An active current clamping circuit for a series resonant DC link power converter

Author

Castanheira, R.C. ; Cardoso Fo., B.J. ; Menezes, B.R. ; Garcia, P. Donoso ; Moreira, A.F.

Author_Institution

Centro de Pesquisa e Desenvolvimento em Engenharia Eletrica, Univ. Federal de Minas Gerais, Belo Horizonte, Brazil

fYear

1994

fDate

20-25 Jun 1994

Firstpage

659

Abstract

A current clamping circuit for a series resonant DC link converter is derived by duality from a well known circuit for the parallel resonant DC link converter. This clamping circuit is capable of reducing current peaks to about 1.2-1.4 times the DC bias current. Proper control of the triggering instant eliminates irregular high current peaks common in this topology, making the pulse amplitudes uniform at the clamping value, no matter what the converter switching sequence is. A design methodology is proposed and simulated results are presented

Keywords

circuit analysis computing; circuit resonance; digital simulation; electric current control; power convertors; power engineering computing; switching circuits; DC bias current; active current clamping circuit; current peaks reduction; series resonant DC link power converter; simulated results; triggering control; uniform pulse amplitudes; Circuit topology; Clamps; Design methodology; Equivalent circuits; RLC circuits; Resonance; Switches; Switching circuits; Switching converters; Thyristors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, PESC '94 Record., 25th Annual IEEE

Conference_Location

Taipei

Print_ISBN

0-7803-1859-5

Type

conf

DOI

10.1109/PESC.1994.349667

Filename

349667