A power interruption circuit senses when the source power supply Vcc voltage level is too low or turned off, thereafter initiating a reconfiguration back to line to line mode, wherein the highest voltage pair of {TAIL ~ motor windings} are electrically held across {HEAD ~ the source power supply Vcc lines} 
A power interruption circuit senses when the source power supply Vcc voltage level is too low or turned off , thereafter initiating a reconfiguration back to line to line mode , wherein the highest voltage pair of { TAIL ~ motor windings } are electrically held across { HEAD ~ the source power supply Vcc lines }
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