In　electric　vehicles　(EVs),　the　wireless　charging　system　(WCS)　for　the　high-voltage　(HV)　power　battery　and　the　auxiliary　power　module　(APM)　for　the　low-voltage　(LV)　auxiliary　battery　possess　some　similar　power　conversion　stages.　This　letter　proposes　an　integrated　solution　for　WCS　and　APM　with　the　shared　magnetic　coupler,　compensation　network,　and　power　electronics　converter.　The　coupling　coil　for　APM　is　incorporated　with　reverse　windings　so　as　to　couple　with　the　receiving　coil　but　decouple　with　the　transmitting　coil　of　the　WCS　system.　Thus,　it　forms　magnetic　couplers　for　APM.　The　proposed　system　can　work　in　the　mode　where　WCS　and　APM　are　in　operation　with　power　from　the　power　grid,　or　in　the　mode　where　APM　is　in　operation　with　power　from　the　HV　battery　to　the　LV　battery.　The　integration　of　WCS　and　APM　can　reduce　its　weight　and　cost　and　improve　the　power　density　of　the　EV　charging　system.　The　experimental　results　have　proved　the　effectiveness　of　the　proposal.