The increasing duty cycle of the drive signal provided to {TAIL ~ the transistor switch} results in increasing virtual voltage levels being applied to {HEAD ~ the solenoid} 
The increasing duty cycle of the drive signal provided to { TAIL ~ the transistor switch } results in increasing virtual voltage levels being applied to { HEAD ~ the solenoid }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD