12.9 A fully integrated 6W wireless power receiver operating at 6.78MHz with magnetic resonance coupling. - Kyung-Goo Moti; Filippo Neri; Sungwoo Moon; Pyeongwoo Yeon; Jinhyuck Yu; Youso Cheon; Yong-Seong Roh; Myeonglyong Ko; Byeong-Ha Park (ISSCC, 2015)