Ezweni lanamuhla elithuthuke kakhulu kwezobuchwepheshe, ukuba nomthombo wamandla ozinzile kubalulekile ukuze sivikele izinto zethu ze-elekthronikhi ezibalulekile emonakalweni obangelwa ukushintshashintsha kwamandla kagesi. Yilapho kusebenza khona iziqinisi kanye nezilawuli ezizenzakalelayo ze-AC. Lapha, sizofaka futhi sihlole izici nezinzuzo zalawa madivayisi abalulekile. I-voltage regulator, eyaziwa nangokuthi i-voltage regulator, iyithuluzi eligcina ngokuzenzakalelayo i-voltage ephumayo ezinzile noma ngabe i-voltage yokufaka ishintshashintsha.