Title :
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
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;
Conference_Titel :
Power Electronics Specialists Conference, PESC '94 Record., 25th Annual IEEE
Conference_Location :
Taipei
Print_ISBN :
0-7803-1859-5
DOI :
10.1109/PESC.1994.349667
