Planar inductor charger for portable electronic equipment

Abstract

The theory of coreless PCB transformers for signal and energy transfer has been developed for few years ago and recently, many professional papers has proven and demonstrated the possibility of electrical energy can be transmitted without electrical connection or physical contact. These discoveries further speeded up the development of the planar inductor charger. Nowadays, most portable equipment are connected to the supply with plugs and sockets for charging energy. This is a generally accepted method that we used for many years, but it is indeed somehow incontinent to carry and in economic concern it is a cost burden for portable devices manufacturers. The planar inductor charger is suitable for applications with a wide input and load range and shown distinct advantages over the traditional charging devices which use wires and connectors. For example, The planar inductor charger can be used for charging mobile phones, PDA, computer notebook, MP3 and other hand-held electronics of the future. Because of the safety, reliability, and convenience, there are great reasons and potential to develop it and make it widely use in our daily life. In this project, the theory of the coreless PCB transformers will be studied and the planar inductor charging system will be designed and implemented for charging portable electronic devices. Furthermore, a series of experiments will be conducted to investigate the characteristics and performance of the charger, in order to improve its charging capability.