WIRELESS CHARGING SYSTEM CONTROLLING CHARGING POWER TO A MOBILE DEVICE BASED ON MATERIALS USED IN A COVER AND/OR WIRELESS CHARGING SURFACE

A wireless charger for a mobile device includes a coil arranged adjacent to a charging surface. A power conversion module is configured to selectively supply power from a power source to the coil to wirelessly charge the mobile device. A temperature sensor is configured to sense a temperature at the charging surface of the wireless charger. A material sensor is configured to sense a material of a cover of the mobile. A communications and control module is configured to control wireless charging of the mobile device based on the sensed temperature and a temperature range selected in response to the sensed material of the cover of the mobile device.