• Sharan S
• Shashanka Holla K P
• Sricharan Srinivasa
• Nagesh Kumar D N

With an ongoing trend in standardization of mobile charger, the upcoming challenge is to make the mobile charger truly wireless and efficient as the wired charger. Wireless Power Transfer (WPT) is a system used to transfer power between two or more devices which are physically unconnected. This helps in increasing the degree of flexibility device movement. WPT comprises two main types which are Inductive Power Transfer (IPT), Capacitive Power Transfer (CPT). The most popular technique in the WPT technology is IPT which is used in most of the applications nowadays. However, the major drawback of IPT is that, the flux cannot pass through magnetisable materials. CPT have the ability of metal penetration and the potential to reduce Electro-Magnetic Interference (EMI) that will overcome the problems in IPT.As IPT system is loosely coupled, high frequency magnetic cores are often used, to enhance the coupling between the primary and secondary coils, which results in bulky and costly system. Instead of using IPT, an alternative way to achieve wireless power transfer is to use Capacitive Power Transfer (CPT). Capacitive Power Transfer system (CPT) is an emerging field and the most studied area in wireless power transfer. CPT system uses two metal plates separated by air as dielectric to transfer power. Compared to IPT, Electro-Magnetic Interference can be minimized by using CPT. Here, a Capacitively Coupled Power Transfer (CCPT) system has been investigated for transferring power across two pairs of separate capacitors.

Wireless Power Transfer (WPT), Capacitively Coupled Power Transfer (CCPT),

"A Capacitively Coupled Wireless Power Transfer System For Mobile Charging", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 6, page no.1263-1268, June-2020, Available :http://www.jetir.org/papers/JETIR2006181.pdf

"A Capacitively Coupled Wireless Power Transfer System For Mobile Charging", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 6, page no. pp1263-1268, June-2020, Available at : http://www.jetir.org/papers/JETIR2006181.pdf