SBW gawo zitatu AC voltage stabilizer ndi cholumikizira chosinthika cha voltage yodziyimira yokha. Chipangizo chamagetsi chowongolera mphamvu yayikulu. Voltage yochokera ku netiweki yothandizira ikasintha chifukwa cha kukweza mphamvu, imayang'anira yokha voltage yotulutsa kuti iwonetsetse kuti zida zamagetsi zosiyanasiyana zikugwira ntchito bwino. Chogulitsachi poyerekeza ndi mitundu ina ya voltage controller, chili ndi mphamvu yayikulu, chogwira ntchito bwino kwambiri, sichimasintha mawonekedwe a mafunde, chimawongolera mphamvu yokhazikika komanso zabwino zina, chimathandizira kuyikidwa kwambiri, chimayimirira pafupi ndi kudzaza nthawi yomweyo komanso kugwira ntchito nthawi yayitali, chosinthira chamanja, chimatha kupereka mphamvu yochulukirapo, kusowa kwa dongosolo la phasephase ndi cholakwika cha makina chimateteza zokha. Kusonkhanitsa mosavuta komanso kugwira ntchito modalirika (kungapangidwe chiwonetsero cha digito/chiwonetsero cha analog)