ClassID:

217903

H02M5/44 - CPC Classification

Classification description:

Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac

Sub-classes:
Recent Application in this class:
#1
20260149355
2026-05-28

Method for Operating a Frequency Converter and Frequency Converter

#2
20240372499
2024-11-07

Active harmonic filter and reactive power control system for naval ship power systems

#3
20240048042
2024-02-08

VOLTAGE TRANSFORMER

#4
20230134013
2023-05-04

Integrated power system capable of switching between power supply mode and electronic load mode and switching method thereof

#5
20220385204
2022-12-01

Power conversion device and press apparatus

#6
20220069725
2022-03-03

Power Supply Unit with Dynamically Configurable Power Distribution

#7
20210408936
2021-12-30

Method for controlling a converter

#8
20210336549
2021-10-28

Bidirectional power converter

#9
20210079900
2021-03-18

Power control circuit, power generator, and power generation system

#10
20210044211
2021-02-11

DC link capacitor pre-charge method utilizing series boost converter

#11
20200220470
2020-07-09

Power converter, compressor, air-sending device, and air-conditioning apparatus

#12
20200084878
2020-03-12

Direct current link bus for a power converter and method of forming a direct current link bus

#13
20200081072
2020-03-12

Method for insulation monitoring of a converter-supplied power supply system

#14
20190323488
2019-10-24

Adaptor for wind turbine refurbishment and associated methods

#15
20190234663
2019-08-01

Controller for a cooling unit compressor, system and use

#16
20190181787
2019-06-13

Control of a wind turbine generator for reduced tonal audibility

#17
20190097546
2019-03-28

Electric system architecture for a vehicle with multiple load characteristics

#18
20190089266
2019-03-21

Power converter and air conditioner equipped with the same

#19
20190052183
2019-02-14

True DC current source

#20
20190044377
2019-02-07

UNINTERRUPTIBLE POWER SUPPLY

#21
20190043784
2019-02-07

Series circuit arrangement of power semiconductors

#22
20180358808
2018-12-13

Device and method for controlling a load flow in an alternating-voltage network

#23
20180351358
2018-12-06

Electrical power systems having zig-zag transformers

#24
20180278170
2018-09-27

Power generation system for self activation

#25
20180226881
2018-08-09

Power conversion device and air conditioner comprising same

#26
20180219378
2018-08-02

Power communication architecture for an aircraft

#27
20180187652
2018-07-05

Power Converter for Full Conversion Wind Turbine Systems

#28
20180183351
2018-06-28

Power supply for output of various specifications

#29
20180175622
2018-06-21

Power transmission arrangement and method for operating a power transmission arrangement

#30
20180062531
2018-03-01

Hybrid control method for an electrical converter

#31
20180041137
2018-02-08

Refrigeration cycle apparatus

#32
20180034361
2018-02-01

Power supply device and air conditioner

#33
20170358998
2017-12-14

Electric power conversion circuit including switches and reactors, and electric power conversion device including electric power conversion circuit and control circuit

#34
20170353120
2017-12-07

Precharge apparatus for power conversion system

#35
20170170742
2017-06-15

Charging of split DC links of a converter system

#36
20170045589
2017-02-16

Fault level estimation method for power converters

#37
20170038418
2017-02-09

METHOD FOR MONITORING DC LINK CAPACITANCE IN POWER CONVERTERS

#38
20160377060
2016-12-29

Airflow generator power supply and wind turbine generator

#39
20160308453
2016-10-20

Control apparatus for a power converter

#40
20160285379
2016-09-29

Data processing device and method for high voltage direct current transmission system

#41
20160276948
2016-09-22

Power transmission network

#42
20160268915
2016-09-15

SUBMODULE FOR MODULAR MULTI-LEVEL CONVERTER AND APPLICATION THEREOF

#43
20160248365
2016-08-25

Power converter

#44
20160248335
2016-08-25

Control method for direct power converter

#45
20160233780
2016-08-11

Method for correcting electric power loss in an HVDC system

#46
20160211761
2016-07-21

HVDC series current source converter

#47
20160204709
2016-07-14

Precharging apparatus and power converter

#48
20160172991
2016-06-16

Converter arrangement

#49
20160164448
2016-06-09

Electromagnetic compatibility filter

#50
20160164296
2016-06-09

MODULE

#51
20160156276
2016-06-02

System and method for operating power converters

#52
20160149508
2016-05-26

Insulation design apparatus of high voltage direct current transmission system

#53
20160149507
2016-05-26

System and method for unified common mode voltage injection

#54
20160146192
2016-05-26

Wind turbine power conversion system

#55
20160141969
2016-05-19

Electrical assembly

#56
20160099652
2016-04-07

HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM

#57
20160069327
2016-03-10

Wind power converter device and converter device

#58
20160036341
2016-02-04

Power grid frequency flexible operation system and method using the same

#59
20150369525
2015-12-24

Hybrid power supply device of air-conditioner

#60
20150365008
2015-12-17

POWER CONVERSION DEVICE AND CONTROL METHOD THEREFOR

#61
20150349654
2015-12-03

Voltage-adjusting device and method in power conversion system

#62
20150333651
2015-11-19

Data processing device and method for high voltage direct current transmission system

#63
20150333650
2015-11-19

Data processing device and method for high voltage direct current transmission system

#64
20150333649
2015-11-19

Modular multi-level converter controlling plurality of sub-modules

#65
20150333648
2015-11-19

High voltage direct current transmission system and control method thereof

#66
20150333647
2015-11-19

High voltage direct current transmission system and control method thereof

#67
20150333646
2015-11-19

Apparatus and method for insulation design of high voltage direct current transmission system

#68
20150333645
2015-11-19

APPARATUS AND METHOD FOR INSULATION DESIGN OF HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM

#69
20150333644
2015-11-19

APPARATUS AND METHOD FOR DESIGN OF HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM

#70
20150333643
2015-11-19

High voltage direct current (HVDC) transmission system to compensate for voltage values output from a plurality of potential transformers

#71
20150333642
2015-11-19

HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM AND CONTROLLING METHOD THEREOF

#72
20150303819
2015-10-22

System and method for power conversion

#73
20150280601
2015-10-01

Direct power conversion device and method for controlling direct power conversion device

#74
20150249400
2015-09-03

CONVERTER

#75
20150244281
2015-08-27

Converter circuit with adjustable DC bus voltage

#76
20150236606
2015-08-20

Method of controlling direct power converter

#77
20150214880
2015-07-30

Energy conversion apparatus with tuned circuit

#78
20150194901
2015-07-09

Position sensorless open loop control for motor drives with output filter and transformer

#79
20150180384
2015-06-25

Motor driving device and air conditioner including the same

#80
20150180273
2015-06-25

Optimized filter for battery energy storage on alternate energy systems

#81
20150171775
2015-06-18

Motor driving device and air conditioner including the same

#82
20150171727
2015-06-18

Motor driving device and air conditioner including the same

#83
20150145452
2015-05-28

Power converting circuit

#84
20140376282
2014-12-25

Power conversion system, and voltage detection device thereof

#85
20140362619
2014-12-11

HVDC converter system with transformer functions or arrangements integrated into a single transformer unit

#86
20140268926
2014-09-18

High voltage direct current (HVDC) converter system and method of operating the same

#87
20140145531
2014-05-29

Conducted emissions filters

#88
20140140110
2014-05-22

Switch mode power supply and method for operating the switch mode power supply

#89
20140068891
2014-03-13

POWER FACTOR CORRECTION CIRCUIT, POWER SUPPLY DEVICE AND VACUUM CLEANER USING THE SAME

#90
20140036554
2014-02-06

Power conversion with current sensing coupled through saturating element

#91
20140036553
2014-02-06

Drive train comprising a doubly fed electric machine and a band stop filter connected between an inverter and the rotor of the machine

#92
20140016379
2014-01-16

Multilevel voltage source converter and method for balancing capacitors

#93
20140001770
2014-01-02

Multiple-frequency inversion method and control apparatus for internal combustion engine driven generator

#94
20130336024
2013-12-19

Power conversion system and drive chain comprising the power conversion system

#95
20130300326
2013-11-14

Motor driving device for protecting inrush current

#96
20130279214
2013-10-24

Power regenerative converter and power conversion apparatus

#97
20120268975
2012-10-25

Power conversion with current sensing coupled through saturating element

#98
20110267851
2011-11-03

DC bus voltage control method and system

#99
20110194318
2011-08-11

Electrical power conversion apparatus

#100
20110005879
2011-01-13

Device for connecting a single-phase supply line to a three-phase power supply system

#101
20100211231
2010-08-19

Operating electrical machines from a DC link

#102
20100061128
2010-03-11

Electric power supply circuit with PAM waveform correction

#103
20090091187
2009-04-09

Device for Powering a Plurality of Loads from an Electrical Power Supply Network

#104
20080074063
2008-03-27

Operating electrical machines from a DC link

#105
20060131960
2006-06-22

Power converter

#106
15934244
2019-05-14

Feedback control for parallel power converter synchronization

#107
15614672
2018-05-01

Thyristor controlled LC compensator for compensating dynamic reactive power

#108
15595896
2018-10-23

True DC current source

#109
15288484
2017-09-19

Multibridge power converter for AC mains

#110
15288451
2017-10-10

Power converter for AC mains