Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Voltage regulation for three-phase inverters

Voltage regulation for three-phase inverters

US Patent 4799139 · Granted Jan 17, 1989

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Drive device having safety circuits using logic states for an elevator2023
Switch assembly2017
Elevator monitoring arrangement configured to monitor operation of a safety devi2017
Power supply arrangement of an elevator2013
Power supply arrangement of an elevator2013
Transportation system with capacitive energy storage and non-volatile memory for2012
Elevator reluctance linear motor drive system2001
Programmable operating panel for an elevator car1997
Frequency converter, procedure for controlling it and motor control using a freq1996
Elevator and a procedure for its control1993
Procedure for the regulation of an asynchronous motor1993
Method and apparatus for the measurement and tuning of an elevator system1991