The improvement is a protective circuit comprising a speed limiting {HEAD ~ control} responsive to {TAIL ~ engine speed} to apply to the trigger of one of the switches a disabling signal to cause the switch to conduct and discharge the capacitor in response to a predetermined response speed 
responsive to
The improvement is a protective circuit comprising a speed limiting { HEAD ~ control } responsive to { TAIL ~ engine speed } to apply to the trigger of one of the switches a disabling signal to cause the switch to conduct and discharge the capacitor in response to a predetermined response speed
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH