This　paper　proposes　a　unified　approach　to　parameter　design,　aimed　at　achieving　load-independent　constant　current　(CC)　and　constant　voltage　(CV)　outputs　under　zero　phase　angle　(ZPA)　conditions　which　can　be　used　in　most　topologies.　A　systematic　set　of　parameter　design　techniques　has　been　developed　to　facilitate　this　goal.　This　approach　offers　high　design　flexibility,　thereby　allowing　extensive　adjustability　across　various　system　components.　This　approach　has　the　advantage　of　producing　multiple　viable　solutions　for　a　given　set　of　parameters,　distinguishing　it　from　other　methods.　To　verify　the　theoretical　analysis,　a　500W　LCC-S　compensated　wireless　power　transfer　(WPT)　system　for　battery　charging　applications　was　designed　and　manufactured.　The　system　operates　at　two　different　frequencies　enabling　both　CC　output　with　ZPA　and　CV　output　with　ZPA.　Details　of　the　hardware　design　and　laboratory　prototype　are　presented,　complemented　by　experimental　results.　　©　2024　IEEE.