hi... now I am in progress to do a wireless charger pad by using coil. so I've seen a lot of project regarding to this wireless charging. do u have any idea how can i make it more efficiency? meaning that how can i get a maximum power transfer while transferring the power from Tx to Rx. normally i see all the project only can achieve until 57% from the actual charger by using all those clumsiness wires charger... hope u can give me any suggestion or idea .thanks.