Adaptive Output Current Feedforward Control in VR Applications

Author

Eirea, Gabriel ; Sanders, Seth R.

Author_Institution

Univ. de la Republica, Montevideo

fYear

2007

Firstpage

9

Lastpage

14

Abstract

A method for adapting the gain of an output current feedforward path in VR applications is presented. For regulators using adaptive voltage positioning (AVP), output current feedforward can improve the dynamic response to fast load transients. However, the feedforward path depends on parameters of the power train that are not known with precision. By analyzing the error voltage and finding its correlation with the parameter error, a gradient algorithm is derived that makes the parameter error vanish and minimizes the voltage error.

Keywords

adaptive control; dynamic response; electric current control; error analysis; feedforward; gradient methods; transients; voltage regulators; VR applications; adaptive output current feedforward control; adaptive regulators; adaptive voltage positioning; dynamic response; error analysis; gradient algorithm; load transients; power train; Adaptive control; Application software; Capacitors; Frequency; Impedance; Paramagnetic resonance; Programmable control; Regulators; Virtual reality; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2007. PESC 2007. IEEE

Conference_Location

Orlando, FL

ISSN

0275-9306

Print_ISBN

978-1-4244-0654-8

Electronic_ISBN

0275-9306

Type

conf

DOI

10.1109/PESC.2007.4341952

Filename

4341952