In order that the rotor of the electric motor moves intermittently or abruptly, {HEAD ~ at least parts} of at least individual pulses are blanked by {TAIL ~ superposition} of a pulse interval having a zero voltage 
In order that the rotor of the electric motor moves intermittently or abruptly , { HEAD ~ at least parts } of at least individual pulses are blanked by { TAIL ~ superposition } of a pulse interval having a zero voltage
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH