Offset PWM signals for multiphase motor
On-site electric motor start-up diagnostic tool
On-site electric motor start-up diagnostic tool
One switch multi-phase modulator
Open loop motor control with both voltage and current regulation
Operating circuit including an oscillating circuit capacitor cou
Operating control device and method for wound-rotor induction ma
Operation control apparatus for AC motors
Operation control apparatus for AC motors
Operation control apparatus for escalator
Operation control circuit for pump motor
Optimal power supply for an electric motor
Optimum efficiency control system
Origin offset calculation method of rotational position...
Oscillation adjuster and oscillation adjusting method
Overcurrent protection device
Overheat preventing system of A.C. motor
Overmodulation systems and methods for induction motor control
Overtemperature speed control for a variable speed drive
Overvoltage suppression technique for variable frequency...