Shows asquare-waveform current that has been generated by a converter. The Fourierseries of the waveform can be calculated by where, n is an odd...

Shows asquare-waveform current that has been generated by a converter. The Fourierseries of the waveform can be calculated by where, n is an odd number, f=60 Hz.  aThe fundamental component of the current I1,rms  b The total RMS value ofthe square-wave. C The total harmonic distortion THD of the current. dThek rating of a transformer connected to the converter, assuming that theharmonic current contents diminish after the 9th harmonic.

also see the attachement