An　advanced　digital　predictive　valley　current　control　algorithm　for　a　boost　converter　is　proposed.　The　control　algorithm　predicts　the　inductor　current　in　a　future　period　by　sampling　the　voltages　including　input　and　output,　and　inductor　current　of　the　current　period,　which　overcomes　the　problem　of　hardware　periodic　delay.　Under　the　premise　of　ensuring　the　stability　of　the　system,　the　control　algorithm　has　a　faster　response　speed　as　compared　to　the　traditional　digital　proportional-integral　(PI)　control　algorithm.　In　addition,　it　is　not　only　algorithm　simple,　but　also　easy　to　implement　on　DSP　of　digital　control　chips.　Finally,　the　proposed　control　algorithm　is　verified　using　simulations　software　and　experimental　measurements.　©　Published　under　licence　by　IOP　Publishing　Ltd.