Abstract
Mobile devices are not sufficiently convenient yet because they need to be charged frequently. It is especially inconvenient when their battery power has slightly discharged. We have researched a contactless power transmission system (CLPS) for a station-type charger in mobile devices. This system can be installed in many types of mobile devices. We tested the transmission system of the station-type charger using a coil within a mobile device and confirmed that the system was effective and provided steady transmission of electrical power.