HIGHER-EFFECTIVENESS VFD CONTROL PANELS FOR SPECIFIC INDUSTRIAL MOTOR VELOCITY REGULATION

voltage pulses of various lengths to simulate a sinusoidal wave. Preferably, the pulses are timed so the time regular integral of the drive yields a great sinusoid. The existing approach to alternative to produce this waveform runs a triangle wave and sine wave through a comparator, and outputs a voltage pulse Each time the sine wave’s worth is l