A Single-Stage Dual-Output Tri-Mode AC-DC Regulator for Inductively Powered Application

This paper presents a one-stage AC-DC voltage regulator with dual-output for inductively powered applications. In order to maximize the circuit performances, more than one independent regulated output voltage is often required to cater for different sub-modules in a system. The typical two-stage imp...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on circuits and systems. I, Regular papers Regular papers, 2019-09, Vol.66 (9), p.3620-3630
Main Authors: Qiong Wei Low, Siek, Liter
Format: Article
Language:English
Subjects:
AC-DC Converter
Architecture
Circuits
CMOS
Converters
DC-DC power converters
Design standards
dual-output
Efficiency
Energy conversion efficiency
energy-efficient
inductively powered application
Power transistors
Rectifiers
Regulators
Single-stage
Switches
Switching converters
System on chip
Voltage
Voltage control
Voltage converters (DC to DC)
Voltage regulators
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents a one-stage AC-DC voltage regulator with dual-output for inductively powered applications. In order to maximize the circuit performances, more than one independent regulated output voltage is often required to cater for different sub-modules in a system. The typical two-stage implementation which consists of a rectifier and a multiple-output DC-DC converter limits the overall power conversion efficiency of the receiver. A new architecture which is able to rectify and regulate two or more output voltages simultaneously in a single-stage is proposed and thereby improving the overall power conversion efficiency substantially. In addition, an energy-efficient control scheme is adopted to control the multiple switches in the architecture. Since no inductor is required in the proposed one-stage conversion structure, the cross-regulation problem that used to exist in a multiple-output switching converter has been eliminated. Apart from this, it is easier to be integrated with a system-on-chip (SoC) due to its minimized footprint. The trimode dual-output design was fabricated in standard 0.18μm CMOS process. It delivers a maximum output power of 114mW. The measured peak power conversion efficiency is 91.7% at dual regulated output voltages of 1.8V and 2V.
ISSN:1549-8328
1558-0806
DOI:10.1109/TCSI.2019.2927270