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