Patents-Review.com
ClassID:

218286 ⎘

H02P8/12 - CPC Classification

Classification description:

Arrangements for controlling dynamo-electric motors of the kind having motors rotating step by step Control or stabilisation of current

Recent Application in this class:
#1
20250239952
2025-07-24

INTEGRATED CIRCUIT DEVICE AND MOTOR DRIVER

 #2
20250183824
2025-06-05

METHODS AND APPARATUS TO SENSE CHANGES IN A LOAD OF A STEPPER MOTOR

 #3
20250070696
2025-02-27

MOTOR DRIVE CONTROL DEVICE

 #4
20250007432
2025-01-02

MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD

 #5
20240266977
2024-08-08

Method and circuit arrangement for controlling a stepper motor

 #6
20240128904
2024-04-18

Switching for six-step motor drives

 #7
20230268855
2023-08-24

Power transfer based stall detection techniques for stepper motor

 #8
20230258036
2023-08-17

Door motion controller with accelerometer compensation

 #9
20230229114
2023-07-20

Electronic Watch And Electronic Watch Control Method

 #10
20230198433
2023-06-22

Stepping motor abnormality detecting device

 #11
20230179129
2023-06-08

MOTOR DRIVING DEVICE, MOTOR SYSTEM AND ELECTRICAL DEVICE

 #12
20230170832
2023-06-01

Motor control device

 #13
20230144831
2023-05-11

Driver device for a stepping motor

 #14
20230131824
2023-04-27

Control device for stepping motor

 #15
20230129142
2023-04-27

Driver device

 #16
20230097035
2023-03-30

Peak current regulation for stepper motors

 #17
20230067632
2023-03-02

Current regulation for stepper motors using dual loop control through voltage mode and current mode

 #18
20220271693
2022-08-25

Systems and methods for controlling stepping motor

 #19
20220181997
2022-06-09

Stepping motor control device, movement, timepiece, and stepping motor control method

 #20
20220181996
2022-06-09

Current state determination method and circuit

 #21
20220085739
2022-03-17

Controller of stepping motor, control method of stepping motor, and stepping motor drive controlling system

 #22
20210336570
2021-10-28

Control apparatus and method of controlling the same

 #23
20210236704
2021-08-05

Stepper motor drive systems and tubing occluder system

 #24
20210226566
2021-07-22

Method and circuit arrangement for controlling a stepper motor

 #25
20210151436
2021-05-20

High voltage logic circuit

 #26
20210135610
2021-05-06

Motor driving circuit, integrated circuit device, electronic apparatus, and motor control method

 #27
20210099116
2021-04-01

Current sensing and regulation for stepper motor driver

 #28
20210099115
2021-04-01

Current sensing and regulation for stepper motor driver

 #29
20210091694
2021-03-25

Stepping motor control device, timepiece and method for controlling stepping motor

 #30
20210050808
2021-02-18

Average current control in stepper motor

 #31
20210006187
2021-01-07

Electronic watch and method for controlling electronic watch

 #32
20200295690
2020-09-17

Motor control device and motor control method

 #33
20200295684
2020-09-17

Driving circuit and method for stepping motor

 #34
20200295683
2020-09-17

Driving circuit and driving method of stepping motor and electronic machine using the same

 #35
20200287487
2020-09-10

Controller of stepping motor, control method of stepping motor, and stepping motor drive controlling system

 #36
20200285200
2020-09-10

Electronic timepiece, movement, and motor control circuit

 #37
20200266740
2020-08-20

Stall detection in stepper motors using differential back-EMF between rising and falling commutation phase of motor current

 #38
20200266739
2020-08-20

Driving circuit for stepping motor, method of driving stepping motor, and electronic device using the same

 #39
20200259434
2020-08-13

Motor controller having low standby power consumption

 #40
20200249631
2020-08-06

Electronic timepiece, movement, and motor control circuit for a timepiece

 #41
20200225618
2020-07-16

Analog electronic timepiece, stepping motor control device, and analog electronic timepiece control method

 #42
20200168605
2020-05-28

High voltage logic circuit

 #43
20200091846
2020-03-19

Control device of motor, control system, and control method

 #44
20200036309
2020-01-30

Movement, electronic timepiece, and motor drive control method

 #45
20190379311
2019-12-12

Motor control device and feeder

 #46
20190302698
2019-10-03

Movement and electronic timepiece

 #47
20190260321
2019-08-22

Motor control apparatus, sheet conveyance apparatus, document feeding apparatus, document reading apparatus, and image forming apparatus

 #48
20190238076
2019-08-01

MOTOR CONTROL DEVICE

 #49
20190222155
2019-07-18

Servo control strategy and system for simultaneously eliminating counter- electromagnetic force (CEMF) and load torque disturbances

 #50
20190222151
2019-07-18

Motor control apparatus and motor control method for reducing influence of magnetic fluxes from yokes

 #51
20190190417
2019-06-20

Motor control device and step-out state detection method

 #52
20190181785
2019-06-13

Motor control circuit, motor control device, actuator and control method for stepping motor

 #53
20190158691
2019-05-23

Sheet conveyance apparatus and image forming apparatus

 #54
20190157998
2019-05-23

Motor control circuit, motor control device, actuator and control method for stepping motor

 #55
20190148932
2019-05-16

Method and device for detecting phase failures, in particular network faults, in a converter

 #56
20190140568
2019-05-09

Actuator with integrated position sensor and play compensation

 #57
20190109551
2019-04-11

Stall detection in stepper motors using differential back-EMF between rising and falling commutation phase of motor current

 #58
20190109550
2019-04-11

METHOD OF CONTROLLING STEPPING MOTOR

 #59
20190103827
2019-04-04

Motor control device, sheet conveying device, document feeding device, document reading device, and image forming apparatus

 #60
20190081581
2019-03-14

Motor drive control device and motor drive control method

 #61
20190036466
2019-01-31

Motor control device and printer

 #62
20190028048
2019-01-24

Driving device, printer device, and method thereof

 #63
20190019642
2019-01-17

Electrical relay device

 #64
20180375434
2018-12-27

Buck voltage converter

 #65
20180358913
2018-12-13

MOTOR CONTROL APPARATUS, SHEET CONVEYANCE APPARATUS, DOCUMENT FEEDING APPARATUS, DOCUMENT READING APPARATUS, AND IMAGE FORMING APPARATUS

 #66
20180356467
2018-12-13

Method for detecting an error in a generator unit

 #67
20180351490
2018-12-06

Driving circuit for stepping motor

 #68
20180309439
2018-10-25

Regulating transition slope using differential output

 #69
20180294754
2018-10-11

Control device for stepping motor and control method for stepping motor

 #70
20180262136
2018-09-13

Motor drive controller, control method for motor drive controller, control program for motor drive controller, and method for determining number of divisions of basic step angle

 #71
20180259560
2018-09-13

Motor drive control device and method for determining controlled frequency for motor

 #72
20180227448
2018-08-09

Sheet conveyance apparatus and image forming apparatus

 #73
20180115090
2018-04-26

Motorized hot stick system for clamping grounding devices on overhead lines

 #74
20180111400
2018-04-26

BATTERY-POWERED PRINTER, POS SYSTEM, AND METHOD FOR DRIVING BATTERY-POWERED PRINTER

 #75
20180109213
2018-04-19

Microstepper motor control circuit PWM output coupled to H-bridge gates

 #76
20180076703
2018-03-15

Load driving apparatus

 #77
20180062550
2018-03-01

Method for detecting stalling of an electric stepper motor, an electric stepper motor and a heating, ventilation and/or air conditioning system with an electric stepper motor

 #78
20170373622
2017-12-28

Motor control device and motor controlling method

 #79
20170366124
2017-12-21

STEPPING MOTOR DRIVE DEVICE

 #80
20170346425
2017-11-30

CURRENT REGULATION IN MOTORS

 #81
20170317625
2017-11-02

Cascode structure for linear regulators and clamps

 #82
20170302203
2017-10-19

Motor control apparatus, sheet conveyance apparatus, document feeding apparatus, document reading apparatus, and image forming apparatus

 #83
20170294856
2017-10-12

STEPPING MOTOR CONTROL DEVICE AND STEPPING MOTOR CONTROL METHOD FOR CONTROLLING STEPPING MOTOR

 #84
20170255152
2017-09-07

Motor connection detecting device, motor connection detecting method, image forming device, and conveyance device

 #85
20170194886
2017-07-06

Method and circuit arrangement for controlling a stepper motor

 #86
20170163189
2017-06-08

Pulse motor driving circuit and method of driving a pulse motor

 #87
20170103619
2017-04-13

Power management for an automated banking system

 #88
20170063264
2017-03-02

Motor driving apparatus, motor control apparatus, conveyance apparatus and motor driving method

 #89
20170038736
2017-02-09

Motor drive device and electronic timepiece

 #90
20160359437
2016-12-08

Motor controller and method for controlling motor

 #91
20160352272
2016-12-01

Motor controller and method for controlling motor

 #92
20160352271
2016-12-01

Stepper motor driver circuit

 #93
20160276967
2016-09-22

Stepping motor driving device and timepiece

 #94
20160263331
2016-09-15

Apparatus with motor winding resistance measurement and method for controlling such an apparatus

 #95
20160254767
2016-09-01

Decay lock loop for time varying current regulation in electric motors

 #96
20160218649
2016-07-28

Motor current controller and method for controlling motor current

 #97
20160218648
2016-07-28

Motor current controller and method for controlling motor current

 #98
20160079839
2016-03-17

Step motor and system for driving step motor

 #99
20160056743
2016-02-25

MOTOR DRIVE CONTROL APPARATUS AND MOTOR DRIVE CONTROL METHOD

 #100
20160043667
2016-02-11

Motor drive apparatus

 #101
20150326158
2015-11-12

Controller for driving a stepper motor

 #102
20150311894
2015-10-29

Systems and methods for sensing current through a low-side field effect transistor

 #103
20150303850
2015-10-22

Current regulation in motors

 #104
20150302706
2015-10-22

Power management for an automated banking machine

 #105
20150180392
2015-06-25

Phase management and power saving mode in an image forming apparatus

 #106
20150145202
2015-05-28

Stepping motor control device and conveying device provided with the same

 #107
20150123591
2015-05-07

Motor driving circuit

 #108
20150123590
2015-05-07

Method and circuit assembly for driving a stepper motor

 #109
20150116837
2015-04-30

Head-up display device

 #110
20150084573
2015-03-26

STEPPING MOTOR AND TIMEPIECE PROVIDED WITH STEPPING MOTOR

 #111
20150028791
2015-01-29

Image forming apparatus

 #112
20150028790
2015-01-29

Sensed motor winding current adapting blanking period between max/min values

 #113
20150015177
2015-01-15

Dynamic mixed-mode current decay apparatus and methods

 #114
20140361722
2014-12-11

Diagnosis of over-current conditions in bipolar motor controllers

 #115
20140333250
2014-11-13

Image forming apparatus, motor control apparatus, and method of controlling a motor

 #116
20140312825
2014-10-23

Pulse motor driving circuit and method of driving a pulse motor

 #117
20140239873
2014-08-28

Pulsed-motor driving apparatus and pulsed-motor driving method

 #118
20130307454
2013-11-21

Driver circuit and method

 #119
20130293180
2013-11-07

Drive circuit and method

 #120
20130221894
2013-08-29

Method and circuit arrangement for detecting motor load without sensors and for controlling motor current according to load for a stepper motor

 #121
20130188256
2013-07-25

Rotary drive mechanism and light dispersion system having the same

 #122
20130147278
2013-06-13

Induction load driving system

 #123
20130119914
2013-05-16

Method and circuit assembly for current control in 3-phase motors

 #124
20130083434
2013-04-04

Diagnosis of over-current conditions in bipolar motor controllers

 #125
20130009588
2013-01-10

DRIVE CONTROLLING APPARATUS AND DRIVE CONTROLLING METHOD FOR STEPPING MOTOR, DRIVE CONTROLLING SYSTEM, AND OPTICAL APPARATUS

 #126
20120274261
2012-11-01

Method and circuit arrangement for controlling current in motors

 #127
20120182840
2012-07-19

Motor drive device, timepiece device, and electronic device

 #128
20120153886
2012-06-21

Method and circuit arrangement for sensorless engine load detection and for controlling the motor current in accordance with the load value in stepper motors

 #129
20110291604
2011-12-01

Stepper motor controller and method for controlling same

 #130
20110241597
2011-10-06

H-BRIDGE DRIVE CIRCUIT FOR STEP MOTOR CONTROL

 #131
20110229235
2011-09-22

Image forming apparatus having stepping motor arranged in conveying path for paper, and method for controlling stepping motor in image forming apparatus

 #132
20110204270
2011-08-25

Method for operating a valve having a stepper motor as actuator

 #133
20110199865
2011-08-18

Stepping motor control circuit and analogue electronic watch

 #134
20110133682
2011-06-09

METHOD AND DEVICE FOR DETECTING STEP LOSSES OF A STEP MOTOR

 #135
20110080124
2011-04-07

Inverter apparatus, inverter control system, motor control system, and method of controlling inverter apparatus

 #136
20110068732
2011-03-24

Driver circuit

 #137
20110057600
2011-03-10

Stepping motor driving apparatus

 #138
20110025252
2011-02-03

STEPPING MOTOR DRIVE APPARATUS AND STEPPING MOTOR DRIVING METHOD

 #139
20110025251
2011-02-03

Motor driving device

 #140
20110001449
2011-01-06

Motor controlling apparatus and motor controlling method thereof

 #141
20100327831
2010-12-30

Constant current supply type of switching regulator

 #142
20100295557
2010-11-25

Method and circuit arrangement for measurement of the current through an inductive load

 #143
20100289445
2010-11-18

Method and hardware system for driving a stepper motor in feed-forward voltage mode

 #144
20100188036
2010-07-29

Driver circuit for driving a stepping motor

 #145
20100007381
2010-01-14

Drive signal output circuit and multi-chip package

 #146
20090190280
2009-07-30

Current limiter circuit and motor drive circuit

 #147
20090096383
2009-04-16

Inverter and liquid crystal display device including the same

 #148
20090085509
2009-04-02

Stepper motor device with compensating non-sinusoidal driving values and method of producing the driving values

 #149
20090072777
2009-03-19

Field winding type of synchronous rotary electric machine

 #150
20080309274
2008-12-18

Dual mode stepper motor

 #151
20080265827
2008-10-30

Step motor driving circuits

 #152
20080265820
2008-10-30

Motor driving circuits

 #153
20080225456
2008-09-18

Overcurrent Protecting Circuit, Motor Drive Circuit, and Semiconductor Device

 #154
20070273321
2007-11-29

Stepping-motor control apparatus and method of controlling the apparatus

 #155
20070216335
2007-09-20

Stepping motor controlling device

 #156
20060261690
2006-11-23

Apparatus and method for dissipating a portion of the commutation derived collapsing field energy in a multi-phase unipolar electric motor

 #157
20060120699
2006-06-08

Device for correcting a digital estimate of an electric signal

 #158
20060097685
2006-05-11

Controller of pulse width modulation signal-driven device, and method of reducing noise of the device

 #159
20060087276
2006-04-27

Stepping motor driving system and stepping motor driving process

 #160
20060071627
2006-04-06

Motor current reconstruction via DC bus current measurement

 #161
20060055270
2006-03-16

Apparatus and method for dissipating a portion of the commutation derived collapsing field energy in a multi-phase unipolar electric motor

 #162
20050218843
2005-10-06

Motor control circuit for supplying a controllable driving current

 #163
20050206341
2005-09-22

Motor current reconstruction via DC bus current measurement

 #164
20050052152
2005-03-10

Circuit for driving a stepper motor and method of controlling a stepper motor driver

 #165
20050047185
2005-03-03

Motor drive

 #166
20050040784
2005-02-24

Method and apparatus for extending the torque range of a stepper motor

 #167
20050035736
2005-02-17

Method and apparatus for improved low current accuracy in multi-phase step motors

 #168
20050024007
2005-02-03

Method and apparatus for independently controlling each phase of a multi-phase step motor

 #169
15813661
2020-04-28

Analog switching current drive

 #170
15656021
2018-09-25

Adaptive valve control system

 #171
14634683
2016-10-04

Variable torque control of a stepper motor