Analysis and simulation of same cycle transient control (SCTC) for application in voltage regulator modules (VRM)

Author

Yu, Qinghong ; Dillard, William C. ; Nelms, R.M.

Author_Institution

Dept. of Electr. & Comput. Eng., Auburn Univ., AL, USA

fYear

2004

fDate

29-31 July 2004

Firstpage

635

Lastpage

640

Abstract

A method to improve the transient response of a VRM is developed in this paper through Pspice simulation. By using another compensator converter with very quick response, a compensation current is injected or extracted according to the transient type. This compensation is triggered by comparators monitoring the output voltage to accomplish the same cycle transient control. The compensation current can be tailored for the main converter for best possible transient response. Each of these converters are optimized for a different purpose to obtain optimum overall performance. The tradeoff of speed, efficiency, and stability is thus resolved.

Keywords

SPICE; compensation; optimisation; power convertors; transient response; voltage regulators; Pspice simulation; comparators monitoring; compensation current; compensator converter; optimization; optimum overall performance; same cycle transient control; transient response; voltage regulator modules; Analytical models; Bandwidth; Delay; Microprocessors; Packaging; Pulse width modulation; Regulators; Transient analysis; Transient response; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Engineering Conference, 2002. IECEC '02. 2002 37th Intersociety

Print_ISBN

0-7803-7296-4

Type

conf

DOI

10.1109/IECEC.2002.1392120

Filename

1392120