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