Production method of phase-based pulse width modulated sinusoidal voltage waveform data
A pulse width modulation, waveform data technology, applied in electrical components, output power conversion devices, conversion of AC power input to DC power output, etc., can solve the complex sinusoidal voltage pulse width modulation wave, reduce reliability, wrong waveform, etc. problems, to achieve the effect of intuitive and simple control, complete control functions and good performance
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[0025] figure 1 The principle block diagram of the generation method of the sinusoidal voltage pulse width modulation waveform data based on the phase of the present invention is provided, and further in conjunction with the principle block diagram, each step of the method of the present invention is described in detail as follows:
[0026]1. The signal sig input to the frequency measurement part is a square wave pulse signal whose frequency is K times the frequency F of the fundamental wave component of the sinusoidal voltage pulse width modulation wave. Take K=(0.01~10)×N S , where N S is the number of phase sampling points in each fundamental cycle of the sinusoidal voltage PWM wave, or N S is the number of calculation and judgment of PWM wave data in each fundamental wave cycle, N S is a positive integer, and N S The larger the value, the higher the precision of the pulse data. There is a fixed clock signal clk in the frequency measurement part, and its frequency is F...
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