{HEAD ~ The controller} 14 may be {TAIL ~ any conventional regulating pulse width modulator}, here model SG1526 manufactured by Silicon General Integrated Circuits, Inc., Westminster, Calif 
be
{ HEAD ~ The controller } 14 may be { TAIL ~ any conventional regulating pulse width modulator } , here model SG1526 manufactured by Silicon General Integrated Circuits , Inc. , Westminster , Calif
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH