AC MOTOR SOLID STATE SWITCH CONTROL

摘要

A method is provided for reducing inrush currents through power switches used to turn on an AC motor. The power switches may be solid state switches that connect the motor to an AC power supply to rotate the motor. The method delays closing the switches after receiving a signal to turn the motor on. The waveform of the power supply is monitored before closing the power switches that turn on the motor in order to reduce initial current fed through the solid state switches.