a semiconductor power switch coupled for controlling {HEAD ~ energy flow} from {TAIL ~ the input} means to the output means and including first and second main conduction path electrodes and a control electrode for controlling current flow in a main conduction path of the power switch, 
a semiconductor power switch coupled for controlling { HEAD ~ energy flow } from { TAIL ~ the input } means to the output means and including first and second main conduction path electrodes and a control electrode for controlling current flow in a main conduction path of the power switch ,
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL 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