ClassID:

218233

H02P6/187 - CPC Classification

Classification description:

Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor; Electronic commutators; Circuit arrangements for detecting position without separate position detecting elements using the star point voltage

Recent Application in this class:
#1
20220103099
2022-03-31

Motor system

#2
20210273589
2021-09-02

Semiconductor device and motor driving system using the same

#3
20210091700
2021-03-25

Control device for three-phase synchronous motor and electric power steering device using the same

#4
20190229643
2019-07-25

Alternate grounding of inverter midpoint for three level switching control

#5
20190181783
2019-06-13

Semiconductor device, motor driving system, and motor control program

#6
20190085809
2019-03-21

Starting power generation apparatus and starting power generation method

#7
20190006971
2019-01-03

Controller for power converter

#8
20180287526
2018-10-04

Control device of synchronous electric motor, integrated motor system, pump system, and positioning system

#9
20180083558
2018-03-22

ROTOR POSITION SENSING SYSTEM FOR THREE PHASE MOTORS AND RELATED METHODS

#10
20180054144
2018-02-22

Method and device for damping voltage harmonics in a multilevel power converter

#11
20170194889
2017-07-06

Synchronous motor control apparatus and drive system using the same

#12
20170155347
2017-06-01

Device and control method for driving sensorless BLDC motor

#13
20160373036
2016-12-22

Motor control device

#14
20160320208
2016-11-03

Sensor-less circuit and method for detecting a rotor position

#15
20160320207
2016-11-03

Sensor-less circuit and method for detecting a rotor position

#16
20160094180
2016-03-31

Electric motor drive control device, electrically driven power steering device, electrically driven brake device, and electrically driven pump device

#17
20150236629
2015-08-20

Brushless motor driving circuit and brushless motor driving system

#18
20150155805
2015-06-04

Electric motor drive device

#19
20150054441
2015-02-26

Method and device for determining the position of a brushless electric drive

#20
20140312820
2014-10-23

Apparatus for differencing comparator and associated methods

#21
20140176031
2014-06-26

Back electromotive force detection circuit and motor driving control apparatus using the same

#22
20140152219
2014-06-05

Control device and method for determining the rotor angle of a synchronous machine

#23
20140152218
2014-06-05

Control device and method for determining the rotor angle of a synchronous machine

#24
20140145659
2014-05-29

Method for determining the rotary position of the rotor of an electric machine

#25
20140117889
2014-05-01

Motor driving device, electronic appliance, and vehicle

#26
20140077738
2014-03-20

Driving System For Synchronous Motor

#27
20140028236
2014-01-30

Driving apparatus and motor

#28
20130057193
2013-03-07

Synchronous motor drive system and synchronous motor

#29
20120068649
2012-03-22

Back-EMF detection for motor control

#30
20110204834
2011-08-25

Motor driving circuit

#31
20110068732
2011-03-24

Driver circuit

#32
20100066284
2010-03-18

Drive system of synchronous motor

#33
20090189556
2009-07-30

Motor drive device and semiconductor integrated circuit device

#34
20090108784
2009-04-30

Motor control apparatus and motor system

#35
20080252238
2008-10-16

Motor drive circuit

#36
20080199159
2008-08-21

Fan motor controller

#37
20070132418
2007-06-14

Brushless motor control apparatus for pump

#38
15215425
2017-11-28

Rotor position sensing system for three phase motors and related methods