Suppose we have a sinusoidal voltage signal, for any reason (for example, using the hash load is signaling devices, the device changes the frequency, or the rectifier device, the load is not linear ...) of the signal waveform distortion has now, it is defined harmonic interference or pressure line with a fixed cycle, and a function that has a fixed cycle T Fourier analysis as follows:
đang được dịch, vui lòng đợi..
