David Dewei Xu

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Pickering, CA

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Patents Grantslast 30 patents

Information Patent Grant
Modular multilevel converter and charging circuit therefor
- Patent number 9,559,541
- Issue date Jan 31, 2017
- Rockwell Automation Technologies, Inc.
- Zhongyuan Cheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multilevel converter systems and methods with reduced common mode v...
- Patent number 9,520,800
- Issue date Dec 13, 2016
- Rockwell Automation Technologies, Inc.
- Kai Tian
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Low cost current source converters for power generation application
- Patent number 8,698,335
- Issue date Apr 15, 2014
- Rockwell Automation Technologies, Inc.
- Jingya Dai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multi-phase power converters and integrated choke therfor
- Patent number 8,653,931
- Issue date Feb 18, 2014
- Rockwell Automation Technologies, Inc.
- David Dewei Xu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Grid fault ride-through for current source converter-based wind ene...
- Patent number 8,587,160
- Issue date Nov 19, 2013
- Rockwell Automation Technologies, Inc.
- Jingya Dai
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...

Patents Applicationslast 30 patents

Information Patent Application
MODULAR MULTILEVEL CONVERTER AND CHARGING CIRCUIT THEREFOR
- Publication number 20160211762
- Publication date Jul 21, 2016
- Rockwell Automation Technologies, Inc.
- Zhongyuan Cheng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MULTILEVEL CONVERTER SYSTEMS AND METHODS WITH REDUCED COMMON MODE V...
- Publication number 20150194902
- Publication date Jul 9, 2015
- Rockwell Automation Technologies, Inc.
- Kai Tian
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MULTI-PHASE POWER CONVERTERS AND INTEGRATED CHOKE THERFOR
- Publication number 20120106210
- Publication date May 3, 2012
- ROCKWELL AUTOMATION TECHNOLOGIES, INC.
- David Dewei XU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LOW COST CURRENT SOURCE CONVERTERS FOR POWER GENERATION APPLICATION
- Publication number 20110310642
- Publication date Dec 22, 2011
- Rockwell Automation Technologies, Inc.
- Jingya Dai
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
GRID FAULT RIDE-THROUGH FOR CURRENT SOURCE CONVERTER-BASED WIND ENE...
- Publication number 20110057444
- Publication date Mar 10, 2011
- ROCKWELL AUTOMATION TECHNOLOGIES, INC.
- Jingya Dai
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...