Efficient voltage feed-forward algorithms for switched mode power supplies

Author

Karlsson, Magnus ; Wahledow, Fredrik ; Lenells, Matz

Author_Institution

R&D Ericsson Power Modules, Kalmar, Sweden

fYear

2011

fDate

6-11 March 2011

Firstpage

1743

Lastpage

1747

Abstract

We present a number of approximation algorithms for voltage feedforward compensation of Switch Mode Power Supplies. The complexity of the algorithms differs, as well as their ability to suppress input voltage transients. The compensation is attained by manipulating the integral part of the feedback control law reducing the computation requirements and makes it suitable for firmware realization in standard Digital Pulse Width Modulation Integrated Circuits or as resource and power efficient implementations in ASICs.

Keywords

approximation theory; digital control; feedforward; power control; switched mode power supplies; ASIC; approximation algorithms; digital power controller; digital pulse width modulation integrated circuits; efficient voltage feed-forward algorithms; feedback control law; firmware; input voltage transients; switched mode power supplies; voltage feedforward compensation; Approximation algorithms; Approximation methods; Feedforward neural networks; Integrated circuits; Switches; Transient analysis; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2011 Twenty-Sixth Annual IEEE

Conference_Location

Fort Worth, TX

ISSN

1048-2334

Print_ISBN

978-1-4244-8084-5

Type

conf

DOI

10.1109/APEC.2011.5744831

Filename

5744831