The signal processing system shifts pulse edges of {HEAD ~ PWM patterns} to spread {TAIL ~ the spectrum} of intra channel and inter channel harmonic frequencies 
to spread
The signal processing system shifts pulse edges of { HEAD ~ PWM patterns } to spread { TAIL ~ the spectrum } of intra channel and inter channel harmonic frequencies
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH