Thereafter, the rectifying circuit rectifies {HEAD ~ the intermediate currents current} to produce {TAIL ~ a rectified current} 
Thereafter , the rectifying circuit rectifies { HEAD ~ the intermediate currents current } to produce { TAIL ~ a rectified current }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL