MOTOR DRIVER HAVING START-UP DUTY CYCLE MODULATION MECHANISM

System and method for cooling power electronics of refrigerant compressors

Thyristor starter

Operating circuit for coupling a synchronous machine with a voltage network and method for operating it

Electric machine driving method and system under non-conventional work mode of oil pumping unit

Frequency converter, bypass frequency conversion control system and switching control method thereof

Variable speed maximum power point tracking, solar electric motor controller for induction and permanent magnet AC motors

Motor controller, sheet conveying device, and image forming apparatus

Control method for starting a synchronous electric motor

Connecting device for motor and supply network

Variable-speed operation control apparatus and hydroelectric power generation system

Motor control system and method with flux linkage estimation error compensation

Motor control system and method with adaptive flux linkage estimation

Motor control system and method with predictive motor current estimation

Modular multiple single-pole electromagnetic switching system and method

Apparatus for controlling inverter

Motor drive controller and control method of motor drive controller

Cooling system with increased efficiency

Thyristor starting device and control method therefor

AC motor with stator winding tap and methods for starting an AC motor with a variable speed drive

THYRISTOR STARTER

Electrical apparatus

Motor driving control device and control method of motor driving control device

Method for using an electric unit

Electric unit for a pumped-storage power plant having components within and outside of an underground cavern

Electronic circuit and method for adjusting start-up characteristics of drive signals applied to an electric motor

Systems, apparatus, and methods for soft starting large AC motors with a variable frequency drive

Method and device for starting motors in weak grids

Method and apparatus for control of a synchronous permanent magnet motor, particularly over a long cable in a well

Motor control circuit and method that reduce speed jitter of an electric motor

Energy conversion apparatus

AUTOMATIC REVERSIBLE SYNCHRONIZING SWITCHING CIRCUIT

Method for starting a synchronous machine

Controller and variable-speed generator-motor starting method

Synchronous-machine starting device

Electric power generating system with boost converter/synchronous active filter

Cooling system with increased efficiency

Method for the operation of synchronous motors, and associated device

ELECTROMECHANICAL SYSTEM HAVING A VARIABLE FREQUENCY DRIVE POWER SUPPLY FOR 3-PHASE AND 1-PHASE MOTORS

HVAC/R system with variable frequency drive power supply for three-phase and single-phase motors

Control of synchronous electrical machines

Apparatus and method for starting motor

Redundant electrical brake and protection system for electric generators

Automotive starter generator apparatus

Device and method to monitor an apparatus

Motor control apparatus