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Matches 651 - 700 out of 11,276

Document Document Title
JP5936883B2  
JP2016111828A
To provide a pulse generating circuit capable of both gradually increasing and decreasing a pulse frequency with a simple circuit configuration.The pulse generating circuit includes: vibration means for, when a potential of a first termi...  
JP2016111223A
To provide a semiconductor device which can be connected to a mutual inductance load and inhibit an operation of a parasitic transistor formed in the semiconductor device, and always and successfully keep a voltage of an ST terminal to a...  
JP5933272B2  
JP2016101078A
To increase saliency.A permanent magnet type motor includes: a rotor that includes a rotor magnet having a plurality of N-poles and S-poles magnetized alternately on the outer periphery and a rotation shaft; and first and second ring-sha...  
JP2016087731A
To provide a robot arm mechanism and a stepping motor controller capable of preventing unnecessary deactivation of a stepping motor.The robot arm mechanism includes: a robot arm having a joint portion J1; a stepping motor 31a for generat...  
JP2016092759A
To enhance accuracy by reducing the stop position error of a movable section and the drawing position error of a mask, in an imaging device capable of changing the shooting direction by a plurality of movable sections.A network camera 10...  
JP2016086538A
To detect the rotational position of the rotor of a motor by a simple configuration.A position detector 22 for detecting the rotational position X of the rotor 12 of a motor 10 including an electrical angle of M period (M is a natural nu...  
JP2016082672A
To provide a power swing detector for a polyphase pulse motor, capable of detecting power swing of a motor without necessity of modeling of an existing driving device.A power swing detector 31 is connected with the outside of a driver bo...  
JP2016082859A
To provide a step-out detector and a step-out detection method of a pulse motor capable of detecting step-out of a pulse motor with high accuracy.If it was a light-shielding state where the amount of light received by a photosensor 80 is...  
JP2016082673A
To provide a power swing detector for a polyphase pulse motor, capable of detecting power swing of a motor without necessity of modeling of an existing driving device.The power swing detector 31 is connected with the outside of a driver ...  
JP2016073168A
PURPOSE: To avoid degradation in an S/N ratio at a normal operation even after a motor current increases during an excitation detection operation.CONSTITUTION: The stepping motor driver circuit (20), including current detection circuits ...  
JP2016073174A
To enable high-precision detection of abnormality such as loss of synchronism, driving failure, etc. of a stepping motor.A stepping motor driving device supplies a driving signal to a stepping motor 101. The stepping motor has rotation d...  
JP2016070661A
To provide an electronic clock that has a relatively small circuit, has a relatively high robustness against drive dispersion such as variations in a battery voltage and a gear load torque, allows easy setup of rotation detection of a ro...  
JP2016073143A
To provide a motor control device which avoids operation stop due to torque shortage when a motor starts rotating and achieves low current consumption.A motor control device comprises: a supply current control section which controls curr...  
JP2016067193A
To provide a controller of a motor capable of highly accurately identifying a position of a rotor on the basis of counter-electromotive voltages generated in coils of the motor without providing a sensor detecting the position of the rot...  
JP2016063606A
To stop motor drive without generating a loss of synchronism and at an excitation position when stopping the drive during acceleration and to stop the drive with a minimum number of pulses from a forced stop position.A motor drive contro...  
JP2016063735A
To provide a control unit capable of easily calculating detection electric angle signal to reduce limitations relevant to the resolution of an encoder.A control unit 1 includes: a position generation section 30 that generates a position ...  
JP5904803B2  
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...  

Matches 651 - 700 out of 11,276