Digital Control of Switch-Mode Welding Machine using FPGA

Author

Rauma, Kalle ; Laakkonen, O. ; Luukko, J. ; Pajari, I. ; Pyrhonen, Olli

Author_Institution

Dept. of Electr. Eng., Lappeenranta Univ. of Technol.

fYear

2006

fDate

18-22 June 2006

Firstpage

1

Lastpage

5

Abstract

Development of FPGAs (field programmable gate array) allows those to be used as modern control platforms for power electronics. The increase of the computational power makes it possible to implement a whole control system inside one chip. Massive parallel computing resources can be utilized in digital control of power electronics. In this paper a switch-mode welding machine control is presented. A control consisting of both analog and digital parts is replaced with a new digital control implemented in a Spartan-3 FPGA device. As a result step response behaviour is presented with both controls and with fully digital control overshoot is removed almost completely

Keywords

digital control; field programmable gate arrays; switched mode power supplies; welding equipment; FPGA; Spartan-3 FPGA device; digital control; field programmable gate array; modern control platforms; parallel computing; switch-mode welding machine; Application specific integrated circuits; Computer architecture; Control systems; Digital control; Digital signal processing; Field programmable gate arrays; Logic design; Power electronics; Voltage control; Welding;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE

Conference_Location

Jeju

ISSN

0275-9306

Print_ISBN

0-7803-9716-9

Type

conf

DOI

10.1109/PESC.2006.1711790

Filename

1711790