Inventor
LUKASZEWSKI RICHARD A
US27 patents
⚠️ This page may combine multiple inventors who share the name “LUKASZEWSKI RICHARD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROCKWELL AUTOMATION TECH INC
17 patentsUS7190143B2Mar 13, 2007
Pulse width modulation (PWM) rectifier with variable switching frequency
ROCKWELL AUTOMATION TECH INC99 citations98
US7356441B2Apr 8, 2008
Junction temperature prediction method and apparatus for use in a power conversion module
ROCKWELL AUTOMATION TECH INC43 citations96
US7535738B2May 19, 2009
Method and apparatus including multi-drive configurations for medium voltage loads
ROCKWELL AUTOMATION TECH INC21 citations92
US7106025B1Sep 12, 2006
Cancellation of dead time effects for reducing common mode voltages
ROCKWELL AUTOMATION TECH INC52 citations92
US7881081B1Feb 1, 2011
Systems and methods for reducing AC drive common-mode currents
ROCKWELL AUTOMATION TECH INC29 citations91
US7830036B2Nov 9, 2010
Power electronic module pre-charge system and method
ROCKWELL AUTOMATION TECH INC20 citations89
US7602622B2Oct 13, 2009
Compensator with filter for use with a three-phase drive powering a one-phase load
ROCKWELL AUTOMATION TECH INC12 citations84
US7518891B2Apr 14, 2009
Auxiliary circuit for use with three-phase drive with current source inverter powering a single-phase load
ROCKWELL AUTOMATION TECH INC18 citations84
US7502238B2Mar 10, 2009
Rectifier for reducing current harmonics from unbalanced source
ROCKWELL AUTOMATION TECH INC10 citations84
US9998030B2Jun 12, 2018
Converter lifetime improvement method for doubly fed induction generator
ROCKWELL AUTOMATION TECH INC3 citations73
US7728544B2Jun 1, 2010
System and method for controlling input line harmonics in a motor drive
ROCKWELL AUTOMATION TECH INC7 citations73
US8373406B2Feb 12, 2013
Electrical power quality test circuitry and method
ROCKWELL AUTOMATION TECH INC6 citations72
US9612269B2Apr 4, 2017
System for detection of a ground fault in a high resistance ground network
ROCKWELL AUTOMATION TECH INC4 citations70
US7477531B2Jan 13, 2009
Compensation circuit for use with a three-phase drive powering a single-phase load
ROCKWELL AUTOMATION TECH INC2 citations63
US7902957B2Mar 8, 2011
Phase change cooled electrical resistor
ROCKWELL AUTOMATION TECH INC5 citations62
US9048755B2Jun 2, 2015
Adjustable speed drive lifetime improvement system
ROCKWELL AUTOMATION TECH INC1 citations52
US10217555B2Feb 26, 2019
Compact inductor
ROCKWELL AUTOMATION TECH INC0 citations41
WEI LIXIANG
7 patentsUS8188693B2May 29, 2012
DC bus boost method and system for regenerative brake
WEI LIXIANG17 citations92
US8841917B2Sep 23, 2014
Ground scheme identification method
WEI LIXIANG17 citations83
US8698504B2Apr 15, 2014
System for detection of a ground fault in a high resistance ground network
WEI LIXIANG7 citations81
US8148929B2Apr 3, 2012
Power electronic module IGBT protection method and system
WEI LIXIANG11 citations81
US8736091B2May 27, 2014
Converter lifetime improvement method for doubly fed induction generator
WEI LIXIANG4 citations73
US8471516B2Jun 25, 2013
Adjustable speed drive lifetime improvement method
WEI LIXIANG3 citations63
US8519655B2Aug 27, 2013
DC bus boost method and system for regenerative brake
WEI LIXIANG0 citations51