ClassID:

217887

H02M5/271 - 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 without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means for conversion of frequency from a three phase input voltage

Recent Application in this class:
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Method for operating a converter, converter and computer program product

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Motor control device and motor control method

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AC-to-AC MMC with reduced number of converter arms

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20220069724
2022-03-03

Bidirectional power conversion

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20210226551
2021-07-22

Overvoltage clamp for a matrix converter

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20210152106
2021-05-20

SYNCHRONOUS INVERTER

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20200290470
2020-09-17

Intelligent current control apparatus

#8
20190157875
2019-05-23

Phase converter for vector conversion of three phase signals

#9
20190074779
2019-03-07

Synchronous inverter

#10
20180269795
2018-09-20

BIDIRECTIONAL RESONANT CONVERSION CIRCUIT AND CONVERTER

#11
20180167002
2018-06-14

Synchronous inverter

#12
20180062291
2018-03-01

Device and method for integrating an electrical element into an electrical circuit under load

#13
20180054124
2018-02-22

Multiphase power converter

#14
20170310217
2017-10-26

MULTI-PHASE SWITCHED POWER CONVERTER

#15
20170110991
2017-04-20

Hybrid device with segmented waveform converter

#16
20170063192
2017-03-02

Electro-mechanical kinetic energy storage device and method of operation

#17
20160094140
2016-03-31

Matrix convertor, power generation system, and method for converting power with control command generation

#18
20150249399
2015-09-03

Power frequency converter and associated method

#19
20140049110
2014-02-20

Matrix converter and method for generating an AC voltage in a second AC voltage grid from an AC voltage in a first AC voltage grid by means of a matrix converter

#20
20130285491
2013-10-31

Electro-mechanical kinetic energy storage device and method of operation

#21
20130201738
2013-08-08

Power factor control of a cyclo-converter

#22
20130194844
2013-08-01

Closed loop control of a cyclo-converter

#23
20130194840
2013-08-01

Redundancy structures for static converters

#24
20130148395
2013-06-13

Converter

#25
20120020021
2012-01-26

Matrix converter

#26
20110131796
2011-06-09

Method for re-powering a star-connected stator

#27
20110075465
2011-03-31

Direct converter and system including a direct converter

#28
20110043273
2011-02-24

Pulse width modulation control of a matrix converter

#29
20100244570
2010-09-30

Power conversion device

#30
20100067264
2010-03-18

Power conversion apparatus

#31
20100014325
2010-01-21

AC-AC converter with high frequency link

#32
20090279338
2009-11-12

Cycloconverter generator

#33
20090278362
2009-11-12

Cycloconverter generator

#34
20090015992
2009-01-15

Power conversion apparatus

#35
20080290845
2008-11-27

Charge-transfer apparatus and method

#36
20080285314
2008-11-20

Advanced matrix converter and method for operation

#37
20080247211
2008-10-09

Active generator control sequence

#38
20080079400
2008-04-03

Generator with high phase order

#39
20080055953
2008-03-06

Matrix converter

#40
20080049469
2008-02-28

Control method for direct power converter

#41
20080049460
2008-02-28

Open-ended control circuit for electrical apparatus

#42
20080037190
2008-02-14

Converter topology and methods for interfacing an electrical machine to electrical power grid

#43
20070268728
2007-11-22

Carrier-based pulse-width modulation (PWM) control for matrix converters

#44
20070086221
2007-04-19

Power converter methods and apparatus for variable speed high power machines

#45
20070081369
2007-04-12

PWM cycloconverter

#46
20060227483
2006-10-12

Filter device

#47
20060208707
2006-09-21

Method for use of charge-transfer apparatus

#48
20060146454
2006-07-06

Direct turbogenerator

#49
20050237774
2005-10-27

Bi-directional matrix converter with reverse start-up

#50
20050219874
2005-10-06

Method for improving the mode of operation of a matrix converter

#51
20050168897
2005-08-04

Charging of a filter capacitor in the intermediate circuit of a frequency converter

#52
20050088861
2005-04-28

Harmonic neutralized frequency changer

#53
20050083716
2005-04-21

Power supply with a direct converter

#54
20050052808
2005-03-10

System and method utilizing a solid state power controller (SSPC) for controlling an electrical load of a variable frequency three-phase power source

#55
20050047044
2005-03-03

Multiphase reduced voltage starter with bypass relays, interphase electrical isolation and shared thermal mass

#56
20050041443
2005-02-24

Voltage source converter

#57
17214408
2022-06-28

Phase balancer including power conversion circuits

#58
16362533
2020-03-17

Matrix converter operating in current control mode using feed forward signals

#59
16270318
2020-05-19

Alternating current bussing connector