DocumentCode :
991600
Title :
Application of novel D2T control to single-switch two-output switching power converters
Author :
Wong, Siu-Chung ; Tse, Chi K.
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., China
Volume :
20
Issue :
4
fYear :
2005
fDate :
7/1/2005 12:00:00 AM
Firstpage :
870
Lastpage :
876
Abstract :
A novel method for programming current in dc/dc converters operating in discontinuous conduction mode is described in this paper. The control variable is the product of the square of the duty cyle and the switching period, i.e., D2T, which is directly proportional to input and output currents of a discontinuous-mode converter. A method of controlling D2T is applied to converters that utilize one switch (or one set of synchronous switches) for achieving two control functions. In particular a single-switch two-output boost converter, in which a continuous-mode converter and a discontinuous-mode converter share one active switch, is studied. In this system, current-mode control is used to regulate the output voltage of the continuous-mode converter and the proposed D2T control is used to regulate the other discontinuous-mode converter. The result is a generic current-mode controlled two-output converter.
Keywords :
DC-DC power convertors; electric current control; switching convertors; voltage control; D2T control; continuous mode converter; current-mode control; dc-dc converter; discontinuous conduction mode; discontinuous mode converter; duty cycle; single-switch two-output boost converter; single-switch two-output switching power converters; voltage regulation; Capacitors; Control systems; DC-DC power converters; Electric variables control; Proportional control; Regulators; Switches; Switching converters; Switching frequency; Voltage control; Current-mode control; dc/dc converters; discontinuous conduction mode; double converters;
fLanguage :
English
Journal_Title :
Power Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8993
Type :
jour
DOI :
10.1109/TPEL.2005.850942
Filename :
1461470
Link To Document :
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