Compared with the plug-in electric vehicle (EV) charger, wireless EV charging is convenient and safe due to elimination of physical contact, thus being paid more attention recently. However, misalignment issues are inevitable in wireless EV charging scenarios because of positioning error, leading to unexpected output and low efficiency performance. This paper highlights two receiver-side control schemes, phase shift control and on-off keying modulation, which can achieve precise constant current output without the necessary of wireless communication with the transmitter-side. And the circuit is simplified. The power efficiency for variance of load and output ripple are comprehensively compared with theoretical analysis and simulation results at series-series compensation converter. The proposed two control modulations schemes can obtain stable current output, but phase shift control has precise output.