Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 501 - 550 out of 11,353

Document Document Title
JP2016184993A5  
JP6322076B2  
JP6322134B2  
JP6321776B2  
JP2018066720A
To provide a watch that can drive indicators at a low power consumption even if the watch requires high-speed processing, and a method for controlling the watch.A watch has indicators driven by a motor, and requires high-speed processing...  
JP2018064397A
To solve the problem in which: when a configuration is used that performs field weakening when the rotation speed of a rotor is equal to or faster than a predetermined rotation speed, field weakening is performed even when the field weak...  
JP6312078B2  
JP2018061383A
To stabilize feedback control of a stepping motor even when an error occurs in a rotation position of a rotor detected by an encoder built in the stepping motor.A motor control device 1 of the present invention comprises: hall sensors 3a...  
JP2018061434A
To control, in a motor controller using a sinusoidal drive waveform, a phase of the drive waveform while detecting a position of a motor axis.A motor controller according to the present invention drives a motor 101 having a structure in ...  
JP2018057163A
To provide a device for controlling a stepping motor that can reduce the occurrence of failure in start-up of a stepping motor.A device 10 for controlling a stepping motor comprises a drive circuit 1, a control part, and a reference volt...  
JP2018057088A
To achieve both two kinds of clockwise and anticlockwise meters with high accuracy by one kind of stepping motor.A stepping motor according to an embodiment comprises: a stopper; a rotor that has a contact part contacting with the stoppe...  
JP2018057087A
To suppress a phenomenon that a contact part of a rotor beats a stopper, in a stepping motor with a built-in stopper.A stepping motor according to an embodiment comprises a stopper, a rotor, and a plurality of coils. The rotor has a cont...  
JP2018057102A
To provide a motor control circuit capable of more smoothly starting rotation of a reel in a rotary drum type game machine.A motor controller is operated by a magnetic force acted between a plurality of coils of a stator side and a rotor...  
JP2018057089A
To maintain a contact state between a stopper and a contact part of a rotor and to hold an indicator of a meter at an initial position even after a current supplied to a stepping motor is blocked.A stepping motor according to an embodime...  
JP2018057076A
To implement accurate rotation detection of a rotor while suppressing power consumption of a stepping motor.A stepping motor (4) comprises a rotor (48) and a stator (147). When a direction that is orthogonal to a first direction (right) ...  
JP6303277B2  
JP2018050358A
To provide a driving device that can control the drive of a stepping motor with one A/D converter.A driving device included in an image forming apparatus 301 comprises: a motor 167a that includes two or more phase windings 401a to 401d; ...  
JP2018050404A
To solve the problem in which: when the frequency of a harmonic content included in a detected current value of a driving current is changed, if the degree of a digital filter is increased, the usage of memory is increased, resulting in ...  
JP2018046680A
To provide a load drive device that can change a cycle of load currents without using a complicated constitution to prevent deterioration in precision.A load drive device 1 electrifies a load 2 through a full-bridge circuit 3, and detect...  
JP6296846B2  
JP2018042346A
To hinder non-linearity on control due to deformation of drive waveform in speed control of a motor.A motor control device comprises: a drive waveform generation part that causes a motor to generate a drive waveform (sine wave, pseudo-tr...  
JP2018042411A
To provide a control system for a motor capable of suppressing useless heat generation of the motor.A control system for a motor comprises: a motor 21 provided on an engine; a drive part 23 that can on/off-control an application voltage ...  
JP6292087B2  
JP6292784B2  
JP2018038163A
To prevent erroneous detection of step out of a motor even in a case where, when the rotation of the motor is accelerated or decelerated, it may lie across the resonance region of the motor.A motor control device 10 comprises: a control ...  
JP2016119814A5  
JP2018038213A
To accurately control a motor rotation stop position.A motor control device 100 comprises: a BEMF detection portion 118 that detects a zero cross of a back electromotive voltage of a motor coil provided in a motor; and a CPU 101 that dri...  
JP6287997B2  
JP6287950B2  
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...  
JP2018033203A
To provide a motor control circuit capable of making an accurate loss-of-synchronism determination under various situations.A motor control circuit 12 comprises an input voltage measuring part 125, a temperature measuring part 128, an in...  
JP6281241B2  
JP6278622B2  
JP6278629B2  
JP2016119767A5  
JP2018023225A
To provide a motor control circuit capable of securing a drive torque under a wide range of environments to drive a motor.A motor control circuit 12 comprises an input voltage measurement unit 125, a temperature measurement unit 128, a s...  
JP2018023224A
To provide a motor control circuit that can drive a motor with a stable driving torque.A motor control circuit 12 comprises an input voltage measurement unit 125, a temperature measurement unit 128, a current setting unit, and a current ...  
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 ...  
JP6272798B2  
JP6271925B2  
JP6270530B2  
JP6271903B2  
JP6272797B2  
JP2018014875A
To make it possible to switch a method for controlling a stepping motor.A motor control device according to one embodiment is a motor control device that controls a stepping motor on the basis of a first current command value depending o...  
JP2018014436A
To provide an electronic component supply apparatus that can suppress reduction in an operation rate and reduction in positional accuracy of an electronic component.An electronic component supply apparatus comprises: a drive motor; a spr...  
JP6265601B2  
JP6258004B2  
JP6257709B2  
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...  
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 ...  

Matches 501 - 550 out of 11,353