STATE-OF-THE-ART VFD PANELS FOR OPTIMIZING ELECTRICAL MOTOR SPEED IN UAE PROGRAMS

voltage pulses of different lengths to simulate a sinusoidal wave. Ideally, the pulses are timed so that the time average integral on the drive yields a wonderful sinusoid. The present approach to alternative to provide this waveform operates a triangle wave and sine wave via a comparator, and outputs a voltage pulse Every time the sine wave’s be