A pulse controlled inverter 16 is connected to {TAIL ~ the intermediate circuit} 12 fed with {HEAD ~ d.c. voltage} and generates a variable frequency three phase voltage for feeding the variable speed drive motor 7 with the necessary drive energy, and has a modulation amplitude from in the vicinity of zero to the full drive setting 
A pulse controlled inverter 16 is connected to { TAIL ~ the intermediate circuit } 12 fed with { HEAD ~ d.c . voltage } and generates a variable frequency three phase voltage for feeding the variable speed drive motor 7 with the necessary drive energy , and has a modulation amplitude from in the vicinity of zero to the full drive setting
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH OTH OTH OTH OTH