Diskretni (http://www.eleccircuit.com/wp-content/uploads/2009/08/high-current-variable-voltage-regulator-2-36v-10a.jpg) 317 HV verzija (http://3.bp.blogspot.com/_f6Eg2Cs0ozI/ShbKP6Lno4I/AAAAAAAAAeI/suIPn0w_zn8/s400/Untitled-1.jpg) (datasheet (http://www.national.com/ds/LM/LM117HV.pdf)) obrati paznju na shemu na stranici 7 datasheeta, high current adjustable regulator, to tebi treba, uz male modifikacije.