Qualcomm announced this afternoon that it has developed a technology that allows for wireless charging of phones with metal rear cases. According to The Verge, not much details were given as to how the technology will work but its design is meant to be compatible with the Rezence standard. This is good news for manufacturers of metal phones like HTC whose default materials were not compatible for wireless charging.
Wireless charging also called inductive charging is used to transfer energy between two objects with the help of an electromagnetic field. This can be achieved with a charging station. With Inductive coupling, energy is sent to an electrical device, which can then use that energy to charge batteries or run the device.
The solution and the full suite of WiPower reference designs are available starting today to WiPower licensees, it retains WiPower’s current ability to charge devices requiring up to 22 watts.
WiPower is based on Near Field Magnetic Resonance technology which allows for greater flexibility and convenience in wireless charging, it also enables simultaneous charging of multiple devices with different power requirements using Bluetooth Smart in order to limit hardware requirements.
You can watch the Qualcomm video below.