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

fYear

2014

Firstpage

44

Lastpage

45

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);

fLanguage

English

Publisher

ieee

Conference_Titel

SoC Design Conference (ISOCC), 2014 International

Type

conf

DOI

10.1109/ISOCC.2014.7087586

Filename

7087586