{HEAD ~ The power converter} has at least one switch that is operated at a switching frequency that results in switch current flows through {TAIL ~ the switch} 
{ HEAD ~ The power converter } has at least one switch that is operated at a switching frequency that results in switch current flows through { TAIL ~ the switch }
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 TAIL TAIL TAIL TAIL TAIL TAIL