STATE-OF-THE-ART VFD CONTROL PANELS FOR PRICE-EFFECTIVE MOTOR VELOCITY REGULATION IN UAE INDUSTRIES

voltage pulses of different lengths to simulate a sinusoidal wave. Preferably, the pulses are timed so the time average integral with the generate yields an ideal sinusoid. The present method of preference to generate this waveform runs a triangle wave and sine wave by way of a comparator, and outputs a voltage pulse whenever the sine wave’s pric