NDLI: Current-Mode Synthetic Control Technique for High-Efficiency DC–DC Boost Converters Over a Wide Load Range

Content Provider	IEEE Xplore Digital Library
Author	Yi-Ping Su Yean-Kuo Luo Yi-Chun Chen Ke-Horng Chen
Copyright Year	1993
Abstract	This paper proposes a current-mode synthetic control (CSC) technique for the design of boost converters to overcome the difficulty in designing a current-ripple hysteresis boost converter and to maintain high conversion efficiency over a wide load range. The CSC technique has a high accuracy because of the additional voltage path through the error amplifier. A smooth load transient response is maintained when the operation transits from continuous conduction mode with a nearly constant switching frequency to discontinuous conduction mode with a load-dependent switching frequency. Generally, ripple performance, light-load efficiency, and switching frequency are traded off in the design of hysteresis control regulator. In this paper, a balance among the load-dependent switching frequencies at light loads results in high power conversion efficiency compared with conventional pulsewidth modulation converter and attains compact ripple performance. The experimental results show that the output voltage ripple can be kept ${<;}{\rm 50}~{\rm mV}$ over a wide load current range from 10 to 400 mA, where as power conversion efficiency is maintained at 78% at a load current of 10 mA when the switching frequency is decreased from 5 to 2 MHz.
Sponsorship	IEEE Computer Society Association for Computing Machinery (ACM)/SIGDA IEEE Computer Society Technical Committee on Design Automation
Starting Page	1666
Ending Page	1678
Page Count	13
File Size	3039741
File Format	PDF
ISSN	10638210
Volume Number	22
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Switching frequency Hysteresis Inductors Switches Capacitors Clocks Noise hysteresis control regulator. Boost converter current-mode synthetic control (CSC) hysteresis control regulator
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Software Hardware and Architecture

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