Nowadays, with the development of mobile appliances
such as mobile phones and laptops, as well as the recent
boom of EVs, the need for a technique to wirelessly charge
these applications has increased. Wireless power transfer is
essential in the spread of EV usage as it provides a safe and
convenient way of charging EVs. An EV has to be charged a
lot more frequently than a regular gasoline engine car as its
energy storage medium (battery or capacitor) has a much
lower energy density compared to petroleum. Therefore, a
wireless power transfer system can be used in the automatic
charging system which makes charging the EVs more
convenient. Also, as the process of plugging the power cord
into the socket will be unnecessary, the danger of being
electrocuted due to the wear and tears of an old cord, or rain
will be avoided, making the charging process safer.