The control triggers one of {HEAD ~ the electronic switches} to conduct and discharge the capacitor in response to {TAIL ~ a predetermined response speed} 
The control triggers one of { HEAD ~ the electronic switches } to conduct and discharge the capacitor in response to { TAIL ~ a predetermined response speed }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL