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