Advantages of Sumitomo Electric’s wireless charging module
Replacing the conventional coil used in an antenna with an FPC enabled the module to achieve industry’s top compactness and slimness.
FPCs can be used as both receiving and transmitting antennas. The pliability of the FPC antennas enables the module to be mounted in a U-shaped or other bent space, in which a conventional module with a coil antenna could not be used.
Sumitomo Electric’s wireless charging module uses an electromagnetic induction power supply.*1 Misalignments in electromagnetic induction devices lower the transmission efficiency and can cause overheating. As a countermeasure, Sumitomo Electric installed a power supply control function linked to a temperature monitor and automatically stops power transmission in the event of an abnormal temperature rise.
Sumitomo Electric manages the entire process?from design of the module to its production. Device downsizing requires sophisticated design considering the balance between transmission and reception modules. We offer a set of a transmitting module and receiving module that satisfy this requirement.
*1Electromagnetic induction is a type of wireless power transmission, to transfer electrical energy from the supply side through the air to a receiving device, thereby induces magnetic flux and makes current flow.