Inventor
LIPO THOMAS A
US46 patents
⚠️ This page may combine multiple inventors who share the name “LIPO THOMAS A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WISCONSIN ALUMNI RES FOUND
24 patentsUS6031738AFeb 29, 2000
DC bus voltage balancing and control in multilevel inverters
WISCONSIN ALUMNI RES FOUND306 citations99
US6995992B2Feb 7, 2006
Dual bridge matrix converter
WISCONSIN ALUMNI RES FOUND70 citations98
US6924574B2Aug 2, 2005
Dual-rotor, radial-flux, toroidally-wound, permanent-magnet machine
WISCONSIN ALUMNI RES FOUND114 citations98
US5852558ADec 22, 1998
Method and apparatus for reducing common mode voltage in multi-phase power converters
WISCONSIN ALUMNI RES FOUND166 citations98
US5272429ADec 21, 1993
Air gap flux measurement using stator third harmonic voltage and uses
WISCONSIN ALUMNI RES FOUND152 citations98
US5510689AApr 23, 1996
Air gap flux measurement using stator third harmonic voltage
WISCONSIN ALUMNI RES FOUND67 citations96
US5334923AAug 2, 1994
Motor torque control method and apparatus
WISCONSIN ALUMNI RES FOUND206 citations96
US4724373AFeb 9, 1988
Method and apparatus for flux and torque sensing in electrical machines
WISCONSIN ALUMNI RES FOUND73 citations96
US5010267AApr 23, 1991
Variable speed machine with high power density
WISCONSIN ALUMNI RES FOUND69 citations95
US4942511AJul 17, 1990
Static power conversion apparatus using a high frequency series resonant DC link
WISCONSIN ALUMNI RES FOUND63 citations95
US6005788ADec 21, 1999
Hybrid topology for multilevel power conversion
WISCONSIN ALUMNI RES FOUND230 citations94
US6710495B2Mar 23, 2004
Multi-phase electric motor with third harmonic current injection
WISCONSIN ALUMNI RES FOUND96 citations93
US6242884B1Jun 5, 2001
Dual stator winding induction machine drive
WISCONSIN ALUMNI RES FOUND104 citations93
US4573003AFeb 25, 1986
AC Machine optimized for converter operation
WISCONSIN ALUMNI RES FOUND48 citations93
US6570778B2May 27, 2003
Adjustable speed drive for single-phase induction motors
WISCONSIN ALUMNI RES FOUND77 citations92
US5949664ASep 7, 1999
Current stiff converters with resonant snubbers
WISCONSIN ALUMNI RES FOUND84 citations92
US7608965B2Oct 27, 2009
Field controlled axial flux permanent magnet electrical machine
WISCONSIN ALUMNI RES FOUND12 citations78
US7006366B2Feb 28, 2006
Boost rectifier with half-power rated semiconductor devices
WISCONSIN ALUMNI RES FOUND18 citations77
US9595858B2Mar 14, 2017
Double air gap, spoke type vernier machine
WISCONSIN ALUMNI RES FOUND8 citations76
US10594179B2Mar 17, 2020
Alternating flux barrier air gap in a spoke type machine
WISCONSIN ALUMNI RES FOUND6 citations73
US10003228B2Jun 19, 2018
Interior permanent magnet machine with axially varying permanent magnet size
WISCONSIN ALUMNI RES FOUND3 citations66
US9379657B2Jun 28, 2016
Unity power factor induction machine
WISCONSIN ALUMNI RES FOUND4 citations65
US10886801B2Jan 5, 2021
Vernier machine with shaped permanent magnet groups
WISCONSIN ALUMNI RES FOUND0 citations52
US10784727B2Sep 22, 2020
Salient pole, wound field, synchronous machine with enhanced saliency
WISCONSIN ALUMNI RES FOUND0 citations42
ELECTRIC POWER RES INST
11 patentsUS5672925ASep 30, 1997
Doubly salient variable reluctance machine with stationary permanent magnets or auxiliary field windings
ELECTRIC POWER RES INST127 citations97
US5304882AApr 19, 1994
Variable reluctance motors with permanent magnet excitation
ELECTRIC POWER RES INST113 citations97
US5825113AOct 20, 1998
Doubly salient permanent magnet machine with field weakening (or boosting) capability
ELECTRIC POWER RES INST88 citations96
US5825112AOct 20, 1998
Doubly salient motor with stationary permanent magnets
ELECTRIC POWER RES INST66 citations96
US5455473AOct 3, 1995
Field weakening for a doubly salient motor with stator permanent magnets
ELECTRIC POWER RES INST63 citations96
US5661390AAug 26, 1997
Inverter-fed motor drive with EMI suppression
ELECTRIC POWER RES INST101 citations93
US5650707AJul 22, 1997
Inverter-controlled induction machine with an extended speed range
ELECTRIC POWER RES INST44 citations93
US5459385AOct 17, 1995
Variable reluctance drive system
ELECTRIC POWER RES INST42 citations93
US5376851ADec 27, 1994
Variable reluctance motor with full and short pitch windings
ELECTRIC POWER RES INST35 citations93
US5841644ANov 24, 1998
Passively clamped quasi-resonant DC link converters
ELECTRIC POWER RES INST27 citations92
US5870292AFeb 9, 1999
Series resonant converter for switched reluctance motor drive
ELECTRIC POWER RES INST10 citations73
GEN ELECTRIC
5 patentsUS4137489AJan 30, 1979
Feedback control for reduction of cogging torque in controlled current AC motor drives
GEN ELECTRIC55 citations96
US4455522AJun 19, 1984
Current source inverter bed induction motor drive
GEN ELECTRIC38 citations93
US4112339ASep 5, 1978
Measurement of pulsating torque in a current source inverter motor drive
GEN ELECTRIC20 citations82
US4019105AApr 19, 1977
Controlled current induction motor drive
GEN ELECTRIC30 citations81
US4001660AJan 4, 1977
Regulating the torque of an induction motor
GEN ELECTRIC16 citations74