising: a target value register which stores a target value corresponding to an arbitrarily set target frequency; an increase/decrease value register which stores an arbitrarily set increase...
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JP4399783B2 |
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JP4402469B2 |
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JP2010011713A |
To provide a pulse output circuit capable of changing a period of output pulse waveform without allowing for timing of the reload operation when the period of output pulse waveform is changed.The pulse output circuit includes: a timing s...
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JP2010011624A |
To provide a refrigeration cycle equipped with a stepping motor which is driven by such a method as driving a plurality of stepping motors simultaneously.The refrigeration cycle 10 includes two stepping motors 12A and 12B which drive two...
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JP4393842B2 |
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JP4394086B2 |
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JP4389905B2 |
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JP4387742B2 |
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JP2009303450A |
To provide a drive control method for a stepping motor, capable of reducing the vibrations generated during the activation or deactivation of the stepping motor, and capable of preventing a motor torque from becoming decreased by a large...
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JP4391646B2 |
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JP4387750B2 |
A method of correcting a pointing position of a pointer rotated by a stepper motor includes the steps of: performing a prereset operation in which the pointer is rotated to a reset operation starting position that represents a pointing p...
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JP4387728B2 |
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JP4390521B2 |
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JP4385684B2 |
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JP4385066B2 |
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JP2009289344A |
To provide a driving control device can avert the step-out of stepping motor during spherical aberration correction at a low cost with a small size, a drive control method, and to provide an optical pickup system.A control section 22 dri...
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JP4379221B2 |
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JP4378256B2 |
To provide a stepping motor control device which can reduce fluctuations in acceleration generated at the time of acceleration/deceleration of a rotationally driven inertial load to reduce vibration due to the fluctuations in acceleratio...
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JP4374780B2 |
A space S for housing an optical sensor 15 is formed between a detection gear 11 of a drive transfer gear and a frame 2 for supporting the detection gear. A detected part 11c shaped like comb teeth is formed integrally on inner walls of ...
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JP4378177B2 |
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JP4371257B2 |
An image forming apparatus includes at least one first image carrier (3C, 3M, 3Y) that carries a chromatic color toner image formed thereon, a second image carrier (3BK) that carries a black toner image formed thereon, at least one first...
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JP2009273334A |
To generate only a required torque not causing vibration and reduce power consumption and heat generation although the vibration is generated by an excess torque since a drive current of a stepping motor is configured so as to generate a...
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JP4362488B2 |
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JP2009253999A |
To improve its scan performance by enabling the motor drive nearest to the limit of heat resistance and minimizing the down time of a transfer motor.A motor driver has: a drive motor 35, which is driven with current values that are diffe...
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