ClassID:

216794

H02H7/0844 - CPC Classification

Classification description:

Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements Fail safe control, e.g. by comparing control signal and controlled current, isolating motor on commutation error

Recent Application in this class:
#1
20250376032
2025-12-11

ADVANCED SHUTDOWN DURING FAULT-CURRENT CONDITIONS FOR SEMICONDUCTOR DEVICES

#2
20250202403
2025-06-19

DETECTION OF PULSE-WIDTH MODULATION DUTY CYCLE ERRORS

#3
20250202322
2025-06-19

DEVICE ASSEMBLY WITH A CONTROLLER FOR CONDITION MONITORING

#4
20250149877
2025-05-08

CONTROL DEVICE

#5
20250141211
2025-05-01

SAFETY STATUS MONITORING SYSTEM AND METHOD FOR MOTOR DRIVE CONTROL SYSTEM

#6
20250055272
2025-02-13

FAULT DETECTION METHODS AND DEVICES FOR PULSE WIDTH MODULATION CONVERTERS

#7
20250030235
2025-01-23

ELECTRICAL POWER DISTRIBUTION SYSTEMS WITH A BYPASS UNIT THAT COUPLES TO A LOAD AND ELECTRICALLY ENGAGES ONE OF TWO ALTERNATE UNITS FOR POWERING THE LOAD AND RELATED METHODS

#8
20240421588
2024-12-19

Motor driver circuit having reverse current detection mechanism

#9
20240275326
2024-08-15

SAFETY DEVICE, SYSTEM AND METHOD FOR MONITORING AN ELECTRIC MOTOR

#10
20240106227
2024-03-28

Half-wave condition detection in electrical appliances

#11
20230155370
2023-05-18

Electrical power distribution systems with a bypass unit that couples to a load and electrically engages one of two alternate units for powering the load and related methods

#12
20220311237
2022-09-29

Overcurrent protection for electric motor

#13
20210296882
2021-09-23

Motor controller providing a dual-channel functional-safety safe-torque-off function

#14
20210273526
2021-09-02

Rotating electrical machine provided with a current sensor and a diagnostic module

#15
20210234364
2021-07-29

Cut-off circuit diagnostic device

#16
20210119441
2021-04-22

Progressive protection functions for motor overload relay

#17
20210044223
2021-02-11

Motor driving apparatus and refrigeration cycle equipment

#18
20200412123
2020-12-31

Electrical power distribution systems with a bypass unit that couples to a load and electrically engages one of two alternate units for powering the load and related methods

#19
20200247464
2020-08-06

Power conversion device, motor module, and electric power steering device

#20
20200136550
2020-04-30

Motor parallel winding differential current protection

#21
20200083880
2020-03-12

Motor drive device and electric power steering device

#22
20200036319
2020-01-30

Fault isolation for pulse width modulated three phase motor systems

#23
20190393820
2019-12-26

Motor control apparatus and method for vehicle

#24
20190339098
2019-11-07

Fail-safe speed monitoring of a drive

#25
20190305544
2019-10-03

Electric motor ground protection

#26
20190097628
2019-03-28

Safe switching device

#27
20190052074
2019-02-14

Digital line protection

#28
20190028046
2019-01-24

Motor drive control device and motor drive control method

#29
20180301893
2018-10-18

Window control device for a vehicle and a method therefor

#30
20180287466
2018-10-04

Motor driving apparatus, method for controlling motor driving apparatus, inverter apparatus, and power apparatus

#31
20180183426
2018-06-28

Fault and short-circuit protected output driver

#32
20180099181
2018-04-12

Systems and methods for reducing runaway resistance on an exercise device

#33
20180019586
2018-01-18

Method for controlling a drive

#34
20170317638
2017-11-02

Motor driver circuit and process of matching received, determined voltages

#35
20170279266
2017-09-28

Electricity amount detection method and device, terminal and storage medium

#36
20170272013
2017-09-21

Motor controller

#37
20170264221
2017-09-14

Motor drive circuitry

#38
20170210231
2017-07-27

Redundant circuit disconnection for electric vehicles

#39
20170045878
2017-02-16

Device and method for failsafe monitoring of a moving machine part

#40
20170043470
2017-02-16

Combination electric tool and control method therefor

#41
20160373051
2016-12-22

Motor bridge driver circuit

#42
20160336735
2016-11-17

Power interrupting device

#43
20160322893
2016-11-03

Method for monitoring a battery, evaluation device, and measuring system

#44
20160268799
2016-09-15

CONTROL DEVICE AND CONTROL METHOD FOR VEHICLE OPEN-CLOSE MEMBER, AND VEHICLE OPEN-CLOSE MEMBER INCLUDING THE CONTROL DEVICE

#45
20160200355
2016-07-14

Motor controller, electric power steering device using the motor controller, and vehicle using the motor controller

#46
20160134212
2016-05-12

Motor control apparatus, electric power steering apparatus and vehicle using the same

#47
20160094022
2016-03-31

Fail-safe device corresponding apparatus and vehicle

#48
20160087422
2016-03-24

Fault and short-circuit protected output driver

#49
20160006237
2016-01-07

METHOD AND DEVICE FOR SAFE VOLTAGE CONNECTION OF A DRIVE INVERTER

#50
20150340960
2015-11-26

Power conversion apparatus and method for analyzing for abnormality in power conversion apparatus having cutoff devices

#51
20150331032
2015-11-19

Method for monitoring a half bridge branch in a half bridge

#52
20150326154
2015-11-12

Motor control for stability and power supply protection

#53
20150288304
2015-10-08

Electric motor drive isolation circuit

#54
20150214863
2015-07-30

Control device of electric sealed compressor, electric sealed compressor apparatus, and home appliance comprising control device and electric sealed compressor apparatus

#55
20150188480
2015-07-02

Electric motor, compressor, and method for controlling electric motor or compressor

#56
20150171779
2015-06-18

Power output stage, method for operation

#57
20150098157
2015-04-09

Vehicle power controlling apparatus

#58
20150061562
2015-03-05

MOTOR DRIVE UNIT

#59
20150055258
2015-02-26

Driving circuit for an electric motor

#60
20150008849
2015-01-08

Motor control for stability and power supply protection

#61
20140265959
2014-09-18

Motor drive device

#62
20140253008
2014-09-11

Fail safe circuit

#63
20140111218
2014-04-24

Failure prediction in a rotating device

#64
20120319632
2012-12-20

Driving circuit for an EC-motor

#65
20120268107
2012-10-25

Safety circuit arrangement and method for the fail-safe monitoring of a movement variable

#66
20110285335
2011-11-24

Motor drive device

#67
20110164340
2011-07-07

Normal-condition-off-type protection element and control unit having the normal-condition-off-type protection element

#68
20110084642
2011-04-14

Method and apparatus for failsafe monitoring an electromotive drive

#69
20100148733
2010-06-17

Reverse polarity protection for MOSFETs

#70
20100014196
2010-01-21

Load driving circuit

#71
20090310264
2009-12-17

Motorised barrier roller

#72
20090295321
2009-12-03

Motor drive circuit

#73
20090219659
2009-09-03

Motor control circuit with malfunction monitoring

#74
20090097171
2009-04-16

Apparatus and method for operation of an electrical machine for driving a motor vehicle

#75
20090051309
2009-02-26

Process for driving an electric machine and driver system therefor

#76
20090045763
2009-02-19

Method and arrangement for monitoring signals

#77
20080170421
2008-07-17

Malfunction determining device for drive circuit and drive unit including the same, and method for determining malfunction in drive circuit

#78
20080106320
2008-05-08

Inverter apparatus

#79
20080094762
2008-04-24

Power supply apparatus with function of detecting abnormality of current sensor

#80
20080048603
2008-02-28

Integrated control and diagnostics systems

#81
20070273343
2007-11-29

Supply unit for a driver circuit and method for operating same

#82
20070241701
2007-10-18

Motor drive circuit

#83
20070097569
2007-05-03

System and method of over voltage control for a power system

#84
20070090780
2007-04-26

Series motor and method of controlling the same

#85
20070066433
2007-03-22

Speed monitoring device

#86
20070035976
2007-02-15

Method and arrangement for monitoring a power output stage

#87
20070001643
2007-01-04

Method and control circuit for determining an operating state when controlling a fan motor

#88
20060164779
2006-07-27

DC motor controller safety override

#89
20060033552
2006-02-16

Inverter apparatus

#90
20050083614
2005-04-21

Electronic circuit arrangement for switching an electrical load in a fail safe manner