A control system includes a phase shift unit configured to provide a phase difference between a first switching clock signal and a second switching clock signal, a power transmission coil, a switching circuit configured to switch an input voltage based on the first switching clock signal and apply the switched voltage to the power transmission coil, a power reception coil configured to receive electric power output from the power transmission coil by electromagnetic field coupling, a wireless transmission unit configured to wirelessly transmit the second switching clock signal and output a third switching clock signal, and a rectifier circuit configured to rectify a voltage input from the power reception coil by switching the voltage based on the third switching clock signal and apply the rectified voltage to a load. A voltage input from the power reception coil to the rectifier circuit and the third switching clock signal have different phases.