Assignee
ROBICON CORP
US17 patents
Top patents by PatentIndex Score
US6301130B1Oct 9, 2001
Modular multi-level adjustable supply with parallel connected active inputs
ROBICON CORP162 citations98
US6236580B1May 22, 2001
Modular multi-level adjustable supply with series connected active inputs
ROBICON CORP194 citations98
US6087738AJul 11, 2000
Variable output three-phase transformer
ROBICON CORP205 citations98
US5986909ANov 16, 1999
Multiphase power supply with plural series connected cells and failed cell bypass
ROBICON CORP397 citations98
US6417644B2Jul 9, 2002
Apparatus and method to generate braking torque in an AC drive
ROBICON CORP47 citations96
US6262555B1Jul 17, 2001
Apparatus and method to generate braking torque in an AC drive
ROBICON CORP76 citations96
US6222284B1Apr 24, 2001
Multiphase power supply with series connected power cells with failed cell bypass
ROBICON CORP79 citations96
US6166513ADec 26, 2000
Four-quadrant AC-AC drive and method
ROBICON CORP85 citations96
US6014323AJan 11, 2000
Multiphase power converter
ROBICON CORP155 citations96
US5905642AMay 18, 1999
Apparatus and method to reduce common mode voltage from current source drives
ROBICON CORP89 citations96
US5619407AApr 8, 1997
Autotransformer
ROBICON CORP97 citations96
US6762947B2Jul 13, 2004
Control method and apparatus to reduce current through DC capacitor linking two static converters
ROBICON CORP32 citations92
US6472851B2Oct 29, 2002
Hybrid tap-changing transformer with full range of control and high resolution
ROBICON CORP22 citations92
US6411530B2Jun 25, 2002
Drive and power supply with phase shifted carriers
ROBICON CORP45 citations92
US6313600B1Nov 6, 2001
Control method and apparatus for insufficient input voltage in an AC drive
ROBICON CORP71 citations91
US3938031AFeb 10, 1976
Adjustable voltage power supply
ROBICON CORP15 citations60
US4029888AJun 14, 1977
Arc furnace control system
ROBICON CORP13 citations59