COIL MODULE AND WIRELESS POWER TRANSMITTING CIRCUIT USING THE SAME

A coil module and a wireless power transmitting circuit using the same are disclosed. At least three sets of coils are configured to be connected in series and overlapped each other, which may, in one hand, increase the coupling coefficient between the power transmitting coil and the power receiving coil, and in the other hand, make the alternating magnetic field generated by the coil module more concentrated so as to reduce negative influences caused by the strayed magnetic field around the coil module.