System and method of operation of multiple screw compressors with continuously variable speed to provide noise cancellation

Smart phase lock loop

Angular position and velocity estimation for synchronous machines based on extended rotor flux

Clock and data recovery circuit

Method for the no-transmitter speed determination of an asynchronous machine

Method and system for wide-range synchronization to alternating current power signals

Drive control system for sensor-less motor

Position sensorless drive for permanent magnet synchronous motors

System, method, and computer-readable medium for reduction of commutation-related acoustic noise in a fan system