Title :
PWM-PD multiple output DC/DC converters: operation and control-loop modeling
Author :
Barrado, Andrés ; Olías, Emilio ; Lázaro, Antonio ; Pleite, Jorge ; Vázquez, Ramón
Author_Institution :
Grupo de Sistemas Electronicos de Potencia, Univ. Carlos III de Madrid, Spain
Abstract :
In this paper, PWM-PD multiple output dc/dc converters are presented. Operation analysis and power block design are shown. Furthermore, a small-signal model is developed for the PWM-PD multiple output dc/dc converters working in continuous conduction mode. The control-block is presented and the closed-loop circuit performances, such as the line, load and cross regulation, are obtained analytically. Finally, experimental results for a PWM-PD converter, with three fully regulated outputs and with transformer, are shown.
Keywords :
DC-DC power convertors; PWM power convertors; closed loop systems; transformers; PWM-PD multiple output DC-DC converters; PWM-pulse delay control; closed-loop circuit performance; continuous conduction mode; control-block; control-loop modeling; cross regulation; line regulation; load regulation; power block design; small-signal model; transformer; Circuits; Clamps; DC-DC power converters; Delay; Pulse width modulation; Pulse width modulation converters; Switches; Switching frequency; Terrorism; Voltage control;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2003.820567
