2 results about "Pulse width modulation inverter" patented technology

A controller is provided for generating a carrier signal that controls a pulse width modulation (PWM) inverter that drives an electric actuator. The controller includes: an interface configured to connect to a sensitive device circuit via a sensor, where the sensitive device circuit includes a power system or an electric actuator, or a combination of a power system and an electric actuator, where the sensor is configured to measure an electromagnetic interference (EMI) spectrum; a memory configured to store a modulation band, measured electromagnetic interference (EMI) spectrum data for different frequency carriers, a desired EMI spectrum, and a learning-based carrier design program; a processor connected with the memory and configured to perform: generating a frequency modulated (FM) carrier signal by solving an optimization problem generated by a learned carrier design program with respect to a scan time for a predetermined frequency; and a PWM generator configured to generate a PWM signal based on the FM carrier signal.