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Matches 451 - 500 out of 11,353

Document Document Title
JP2018173419A
To provide an electronic timepiece capable of being driven with low current consumption.An electronic timepiece comprises: a step motor 8 including a coil and a rotor; a motor driver 7 which drives the step motor 8; a normal drive pulse ...  
JP2018169410A
To achieve the fastest rapid traverse operation of a step motor.A device comprises: a normal pulse generation circuit; a detection pulse generation circuit which outputs a detection pulse for detecting whether a step motor rotated; a pul...  
JP2018166387A
To provide a motor control device which can more reliably perform a start-up even when predetermined drive power is supplied.A motor control device driving a stepping motor detects that the stepping motor is in a step-out state, after a ...  
JP6408980B2  
JP6401624B2  
JP2018155845A
To provide a shutter device capable of driving with high accuracy.A shutter device includes: a motor for driving in a full step drive mode and in a micro step drive mode; a cam gear including a cam part; a driving member including a cam ...  
JP2018157731A
To make it possible to reduce the occurrence of various troubles associated with an increase in the number of input pulses in a holding operation before through-up of a stepping motor.A driver circuit driving a stepping motor comprises: ...  
JP6399591B2  
JP2018153060A
To provide a motor control apparatus which can accurately estimate an angle of a rotor even when a motor control method is changed.A motor control apparatus includes: control switching means 70 which selectively switches a control method...  
JP2018149605A
To materialize optimization of a joint torque of a robotic apparatus by simple work.The robotic apparatus comprises a multi-joint arm mechanism having a plurality of joint parts J1 to J6. A motor driver 210 generates a pulse signal for a...  
JP6395469B2  
JP2018146396A
To provide an electronic clock that can easily output a detection signal when a rotor rotates and that can prevent erroneous detection, even when a pointer having a large moment of inertia is used.An electronic clock comprises a stepping...  
JP2018146529A
To appropriately select a pulse that is suitable for current conditions from among a plurality of kinds of pulses to be applied to a stepping motor in an electronic clock.A drive device of an electronic clock 1 includes: a load; a drive ...  
JP2018148749A
To provide a motor drive control device capable of taking measures against vibration or noise of a motor.The motor drive control device for driving a stepping motor in a micro step controls the number of PWM (Pulse Width Modulation) peri...  
JP2018143078A
To solve the problems of instable control of a motor, increased electric power consumption, and/or increased motor sound when switching between constant current control and vector control on the basis of a preset threshold value and a co...  
JP6387899B2  
JP6385394B2  
JP2018133861A
To prevent axial vibration without involving complication of the structure of a claw pole type two-phase stepping motor having no countermeasure against axial vibration.Driving is performed by switching between a double-phase driving mod...  
JP2018130847A
To solve the problem that sudden noise caused by a resonance phenomenon resulting from variation in natural frequency accompanying change in temperature of a motor cannot be avoided.An image forming device has driving means, detecting me...  
JP2018129934A
To provide a conveyance speed controller capable of reducing the number of pieces of control information for maintaining the conveyable number of pieces of speed to reach target conveyance speed.A thermal printer (conveyance speed contro...  
JP2018129923A
To provide a pulse output device and a control system provided with the pulse output device having a controller correcting a pulse signal leading or lagging with respect to a predetermined timing.The present invention is a PLC system SYS...  
JP6373704B2  
JP2018124227A
To provide an electronic clock capable of shortening a time until detecting a rotation stop state of a rotor of a motor.An electronic clock includes hands, a motor for driving the hands, a motor driving circuit 30 connected to a coil of ...  
JP2018117482A
To provide a motor driving device which can suppress the worsening of correction accuracy owing to the bounce of a rotating member at impingement in origin correction control.A motor driving device 1 includes: a stepping motor 2; a rotat...  
JP2018113819A
To provide a vacuum valve capable of reducing overshoot or damping oscillation at the time of stop of a valve body.A vacuum valve comprises: a valve plate; a motor 12 for performing opening/closing drive on the valve plate; and a speed/p...  
JP2018112263A
To provide a vacuum valve capable of improving pressure adjustment performance in the vicinity of a zero-cross point.A vacuum valve 1 is configured to drive a valve plate 12 with a motor 13 to control opening of the valve plate 12, where...  
JPWO2017051756A1
The stepping motor drive which controls that a Evacuation tone state occurs at the time of initial operation of a stepping motor is provided. Stepping motor drive 10 is provided with triangular wave generation part 30, sine wave generati...  
JP2018107972A
To suppress breakdown of balance between positive current and negative current flowing into a coil of a stepping motor.A motor driving apparatus includes: a coil drive unit for switching an energization direction of a coil of a stepping ...  
JP2018107913A
To provide a motor control device capable of preventing a current larger than a preset current value from flowing to a stepping motor during holding.A motor driver 12 controls a stepping motor 2 with a constant current by chopping operat...  
JP6349662B2  
JPWO2017043629A1
A stator (52) which has a rotor (51) and the 1st, 2nd, and 3rd stator pole section, Coil A magnetically combined with the 1st stator pole section and the 3rd stator pole sectionCoil B magnetically combined with the 2nd stator pole sectio...  
JP6348869B2  
JP2018098851A
To smoothly control acceleration of a stepping motor by specifying the number of pulses.A motor control device includes: a stepping motor 305; a pulse generating unit 303 that outputs pulse signals 304 for driving the stepping motor 305;...  
JP2018094816A
To prevent damage on a sheet due to the occurrence of the motor drive timing deviation with delay of the transmission timing of a packet becoming a timing trigger when other information is already accumulated in a communication FIFO buff...  
JP2018098897A
To provide a motor controller and a motor control method capable of reducing fluctuation of driving torque of a motor.A motor controller performs control for switching energization of a coil by detection signals of hall elements 101, 102...  
JP2018093599A
To prevent loss of synchronism in a drive operation after driving of a stepping motor is stopped while a mobile body capable of reciprocation is moved.A motor controller for controlling a stepping motor includes: a drive unit for driving...  
JP2018087075A
To solve the problem that power consumption increases due to setting of a value of a predetermined exciting current component corresponding to a predetermined speed during the period when a rotor of a motor is rotated at the predetermine...  
JP6337837B2  
JP6337770B2  
JP2016220407A5  
JP2018084655A
To provide a lens drive device and lens drive method that conduct FB control from a low velocity to a high velocity, and are small in power consumption.A lens drive device is configured to: conduct open loop control of a stepping motor b...  
JP6332005B2  
JP6331090B2  
JP6329504B2  
JP6326936B2  
JP2018078696A
To provide a control device for a stepping motor capable of reducing rebound of a resin gear by reducing holding torque of the stepping motor when a gear side stopper abuts against a reference stopper.At the time of an initialization con...  
JP2018076154A
To solve the problem in which, when controlling a motor driving a preregistration roller, noise is generated due to the large control gain.Only in a period when it is necessary to accurately control the amount of rotation of a roller, a ...  
JP6324619B2  
JP2018074621A
To provide a motor control circuit and a motor drive system, which can suppress an increase in the number of terminals.A motor controller comprises: a first common terminal; a selection terminal to which a selection signal is inputted; a...  
JP2016194495A5  

Matches 451 - 500 out of 11,353