An Advanced Design Solution for the 48V Isolated Voltage Regulator Modules

Author

Youssef, Mohamed Z. ; Jain, Praveen K.

Author_Institution

Dept. of Electr. & Comput. Eng., Queen´´s Univ.

Volume

2

fYear

2006

fDate

9-13 July 2006

Firstpage

1036

Lastpage

1041

Abstract

This paper presents a promising design for a 48 V voltage regulator module (VRM). The converter employs a new control scheme in order to fasten the transient characteristics. Both sides of the isolating transformer has its own control loop to eliminate the delay time caused by the control loop coupling between primary and secondary sides. Feed forward asymmetrical pulse width modulation control (FFAPWM) is used to precisely regulate the input voltage at the primary side. Self-sustained oscillation controller (SSOC) is used to compensate for the load variations on the secondary side. Analysis is presented and supported by a design example of a 100 W converter. The analytical design guidelines are given along with the simulation results to provide the proof of concept

Keywords

PWM power convertors; delays; feedforward; modules; oscillations; power transformers; transient analysis; voltage regulators; 100 W; 48 V; control loop coupling; feedforward asymmetrical pulse width modulation control; isolation transformer; self-sustained oscillation controller; voltage regulator modules; Analytical models; Delay effects; Feeds; Guidelines; Load management; Pulse transformers; Pulse width modulation; Regulators; Space vector pulse width modulation; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2006 IEEE International Symposium on

Conference_Location

Montreal, Que.

Print_ISBN

1-4244-0496-7

Electronic_ISBN

1-4244-0497-5

Type

conf

DOI

10.1109/ISIE.2006.295779

Filename

4078229