ClassID:

218265

H02P7/2855 - CPC Classification

Classification description:

Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Recent Application in this class:
#1
20230118710
2023-04-20

Ripple count circuit including varying ripple threshold detection

#2
20200343842
2020-10-29

Ripple count circuit including varying ripple threshold detection

#3
20180159452
2018-06-07

Apparatus and method for controlling a device

#4
20180046157
2018-02-15

Motor control device and game machine

#5
20180029668
2018-02-01

Method for controlling a motor of a derailleur of a bicycle electronic gearshift, and component suitable for carrying out such a method

#6
20170047874
2017-02-16

Method of controlling rotational speed of motor of electric bed

#7
20150263657
2015-09-17

Anti-jerk control apparatus and method for hybrid electric vehicle

#8
20140239866
2014-08-28

Motor driving device

#9
20130209074
2013-08-15

Control system for a straight slot direct current motor actuator

#10
20130207573
2013-08-15

SYNCHRONOUS CONTROL APPARATUS FOR SPEED-REDUCING DC MOTOR

#11
20110112709
2011-05-12

Anti-jerk control apparatus and method for Hybrid Electric Vehicle

#12
20100329724
2010-12-30

Motor control apparatus and image forming apparatus

#13
20100327797
2010-12-30

Motor control apparatus and image forming apparatus

#14
20090174357
2009-07-09

Servo motor controller

#15
20090072768
2009-03-19

Use of an accelerometer to control vibrator performance

#16
20080004832
2008-01-03

Sensorless measurement of positioning travel, especially on an electromotively operated parking brake

#17
20070230925
2007-10-04

Low speed driving control device of DC motor and control method thereof

#18
20060076913
2006-04-13

Method and apparatus for controlling a DC motor by counting current pulses