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Patent Searching and Data


Matches 651 - 700 out of 11,263

Document Document Title
JP2016052174A
To provide an image forming apparatus capable of suppressing increase of a conveyance time by operating at an irreducible minimum measures to cope with a loss of synchronism in a document feeding motor under a low-temperature environment...  
JP2016052141A
To provide a motor drive device which is easily handled and capable of controlling a coil current in simple configuration, and a power module.The motor drive device controls the coil current that flows to a coil forming a motor, by switc...  
JP5900432B2  
JP2016044982A
To provide an electronic equipment such as an analog electronic timepiece, for which either of the normal rotation and the reverse rotation which is smaller in resource consumption made by motor rotation can be determined to be the rotat...  
JP2016046859A
To make a contribution to reduction in power consumption.The motor control apparatus, applying an AC driving current substantially orthogonal to a plurality of armature coils independent of each other and rotating a magnetized rotor, inc...  
JP5892790B2  
JP5888485B2  
JP2016034212A
To control slow up/down of a stepping motor by smaller memory capacity and smaller circuit configuration.A stepping motor driving apparatus 110 includes: a table 111 for thinning and storing data for specifying pulse width of a driving p...  
JP2016033679A
To provide an optical instrument capable of stopping a lens at a position where electric power consumption is small without causing image blur.An optical instrument includes: a lens drive device which is supplied with electric power from...  
JP2016030306A
To provide a tool breakage or workpiece detection device capable of improving durability and reducing cost by reducing mechanical consumption portions as compared with conventional ones.A tool breakage or workpiece detection device inclu...  
JP2016031329A
To provide a stepping motor control circuit capable of switching between normal and reverse drives stably, a semiconductor device including the stepping motor control circuit, and an analog electronic clock equipped with the stepping mot...  
JP5875265B2  
JP5867354B2  
JP5867575B2  
JP2014128143A5  
JP2014124000A5  
JP2016025769A
To provide a means for performing switching control of a phase excitation mode of a stepping motor without increasing a load of interruption processing.A motor controller includes: an excitation mode setting part to set an excitation mod...  
JP2016021850A
To detect stall of a polyphase motor operated in microstep mode.At least two microstep waveforms having phase shift are applied to the phase winding of a motor, the sum of the currents flowing through the phase winding is measured, a sam...  
JP5850646B2  
JP5850652B2  
JP2016019371A
To provide a method of compensating for backlash of a rotation mechanism by calculating a backlash amount when identifying a rotation position in the case where a specific direction in the fixed rotation mechanism becomes a reference dir...  
JP5847499B2  
JP2016010115A
To provide an application current control method by which an optimal current can be applied to a stepping motor, in an image reading apparatus that utilizes the stepping motor for moving a reading section.The application current control ...  
JP2016003877A
To provide a motor control circuit, an electronic clock, and a method for controlling a motor that can surely drive a step motor in a reverse rotation direction and reduce the power consumption.A motor control circuit 37 includes: a reve...  
JP5840153B2  
JP5837547B2  
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  
JP2015213424A
To provide a controller for driving a stepper motor with a magnetic rotor and at least one coil.The controller has a power stage for supplying the at least one coil with current, at least one Hall sensor for providing a signal as a funct...  
JP2015208195A
To provide a display device capable of defining an origin (reference position) of a reflection unit which moves by a stepping motor without using a mechanical switch.A display device comprises: a stepping motor 41; a concave mirror 31 wh...  
JP5814767B2  
JP2015204711A
To preferentially drive a high-priority stepping motor and furthermore to shorten a drive delay time of a low-priority stepping motor.There is provided a stepping motor drive control device that includes motor control means 35 for drivin...  
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  
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  
JP5797044B2  
JP2015180124A
To provide a rotation operation device having a reaction force control function capable of reliably holding a rotation operation part when the rotation operation part is located in an anchor region in so called reaction force control.Ope...  
JP2015177674A
To provide a control device of a stepping motor capable of reducing radiation/conduction noise of the stepping motor that is driven by a constant current control system.A control device includes a driving part 9 and a control part 8. Aft...  
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  

Matches 651 - 700 out of 11,263