| 摘要 |
A method for generating pulse width modulated (PWM) control signals from a reference waveform uses a unipolar timing waveform to modulate the reference waveform thereby avoiding the need for lock-out intervals to prevent shoot-through in power inverters supplied by the PWM control signals. Further, a sinusoidal reference waveform is approximated by a trapezoid, simplifying the computation of switching points located at intersections between the reference and timing waveforms.
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