DCM analysis and modeling of half-bridge converters with current-doubler rectifier

Author

Sun, Jian ; Rajasekaran, Vinod

Author_Institution

Adv. Technol. Center, Rockwell Collins, Inc., Cedar Rapids, IA, USA

Volume

1

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

384

Abstract

Discontinuous operation of a half-bridge PWM power converter with a current-doubler rectifier is analyzed in this paper. The converter is found to exhibit six different discontinuous conduction modes depending on the control methods (symmetrical or asymmetrical control) as well as whether discrete or integrated magnetics are used. The definition of each mode, boundary conditions among the different modes, and steady-state characteristics of the converter under each mode are presented. Simulation and experimental results are provided for verification of the analysis results

Keywords

AC-DC power convertors; PWM power convertors; bridge circuits; control system analysis; power transformers; rectifying circuits; transformer windings; voltage control; DCM analysis; boundary conditions; control methods; current-doubler rectifier; discontinuous conduction modes; discrete magnetics; half-bridge PWM power converters; integrated magnetics; mode; steady-state characteristics; Boundary conditions; Diodes; Inductors; Low voltage; Magnetic analysis; Pulse width modulation; Rectifiers; Steady-state; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual

Conference_Location

Vancouver, BC

ISSN

0275-9306

Print_ISBN

0-7803-7067-8

Type

conf

DOI

10.1109/PESC.2001.954050

Filename

954050