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Matches 601 - 650 out of 11,262

Document Document Title
JP6000652B2  
JP2016174479A
[Subject] An allophone and torque Ripple which occur when modulating drive frequency of a stepping motor periodically are controlled. [Means for Solution] Motor drive controller 100 is provided with the following. Bridge control circuit ...  
JP2016170019A
[Subject] In 2 coil type stepping motor, step rotation of a rotor is detected correctly, and 2 coil type stepping motor which can save the power of drive consumption current is provided. [Means for Solution] When you perform rotation det...  
JP2016170004A
[Subject] Dependence to a software process is reduced and a motor control circuit and an electronic timepiece which enable a drive of a more exact motor are provided. [Means for Solution] Motor control circuit 7 drives a plurality of ste...  
JP5995789B2  
JP5987124B2  
JP2016159457A
[Subject] Only when there is a possibility that a rotor of a stepping motor and a position of a stator might separate and carry out the De tone from predetermined physical relationship, average printing time is shortened by performing De...  
JP2015023703A5  
JP2015022136A5  
JP2015023682A5  
JP5979884B2  
JP2016152695A
[Subject] A motor drive circuit which can fully control decline in drive efficiency of a motor is obtained. [Means for Solution] A motor drive circuit is considered as composition provided with 1st magnetization circuit 101, 2nd magnetiz...  
JP2016524896A
A drive mechanism (16A, 16B) is constituted so that an actuator (30) thermally separated between two positions may be driven. A rotation actuating motor (18) constituted so that a drive mechanism may drive a motor member (20) rotatably, ...  
JP2016146682A
[Objects of the Invention] Coexistence of highly precise position control and high-speed rate control is aimed at. [Elements of the Invention] A high resolution encoder (11) for position control and a low resolution encoder (21) for rate...  
JP2016145801A
[Subject] An electronic timepiece and an electronic timepiece system which can operate a needle with a rich expression, and an electronic timepiece control method are provided making a setup of movement control easy. [Means for Solution]...  
JP2015023702A5  
JP2016140205A
To suitably control a motor current to a target value while constituting a device at low cost.A motor controller 100 comprises an H bridge circuit 20, and control means of driving a switching element of the H bridge circuit 20 with a PWM...  
JP5963452B2  
JP2015002609A5  
JP2016135077A
To improve followability of a motor curent with respect to a target value while configuring a motor current control apparatus at low cost.A motor current control apparatus comprises: an H bridge circuit that is connected to a motor coil;...  
JP2016131471A
To provide a driving device for a stepping motor capable of increasing torque in a high-speed region.The driving device for a stepping motor includes: a magnetization pattern storage sections (34, 64); and magnetization pattern selection...  
JP2016129448A
[Subject] In a drive of a stepping motor, a motor drive circuit which can reduce vibration which arises at the rate of predetermined is provided. [Means for Solution] Motor drive circuit 110 is provided with the following. Speed deciding...  
JP2016127653A
[Subject] In a motor current control device, the flattery nature of motor current to a desired value is improved, constituting a device cheaply. [Means for Solution] H bridged circuit connected to a motor coil which has a switching eleme...  
JP2016127630A
[Subject] Many current decay modes are provided conventionally, suitable current decay mode is set up according to change of revolving speed like acceleration of a stepping motor, and a slowdown, and vibration and a loss are reduced. [Me...  
JP2016127684A
[Subject] A motor drive unit which can perform chopping operation on suitable chopping frequency which can reduce gap of change timing with a control clock is provided. [Means for Solution] It is constituted so that a setup of a pluralit...  
JP5946359B2  
JP2016119767A
[Subject] The present invention controls a stable stepping motor, making revolving speed high-speed by Advance control and the change of a drive waveform. [Means for Solution] A rotation detecting means which outputs a detection signal a...  
JP2016119814A
[Subject] According to a rotation starting position and an end position of rotation of a stepping motor, a drive system is changed appropriately. [Means for Solution] It has a drive signal generating means which generates the 2nd wave-li...  
JP2014220868A5  
JP2016116282A
[Subject] It is not necessary to establish special cooling structure, and provides a manuscript conveying machine, an image reader, and an image forming device which are excellent also in silence. [Means for Solution] Mortared Leiber 302...  
JP5936883B2  
JP2016111828A
[Subject] A pulse generating circuit in which both gradual increase of frequency of a pulse and gradual decrease are possible is provided with easy circuit composition. [Means for Solution] An oscillation means to which a pulse generatin...  
JP2016111223A
[Subject] It connects with mutual inductance load, operation of a parasitism transistor formed in a semiconductor device is controlled, and a semiconductor device which can always maintain voltage of ST terminal certainly on regular volt...  
JP5933272B2  
JP2016101078A
[Subject] It aims at enlarging salient pole nature. [Means for Solution] A rotation child who has a rotor magnet and the axis of rotation by which multiple N pole and S pole were magnetized by turns by the perimeter, Countering arrangeme...  
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
[Subject] A rotation position of a rotation child of a motor is detected with simple composition. [Means for Solution] Position detector 22 is provided with the following. It is a device which detects rotation position X of rotation chil...  
JP2016082672A
[Subject] A De tone detecting device of a multi-phase pulse motor which can detect a De tone of a motor without needing reconstruction of the existing drive is provided. [Means for Solution] De tone detecting device 31 is connected in th...  
JP2016082859A
[Subject] Provide a De tone detecting device and a De tone detecting method of a pulse motor mechanism detectable in high accuracy for a De tone of a pulse motor. [Means for Solution] When it is made to return to a starting point positio...  
JP2016082673A
[Subject] A De tone detecting device of a multi-phase pulse motor which can detect a De tone of a motor without needing reconstruction of the existing drive is provided. [Means for Solution] De tone detecting device 31 is connected in th...  
JP2016073168A
[Objects of the Invention] Even if it increases motor current at the time of magnetization detection operation, a S/N ratio is kept from falling at the time of normal operation. [Elements of the Invention] In a stepping motor drive circu...  
JP2016073174A
[Subject] Abnormalities, such as a De tone of a stepping motor and a poor drive, are detected with sufficient accuracy for a short time. [Means for Solution] A stepping motor drive supplies a drive signal to stepping motor 101. The devic...  
JP2016070661A
[Subject] It is comparatively realizable in a circuit of small size, and also to drive variation of change of battery voltage and gear load torque, while robustness is comparatively high and a setup of rotation detection of an easy rotor...  
JP2016073143A
[Subject] Motor control equipment which avoids a stop of operation by torque shortage at the time of a rotation start of an electric motor, and realizes low consumption current-ization is provided. [Means for Solution] Predetermined supp...  
JP2016067193A
[Subject] Provide a control device and a control method of a motor which can be specified with high precision for a position of a rotor based on a reverse electromotive voltage which arises in a coil of a motor, without forming a sensor ...  
JP2016063606A
[Subject] When stopping a motor drive during acceleration, while not generating a De tone and stopping a drive in a magnetization position, a drive is stopped with the minimum number of pulses from a forced outage position. [Means for So...  
JP2016063735A
[Subject] A detection electricity angle signal is computed simply and restrictions about resolution of an encoder are eased. [Means for Solution] Control device 1 is provided with the following. Position generation part 30 which generate...  
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...  

Matches 601 - 650 out of 11,262