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A Fully Integrated 144 MHz Wireless-Power-Receiver-on-Chip with an Adaptive Buck-Boost Regulating Rectifier and Low-Loss H-Tree Signal Distribution

  • Author(s): Kim, Chul
  • Park, Jiwoong
  • Akinin, Abraham
  • Ha, Sohmyung
  • Kubendran, Rajkumar
  • Wang, Hui
  • Mercier, Patrick
  • Cauwenberghs, Gert
  • et al.
Abstract

An adaptive buck-boost resonant regulating rectifier (B2 R3 ) with an integrated on-chip coil and low-loss H-Tree power/signal distribution is presented for efficient and robust wireless power transfer (WPT) over a wide range of input and load conditions. The B2 R3 integrated on a 9 mm2 chip powers integrated neural interfacing circuits as a load, with a TX-load power conversion efficiency of 2.64 % at 10 mm distance, resulting in a WPT system efficiency FoM of 102.

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