Title :
A fully integrated AC-DC regulator over wide frequency range for implantable bio-medical devices
Author :
Qi Cheng ; Liuyan Chen ; Jianping Guo
Author_Institution :
Sch. of Phys. & Eng., Sun Yat-sen Univ., Guangzhou, China
Abstract :
A fully integrated AC-DC regulator with high power conversion efficiency (PCE) is proposed in this paper. It combines the traditional rectifier and regulator together, which reduces the total output capacitance and improves the PCE. The AC-DC regulator outputs a clean DC voltage and achieves a simulated PCE of 80% at 13.56 MHz under conditions of a 1.8-vpp AC input with a 500-Ω load resistor. The circuit was implemented with 0.18-μm CMOS technology and 0.6-mm2 chip area was estimated.
Keywords :
AC-DC power convertors; CMOS integrated circuits; biomedical equipment; capacitance; rectifiers; resistors; voltage control; AC-DC rectifier; CMOS technology; DC voltage; frequency 13.56 MHz; fully integrated AC-DC regulator; high PCE; high power conversion efficiency; implantable biomedical device; load resistor; resistance 500 ohm; size 0.18 mum; total output capacitance; voltage 1.8 V; Capacitors; Radio frequency; Rectifiers; Regulators; Switches; Tablet computers; AC-DC regulator; bio-medical; power conversion efficiency (PCE); rectifier; wireless power transfer (WPT);
Conference_Titel :
SoC Design Conference (ISOCC), 2014 International
DOI :
10.1109/ISOCC.2014.7087586
